From 7c11eb42d4434c041f00a1f4d9668221d0151687 Mon Sep 17 00:00:00 2001 From: "Lukas F. Hartmann" Date: Sat, 22 Oct 2022 17:12:28 +0200 Subject: [PATCH 5/6] imx8mq: import HDMI driver and make DCSS compatible with both HDMI and LCDIF --- drivers/gpu/drm/bridge/cadence/Kconfig | 26 + drivers/gpu/drm/bridge/cadence/Makefile | 9 + drivers/gpu/drm/bridge/cadence/cdns-dp-core.c | 590 +++++++++ .../gpu/drm/bridge/cadence/cdns-hdmi-core.c | 689 +++++++++++ .../gpu/drm/bridge/cadence/cdns-mhdp-audio.c | 393 ++++++ .../gpu/drm/bridge/cadence/cdns-mhdp-cec.c | 341 ++++++ .../gpu/drm/bridge/cadence/cdns-mhdp-common.c | 1059 +++++++++++++++++ .../gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c | 357 ++++++ drivers/gpu/drm/bridge/cadence/cdns-mhdp.h | 209 ++++ drivers/gpu/drm/imx/Kconfig | 9 + drivers/gpu/drm/imx/Makefile | 4 + drivers/gpu/drm/imx/cdn-mhdp-dp-phy.c | 529 ++++++++ drivers/gpu/drm/imx/cdn-mhdp-hdmi-phy.c | 777 ++++++++++++ drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c | 211 ++++ drivers/gpu/drm/imx/cdn-mhdp-phy.h | 155 +++ drivers/gpu/drm/imx/cdns-mhdp-imx.h | 75 ++ drivers/gpu/drm/imx/dcss/dcss-dev.c | 20 +- drivers/gpu/drm/imx/dcss/dcss-dev.h | 1 + drivers/gpu/drm/imx/dcss/dcss-drv.c | 103 +- drivers/gpu/drm/imx/dcss/dcss-dtg.c | 25 +- drivers/gpu/drm/imx/dcss/dcss-kms.c | 46 +- drivers/gpu/drm/imx/dcss/dcss-kms.h | 4 +- include/drm/bridge/cdns-mhdp-cbs.h | 29 + include/drm/bridge/cdns-mhdp-common.h | 812 +++++++++++++ 24 files changed, 6427 insertions(+), 46 deletions(-) create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-dp-core.c create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-audio.c create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp.h create mode 100644 drivers/gpu/drm/imx/cdn-mhdp-dp-phy.c create mode 100644 drivers/gpu/drm/imx/cdn-mhdp-hdmi-phy.c create mode 100644 drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c create mode 100644 drivers/gpu/drm/imx/cdn-mhdp-phy.h create mode 100644 drivers/gpu/drm/imx/cdns-mhdp-imx.h create mode 100644 include/drm/bridge/cdns-mhdp-cbs.h create mode 100644 include/drm/bridge/cdns-mhdp-common.h diff --git a/drivers/gpu/drm/bridge/cadence/Kconfig b/drivers/gpu/drm/bridge/cadence/Kconfig index 1d06182..5aa976e 100644 --- a/drivers/gpu/drm/bridge/cadence/Kconfig +++ b/drivers/gpu/drm/bridge/cadence/Kconfig @@ -25,3 +25,29 @@ config DRM_CDNS_MHDP8546_J721E initializes the J721E Display Port and sets up the clock and data muxes. endif + +config DRM_CDNS_MHDP + tristate "Cadence MHDP COMMON API driver" + select DRM_KMS_HELPER + select DRM_PANEL_BRIDGE + depends on OF + help + Support Cadence MHDP API library. + +config DRM_CDNS_HDMI + tristate "Cadence HDMI DRM driver" + depends on DRM_CDNS_MHDP + +config DRM_CDNS_DP + tristate "Cadence DP DRM driver" + depends on DRM_CDNS_MHDP + +config DRM_CDNS_AUDIO + tristate "Cadence MHDP Audio driver" + depends on DRM_CDNS_MHDP + +config DRM_CDNS_HDMI_CEC + tristate "Cadence MHDP HDMI CEC driver" + depends on DRM_CDNS_HDMI + select CEC_CORE + select CEC_NOTIFIER diff --git a/drivers/gpu/drm/bridge/cadence/Makefile b/drivers/gpu/drm/bridge/cadence/Makefile index 4d2db8d..a83e739 100644 --- a/drivers/gpu/drm/bridge/cadence/Makefile +++ b/drivers/gpu/drm/bridge/cadence/Makefile @@ -2,3 +2,12 @@ obj-$(CONFIG_DRM_CDNS_MHDP8546) += cdns-mhdp8546.o cdns-mhdp8546-y := cdns-mhdp8546-core.o cdns-mhdp8546-hdcp.o cdns-mhdp8546-$(CONFIG_DRM_CDNS_MHDP8546_J721E) += cdns-mhdp8546-j721e.o + +cdns_mhdp_drmcore-y := cdns-mhdp-common.o cdns-mhdp-hdmi.o + +cdns_mhdp_drmcore-$(CONFIG_DRM_CDNS_HDMI) += cdns-hdmi-core.o +#cdns_mhdp_drmcore-$(CONFIG_DRM_CDNS_DP) += cdns-dp-core.o +cdns_mhdp_drmcore-$(CONFIG_DRM_CDNS_AUDIO) += cdns-mhdp-audio.o +cdns_mhdp_drmcore-$(CONFIG_DRM_CDNS_HDMI_CEC) += cdns-mhdp-cec.o + +obj-$(CONFIG_DRM_CDNS_MHDP) += cdns_mhdp_drmcore.o diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c new file mode 100644 index 0000000..78defa0 --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c @@ -0,0 +1,590 @@ +/* + * Cadence Display Port Interface (DP) driver + * + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * This function only implements native DPDC reads and writes + */ +static ssize_t dp_aux_transfer(struct drm_dp_aux *aux, + struct drm_dp_aux_msg *msg) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(aux->dev); + bool native = msg->request & (DP_AUX_NATIVE_WRITE & DP_AUX_NATIVE_READ); + int ret; + + /* Ignore address only message */ + if ((msg->size == 0) || (msg->buffer == NULL)) { + msg->reply = native ? + DP_AUX_NATIVE_REPLY_ACK : DP_AUX_I2C_REPLY_ACK; + return msg->size; + } + + if (!native) { + dev_err(mhdp->dev, "%s: only native messages supported\n", __func__); + return -EINVAL; + } + + /* msg sanity check */ + if (msg->size > DP_AUX_MAX_PAYLOAD_BYTES) { + dev_err(mhdp->dev, "%s: invalid msg: size(%zu), request(%x)\n", + __func__, msg->size, (unsigned int)msg->request); + return -EINVAL; + } + + if (msg->request == DP_AUX_NATIVE_WRITE) { + const u8 *buf = msg->buffer; + int i; + for (i = 0; i < msg->size; ++i) { + ret = cdns_mhdp_dpcd_write(mhdp, + msg->address + i, buf[i]); + if (!ret) + continue; + + DRM_DEV_ERROR(mhdp->dev, "Failed to write DPCD\n"); + + return ret; + } + } + + if (msg->request == DP_AUX_NATIVE_READ) { + ret = cdns_mhdp_dpcd_read(mhdp, msg->address, msg->buffer, msg->size); + if (ret < 0) + return -EIO; + msg->reply = DP_AUX_NATIVE_REPLY_ACK; + return msg->size; + } + return 0; +} + +static int dp_aux_init(struct cdns_mhdp_device *mhdp, + struct device *dev) +{ + int ret; + + mhdp->dp.aux.name = "imx_dp_aux"; + mhdp->dp.aux.dev = dev; + mhdp->dp.aux.transfer = dp_aux_transfer; + + ret = drm_dp_aux_register(&mhdp->dp.aux); + + return ret; +} + +static int dp_aux_destroy(struct cdns_mhdp_device *mhdp) +{ + drm_dp_aux_unregister(&mhdp->dp.aux); + return 0; +} + +static void dp_pixel_clk_reset(struct cdns_mhdp_device *mhdp) +{ + u32 val; + + /* reset pixel clk */ + val = cdns_mhdp_reg_read(mhdp, SOURCE_HDTX_CAR); + cdns_mhdp_reg_write(mhdp, SOURCE_HDTX_CAR, val & 0xFD); + cdns_mhdp_reg_write(mhdp, SOURCE_HDTX_CAR, val); +} + +static void cdns_dp_mode_set(struct cdns_mhdp_device *mhdp) +{ + u32 lane_mapping = mhdp->lane_mapping; + struct drm_dp_link *link = &mhdp->dp.link; + char linkid[6]; + int ret; + + cdns_mhdp_plat_call(mhdp, pclk_rate); + + /* delay for DP FW stable after pixel clock relock */ + msleep(50); + + dp_pixel_clk_reset(mhdp); + + ret = drm_dp_downstream_id(&mhdp->dp.aux, linkid); + if (ret < 0) { + DRM_INFO("Failed to Get DP link ID: %d\n", ret); + return; + } + DRM_INFO("DP link id: %s, 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", + linkid, linkid[0], linkid[1], linkid[2], linkid[3], linkid[4], + linkid[5]); + + /* Check dp link */ + ret = drm_dp_link_probe(&mhdp->dp.aux, link); + if (ret < 0) { + DRM_INFO("Failed to probe DP link: %d\n", ret); + return; + } + DRM_INFO("DP revision: 0x%x\n", link->revision); + DRM_INFO("DP rate: %d Mbps\n", link->rate); + DRM_INFO("DP number of lanes: %d\n", link->num_lanes); + DRM_INFO("DP capabilities: 0x%lx\n", link->capabilities); + + /* check the max link rate */ + if (link->rate > CDNS_DP_MAX_LINK_RATE) + link->rate = CDNS_DP_MAX_LINK_RATE; + + drm_dp_link_power_up(&mhdp->dp.aux, link); + if (ret < 0) { + DRM_INFO("Failed to power DP link: %d\n", ret); + return; + } + + /* Initialize link rate/num_lanes as panel max link rate/max_num_lanes */ + cdns_mhdp_plat_call(mhdp, phy_set); + + /* Video off */ + ret = cdns_mhdp_set_video_status(mhdp, CONTROL_VIDEO_IDLE); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed to valid video %d\n", ret); + return; + } + + /* Line swaping */ + cdns_mhdp_reg_write(mhdp, LANES_CONFIG, 0x00400000 | lane_mapping); + + /* Set DP host capability */ + ret = cdns_mhdp_set_host_cap(mhdp, false); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed to set host cap %d\n", ret); + return; + } + + ret = cdns_mhdp_config_video(mhdp); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed to config video %d\n", ret); + return; + } + + return; +} + +/* ----------------------------------------------------------------------------- + * dp TX Setup + */ +static enum drm_connector_status +cdns_dp_connector_detect(struct drm_connector *connector, bool force) +{ + struct cdns_mhdp_device *mhdp = container_of(connector, + struct cdns_mhdp_device, connector.base); + u8 hpd = 0xf; + + hpd = cdns_mhdp_read_hpd(mhdp); + if (hpd == 1) + /* Cable Connected */ + return connector_status_connected; + else if (hpd == 0) + /* Cable Disconnedted */ + return connector_status_disconnected; + else { + /* Cable status unknown */ + DRM_INFO("Unknow cable status, hdp=%u\n", hpd); + return connector_status_unknown; + } +} + +static int cdns_dp_connector_get_modes(struct drm_connector *connector) +{ + struct cdns_mhdp_device *mhdp = container_of(connector, + struct cdns_mhdp_device, connector.base); + int num_modes = 0; + struct edid *edid; + + edid = drm_do_get_edid(&mhdp->connector.base, + cdns_mhdp_get_edid_block, mhdp); + if (edid) { + dev_info(mhdp->dev, "%x,%x,%x,%x,%x,%x,%x,%x\n", + edid->header[0], edid->header[1], + edid->header[2], edid->header[3], + edid->header[4], edid->header[5], + edid->header[6], edid->header[7]); + drm_connector_update_edid_property(connector, edid); + num_modes = drm_add_edid_modes(connector, edid); + kfree(edid); + } + + if (num_modes == 0) + DRM_ERROR("Invalid edid\n"); + return num_modes; +} + +static const struct drm_connector_funcs cdns_dp_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .detect = cdns_dp_connector_detect, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static const struct drm_connector_helper_funcs cdns_dp_connector_helper_funcs = { + .get_modes = cdns_dp_connector_get_modes, +}; + +static int cdns_dp_bridge_attach(struct drm_bridge *bridge) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + struct drm_encoder *encoder = bridge->encoder; + struct drm_connector *connector = &mhdp->connector.base; + + connector->interlace_allowed = 1; + + if (mhdp->is_hpd) + connector->polled = DRM_CONNECTOR_POLL_HPD; + else + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + + drm_connector_helper_add(connector, &cdns_dp_connector_helper_funcs); + + drm_connector_init(bridge->dev, connector, &cdns_dp_connector_funcs, + DRM_MODE_CONNECTOR_DisplayPort); + + drm_connector_attach_encoder(connector, encoder); + + return 0; +} + +static enum drm_mode_status +cdns_dp_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_mode *mode) +{ + enum drm_mode_status mode_status = MODE_OK; + + /* We don't support double-clocked modes */ + if (mode->flags & DRM_MODE_FLAG_DBLCLK || + mode->flags & DRM_MODE_FLAG_INTERLACE) + return MODE_BAD; + + /* MAX support pixel clock rate 594MHz */ + if (mode->clock > 594000) + return MODE_CLOCK_HIGH; + + /* 4096x2160 is not supported now */ + if (mode->hdisplay > 3840) + return MODE_BAD_HVALUE; + + if (mode->vdisplay > 2160) + return MODE_BAD_VVALUE; + + return mode_status; +} + +static void cdns_dp_bridge_mode_set(struct drm_bridge *bridge, + const struct drm_display_mode *orig_mode, + const struct drm_display_mode *mode) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + struct drm_display_info *display_info = &mhdp->connector.base.display_info; + struct video_info *video = &mhdp->video_info; + + switch (display_info->bpc) { + case 10: + video->color_depth = 10; + break; + case 6: + video->color_depth = 6; + break; + default: + video->color_depth = 8; + break; + } + + video->color_fmt = PXL_RGB; + video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC); + video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC); + + DRM_INFO("Mode: %dx%dp%d\n", mode->hdisplay, mode->vdisplay, mode->clock); + memcpy(&mhdp->mode, mode, sizeof(struct drm_display_mode)); + + mutex_lock(&mhdp->lock); + cdns_dp_mode_set(mhdp); + mutex_unlock(&mhdp->lock); + + /* reset force mode set flag */ + mhdp->force_mode_set = false; +} + +static void cdn_dp_bridge_enable(struct drm_bridge *bridge) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + int ret; + + drm_dp_link_power_up(&mhdp->dp.aux, &mhdp->dp.link); + + /* Link trainning */ + ret = cdns_mhdp_train_link(mhdp); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed link train %d\n", ret); + return; + } + + ret = cdns_mhdp_set_video_status(mhdp, CONTROL_VIDEO_VALID); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed to valid video %d\n", ret); + return; + } +} + +static void cdn_dp_bridge_disable(struct drm_bridge *bridge) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + + cdns_mhdp_set_video_status(mhdp, CONTROL_VIDEO_IDLE); +} + +static const struct drm_bridge_funcs cdns_dp_bridge_funcs = { + .attach = cdns_dp_bridge_attach, + .enable = cdn_dp_bridge_enable, + .disable = cdn_dp_bridge_disable, + .mode_set = cdns_dp_bridge_mode_set, + .mode_valid = cdns_dp_bridge_mode_valid, +}; + +static void hotplug_work_func(struct work_struct *work) +{ + struct cdns_mhdp_device *mhdp = container_of(work, + struct cdns_mhdp_device, hotplug_work.work); + struct drm_connector *connector = &mhdp->connector.base; + + drm_helper_hpd_irq_event(connector->dev); + + if (connector->status == connector_status_connected) { + /* Cable connedted */ + DRM_INFO("HDMI/DP Cable Plug In\n"); + enable_irq(mhdp->irq[IRQ_OUT]); + } else if (connector->status == connector_status_disconnected) { + /* Cable Disconnedted */ + DRM_INFO("HDMI/DP Cable Plug Out\n"); + /* force mode set for cable replugin to recovery DP video modes */ + mhdp->force_mode_set = true; + enable_irq(mhdp->irq[IRQ_IN]); + } +} + +static irqreturn_t cdns_dp_irq_thread(int irq, void *data) +{ + struct cdns_mhdp_device *mhdp = data; + + disable_irq_nosync(irq); + + mod_delayed_work(system_wq, &mhdp->hotplug_work, + msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS)); + + return IRQ_HANDLED; +} + +static void cdns_dp_parse_dt(struct cdns_mhdp_device *mhdp) +{ + struct device_node *of_node = mhdp->dev->of_node; + int ret; + + ret = of_property_read_u32(of_node, "lane-mapping", + &mhdp->lane_mapping); + if (ret) { + mhdp->lane_mapping = 0xc6; + dev_warn(mhdp->dev, "Failed to get lane_mapping - using default 0xc6\n"); + } + dev_info(mhdp->dev, "lane-mapping 0x%02x\n", mhdp->lane_mapping); +} + +static int __cdns_dp_probe(struct platform_device *pdev, + struct cdns_mhdp_device *mhdp) +{ + struct device *dev = &pdev->dev; + struct resource *iores = NULL; + int ret; + + mutex_init(&mhdp->lock); + mutex_init(&mhdp->iolock); + + INIT_DELAYED_WORK(&mhdp->hotplug_work, hotplug_work_func); + + iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (iores) { + mhdp->regs_base = devm_ioremap(dev, iores->start, + resource_size(iores)); + if (IS_ERR(mhdp->regs_base)) + return -ENOMEM; + } + + iores = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (iores) { + mhdp->regs_sec = devm_ioremap(dev, iores->start, + resource_size(iores)); + if (IS_ERR(mhdp->regs_sec)) + return -ENOMEM; + } + + mhdp->is_hpd = true; + mhdp->is_ls1028a = false; + + mhdp->irq[IRQ_IN] = platform_get_irq_byname(pdev, "plug_in"); + if (mhdp->irq[IRQ_IN] < 0) { + mhdp->is_hpd = false; + dev_info(dev, "No plug_in irq number\n"); + } + + mhdp->irq[IRQ_OUT] = platform_get_irq_byname(pdev, "plug_out"); + if (mhdp->irq[IRQ_OUT] < 0) { + mhdp->is_hpd = false; + dev_info(dev, "No plug_out irq number\n"); + } + + cdns_dp_parse_dt(mhdp); + + if (of_device_is_compatible(dev->of_node, "cdn,ls1028a-dp")) + mhdp->is_ls1028a = true; + + cdns_mhdp_plat_call(mhdp, power_on); + + cdns_mhdp_plat_call(mhdp, firmware_init); + + /* DP FW alive check */ + ret = cdns_mhdp_check_alive(mhdp); + if (ret == false) { + DRM_ERROR("NO dp FW running\n"); + return -ENXIO; + } + + /* DP PHY init before AUX init */ + cdns_mhdp_plat_call(mhdp, phy_set); + + /* Enable Hotplug Detect IRQ thread */ + if (mhdp->is_hpd) { + irq_set_status_flags(mhdp->irq[IRQ_IN], IRQ_NOAUTOEN); + ret = devm_request_threaded_irq(dev, mhdp->irq[IRQ_IN], + NULL, cdns_dp_irq_thread, + IRQF_ONESHOT, dev_name(dev), + mhdp); + + if (ret) { + dev_err(dev, "can't claim irq %d\n", + mhdp->irq[IRQ_IN]); + return -EINVAL; + } + + irq_set_status_flags(mhdp->irq[IRQ_OUT], IRQ_NOAUTOEN); + ret = devm_request_threaded_irq(dev, mhdp->irq[IRQ_OUT], + NULL, cdns_dp_irq_thread, + IRQF_ONESHOT, dev_name(dev), + mhdp); + + if (ret) { + dev_err(dev, "can't claim irq %d\n", + mhdp->irq[IRQ_OUT]); + return -EINVAL; + } + + if (cdns_mhdp_read_hpd(mhdp)) + enable_irq(mhdp->irq[IRQ_OUT]); + else + enable_irq(mhdp->irq[IRQ_IN]); + } + + mhdp->bridge.base.driver_private = mhdp; + mhdp->bridge.base.funcs = &cdns_dp_bridge_funcs; +#ifdef CONFIG_OF + mhdp->bridge.base.of_node = dev->of_node; +#endif + + dev_set_drvdata(dev, mhdp); + + /* register audio driver */ + cdns_mhdp_register_audio_driver(dev); + + dp_aux_init(mhdp, dev); + + return 0; +} + +static void __cdns_dp_remove(struct cdns_mhdp_device *mhdp) +{ + dp_aux_destroy(mhdp); + cdns_mhdp_unregister_audio_driver(mhdp->dev); +} + +/* ----------------------------------------------------------------------------- + * Probe/remove API, used from platforms based on the DRM bridge API. + */ +int cdns_dp_probe(struct platform_device *pdev, + struct cdns_mhdp_device *mhdp) +{ + int ret; + + ret = __cdns_dp_probe(pdev, mhdp); + if (ret) + return ret; + + drm_bridge_add(&mhdp->bridge.base); + + return 0; +} +EXPORT_SYMBOL_GPL(cdns_dp_probe); + +void cdns_dp_remove(struct platform_device *pdev) +{ + struct cdns_mhdp_device *mhdp = platform_get_drvdata(pdev); + + drm_bridge_remove(&mhdp->bridge.base); + + __cdns_dp_remove(mhdp); +} +EXPORT_SYMBOL_GPL(cdns_dp_remove); + +/* ----------------------------------------------------------------------------- + * Bind/unbind API, used from platforms based on the component framework. + */ +int cdns_dp_bind(struct platform_device *pdev, struct drm_encoder *encoder, + struct cdns_mhdp_device *mhdp) +{ + int ret; + + ret = __cdns_dp_probe(pdev, mhdp); + if (ret < 0) + return ret; + + ret = drm_bridge_attach(encoder, &mhdp->bridge.base, NULL); + if (ret) { + cdns_dp_remove(pdev); + DRM_ERROR("Failed to initialize bridge with drm\n"); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(cdns_dp_bind); + +void cdns_dp_unbind(struct device *dev) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + + __cdns_dp_remove(mhdp); +} +EXPORT_SYMBOL_GPL(cdns_dp_unbind); + +MODULE_AUTHOR("Sandor Yu "); +MODULE_DESCRIPTION("Cadence Display Port transmitter driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cdn-dp"); diff --git a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c new file mode 100644 index 0000000..16f4b21 --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c @@ -0,0 +1,689 @@ +/* + * Cadence High-Definition Multimedia Interface (HDMI) driver + * + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static void hdmi_sink_config(struct cdns_mhdp_device *mhdp) +{ + struct drm_scdc *scdc = &mhdp->connector.base.display_info.hdmi.scdc; + u8 buff = 0; + + /* Default work in HDMI1.4 */ + mhdp->hdmi.hdmi_type = MODE_HDMI_1_4; + + /* check sink support SCDC or not */ + if (scdc->supported != true) { + printk(KERN_ALERT "cdns-hdmi-core: Sink Not Support SCDC\n"); + return; + } + + if (mhdp->hdmi.char_rate > 340000) { + /* + * TMDS Character Rate above 340MHz should working in HDMI2.0 + * Enable scrambling and TMDS_Bit_Clock_Ratio + */ + buff = SCDC_TMDS_BIT_CLOCK_RATIO_BY_40 | SCDC_SCRAMBLING_ENABLE; + mhdp->hdmi.hdmi_type = MODE_HDMI_2_0; + } else if (scdc->scrambling.low_rates) { + /* + * Enable scrambling and HDMI2.0 when scrambling capability of sink + * be indicated in the HF-VSDB LTE_340Mcsc_scramble bit + */ + buff = SCDC_SCRAMBLING_ENABLE; + mhdp->hdmi.hdmi_type = MODE_HDMI_2_0; + } + + /* TMDS config */ + cdns_hdmi_scdc_write(mhdp, 0x20, buff); +} + +static void hdmi_lanes_config(struct cdns_mhdp_device *mhdp) +{ + /* Line swapping */ + cdns_mhdp_reg_write(mhdp, LANES_CONFIG, 0x00400000 | mhdp->lane_mapping); +} + +static int hdmi_avi_info_set(struct cdns_mhdp_device *mhdp, + struct drm_display_mode *mode) +{ + struct hdmi_avi_infoframe frame; + int format = mhdp->video_info.color_fmt; + struct drm_connector_state *conn_state = mhdp->connector.base.state; + struct drm_display_mode *adj_mode; + enum hdmi_quantization_range qr; + u8 buf[32]; + int ret; + + /* Initialise info frame from DRM mode */ + drm_hdmi_avi_infoframe_from_display_mode(&frame, &mhdp->connector.base, + mode); + + switch (format) { + case YCBCR_4_4_4: + frame.colorspace = HDMI_COLORSPACE_YUV444; + break; + case YCBCR_4_2_2: + frame.colorspace = HDMI_COLORSPACE_YUV422; + break; + case YCBCR_4_2_0: + frame.colorspace = HDMI_COLORSPACE_YUV420; + break; + default: + frame.colorspace = HDMI_COLORSPACE_RGB; + break; + } + + drm_hdmi_avi_infoframe_colorimetry(&frame, conn_state); + + adj_mode = &mhdp->bridge.base.encoder->crtc->state->adjusted_mode; + + qr = drm_default_rgb_quant_range(adj_mode); + + drm_hdmi_avi_infoframe_quant_range(&frame, &mhdp->connector.base, + adj_mode, qr); + + ret = hdmi_avi_infoframe_check(&frame); + if (WARN_ON(ret)) + return false; + + ret = hdmi_avi_infoframe_pack(&frame, buf + 1, sizeof(buf) - 1); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: failed to pack AVI infoframe: %d\n", ret); + return -1; + } + + buf[0] = 0; + cdns_mhdp_infoframe_set(mhdp, 0, sizeof(buf), buf, HDMI_INFOFRAME_TYPE_AVI); + return 0; +} + +static void hdmi_vendor_info_set(struct cdns_mhdp_device *mhdp, + struct drm_display_mode *mode) +{ + struct hdmi_vendor_infoframe frame; + u8 buf[32]; + int ret; + + /* Initialise vendor frame from DRM mode */ + ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame, &mhdp->connector.base, mode); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: No vendor infoframe\n"); + return; + } + + ret = hdmi_vendor_infoframe_pack(&frame, buf + 1, sizeof(buf) - 1); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: Unable to pack vendor infoframe: %d\n", ret); + return; + } + + buf[0] = 0; + cdns_mhdp_infoframe_set(mhdp, 3, sizeof(buf), buf, HDMI_INFOFRAME_TYPE_VENDOR); +} + +static void hdmi_drm_info_set(struct cdns_mhdp_device *mhdp) +{ + struct drm_connector_state *conn_state; + struct hdmi_drm_infoframe frame; + u8 buf[32]; + int ret; + + conn_state = mhdp->connector.base.state; + + if (!conn_state->hdr_output_metadata) + return; + + ret = drm_hdmi_infoframe_set_hdr_metadata(&frame, conn_state); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: couldn't set HDR metadata in infoframe\n"); + return; + } + + ret = hdmi_drm_infoframe_pack(&frame, buf + 1, sizeof(buf) - 1); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: couldn't pack HDR infoframe\n"); + return; + } + + buf[0] = 0; + cdns_mhdp_infoframe_set(mhdp, 3, sizeof(buf), + buf, HDMI_INFOFRAME_TYPE_DRM); +} + +void cdns_hdmi_mode_set(struct cdns_mhdp_device *mhdp) +{ + struct drm_display_mode *mode = &mhdp->mode; + int ret; + + /* video mode valid check */ + if (mode->clock == 0 || mode->hdisplay == 0 || mode->vdisplay == 0) + return; + + hdmi_lanes_config(mhdp); + + cdns_mhdp_plat_call(mhdp, pclk_rate); + + /* delay for HDMI FW stable after pixel clock relock */ + msleep(20); + + cdns_mhdp_plat_call(mhdp, phy_set); + + hdmi_sink_config(mhdp); + + ret = cdns_hdmi_ctrl_init(mhdp, mhdp->hdmi.hdmi_type, mhdp->hdmi.char_rate); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: %s, ret = %d\n", __func__, ret); + return; + } + + /* Config GCP */ + if (mhdp->video_info.color_depth == 8) + cdns_hdmi_disable_gcp(mhdp); + else + cdns_hdmi_enable_gcp(mhdp); + + ret = hdmi_avi_info_set(mhdp, mode); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: %s ret = %d\n", __func__, ret); + return; + } + + /* vendor info frame is enable only when HDMI1.4 4K mode */ + hdmi_vendor_info_set(mhdp, mode); + + hdmi_drm_info_set(mhdp); + + ret = cdns_hdmi_mode_config(mhdp, mode, &mhdp->video_info); + if (ret < 0) { + printk(KERN_ALERT "cdns-hdmi-core: CDN_API_HDMITX_SetVic_blocking ret = %d\n", ret); + return; + } +} + +static enum drm_connector_status +cdns_hdmi_connector_detect(struct drm_connector *connector, bool force) +{ + struct cdns_mhdp_device *mhdp = + container_of(connector, struct cdns_mhdp_device, connector.base); + + u8 hpd = 0xf; + + hpd = cdns_mhdp_read_hpd(mhdp); + + if (hpd == 1) + /* Cable Connected */ + return connector_status_connected; + else if (hpd == 0) + /* Cable Disconnedted */ + return connector_status_disconnected; + else { + /* Cable status unknown */ + printk(KERN_ALERT "cdns-hdmi-core: Unknown cable status, hdp=%u\n", hpd); + return connector_status_unknown; + } +} + +static int cdns_hdmi_connector_get_modes(struct drm_connector *connector) +{ + struct cdns_mhdp_device *mhdp = + container_of(connector, struct cdns_mhdp_device, connector.base); + int num_modes = 0; + struct edid *edid; + + edid = drm_do_get_edid(&mhdp->connector.base, + cdns_hdmi_get_edid_block, mhdp); + if (edid) { + dev_info(mhdp->dev, "%x,%x,%x,%x,%x,%x,%x,%x\n", + edid->header[0], edid->header[1], + edid->header[2], edid->header[3], + edid->header[4], edid->header[5], + edid->header[6], edid->header[7]); + drm_connector_update_edid_property(connector, edid); + num_modes = drm_add_edid_modes(connector, edid); + kfree(edid); + } + + if (num_modes == 0) + printk(KERN_ALERT "cdns-hdmi-core: Invalid edid\n"); + return num_modes; +} + +static bool blob_equal(const struct drm_property_blob *a, + const struct drm_property_blob *b) +{ + if (a && b) + return a->length == b->length && + !memcmp(a->data, b->data, a->length); + + return !a == !b; +} + +static int cdns_hdmi_connector_atomic_check(struct drm_connector *connector, + struct drm_atomic_state *state) +{ + struct drm_connector_state *new_con_state = + drm_atomic_get_new_connector_state(state, connector); + struct drm_connector_state *old_con_state = + drm_atomic_get_old_connector_state(state, connector); + struct drm_crtc *crtc = new_con_state->crtc; + struct drm_crtc_state *new_crtc_state; + + if (!blob_equal(new_con_state->hdr_output_metadata, + old_con_state->hdr_output_metadata) || + new_con_state->colorspace != old_con_state->colorspace) { + new_crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(new_crtc_state)) + return PTR_ERR(new_crtc_state); + + new_crtc_state->mode_changed = + !new_con_state->hdr_output_metadata || + !old_con_state->hdr_output_metadata || + new_con_state->colorspace != old_con_state->colorspace; + } + + return 0; +} + +static const struct drm_connector_funcs cdns_hdmi_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .detect = cdns_hdmi_connector_detect, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static const struct drm_connector_helper_funcs cdns_hdmi_connector_helper_funcs = { + .get_modes = cdns_hdmi_connector_get_modes, + .atomic_check = cdns_hdmi_connector_atomic_check, +}; + +static int cdns_hdmi_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + struct drm_mode_config *config = &bridge->dev->mode_config; + struct drm_encoder *encoder = bridge->encoder; + struct drm_connector *connector = &mhdp->connector.base; + + connector->interlace_allowed = 1; + connector->polled = DRM_CONNECTOR_POLL_HPD; + + drm_connector_helper_add(connector, &cdns_hdmi_connector_helper_funcs); + + drm_connector_init(bridge->dev, connector, &cdns_hdmi_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA); + + if (!strncmp("imx8mq-hdmi", mhdp->plat_data->plat_name, 11)) { + drm_object_attach_property(&connector->base, + config->hdr_output_metadata_property, + 0); + + if (!drm_mode_create_hdmi_colorspace_property(connector)) + drm_object_attach_property(&connector->base, + connector->colorspace_property, + 0); + } + + drm_connector_attach_encoder(connector, encoder); + + return 0; +} + +static enum drm_mode_status +cdns_hdmi_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_info *info, + const struct drm_display_mode *mode) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + enum drm_mode_status mode_status = MODE_OK; + int ret; + + /* We don't support double-clocked and Interlaced modes */ + if (mode->flags & DRM_MODE_FLAG_DBLCLK || + mode->flags & DRM_MODE_FLAG_INTERLACE) + return MODE_BAD; + + /* MAX support pixel clock rate 594MHz */ + if (mode->clock > 594000) + return MODE_CLOCK_HIGH; + + /* 4096x2160 is not supported */ + if (mode->hdisplay > 3840 || mode->vdisplay > 2160) + return MODE_BAD_HVALUE; + + mhdp->valid_mode = mode; + ret = cdns_mhdp_plat_call(mhdp, phy_video_valid); + if (ret == false) + return MODE_CLOCK_RANGE; + + return mode_status; +} + +static void cdns_hdmi_bridge_mode_set(struct drm_bridge *bridge, + const struct drm_display_mode *orig_mode, + const struct drm_display_mode *mode) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + struct video_info *video = &mhdp->video_info; + + video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC); + video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC); + + printk(KERN_ALERT "cdns-hdmi-core: Mode: %dx%dp%d\n", mode->hdisplay, mode->vdisplay, mode->clock); + memcpy(&mhdp->mode, mode, sizeof(struct drm_display_mode)); + + mutex_lock(&mhdp->lock); + cdns_hdmi_mode_set(mhdp); + mutex_unlock(&mhdp->lock); + /* reset force mode set flag */ + mhdp->force_mode_set = false; +} + +bool cdns_hdmi_bridge_mode_fixup(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct cdns_mhdp_device *mhdp = bridge->driver_private; + struct drm_display_info *di = &mhdp->connector.base.display_info; + struct video_info *video = &mhdp->video_info; + int vic = drm_match_cea_mode(mode); + + video->color_depth = 8; + video->color_fmt = PXL_RGB; + + /* for all other platforms, other than imx8mq */ + if (strncmp("imx8mq-hdmi", mhdp->plat_data->plat_name, 11)) { + if (di->bpc == 10 || di->bpc == 6) + video->color_depth = di->bpc; + + return true; + } + + /* imx8mq */ + if (vic == 97 || vic == 96) { + if (di->hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36) + video->color_depth = 12; + else if (di->hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30) + video->color_depth = 10; + + if (drm_mode_is_420_only(di, mode) || + (drm_mode_is_420_also(di, mode) && + video->color_depth > 8)) { + video->color_fmt = YCBCR_4_2_0; + + // FIXME + //adjusted_mode->private_flags = 1; + return true; + } + + video->color_depth = 8; + return true; + } + + /* Any defined maximum tmds clock limit we must not exceed*/ + if ((di->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_36) && + (mode->clock * 3 / 2 <= di->max_tmds_clock)) + video->color_depth = 12; + else if ((di->edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30) && + (mode->clock * 5 / 4 <= di->max_tmds_clock)) + video->color_depth = 10; + + /* 10-bit color depth for the following modes is not supported */ + if ((vic == 95 || vic == 94 || vic == 93) && video->color_depth == 10) + video->color_depth = 8; + + return true; +} + +static const struct drm_bridge_funcs cdns_hdmi_bridge_funcs = { + .attach = cdns_hdmi_bridge_attach, + .mode_set = cdns_hdmi_bridge_mode_set, + .mode_valid = cdns_hdmi_bridge_mode_valid, + .mode_fixup = cdns_hdmi_bridge_mode_fixup, +}; + +static void hotplug_work_func(struct work_struct *work) +{ + struct cdns_mhdp_device *mhdp = container_of(work, + struct cdns_mhdp_device, hotplug_work.work); + struct drm_connector *connector = &mhdp->connector.base; + + drm_helper_hpd_irq_event(connector->dev); + + if (connector->status == connector_status_connected) { + printk(KERN_ALERT "cdns-hdmi-core: HDMI Cable Plug In\n"); + enable_irq(mhdp->irq[IRQ_OUT]); + } else if (connector->status == connector_status_disconnected) { + /* Cable Disconnedted */ + printk(KERN_ALERT "cdns-hdmi-core: HDMI Cable Plug Out\n"); + /* force mode set for cable replugin to recovery HDMI2.0 video modes */ + mhdp->force_mode_set = true; + enable_irq(mhdp->irq[IRQ_IN]); + } +} + +static irqreturn_t cdns_hdmi_irq_thread(int irq, void *data) +{ + struct cdns_mhdp_device *mhdp = data; + + disable_irq_nosync(irq); + + mod_delayed_work(system_wq, &mhdp->hotplug_work, + msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS)); + + return IRQ_HANDLED; +} + +static void cdns_hdmi_parse_dt(struct cdns_mhdp_device *mhdp) +{ + struct device_node *of_node = mhdp->dev->of_node; + int ret; + + ret = of_property_read_u32(of_node, "lane-mapping", &mhdp->lane_mapping); + if (ret) { + mhdp->lane_mapping = 0xc6; + dev_warn(mhdp->dev, "Failed to get lane_mapping - using default 0xc6\n"); + } + dev_info(mhdp->dev, "lane-mapping 0x%02x\n", mhdp->lane_mapping); +} + +static int __cdns_hdmi_probe(struct platform_device *pdev, + struct cdns_mhdp_device *mhdp) +{ + struct device *dev = &pdev->dev; + struct platform_device_info pdevinfo; + struct resource *iores = NULL; + int ret; + + mutex_init(&mhdp->lock); + mutex_init(&mhdp->iolock); + + INIT_DELAYED_WORK(&mhdp->hotplug_work, hotplug_work_func); + + iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mhdp->regs_base = devm_ioremap(dev, iores->start, resource_size(iores)); + if (IS_ERR(mhdp->regs_base)) { + dev_err(dev, "No regs_base memory\n"); + return -ENOMEM; + } + + /* sec register base */ + iores = platform_get_resource(pdev, IORESOURCE_MEM, 1); + mhdp->regs_sec = devm_ioremap(dev, iores->start, resource_size(iores)); + if (IS_ERR(mhdp->regs_sec)) { + dev_err(dev, "No regs_sec memory\n"); + return -ENOMEM; + } + + mhdp->irq[IRQ_IN] = platform_get_irq_byname(pdev, "plug_in"); + if (mhdp->irq[IRQ_IN] < 0) { + dev_info(dev, "No plug_in irq number\n"); + return -EPROBE_DEFER; + } + + mhdp->irq[IRQ_OUT] = platform_get_irq_byname(pdev, "plug_out"); + if (mhdp->irq[IRQ_OUT] < 0) { + dev_info(dev, "No plug_out irq number\n"); + return -EPROBE_DEFER; + } + + cdns_mhdp_plat_call(mhdp, power_on); + + /* Initialize FW */ + cdns_mhdp_plat_call(mhdp, firmware_init); + + /* HDMI FW alive check */ + ret = cdns_mhdp_check_alive(mhdp); + if (ret == false) { + dev_err(dev, "NO HDMI FW running\n"); + return -ENXIO; + } + + /* Enable Hotplug Detect thread */ + irq_set_status_flags(mhdp->irq[IRQ_IN], IRQ_NOAUTOEN); + ret = devm_request_threaded_irq(dev, mhdp->irq[IRQ_IN], + NULL, cdns_hdmi_irq_thread, + IRQF_ONESHOT, dev_name(dev), + mhdp); + if (ret < 0) { + dev_err(dev, "can't claim irq %d\n", + mhdp->irq[IRQ_IN]); + return -EINVAL; + } + + irq_set_status_flags(mhdp->irq[IRQ_OUT], IRQ_NOAUTOEN); + ret = devm_request_threaded_irq(dev, mhdp->irq[IRQ_OUT], + NULL, cdns_hdmi_irq_thread, + IRQF_ONESHOT, dev_name(dev), + mhdp); + if (ret < 0) { + dev_err(dev, "can't claim irq %d\n", + mhdp->irq[IRQ_OUT]); + return -EINVAL; + } + + cdns_hdmi_parse_dt(mhdp); + + if (cdns_mhdp_read_hpd(mhdp)) + enable_irq(mhdp->irq[IRQ_OUT]); + else + enable_irq(mhdp->irq[IRQ_IN]); + + mhdp->bridge.base.driver_private = mhdp; + mhdp->bridge.base.funcs = &cdns_hdmi_bridge_funcs; +#ifdef CONFIG_OF + mhdp->bridge.base.of_node = dev->of_node; +#endif + + memset(&pdevinfo, 0, sizeof(pdevinfo)); + pdevinfo.parent = dev; + pdevinfo.id = PLATFORM_DEVID_AUTO; + + dev_set_drvdata(dev, mhdp); + + /* register audio driver */ + //cdns_mhdp_register_audio_driver(dev); + + /* register cec driver */ +#ifdef CONFIG_DRM_CDNS_HDMI_CEC + cdns_mhdp_register_cec_driver(dev); +#endif + + return 0; +} + +static void __cdns_hdmi_remove(struct cdns_mhdp_device *mhdp) +{ + /* unregister cec driver */ +#ifdef CONFIG_DRM_CDNS_HDMI_CEC + cdns_mhdp_unregister_cec_driver(mhdp->dev); +#endif + //cdns_mhdp_unregister_audio_driver(mhdp->dev); +} + +/* ----------------------------------------------------------------------------- + * Probe/remove API, used from platforms based on the DRM bridge API. + */ +int cdns_hdmi_probe(struct platform_device *pdev, + struct cdns_mhdp_device *mhdp) +{ + int ret; + + ret = __cdns_hdmi_probe(pdev, mhdp); + if (ret < 0) + return ret; + + drm_bridge_add(&mhdp->bridge.base); + + return 0; +} +EXPORT_SYMBOL_GPL(cdns_hdmi_probe); + +void cdns_hdmi_remove(struct platform_device *pdev) +{ + struct cdns_mhdp_device *mhdp = platform_get_drvdata(pdev); + + drm_bridge_remove(&mhdp->bridge.base); + + __cdns_hdmi_remove(mhdp); +} +EXPORT_SYMBOL_GPL(cdns_hdmi_remove); + +/* ----------------------------------------------------------------------------- + * Bind/unbind API, used from platforms based on the component framework. + */ +int cdns_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder, + struct cdns_mhdp_device *mhdp) +{ + int ret; + + ret = __cdns_hdmi_probe(pdev, mhdp); + if (ret) + return ret; + + ret = drm_bridge_attach(encoder, &mhdp->bridge.base, NULL, 0); // FIXME flags? + if (ret) { + cdns_hdmi_remove(pdev); + printk(KERN_ALERT "cdns-hdmi-core: Failed to initialize bridge with drm\n"); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(cdns_hdmi_bind); + +void cdns_hdmi_unbind(struct device *dev) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + + __cdns_hdmi_remove(mhdp); +} +EXPORT_SYMBOL_GPL(cdns_hdmi_unbind); + +MODULE_AUTHOR("Sandor Yu "); +MODULE_DESCRIPTION("Cadence HDMI transmitter driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cdn-hdmi"); diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-audio.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-audio.c new file mode 100644 index 0000000..5e71848 --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-audio.c @@ -0,0 +1,393 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: Chris Zhong + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include +#include +#include +#include +#include + +#define CDNS_DP_SPDIF_CLK 200000000 + +static u32 TMDS_rate_table[7] = { + 25200, 27000, 54000, 74250, 148500, 297000, 594000, +}; + +static u32 N_table_32k[7] = { +/* 25200/27000/54000/74250/148500/297000/594000 */ + 4096, 4096, 4096, 4096, 4096, 3072, 3072, +}; + +static u32 N_table_44k[7] = { + 6272, 6272, 6272, 6272, 6272, 4704, 9408, +}; + +static u32 N_table_48k[7] = { + 6144, 6144, 6144, 6144, 6144, 5120, 6144, +}; + +static int select_N_index(u32 pclk) +{ + int num = sizeof(TMDS_rate_table)/sizeof(int); + int i = 0; + + for (i = 0; i < num ; i++) + if (pclk == TMDS_rate_table[i]) + break; + + if (i == num) { + printk("cdn-mhdp-audio: pclkc %d is not supported!\n", pclk); + return num-1; + } + + return i; +} + +static void hdmi_audio_avi_set(struct cdns_mhdp_device *mhdp, + u32 channels) +{ + struct hdmi_audio_infoframe frame; + u8 buf[32]; + int ret; + + hdmi_audio_infoframe_init(&frame); + + frame.channels = channels; + frame.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; + + if (channels == 2) + frame.channel_allocation = 0; + else if (channels == 4) + frame.channel_allocation = 0x3; + else if (channels == 8) + frame.channel_allocation = 0x13; + + ret = hdmi_audio_infoframe_pack(&frame, buf + 1, sizeof(buf) - 1); + if (ret < 0) { + printk("cdns-mhdp-audio: failed to pack audio infoframe: %d\n", ret); + return; + } + + buf[0] = 0; + + cdns_mhdp_infoframe_set(mhdp, 1, sizeof(buf), buf, HDMI_INFOFRAME_TYPE_AUDIO); +} + +int cdns_mhdp_audio_stop(struct cdns_mhdp_device *mhdp, + struct audio_info *audio) +{ + int ret; + + if (audio->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { + ret = cdns_mhdp_reg_write(mhdp, AUDIO_PACK_CONTROL, 0); + if (ret) { + dev_err(mhdp->dev, "audio stop failed: %d\n", ret); + return ret; + } + } + + cdns_mhdp_bus_write(0, mhdp, SPDIF_CTRL_ADDR); + + /* clearn the audio config and reset */ + cdns_mhdp_bus_write(0, mhdp, AUDIO_SRC_CNTL); + cdns_mhdp_bus_write(0, mhdp, AUDIO_SRC_CNFG); + cdns_mhdp_bus_write(AUDIO_SW_RST, mhdp, AUDIO_SRC_CNTL); + cdns_mhdp_bus_write(0, mhdp, AUDIO_SRC_CNTL); + + /* reset smpl2pckt component */ + cdns_mhdp_bus_write(0, mhdp, SMPL2PKT_CNTL); + cdns_mhdp_bus_write(AUDIO_SW_RST, mhdp, SMPL2PKT_CNTL); + cdns_mhdp_bus_write(0, mhdp, SMPL2PKT_CNTL); + + /* reset FIFO */ + cdns_mhdp_bus_write(AUDIO_SW_RST, mhdp, FIFO_CNTL); + cdns_mhdp_bus_write(0, mhdp, FIFO_CNTL); + + if (audio->format == AFMT_SPDIF_INT) + clk_disable_unprepare(mhdp->spdif_clk); + + return 0; +} +EXPORT_SYMBOL(cdns_mhdp_audio_stop); + +int cdns_mhdp_audio_mute(struct cdns_mhdp_device *mhdp, bool enable) +{ + struct audio_info *audio = &mhdp->audio_info; + int ret = true; + + if (audio->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { + ret = cdns_mhdp_reg_write_bit(mhdp, DP_VB_ID, 4, 1, enable); + if (ret) + dev_err(mhdp->dev, "audio mute failed: %d\n", ret); + } + + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_audio_mute); + +static void cdns_mhdp_audio_config_i2s(struct cdns_mhdp_device *mhdp, + struct audio_info *audio) +{ + int sub_pckt_num = 1, i2s_port_en_val = 0xf, i; + int idx = select_N_index(mhdp->mode.clock); + u32 val, ncts; + + if (audio->channels == 2) { + if (mhdp->dp.link.num_lanes == 1) + sub_pckt_num = 2; + else + sub_pckt_num = 4; + + i2s_port_en_val = 1; + } else if (audio->channels == 4) { + i2s_port_en_val = 3; + } + + cdns_mhdp_bus_write(0x0, mhdp, SPDIF_CTRL_ADDR); + + cdns_mhdp_bus_write(SYNC_WR_TO_CH_ZERO, mhdp, FIFO_CNTL); + + val = MAX_NUM_CH(audio->channels); + val |= NUM_OF_I2S_PORTS(audio->channels); + val |= AUDIO_TYPE_LPCM; + val |= CFG_SUB_PCKT_NUM(sub_pckt_num); + cdns_mhdp_bus_write(val, mhdp, SMPL2PKT_CNFG); + + if (audio->sample_width == 16) + val = 0; + else if (audio->sample_width == 24) + val = 1 << 9; + else + val = 2 << 9; + + val |= AUDIO_CH_NUM(audio->channels); + val |= I2S_DEC_PORT_EN(i2s_port_en_val); + val |= TRANS_SMPL_WIDTH_32; + cdns_mhdp_bus_write(val, mhdp, AUDIO_SRC_CNFG); + + for (i = 0; i < (audio->channels + 1) / 2; i++) { + if (audio->sample_width == 16) + val = (0x02 << 8) | (0x02 << 20); + else if (audio->sample_width == 24) + val = (0x0b << 8) | (0x0b << 20); + + val |= ((2 * i) << 4) | ((2 * i + 1) << 16); + cdns_mhdp_bus_write(val, mhdp, STTS_BIT_CH(i)); + } + + switch (audio->sample_rate) { + case 32000: + val = SAMPLING_FREQ(3) | + ORIGINAL_SAMP_FREQ(0xc); + ncts = N_table_32k[idx]; + break; + case 44100: + val = SAMPLING_FREQ(0) | + ORIGINAL_SAMP_FREQ(0xf); + ncts = N_table_44k[idx]; + break; + case 48000: + val = SAMPLING_FREQ(2) | + ORIGINAL_SAMP_FREQ(0xd); + ncts = N_table_48k[idx]; + break; + case 88200: + val = SAMPLING_FREQ(8) | + ORIGINAL_SAMP_FREQ(0x7); + ncts = N_table_44k[idx] * 2; + break; + case 96000: + val = SAMPLING_FREQ(0xa) | + ORIGINAL_SAMP_FREQ(5); + ncts = N_table_48k[idx] * 2; + break; + case 176400: + val = SAMPLING_FREQ(0xc) | + ORIGINAL_SAMP_FREQ(3); + ncts = N_table_44k[idx] * 4; + break; + case 192000: + default: + val = SAMPLING_FREQ(0xe) | + ORIGINAL_SAMP_FREQ(1); + ncts = N_table_48k[idx] * 4; + break; + } + val |= 4; + cdns_mhdp_bus_write(val, mhdp, COM_CH_STTS_BITS); + + if (audio->connector_type == DRM_MODE_CONNECTOR_HDMIA) + cdns_mhdp_reg_write(mhdp, CM_I2S_CTRL, ncts | 0x4000000); + + cdns_mhdp_bus_write(SMPL2PKT_EN, mhdp, SMPL2PKT_CNTL); + cdns_mhdp_bus_write(I2S_DEC_START, mhdp, AUDIO_SRC_CNTL); +} + +static void cdns_mhdp_audio_config_spdif(struct cdns_mhdp_device *mhdp) +{ + u32 val; + + cdns_mhdp_bus_write(SYNC_WR_TO_CH_ZERO, mhdp, FIFO_CNTL); + + val = MAX_NUM_CH(2) | AUDIO_TYPE_LPCM | CFG_SUB_PCKT_NUM(4); + cdns_mhdp_bus_write(val, mhdp, SMPL2PKT_CNFG); + cdns_mhdp_bus_write(SMPL2PKT_EN, mhdp, SMPL2PKT_CNTL); + + val = SPDIF_ENABLE | SPDIF_AVG_SEL | SPDIF_JITTER_BYPASS; + cdns_mhdp_bus_write(val, mhdp, SPDIF_CTRL_ADDR); + + clk_prepare_enable(mhdp->spdif_clk); + clk_set_rate(mhdp->spdif_clk, CDNS_DP_SPDIF_CLK); +} + +int cdns_mhdp_audio_config(struct cdns_mhdp_device *mhdp, + struct audio_info *audio) +{ + int ret; + + /* reset the spdif clk before config */ + if (audio->format == AFMT_SPDIF_INT) { + reset_control_assert(mhdp->spdif_rst); + reset_control_deassert(mhdp->spdif_rst); + } + + if (audio->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { + ret = cdns_mhdp_reg_write(mhdp, CM_LANE_CTRL, LANE_REF_CYC); + if (ret) + goto err_audio_config; + + ret = cdns_mhdp_reg_write(mhdp, CM_CTRL, 0); + if (ret) + goto err_audio_config; + } else { + /* HDMI Mode */ + ret = cdns_mhdp_reg_write(mhdp, CM_CTRL, 8); + if (ret) + goto err_audio_config; + } + + if (audio->format == AFMT_I2S) + cdns_mhdp_audio_config_i2s(mhdp, audio); + else if (audio->format == AFMT_SPDIF_INT) + cdns_mhdp_audio_config_spdif(mhdp); + + if (audio->connector_type == DRM_MODE_CONNECTOR_DisplayPort) + ret = cdns_mhdp_reg_write(mhdp, AUDIO_PACK_CONTROL, AUDIO_PACK_EN); + + if (audio->connector_type == DRM_MODE_CONNECTOR_HDMIA) + hdmi_audio_avi_set(mhdp, audio->channels); + +err_audio_config: + if (ret) + dev_err(mhdp->dev, "audio config failed: %d\n", ret); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_audio_config); + +static int audio_hw_params(struct device *dev, void *data, + struct hdmi_codec_daifmt *daifmt, + struct hdmi_codec_params *params) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + struct audio_info audio = { + .sample_width = params->sample_width, + .sample_rate = params->sample_rate, + .channels = params->channels, + .connector_type = mhdp->connector.base.connector_type, + }; + int ret; + + switch (daifmt->fmt) { + case HDMI_I2S: + audio.format = AFMT_I2S; + break; + case HDMI_SPDIF: + audio.format = AFMT_SPDIF_EXT; + break; + default: + dev_err(dev, "Invalid format %d\n", daifmt->fmt); + ret = -EINVAL; + goto out; + } + + ret = cdns_mhdp_audio_config(mhdp, &audio); + if (!ret) + mhdp->audio_info = audio; + +out: + return ret; +} + +static void audio_shutdown(struct device *dev, void *data) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + int ret; + + ret = cdns_mhdp_audio_stop(mhdp, &mhdp->audio_info); + if (!ret) + mhdp->audio_info.format = AFMT_UNUSED; +} + +static int audio_digital_mute(struct device *dev, void *data, + bool enable) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + int ret; + + ret = cdns_mhdp_audio_mute(mhdp, enable); + + return ret; +} + +static int audio_get_eld(struct device *dev, void *data, + u8 *buf, size_t len) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + + memcpy(buf, mhdp->connector.base.eld, + min(sizeof(mhdp->connector.base.eld), len)); + + return 0; +} + +static const struct hdmi_codec_ops audio_codec_ops = { + .hw_params = audio_hw_params, + .audio_shutdown = audio_shutdown, +//.digital_mute = audio_digital_mute, + .get_eld = audio_get_eld, +}; + +int cdns_mhdp_register_audio_driver(struct device *dev) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + struct hdmi_codec_pdata codec_data = { + .i2s = 1, + .spdif = 1, + .ops = &audio_codec_ops, + .max_i2s_channels = 8, + }; + + mhdp->audio_pdev = platform_device_register_data( + dev, HDMI_CODEC_DRV_NAME, 1, + &codec_data, sizeof(codec_data)); + + return PTR_ERR_OR_ZERO(mhdp->audio_pdev); +} + +void cdns_mhdp_unregister_audio_driver(struct device *dev) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + + platform_device_unregister(mhdp->audio_pdev); +} diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c new file mode 100644 index 0000000..af85064 --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-cec.c @@ -0,0 +1,341 @@ +/* + * Copyright 2019 NXP + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include +#include +#include +#include +#include + +#define CEC_NAME "cdns-mhdp-cec" + +#define REG_ADDR_OFF 4 + +/* regsiter define */ +#define TX_MSG_HEADER 0x33800 +#define TX_MSG_LENGTH 0x33840 +#define TX_MSG_CMD 0x33844 +#define RX_MSG_CMD 0x33850 +#define RX_CLEAR_BUF 0x33854 +#define LOGICAL_ADDRESS_LA0 0x33858 + +#define CLK_DIV_MSB 0x3386c +#define CLK_DIV_LSB 0x33870 +#define RX_MSG_DATA1 0x33900 +#define RX_MSG_LENGTH 0x33940 +#define RX_MSG_STATUS 0x33944 +#define NUM_OF_MSG_RX_BUF 0x33948 +#define TX_MSG_STATUS 0x3394c +#define DB_L_TIMER 0x33980 + +/** + * CEC Transceiver operation. + */ +enum { + CEC_TX_STOP, + CEC_TX_TRANSMIT, + CEC_TX_ABORT, + CEC_TX_ABORT_AND_TRANSMIT +}; + +/** + * CEC Transceiver status. + */ +enum { + CEC_STS_IDLE, + CEC_STS_BUSY, + CEC_STS_SUCCESS, + CEC_STS_ERROR +}; + +/** + * CEC Receiver operation. + */ +enum { + CEC_RX_STOP, + CEC_RX_READ, + CEC_RX_DISABLE, + CEC_RX_ABORT_AND_CLR_FIFO +}; +/** + * Maximum number of Messages in the RX Buffers. + */ +#define CEC_MAX_RX_MSGS 2 + +static u32 mhdp_cec_read(struct cdns_mhdp_cec *cec, u32 offset) +{ + struct cdns_mhdp_device *mhdp = + container_of(cec, struct cdns_mhdp_device, hdmi.cec); + return cdns_mhdp_bus_read(mhdp, offset); +} + +static void mhdp_cec_write(struct cdns_mhdp_cec *cec, u32 offset, u32 val) +{ + struct cdns_mhdp_device *mhdp = + container_of(cec, struct cdns_mhdp_device, hdmi.cec); + cdns_mhdp_bus_write(val, mhdp, offset); +} + +static void mhdp_cec_clear_rx_buffer(struct cdns_mhdp_cec *cec) +{ + mhdp_cec_write(cec, RX_CLEAR_BUF, 1); + mhdp_cec_write(cec, RX_CLEAR_BUF, 0); +} + +static void mhdp_cec_set_divider(struct cdns_mhdp_cec *cec) +{ + struct cdns_mhdp_device *mhdp = + container_of(cec, struct cdns_mhdp_device, hdmi.cec); + u32 clk_div; + + /* Set clock divider */ + clk_div = cdns_mhdp_get_fw_clk(mhdp) * 10; + + mhdp_cec_write(cec, CLK_DIV_MSB, + (clk_div >> 8) & 0xFF); + mhdp_cec_write(cec, CLK_DIV_LSB, clk_div & 0xFF); +} + +static u32 mhdp_cec_read_message(struct cdns_mhdp_cec *cec) +{ + struct cec_msg *msg = &cec->msg; + int len; + int i; + + mhdp_cec_write(cec, RX_MSG_CMD, CEC_RX_READ); + + len = mhdp_cec_read(cec, RX_MSG_LENGTH); + msg->len = len + 1; + dev_dbg(cec->dev, "RX MSG len =%d\n", len); + + /* Read RX MSG bytes */ + for (i = 0; i < msg->len; ++i) { + msg->msg[i] = (u8) mhdp_cec_read(cec, RX_MSG_DATA1 + (i * REG_ADDR_OFF)); + dev_dbg(cec->dev, "RX MSG[%d]=0x%x\n", i, msg->msg[i]); + } + + mhdp_cec_write(cec, RX_MSG_CMD, CEC_RX_STOP); + + return true; +} + +static u32 mhdp_cec_write_message(struct cdns_mhdp_cec *cec, struct cec_msg *msg) +{ + u8 i; + + mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_STOP); + + if (msg->len > CEC_MAX_MSG_SIZE) { + dev_err(cec->dev, "Invalid MSG size!\n"); + return -EINVAL; + } + + for (i = 0; i < msg->len; ++i) + printk("msg[%d]=0x%x\n",i, msg->msg[i]); + + /* Write Message to register */ + for (i = 0; i < msg->len; ++i) { + mhdp_cec_write(cec, TX_MSG_HEADER + (i * REG_ADDR_OFF), + msg->msg[i]); + } + /* Write Message Length (payload + opcode) */ + mhdp_cec_write(cec, TX_MSG_LENGTH, msg->len - 1); + + mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_TRANSMIT); + + return true; +} + +static int mhdp_cec_set_logical_addr(struct cdns_mhdp_cec *cec, u32 la) +{ + u8 la_reg; + u8 i; + + if (la == CEC_LOG_ADDR_INVALID) + /* invalid all LA address */ + for (i = 0; i < CEC_MAX_LOG_ADDRS; ++i) { + mhdp_cec_write(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF), 0); + return 0; + } + + /* In fact cdns mhdp cec could support max 5 La address */ + for (i = 0; i < CEC_MAX_LOG_ADDRS; ++i) { + la_reg = mhdp_cec_read(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF)); + /* Check LA already used */ + if (la_reg & 0x10) + continue; + + if ((la_reg & 0xF) == la) { + dev_warn(cec->dev, "Warning. LA already in use.\n"); + return 0; + } + + la = (la & 0xF) | (1 << 4); + + mhdp_cec_write(cec, LOGICAL_ADDRESS_LA0 + (i * REG_ADDR_OFF), la); + return 0; + } + + dev_warn(cec->dev, "All LA in use\n"); + + return -ENXIO; +} + +static int mhdp_cec_poll_worker(void *_cec) +{ + struct cdns_mhdp_cec *cec = (struct cdns_mhdp_cec *)_cec; + int num_rx_msgs, i; + int sts; + + set_freezable(); + + for (;;) { + if (kthread_freezable_should_stop(NULL)) + break; + + /* Check TX State */ + sts = mhdp_cec_read(cec, TX_MSG_STATUS); + switch (sts) { + case CEC_STS_SUCCESS: + cec_transmit_done(cec->adap, CEC_TX_STATUS_OK, 0, 0, 0, + 0); + mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_STOP); + break; + case CEC_STS_ERROR: + mhdp_cec_write(cec, TX_MSG_CMD, CEC_TX_STOP); + cec_transmit_done(cec->adap, + CEC_TX_STATUS_MAX_RETRIES | + CEC_TX_STATUS_NACK, 0, 1, 0, 0); + break; + case CEC_STS_BUSY: + default: + break; + } + + /* Check RX State */ + sts = mhdp_cec_read(cec, RX_MSG_STATUS); + num_rx_msgs = mhdp_cec_read(cec, NUM_OF_MSG_RX_BUF); + switch (sts) { + case CEC_STS_SUCCESS: + if (num_rx_msgs == 0xf) + num_rx_msgs = CEC_MAX_RX_MSGS; + + if (num_rx_msgs > CEC_MAX_RX_MSGS) { + dev_err(cec->dev, "Error rx msg num %d\n", + num_rx_msgs); + mhdp_cec_clear_rx_buffer(cec); + break; + } + + /* Rx FIFO Depth 2 RX MSG */ + for (i = 0; i < num_rx_msgs; i++) { + mhdp_cec_read_message(cec); + cec->msg.rx_status = CEC_RX_STATUS_OK; + cec_received_msg(cec->adap, &cec->msg); + } + break; + default: + break; + } + + if (!kthread_should_stop()) + schedule_timeout_idle(20); + } + + return 0; +} + +static int mhdp_cec_adap_enable(struct cec_adapter *adap, bool enable) +{ + struct cdns_mhdp_cec *cec = cec_get_drvdata(adap); + + if (enable) { + mhdp_cec_write(cec, DB_L_TIMER, 0x10); + mhdp_cec_set_divider(cec); + } else + mhdp_cec_set_divider(cec); + + return 0; +} + +static int mhdp_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) +{ + struct cdns_mhdp_cec *cec = cec_get_drvdata(adap); + + return mhdp_cec_set_logical_addr(cec, addr); +} + +static int mhdp_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, + u32 signal_free_time, struct cec_msg *msg) +{ + struct cdns_mhdp_cec *cec = cec_get_drvdata(adap); + + mhdp_cec_write_message(cec, msg); + + return 0; +} + +static const struct cec_adap_ops cdns_mhdp_cec_adap_ops = { + .adap_enable = mhdp_cec_adap_enable, + .adap_log_addr = mhdp_cec_adap_log_addr, + .adap_transmit = mhdp_cec_adap_transmit, +}; + +int cdns_mhdp_register_cec_driver(struct device *dev) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + struct cdns_mhdp_cec *cec = &mhdp->hdmi.cec; + int ret; + + cec->adap = cec_allocate_adapter(&cdns_mhdp_cec_adap_ops, cec, + CEC_NAME, + CEC_CAP_PHYS_ADDR | CEC_CAP_LOG_ADDRS | + CEC_CAP_TRANSMIT | CEC_CAP_PASSTHROUGH + | CEC_CAP_RC, CEC_MAX_LOG_ADDRS); + ret = PTR_ERR_OR_ZERO(cec->adap); + if (ret) + return ret; + ret = cec_register_adapter(cec->adap, dev); + if (ret) { + cec_delete_adapter(cec->adap); + return ret; + } + + cec->dev = dev; + + cec->cec_worker = kthread_create(mhdp_cec_poll_worker, cec, "cdns-mhdp-cec"); + if (IS_ERR(cec->cec_worker)) + dev_err(cec->dev, "failed create hdp cec thread\n"); + + wake_up_process(cec->cec_worker); + + dev_dbg(dev, "CEC successfuly probed\n"); + return 0; +} + +int cdns_mhdp_unregister_cec_driver(struct device *dev) +{ + struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev); + struct cdns_mhdp_cec *cec = &mhdp->hdmi.cec; + + if (cec->cec_worker) { + kthread_stop(cec->cec_worker); + cec->cec_worker = NULL; + } + cec_unregister_adapter(cec->adap); + return 0; +} + +MODULE_AUTHOR("Sandor.Yu@NXP.com"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("NXP CDNS MHDP HDMI CEC driver"); diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c new file mode 100644 index 0000000..0c61838 --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c @@ -0,0 +1,1059 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: Chris Zhong + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include + +#define CDNS_DP_SPDIF_CLK 200000000 +#define FW_ALIVE_TIMEOUT_US 1000000 +#define MAILBOX_RETRY_US 1000 +#define MAILBOX_TIMEOUT_US 5000000 +#define LINK_TRAINING_RETRY_MS 20 +#define LINK_TRAINING_TIMEOUT_MS 500 + +#define mhdp_readx_poll_timeout(op, addr, offset, val, cond, sleep_us, timeout_us) \ +({ \ + u64 __timeout_us = (timeout_us); \ + unsigned long __sleep_us = (sleep_us); \ + ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ + might_sleep_if((__sleep_us) != 0); \ + for (;;) { \ + (val) = op(addr, offset); \ + if (cond) \ + break; \ + if (__timeout_us && \ + ktime_compare(ktime_get(), __timeout) > 0) { \ + (val) = op(addr, offset); \ + break; \ + } \ + if (__sleep_us) \ + usleep_range((__sleep_us >> 2) + 1, __sleep_us); \ + } \ + (cond) ? 0 : -ETIMEDOUT; \ +}) + +/*static inline u32 get_unaligned_be24(const void *p) +{ + const u8 *_p = p; + + return _p[0] << 16 | _p[1] << 8 | _p[2]; +} + +static inline void put_unaligned_be24(u32 val, void *p) +{ + u8 *_p = p; + + _p[0] = val >> 16; + _p[1] = val >> 8; + _p[2] = val; +}*/ + +u32 cdns_mhdp_bus_read(struct cdns_mhdp_device *mhdp, u32 offset) +{ + u32 val; + + mutex_lock(&mhdp->iolock); + + if (mhdp->bus_type == BUS_TYPE_LOW4K_SAPB) { + /* Remap address to low 4K SAPB bus */ + writel(offset >> 12, mhdp->regs_sec + 0xc); + val = readl((offset & 0xfff) + mhdp->regs_base); + } else if (mhdp->bus_type == BUS_TYPE_LOW4K_APB) { + /* Remap address to low 4K memory */ + writel(offset >> 12, mhdp->regs_sec + 8); + val = readl((offset & 0xfff) + mhdp->regs_base); + } else if (mhdp->bus_type == BUS_TYPE_NORMAL_SAPB) + val = readl(mhdp->regs_sec + offset); + else + val = readl(mhdp->regs_base + offset); + + mutex_unlock(&mhdp->iolock); + + return val; +} +EXPORT_SYMBOL(cdns_mhdp_bus_read); + +void cdns_mhdp_bus_write(u32 val, struct cdns_mhdp_device *mhdp, u32 offset) +{ + mutex_lock(&mhdp->iolock); + + if (mhdp->bus_type == BUS_TYPE_LOW4K_SAPB) { + /* Remap address to low 4K SAPB bus */ + writel(offset >> 12, mhdp->regs_sec + 0xc); + writel(val, (offset & 0xfff) + mhdp->regs_base); + } else if (mhdp->bus_type == BUS_TYPE_LOW4K_APB) { + /* Remap address to low 4K memory */ + writel(offset >> 12, mhdp->regs_sec + 8); + writel(val, (offset & 0xfff) + mhdp->regs_base); + } else if (mhdp->bus_type == BUS_TYPE_NORMAL_SAPB) + writel(val, mhdp->regs_sec + offset); + else + writel(val, mhdp->regs_base + offset); + + mutex_unlock(&mhdp->iolock); +} +EXPORT_SYMBOL(cdns_mhdp_bus_write); + +u32 cdns_mhdp_get_fw_clk(struct cdns_mhdp_device *mhdp) +{ + return cdns_mhdp_bus_read(mhdp, SW_CLK_H); +} +EXPORT_SYMBOL(cdns_mhdp_get_fw_clk); + +void cdns_mhdp_set_fw_clk(struct cdns_mhdp_device *mhdp, unsigned long clk) +{ + cdns_mhdp_bus_write(clk / 1000000, mhdp, SW_CLK_H); +} +EXPORT_SYMBOL(cdns_mhdp_set_fw_clk); + +void cdns_mhdp_clock_reset(struct cdns_mhdp_device *mhdp) +{ + u32 val; + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + val = DPTX_FRMR_DATA_CLK_RSTN_EN | + DPTX_FRMR_DATA_CLK_EN | + DPTX_PHY_DATA_RSTN_EN | + DPTX_PHY_DATA_CLK_EN | + DPTX_PHY_CHAR_RSTN_EN | + DPTX_PHY_CHAR_CLK_EN | + SOURCE_AUX_SYS_CLK_RSTN_EN | + SOURCE_AUX_SYS_CLK_EN | + DPTX_SYS_CLK_RSTN_EN | + DPTX_SYS_CLK_EN | + CFG_DPTX_VIF_CLK_RSTN_EN | + CFG_DPTX_VIF_CLK_EN; + cdns_mhdp_bus_write(val, mhdp, SOURCE_DPTX_CAR); + + val = SOURCE_PHY_RSTN_EN | SOURCE_PHY_CLK_EN; + cdns_mhdp_bus_write(val, mhdp, SOURCE_PHY_CAR); + + val = SOURCE_PKT_SYS_RSTN_EN | + SOURCE_PKT_SYS_CLK_EN | + SOURCE_PKT_DATA_RSTN_EN | + SOURCE_PKT_DATA_CLK_EN; + cdns_mhdp_bus_write(val, mhdp, SOURCE_PKT_CAR); + + val = SPDIF_CDR_CLK_RSTN_EN | + SPDIF_CDR_CLK_EN | + SOURCE_AIF_SYS_RSTN_EN | + SOURCE_AIF_SYS_CLK_EN | + SOURCE_AIF_CLK_RSTN_EN | + SOURCE_AIF_CLK_EN; + cdns_mhdp_bus_write(val, mhdp, SOURCE_AIF_CAR); + + val = SOURCE_CIPHER_SYSTEM_CLK_RSTN_EN | + SOURCE_CIPHER_SYS_CLK_EN | + SOURCE_CIPHER_CHAR_CLK_RSTN_EN | + SOURCE_CIPHER_CHAR_CLK_EN; + cdns_mhdp_bus_write(val, mhdp, SOURCE_CIPHER_CAR); + + val = SOURCE_CRYPTO_SYS_CLK_RSTN_EN | + SOURCE_CRYPTO_SYS_CLK_EN; + cdns_mhdp_bus_write(val, mhdp, SOURCE_CRYPTO_CAR); + + /* enable Mailbox and PIF interrupt */ + cdns_mhdp_bus_write(0, mhdp, APB_INT_MASK); +} +EXPORT_SYMBOL(cdns_mhdp_clock_reset); + +int cdns_mhdp_mailbox_read(struct cdns_mhdp_device *mhdp) +{ + int val, ret; + + ret = mhdp_readx_poll_timeout(cdns_mhdp_bus_read, mhdp, MAILBOX_EMPTY_ADDR, + val, !val, MAILBOX_RETRY_US, + MAILBOX_TIMEOUT_US); + if (ret < 0) + return ret; + + return cdns_mhdp_bus_read(mhdp, MAILBOX0_RD_DATA) & 0xff; +} +EXPORT_SYMBOL(cdns_mhdp_mailbox_read); + +static int cdp_dp_mailbox_write(struct cdns_mhdp_device *mhdp, u8 val) +{ + int ret, full; + + ret = mhdp_readx_poll_timeout(cdns_mhdp_bus_read, mhdp, MAILBOX_FULL_ADDR, + full, !full, MAILBOX_RETRY_US, + MAILBOX_TIMEOUT_US); + if (ret < 0) + return ret; + + cdns_mhdp_bus_write(val, mhdp, MAILBOX0_WR_DATA); + + return 0; +} + +int cdns_mhdp_mailbox_validate_receive(struct cdns_mhdp_device *mhdp, + u8 module_id, u8 opcode, + u16 req_size) +{ + u32 mbox_size, i; + u8 header[4]; + int ret; + + /* read the header of the message */ + for (i = 0; i < 4; i++) { + ret = cdns_mhdp_mailbox_read(mhdp); + if (ret < 0) + return ret; + + header[i] = ret; + } + + mbox_size = get_unaligned_be16(header + 2); + + if (opcode != header[0] || module_id != header[1] || + req_size != mbox_size) { + /* + * If the message in mailbox is not what we want, we need to + * clear the mailbox by reading its contents. + */ + for (i = 0; i < mbox_size; i++) + if (cdns_mhdp_mailbox_read(mhdp) < 0) + break; + + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL(cdns_mhdp_mailbox_validate_receive); + +int cdns_mhdp_mailbox_read_receive(struct cdns_mhdp_device *mhdp, + u8 *buff, u16 buff_size) +{ + u32 i; + int ret; + + for (i = 0; i < buff_size; i++) { + ret = cdns_mhdp_mailbox_read(mhdp); + if (ret < 0) + return ret; + + buff[i] = ret; + } + + return 0; +} +EXPORT_SYMBOL(cdns_mhdp_mailbox_read_receive); + +int cdns_mhdp_mailbox_send(struct cdns_mhdp_device *mhdp, u8 module_id, + u8 opcode, u16 size, u8 *message) +{ + u8 header[4]; + int ret, i; + + header[0] = opcode; + header[1] = module_id; + put_unaligned_be16(size, header + 2); + + for (i = 0; i < 4; i++) { + ret = cdp_dp_mailbox_write(mhdp, header[i]); + if (ret) + return ret; + } + + for (i = 0; i < size; i++) { + ret = cdp_dp_mailbox_write(mhdp, message[i]); + if (ret) + return ret; + } + + return 0; +} +EXPORT_SYMBOL(cdns_mhdp_mailbox_send); + +int cdns_mhdp_reg_read(struct cdns_mhdp_device *mhdp, u32 addr) +{ + u8 msg[4], resp[8]; + u32 val; + int ret; + + if (addr == 0) { + ret = -EINVAL; + goto err_reg_read; + } + + put_unaligned_be32(addr, msg); + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_GENERAL, + GENERAL_READ_REGISTER, + sizeof(msg), msg); + if (ret) + goto err_reg_read; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_GENERAL, + GENERAL_READ_REGISTER, + sizeof(resp)); + if (ret) + goto err_reg_read; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, resp, sizeof(resp)); + if (ret) + goto err_reg_read; + + /* Returned address value should be the same as requested */ + if (memcmp(msg, resp, sizeof(msg))) { + ret = -EINVAL; + goto err_reg_read; + } + + val = get_unaligned_be32(resp + 4); + + return val; +err_reg_read: + DRM_DEV_ERROR(mhdp->dev, "Failed to read register.\n"); + + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_reg_read); + +int cdns_mhdp_reg_write(struct cdns_mhdp_device *mhdp, u32 addr, u32 val) +{ + u8 msg[8]; + + put_unaligned_be32(addr, msg); + put_unaligned_be32(val, msg + 4); + + return cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_GENERAL, + GENERAL_WRITE_REGISTER, sizeof(msg), msg); +} +EXPORT_SYMBOL(cdns_mhdp_reg_write); + +int cdns_mhdp_reg_write_bit(struct cdns_mhdp_device *mhdp, u16 addr, + u8 start_bit, u8 bits_no, u32 val) +{ + u8 field[8]; + + put_unaligned_be16(addr, field); + field[2] = start_bit; + field[3] = bits_no; + put_unaligned_be32(val, field + 4); + + return cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_WRITE_FIELD, sizeof(field), field); +} +EXPORT_SYMBOL(cdns_mhdp_reg_write_bit); + +int cdns_mhdp_dpcd_read(struct cdns_mhdp_device *mhdp, + u32 addr, u8 *data, u16 len) +{ + u8 msg[5], reg[5]; + int ret; + + put_unaligned_be16(len, msg); + put_unaligned_be24(addr, msg + 2); + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_READ_DPCD, sizeof(msg), msg); + if (ret) + goto err_dpcd_read; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_DP_TX, + DPTX_READ_DPCD, + sizeof(reg) + len); + if (ret) + goto err_dpcd_read; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, reg, sizeof(reg)); + if (ret) + goto err_dpcd_read; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, data, len); + +err_dpcd_read: + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_dpcd_read); + +int cdns_mhdp_dpcd_write(struct cdns_mhdp_device *mhdp, u32 addr, u8 value) +{ + u8 msg[6], reg[5]; + int ret; + + put_unaligned_be16(1, msg); + put_unaligned_be24(addr, msg + 2); + msg[5] = value; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_WRITE_DPCD, sizeof(msg), msg); + if (ret) + goto err_dpcd_write; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_DP_TX, + DPTX_WRITE_DPCD, sizeof(reg)); + if (ret) + goto err_dpcd_write; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, reg, sizeof(reg)); + if (ret) + goto err_dpcd_write; + + if (addr != get_unaligned_be24(reg + 2)) + ret = -EINVAL; + +err_dpcd_write: + if (ret) + DRM_DEV_ERROR(mhdp->dev, "dpcd write failed: %d\n", ret); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_dpcd_write); + +int cdns_mhdp_load_firmware(struct cdns_mhdp_device *mhdp, const u32 *i_mem, + u32 i_size, const u32 *d_mem, u32 d_size) +{ + u32 reg; + int i, ret; + + /* reset ucpu before load firmware*/ + cdns_mhdp_bus_write(APB_IRAM_PATH | APB_DRAM_PATH | APB_XT_RESET, + mhdp, APB_CTRL); + + for (i = 0; i < i_size; i += 4) + cdns_mhdp_bus_write(*i_mem++, mhdp, ADDR_IMEM + i); + + for (i = 0; i < d_size; i += 4) + cdns_mhdp_bus_write(*d_mem++, mhdp, ADDR_DMEM + i); + + /* un-reset ucpu */ + cdns_mhdp_bus_write(0, mhdp, APB_CTRL); + + /* check the keep alive register to make sure fw working */ + ret = mhdp_readx_poll_timeout(cdns_mhdp_bus_read, mhdp, KEEP_ALIVE, + reg, reg, 2000, FW_ALIVE_TIMEOUT_US); + if (ret < 0) { + DRM_DEV_ERROR(mhdp->dev, "failed to loaded the FW reg = %x\n", + reg); + return -EINVAL; + } + + reg = cdns_mhdp_bus_read(mhdp, VER_L) & 0xff; + mhdp->fw_version = reg; + reg = cdns_mhdp_bus_read(mhdp, VER_H) & 0xff; + mhdp->fw_version |= reg << 8; + reg = cdns_mhdp_bus_read(mhdp, VER_LIB_L_ADDR) & 0xff; + mhdp->fw_version |= reg << 16; + reg = cdns_mhdp_bus_read(mhdp, VER_LIB_H_ADDR) & 0xff; + mhdp->fw_version |= reg << 24; + + DRM_DEV_DEBUG(mhdp->dev, "firmware version: %x\n", mhdp->fw_version); + + return 0; +} +EXPORT_SYMBOL(cdns_mhdp_load_firmware); + +int cdns_mhdp_set_firmware_active(struct cdns_mhdp_device *mhdp, bool enable) +{ + u8 msg[5]; + int ret, i; + + msg[0] = GENERAL_MAIN_CONTROL; + msg[1] = MB_MODULE_ID_GENERAL; + msg[2] = 0; + msg[3] = 1; + msg[4] = enable ? FW_ACTIVE : FW_STANDBY; + + for (i = 0; i < sizeof(msg); i++) { + ret = cdp_dp_mailbox_write(mhdp, msg[i]); + if (ret) + goto err_set_firmware_active; + } + + /* read the firmware state */ + for (i = 0; i < sizeof(msg); i++) { + ret = cdns_mhdp_mailbox_read(mhdp); + if (ret < 0) + goto err_set_firmware_active; + + msg[i] = ret; + } + + ret = 0; + +err_set_firmware_active: + if (ret < 0) + DRM_DEV_ERROR(mhdp->dev, "set firmware active failed\n"); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_set_firmware_active); + +int cdns_mhdp_set_host_cap(struct cdns_mhdp_device *mhdp, bool flip) +{ + u8 msg[8]; + int ret; + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + msg[0] = drm_dp_link_rate_to_bw_code(mhdp->dp.link.rate); + msg[1] = mhdp->dp.link.num_lanes | SCRAMBLER_EN; + msg[2] = VOLTAGE_LEVEL_2; + msg[3] = PRE_EMPHASIS_LEVEL_3; + msg[4] = PTS1 | PTS2 | PTS3 | PTS4; + msg[5] = FAST_LT_NOT_SUPPORT; + msg[6] = flip ? LANE_MAPPING_FLIPPED : LANE_MAPPING_NORMAL; + msg[7] = ENHANCED; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_SET_HOST_CAPABILITIES, + sizeof(msg), msg); + if (ret) + goto err_set_host_cap; + +/* TODO Sandor */ +// ret = cdns_mhdp_reg_write(mhdp, DP_AUX_SWAP_INVERSION_CONTROL, +// AUX_HOST_INVERT); + +err_set_host_cap: + if (ret) + DRM_DEV_ERROR(mhdp->dev, "set host cap failed: %d\n", ret); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_set_host_cap); + +int cdns_mhdp_event_config(struct cdns_mhdp_device *mhdp) +{ + u8 msg[5]; + int ret; + + memset(msg, 0, sizeof(msg)); + + msg[0] = MHDP_EVENT_ENABLE_HPD | MHDP_EVENT_ENABLE_TRAINING; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_ENABLE_EVENT, sizeof(msg), msg); + if (ret) + DRM_DEV_ERROR(mhdp->dev, "set event config failed: %d\n", ret); + + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_event_config); + +u32 cdns_mhdp_get_event(struct cdns_mhdp_device *mhdp) +{ + return cdns_mhdp_bus_read(mhdp, SW_EVENTS0); +} +EXPORT_SYMBOL(cdns_mhdp_get_event); + +int cdns_mhdp_get_hpd_status(struct cdns_mhdp_device *mhdp) +{ + u8 status; + int ret; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_HPD_STATE, 0, NULL); + if (ret) + goto err_get_hpd; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_DP_TX, + DPTX_HPD_STATE, + sizeof(status)); + if (ret) + goto err_get_hpd; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, &status, sizeof(status)); + if (ret) + goto err_get_hpd; + + return status; + +err_get_hpd: + DRM_DEV_ERROR(mhdp->dev, "get hpd status failed: %d\n", ret); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_get_hpd_status); + +int cdns_mhdp_get_edid_block(void *data, u8 *edid, + unsigned int block, size_t length) +{ + struct cdns_mhdp_device *mhdp = data; + u8 msg[2], reg[2], i; + int ret; + + for (i = 0; i < 4; i++) { + msg[0] = block / 2; + msg[1] = block % 2; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_GET_EDID, sizeof(msg), msg); + if (ret) + continue; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, + MB_MODULE_ID_DP_TX, + DPTX_GET_EDID, + sizeof(reg) + length); + if (ret) + continue; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, reg, sizeof(reg)); + if (ret) + continue; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, edid, length); + if (ret) + continue; + + if (reg[0] == length && reg[1] == block / 2) + break; + } + + if (ret) + DRM_DEV_ERROR(mhdp->dev, "get block[%d] edid failed: %d\n", + block, ret); + + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_get_edid_block); + +static int cdns_mhdp_training_start(struct cdns_mhdp_device *mhdp) +{ + unsigned long timeout; + u8 msg, event[2]; + int ret; + + msg = LINK_TRAINING_RUN; + + /* start training */ + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_TRAINING_CONTROL, sizeof(msg), &msg); + if (ret) + goto err_training_start; + + timeout = jiffies + msecs_to_jiffies(LINK_TRAINING_TIMEOUT_MS); + while (time_before(jiffies, timeout)) { + msleep(LINK_TRAINING_RETRY_MS); + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_READ_EVENT, 0, NULL); + if (ret) + goto err_training_start; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, + MB_MODULE_ID_DP_TX, + DPTX_READ_EVENT, + sizeof(event)); + if (ret) + goto err_training_start; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, event, + sizeof(event)); + if (ret) + goto err_training_start; + + if (event[1] & EQ_PHASE_FINISHED) + return 0; + } + + ret = -ETIMEDOUT; + +err_training_start: + DRM_DEV_ERROR(mhdp->dev, "training failed: %d\n", ret); + return ret; +} + +static int cdns_mhdp_get_training_status(struct cdns_mhdp_device *mhdp) +{ + u8 status[10]; + int ret; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_READ_LINK_STAT, 0, NULL); + if (ret) + goto err_get_training_status; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_DP_TX, + DPTX_READ_LINK_STAT, + sizeof(status)); + if (ret) + goto err_get_training_status; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, status, sizeof(status)); + if (ret) + goto err_get_training_status; + + mhdp->dp.link.rate = drm_dp_bw_code_to_link_rate(status[0]); + mhdp->dp.link.num_lanes = status[1]; + +err_get_training_status: + if (ret) + DRM_DEV_ERROR(mhdp->dev, "get training status failed: %d\n", + ret); + return ret; +} + +int cdns_mhdp_train_link(struct cdns_mhdp_device *mhdp) +{ + int ret; + + ret = cdns_mhdp_training_start(mhdp); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed to start training %d\n", + ret); + return ret; + } + + ret = cdns_mhdp_get_training_status(mhdp); + if (ret) { + DRM_DEV_ERROR(mhdp->dev, "Failed to get training stat %d\n", + ret); + return ret; + } + + DRM_DEV_DEBUG_KMS(mhdp->dev, "rate:0x%x, lanes:%d\n", mhdp->dp.link.rate, + mhdp->dp.link.num_lanes); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_train_link); + +int cdns_mhdp_set_video_status(struct cdns_mhdp_device *mhdp, int active) +{ + u8 msg; + int ret; + + msg = !!active; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_SET_VIDEO, sizeof(msg), &msg); + if (ret) + DRM_DEV_ERROR(mhdp->dev, "set video status failed: %d\n", ret); + + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_set_video_status); + +static int cdns_mhdp_get_msa_misc(struct video_info *video, + struct drm_display_mode *mode) +{ + u32 msa_misc; + u8 val[2] = {0}; + + switch (video->color_fmt) { + case PXL_RGB: + case Y_ONLY: + val[0] = 0; + break; + /* set YUV default color space conversion to BT601 */ + case YCBCR_4_4_4: + val[0] = 6 + BT_601 * 8; + break; + case YCBCR_4_2_2: + val[0] = 5 + BT_601 * 8; + break; + case YCBCR_4_2_0: + val[0] = 5; + break; + }; + + switch (video->color_depth) { + case 6: + val[1] = 0; + break; + case 8: + val[1] = 1; + break; + case 10: + val[1] = 2; + break; + case 12: + val[1] = 3; + break; + case 16: + val[1] = 4; + break; + }; + + msa_misc = 2 * val[0] + 32 * val[1] + + ((video->color_fmt == Y_ONLY) ? (1 << 14) : 0); + + return msa_misc; +} + +int cdns_mhdp_config_video(struct cdns_mhdp_device *mhdp) +{ + struct video_info *video = &mhdp->video_info; + struct drm_display_mode *mode = &mhdp->mode; + u64 symbol; + u32 val, link_rate, rem; + u8 bit_per_pix, tu_size_reg = TU_SIZE; + int ret; + + bit_per_pix = (video->color_fmt == YCBCR_4_2_2) ? + (video->color_depth * 2) : (video->color_depth * 3); + + link_rate = mhdp->dp.link.rate / 1000; + + ret = cdns_mhdp_reg_write(mhdp, BND_HSYNC2VSYNC, VIF_BYPASS_INTERLACE); + if (ret) + goto err_config_video; + + ret = cdns_mhdp_reg_write(mhdp, HSYNC2VSYNC_POL_CTRL, 0); + if (ret) + goto err_config_video; + + /* + * get a best tu_size and valid symbol: + * 1. chose Lclk freq(162Mhz, 270Mhz, 540Mhz), set TU to 32 + * 2. calculate VS(valid symbol) = TU * Pclk * Bpp / (Lclk * Lanes) + * 3. if VS > *.85 or VS < *.1 or VS < 2 or TU < VS + 4, then set + * TU += 2 and repeat 2nd step. + */ + do { + tu_size_reg += 2; + symbol = tu_size_reg * mode->clock * bit_per_pix; + do_div(symbol, mhdp->dp.link.num_lanes * link_rate * 8); + rem = do_div(symbol, 1000); + if (tu_size_reg > 64) { + ret = -EINVAL; + DRM_DEV_ERROR(mhdp->dev, + "tu error, clk:%d, lanes:%d, rate:%d\n", + mode->clock, mhdp->dp.link.num_lanes, + link_rate); + goto err_config_video; + } + } while ((symbol <= 1) || (tu_size_reg - symbol < 4) || + (rem > 850) || (rem < 100)); + + val = symbol + (tu_size_reg << 8); + val |= TU_CNT_RST_EN; + ret = cdns_mhdp_reg_write(mhdp, DP_FRAMER_TU, val); + if (ret) + goto err_config_video; + + /* set the FIFO Buffer size */ + val = div_u64(mode->clock * (symbol + 1), 1000) + link_rate; + val /= (mhdp->dp.link.num_lanes * link_rate); + val = div_u64(8 * (symbol + 1), bit_per_pix) - val; + val += 2; + ret = cdns_mhdp_reg_write(mhdp, DP_VC_TABLE(15), val); + + switch (video->color_depth) { + case 6: + val = BCS_6; + break; + case 8: + val = BCS_8; + break; + case 10: + val = BCS_10; + break; + case 12: + val = BCS_12; + break; + case 16: + val = BCS_16; + break; + }; + + val += video->color_fmt << 8; + ret = cdns_mhdp_reg_write(mhdp, DP_FRAMER_PXL_REPR, val); + if (ret) + goto err_config_video; + + val = video->h_sync_polarity ? DP_FRAMER_SP_HSP : 0; + val |= video->v_sync_polarity ? DP_FRAMER_SP_VSP : 0; + ret = cdns_mhdp_reg_write(mhdp, DP_FRAMER_SP, val); + if (ret) + goto err_config_video; + + val = (mode->hsync_start - mode->hdisplay) << 16; + val |= mode->htotal - mode->hsync_end; + ret = cdns_mhdp_reg_write(mhdp, DP_FRONT_BACK_PORCH, val); + if (ret) + goto err_config_video; + + val = mode->hdisplay * bit_per_pix / 8; + ret = cdns_mhdp_reg_write(mhdp, DP_BYTE_COUNT, val); + if (ret) + goto err_config_video; + + val = mode->htotal | ((mode->htotal - mode->hsync_start) << 16); + ret = cdns_mhdp_reg_write(mhdp, MSA_HORIZONTAL_0, val); + if (ret) + goto err_config_video; + + val = mode->hsync_end - mode->hsync_start; + val |= (mode->hdisplay << 16) | (video->h_sync_polarity << 15); + ret = cdns_mhdp_reg_write(mhdp, MSA_HORIZONTAL_1, val); + if (ret) + goto err_config_video; + + val = mode->vtotal; + val |= (mode->vtotal - mode->vsync_start) << 16; + ret = cdns_mhdp_reg_write(mhdp, MSA_VERTICAL_0, val); + if (ret) + goto err_config_video; + + val = mode->vsync_end - mode->vsync_start; + val |= (mode->vdisplay << 16) | (video->v_sync_polarity << 15); + ret = cdns_mhdp_reg_write(mhdp, MSA_VERTICAL_1, val); + if (ret) + goto err_config_video; + + val = cdns_mhdp_get_msa_misc(video, mode); + ret = cdns_mhdp_reg_write(mhdp, MSA_MISC, val); + if (ret) + goto err_config_video; + + ret = cdns_mhdp_reg_write(mhdp, STREAM_CONFIG, 1); + if (ret) + goto err_config_video; + + val = mode->hsync_end - mode->hsync_start; + val |= mode->hdisplay << 16; + ret = cdns_mhdp_reg_write(mhdp, DP_HORIZONTAL, val); + if (ret) + goto err_config_video; + + val = mode->vdisplay; + val |= (mode->vtotal - mode->vsync_start) << 16; + ret = cdns_mhdp_reg_write(mhdp, DP_VERTICAL_0, val); + if (ret) + goto err_config_video; + + val = mode->vtotal; + ret = cdns_mhdp_reg_write(mhdp, DP_VERTICAL_1, val); + if (ret) + goto err_config_video; + + ret = cdns_mhdp_reg_write_bit(mhdp, DP_VB_ID, 2, 1, 0); + +err_config_video: + if (ret) + DRM_DEV_ERROR(mhdp->dev, "config video failed: %d\n", ret); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_config_video); + +int cdns_mhdp_adjust_lt(struct cdns_mhdp_device *mhdp, + u8 nlanes, u16 udelay, u8 *lanes_data, u8 *dpcd) +{ + u8 payload[7]; + u8 hdr[5]; /* For DPCD read response header */ + u32 addr; + u8 const nregs = 6; /* Registers 0x202-0x207 */ + int ret; + + if (nlanes != 4 && nlanes != 2 && nlanes != 1) { + DRM_DEV_ERROR(mhdp->dev, "invalid number of lanes: %d\n", + nlanes); + ret = -EINVAL; + goto err_adjust_lt; + } + + payload[0] = nlanes; + put_unaligned_be16(udelay, payload + 1); + memcpy(payload + 3, lanes_data, nlanes); + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_DP_TX, + DPTX_ADJUST_LT, + sizeof(payload), payload); + if (ret) + goto err_adjust_lt; + + /* Yes, read the DPCD read command response */ + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_DP_TX, + DPTX_READ_DPCD, + sizeof(hdr) + nregs); + if (ret) + goto err_adjust_lt; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, hdr, sizeof(hdr)); + if (ret) + goto err_adjust_lt; + + addr = get_unaligned_be24(hdr + 2); + if (addr != DP_LANE0_1_STATUS) + goto err_adjust_lt; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, dpcd, nregs); + +err_adjust_lt: + if (ret) + DRM_DEV_ERROR(mhdp->dev, "Failed to adjust Link Training.\n"); + + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_adjust_lt); + +int cdns_phy_reg_write(struct cdns_mhdp_device *mhdp, u32 addr, u32 val) +{ + return cdns_mhdp_reg_write(mhdp, ADDR_PHY_AFE + (addr << 2), val); +} +EXPORT_SYMBOL(cdns_phy_reg_write); + +u32 cdns_phy_reg_read(struct cdns_mhdp_device *mhdp, u32 addr) +{ + return cdns_mhdp_reg_read(mhdp, ADDR_PHY_AFE + (addr << 2)); +} +EXPORT_SYMBOL(cdns_phy_reg_read); + +int cdns_mhdp_read_hpd(struct cdns_mhdp_device *mhdp) +{ + u8 status; + int ret; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_GENERAL, GENERAL_GET_HPD_STATE, + 0, NULL); + if (ret) + goto err_get_hpd; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_GENERAL, + GENERAL_GET_HPD_STATE, sizeof(status)); + if (ret) + goto err_get_hpd; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, &status, sizeof(status)); + if (ret) + goto err_get_hpd; + + return status; + +err_get_hpd: + DRM_ERROR("read hpd failed: %d\n", ret); + return ret; +} +EXPORT_SYMBOL(cdns_mhdp_read_hpd); + +bool cdns_mhdp_check_alive(struct cdns_mhdp_device *mhdp) +{ + u32 alive, newalive; + u8 retries_left = 50; + + alive = cdns_mhdp_bus_read(mhdp, KEEP_ALIVE); + + while (retries_left--) { + udelay(2); + + newalive = cdns_mhdp_bus_read(mhdp, KEEP_ALIVE); + if (alive == newalive) + continue; + return true; + } + return false; +} +EXPORT_SYMBOL(cdns_mhdp_check_alive); diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c new file mode 100644 index 0000000..39546fe --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-hdmi.c @@ -0,0 +1,357 @@ +/* + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include + +void cdns_mhdp_infoframe_set(struct cdns_mhdp_device *mhdp, + u8 entry_id, u8 packet_len, u8 *packet, u8 packet_type) +{ + u32 *packet32, len32; + u32 val, i; + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + /* invalidate entry */ + val = F_ACTIVE_IDLE_TYPE(1) | F_PKT_ALLOC_ADDRESS(entry_id); + cdns_mhdp_bus_write(val, mhdp, SOURCE_PIF_PKT_ALLOC_REG); + cdns_mhdp_bus_write(F_PKT_ALLOC_WR_EN(1), mhdp, SOURCE_PIF_PKT_ALLOC_WR_EN); + + /* flush fifo 1 */ + cdns_mhdp_bus_write(F_FIFO1_FLUSH(1), mhdp, SOURCE_PIF_FIFO1_FLUSH); + + /* write packet into memory */ + packet32 = (u32 *)packet; + len32 = packet_len / 4; + for (i = 0; i < len32; i++) + cdns_mhdp_bus_write(F_DATA_WR(packet32[i]), mhdp, SOURCE_PIF_DATA_WR); + + /* write entry id */ + cdns_mhdp_bus_write(F_WR_ADDR(entry_id), mhdp, SOURCE_PIF_WR_ADDR); + + /* write request */ + cdns_mhdp_bus_write(F_HOST_WR(1), mhdp, SOURCE_PIF_WR_REQ); + + /* update entry */ + val = F_ACTIVE_IDLE_TYPE(1) | F_TYPE_VALID(1) | + F_PACKET_TYPE(packet_type) | F_PKT_ALLOC_ADDRESS(entry_id); + cdns_mhdp_bus_write(val, mhdp, SOURCE_PIF_PKT_ALLOC_REG); + + cdns_mhdp_bus_write(F_PKT_ALLOC_WR_EN(1), mhdp, SOURCE_PIF_PKT_ALLOC_WR_EN); +} + +int cdns_hdmi_get_edid_block(void *data, u8 *edid, + u32 block, size_t length) +{ + struct cdns_mhdp_device *mhdp = data; + u8 msg[2], reg[5], i; + int ret; + + for (i = 0; i < 4; i++) { + msg[0] = block / 2; + msg[1] = block % 2; + + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_HDMI_TX, HDMI_TX_EDID, + sizeof(msg), msg); + if (ret) + continue; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_HDMI_TX, + HDMI_TX_EDID, sizeof(reg) + length); + if (ret) + continue; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, reg, sizeof(reg)); + if (ret) + continue; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, edid, length); + if (ret) + continue; + + if ((reg[3] << 8 | reg[4]) == length) + break; + } + + if (ret) + printk(KERN_ALERT "cdns-mhdp-hdmi: get block[%d] edid failed: %d\n", block, ret); + //DRM_ERROR("get block[%d] edid failed: %d\n", block, ret); + return ret; +} + +int cdns_hdmi_scdc_read(struct cdns_mhdp_device *mhdp, u8 addr, u8 *data) +{ + u8 msg[4], reg[6]; + int ret; + + msg[0] = 0x54; + msg[1] = addr; + msg[2] = 0; + msg[3] = 1; + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_HDMI_TX, HDMI_TX_READ, + sizeof(msg), msg); + if (ret) + goto err_scdc_read; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_HDMI_TX, + HDMI_TX_READ, sizeof(reg)); + if (ret) + goto err_scdc_read; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, reg, sizeof(reg)); + if (ret) + goto err_scdc_read; + + *data = reg[5]; + +err_scdc_read: + if (ret) + printk(KERN_ALERT "cdns-mhdp-hdmi: scdc read failed: %d\n", ret); + //DRM_ERROR("scdc read failed: %d\n", ret); + return ret; +} + +int cdns_hdmi_scdc_write(struct cdns_mhdp_device *mhdp, u8 addr, u8 value) +{ + u8 msg[5], reg[5]; + int ret; + + msg[0] = 0x54; + msg[1] = addr; + msg[2] = 0; + msg[3] = 1; + msg[4] = value; + ret = cdns_mhdp_mailbox_send(mhdp, MB_MODULE_ID_HDMI_TX, HDMI_TX_WRITE, + sizeof(msg), msg); + if (ret) + goto err_scdc_write; + + ret = cdns_mhdp_mailbox_validate_receive(mhdp, MB_MODULE_ID_HDMI_TX, + HDMI_TX_WRITE, sizeof(reg)); + if (ret) + goto err_scdc_write; + + ret = cdns_mhdp_mailbox_read_receive(mhdp, reg, sizeof(reg)); + if (ret) + goto err_scdc_write; + + if (reg[0] != 0) + ret = -EINVAL; + +err_scdc_write: + if (ret) + printk(KERN_ALERT "cdns-mhdp-hdmi: scdc write failed: %d\n", ret); + //DRM_ERROR("scdc write failed: %d\n", ret); + return ret; +} + +int cdns_hdmi_ctrl_init(struct cdns_mhdp_device *mhdp, + int protocol, + u32 char_rate) +{ + u32 reg0; + u32 reg1; + u32 val; + int ret; + + printk(KERN_ALERT "DEBUG: %s %d proto: %d char_rate: %ul \n",__FUNCTION__,__LINE__,protocol,char_rate); + + /* Set PHY to HDMI data */ + ret = cdns_mhdp_reg_write(mhdp, PHY_DATA_SEL, F_SOURCE_PHY_MHDP_SEL(1)); + if (ret < 0) + return ret; + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + ret = cdns_mhdp_reg_write(mhdp, HDTX_HPD, + F_HPD_VALID_WIDTH(4) | F_HPD_GLITCH_WIDTH(0)); + if (ret < 0) + return ret; + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + /* open CARS */ + ret = cdns_mhdp_reg_write(mhdp, SOURCE_PHY_CAR, 0xF); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, SOURCE_HDTX_CAR, 0xFF); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, SOURCE_PKT_CAR, 0xF); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, SOURCE_AIF_CAR, 0xF); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, SOURCE_CIPHER_CAR, 0xF); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, SOURCE_CRYPTO_CAR, 0xF); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, SOURCE_CEC_CAR, 3); + if (ret < 0) + return ret; + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + reg0 = reg1 = 0x7c1f; + if (protocol == MODE_HDMI_2_0 && char_rate >= 340000) { + reg0 = 0; + reg1 = 0xFFFFF; + } + ret = cdns_mhdp_reg_write(mhdp, HDTX_CLOCK_REG_0, reg0); + if (ret < 0) + return ret; + ret = cdns_mhdp_reg_write(mhdp, HDTX_CLOCK_REG_1, reg1); + if (ret < 0) + return ret; + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + /* set hdmi mode and preemble mode data enable */ + val = F_HDMI_MODE(protocol) | F_HDMI2_PREAMBLE_EN(1) | F_DATA_EN(1) | + F_HDMI2_CTRL_IL_MODE(1) | F_BCH_EN(1) | F_PIC_3D(0XF); + ret = cdns_mhdp_reg_write(mhdp, HDTX_CONTROLLER, val); + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + return ret; +} + +int cdns_hdmi_mode_config(struct cdns_mhdp_device *mhdp, + struct drm_display_mode *mode, + struct video_info *video_info) +{ + int ret; + u32 val; + u32 vsync_lines = mode->vsync_end - mode->vsync_start; + u32 eof_lines = mode->vsync_start - mode->vdisplay; + u32 sof_lines = mode->vtotal - mode->vsync_end; + u32 hblank = mode->htotal - mode->hdisplay; + u32 hactive = mode->hdisplay; + u32 vblank = mode->vtotal - mode->vdisplay; + u32 vactive = mode->vdisplay; + u32 hfront = mode->hsync_start - mode->hdisplay; + u32 hback = mode->htotal - mode->hsync_end; + u32 vfront = eof_lines; + u32 hsync = hblank - hfront - hback; + u32 vsync = vsync_lines; + u32 vback = sof_lines; + u32 v_h_polarity = ((mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1) + + ((mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : 2); + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + ret = cdns_mhdp_reg_write(mhdp, SCHEDULER_H_SIZE, (hactive << 16) + hblank); + if (ret < 0) + return ret; + + ret = cdns_mhdp_reg_write(mhdp, SCHEDULER_V_SIZE, (vactive << 16) + vblank); + if (ret < 0) + return ret; + + ret = cdns_mhdp_reg_write(mhdp, HDTX_SIGNAL_FRONT_WIDTH, (vfront << 16) + hfront); + if (ret < 0) + return ret; + + ret = cdns_mhdp_reg_write(mhdp, HDTX_SIGNAL_SYNC_WIDTH, (vsync << 16) + hsync); + if (ret < 0) + return ret; + + ret = cdns_mhdp_reg_write(mhdp, HDTX_SIGNAL_BACK_WIDTH, (vback << 16) + hback); + if (ret < 0) + return ret; + + ret = cdns_mhdp_reg_write(mhdp, HSYNC2VSYNC_POL_CTRL, v_h_polarity); + if (ret < 0) + return ret; + + printk(KERN_ALERT "DEBUG: %s %d mode: %d x %d h: %d %d %d v: %d %d %d pol: %d\n",__FUNCTION__,__LINE__,hactive,vactive,hfront,hsync,hback,vfront, + vsync,vback,v_h_polarity); + + /* Reset Data Enable */ + val = cdns_mhdp_reg_read(mhdp, HDTX_CONTROLLER); + val &= ~F_DATA_EN(1); + ret = cdns_mhdp_reg_write(mhdp, HDTX_CONTROLLER, val); + if (ret < 0) + return ret; + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + /* Set bpc */ + val &= ~F_VIF_DATA_WIDTH(3); + switch (video_info->color_depth) { + case 10: + val |= F_VIF_DATA_WIDTH(1); + break; + case 12: + val |= F_VIF_DATA_WIDTH(2); + break; + case 16: + val |= F_VIF_DATA_WIDTH(3); + break; + case 8: + default: + val |= F_VIF_DATA_WIDTH(0); + break; + } + printk(KERN_ALERT "DEBUG: %s %d BPC: %d\n",__FUNCTION__,__LINE__,video_info->color_depth); + + /* select color encoding */ + val &= ~F_HDMI_ENCODING(3); + switch (video_info->color_fmt) { + case YCBCR_4_4_4: + val |= F_HDMI_ENCODING(2); + break; + case YCBCR_4_2_2: + val |= F_HDMI_ENCODING(1); + break; + case YCBCR_4_2_0: + val |= F_HDMI_ENCODING(3); + break; + case PXL_RGB: + default: + val |= F_HDMI_ENCODING(0); + break; + } + printk(KERN_ALERT "DEBUG: %s %d color: %d\n",__FUNCTION__,__LINE__,video_info->color_fmt); + + ret = cdns_mhdp_reg_write(mhdp, HDTX_CONTROLLER, val); + if (ret < 0) + return ret; + + /* set data enable */ + val |= F_DATA_EN(1); + ret = cdns_mhdp_reg_write(mhdp, HDTX_CONTROLLER, val); + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + return ret; +} + +int cdns_hdmi_disable_gcp(struct cdns_mhdp_device *mhdp) +{ + u32 val; + + val = cdns_mhdp_reg_read(mhdp, HDTX_CONTROLLER); + val &= ~F_GCP_EN(1); + + return cdns_mhdp_reg_write(mhdp, HDTX_CONTROLLER, val); +} + +int cdns_hdmi_enable_gcp(struct cdns_mhdp_device *mhdp) +{ + u32 val; + + val = cdns_mhdp_reg_read(mhdp, HDTX_CONTROLLER); + val |= F_GCP_EN(1); + + return cdns_mhdp_reg_write(mhdp, HDTX_CONTROLLER, val); +} diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp.h b/drivers/gpu/drm/bridge/cadence/cdns-mhdp.h new file mode 100644 index 0000000..94d2b25 --- /dev/null +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp.h @@ -0,0 +1,209 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Cadence MHDP DP MST bridge driver. + * + * Copyright: 2018 Cadence Design Systems, Inc. + * + * Author: Quentin Schulz + */ + + +#ifndef CDNS_MHDP_H +#define CDNS_MHDP_H + +#include + +#define CDNS_APB_CFG 0x00000 +#define CDNS_APB_CTRL (CDNS_APB_CFG + 0x00) +#define CDNS_MAILBOX_FULL (CDNS_APB_CFG + 0x08) +#define CDNS_MAILBOX_EMPTY (CDNS_APB_CFG + 0x0c) +#define CDNS_MAILBOX_TX_DATA (CDNS_APB_CFG + 0x10) +#define CDNS_MAILBOX_RX_DATA (CDNS_APB_CFG + 0x14) +#define CDNS_KEEP_ALIVE (CDNS_APB_CFG + 0x18) +#define CDNS_KEEP_ALIVE_MASK GENMASK(7, 0) + +#define CDNS_MB_INT_MASK (CDNS_APB_CFG + 0x34) + +#define CDNS_SW_CLK_L (CDNS_APB_CFG + 0x3c) +#define CDNS_SW_CLK_H (CDNS_APB_CFG + 0x40) +#define CDNS_SW_EVENT0 (CDNS_APB_CFG + 0x44) +#define CDNS_DPTX_HPD BIT(0) + +#define CDNS_SW_EVENT1 (CDNS_APB_CFG + 0x48) +#define CDNS_SW_EVENT2 (CDNS_APB_CFG + 0x4c) +#define CDNS_SW_EVENT3 (CDNS_APB_CFG + 0x50) + +#define CDNS_APB_INT_MASK (CDNS_APB_CFG + 0x6C) +#define CDNS_APB_INT_MASK_MAILBOX_INT BIT(0) +#define CDNS_APB_INT_MASK_SW_EVENT_INT BIT(1) + +#define CDNS_DPTX_CAR (CDNS_APB_CFG + 0x904) +#define CDNS_VIF_CLK_EN BIT(0) +#define CDNS_VIF_CLK_RSTN BIT(1) + +#define CDNS_SOURCE_VIDEO_IF(s) (0x00b00 + (s * 0x20)) +#define CDNS_BND_HSYNC2VSYNC(s) (CDNS_SOURCE_VIDEO_IF(s) + \ + 0x00) +#define CDNS_IP_DTCT_WIN GENMASK(11, 0) +#define CDNS_IP_DET_INTERLACE_FORMAT BIT(12) +#define CDNS_IP_BYPASS_V_INTERFACE BIT(13) + +#define CDNS_HSYNC2VSYNC_POL_CTRL(s) (CDNS_SOURCE_VIDEO_IF(s) + \ + 0x10) +#define CDNS_H2V_HSYNC_POL_ACTIVE_LOW BIT(1) +#define CDNS_H2V_VSYNC_POL_ACTIVE_LOW BIT(2) + +#define CDNS_DPTX_PHY_CONFIG 0x02000 +#define CDNS_PHY_TRAINING_EN BIT(0) +#define CDNS_PHY_TRAINING_TYPE(x) (((x) & GENMASK(3, 0)) << 1) +#define CDNS_PHY_SCRAMBLER_BYPASS BIT(5) +#define CDNS_PHY_ENCODER_BYPASS BIT(6) +#define CDNS_PHY_SKEW_BYPASS BIT(7) +#define CDNS_PHY_TRAINING_AUTO BIT(8) +#define CDNS_PHY_LANE0_SKEW(x) (((x) & GENMASK(2, 0)) << 9) +#define CDNS_PHY_LANE1_SKEW(x) (((x) & GENMASK(2, 0)) << 12) +#define CDNS_PHY_LANE2_SKEW(x) (((x) & GENMASK(2, 0)) << 15) +#define CDNS_PHY_LANE3_SKEW(x) (((x) & GENMASK(2, 0)) << 18) +#define CDNS_PHY_COMMON_CONFIG (CDNS_PHY_LANE1_SKEW(1) | \ + CDNS_PHY_LANE2_SKEW(2) | \ + CDNS_PHY_LANE3_SKEW(3)) +#define CDNS_PHY_10BIT_EN BIT(21) + +#define CDNS_DPTX_FRAMER 0x02200 +#define CDNS_DP_FRAMER_GLOBAL_CONFIG (CDNS_DPTX_FRAMER + 0x00) +#define CDNS_DP_NUM_LANES(x) (x - 1) +#define CDNS_DP_MST_EN BIT(2) +#define CDNS_DP_FRAMER_EN BIT(3) +#define CDNS_DP_RATE_GOVERNOR_EN BIT(4) +#define CDNS_DP_NO_VIDEO_MODE BIT(5) +#define CDNS_DP_DISABLE_PHY_RST BIT(6) +#define CDNS_DP_WR_FAILING_EDGE_VSYNC BIT(7) + +#define CDNS_DP_SW_RESET (CDNS_DPTX_FRAMER + 0x04) +#define CDNS_DP_FRAMER_TU (CDNS_DPTX_FRAMER + 0x08) +#define CDNS_DP_FRAMER_TU_SIZE(x) (((x) & GENMASK(6, 0)) << 8) +#define CDNS_DP_FRAMER_TU_VS(x) ((x) & GENMASK(5, 0)) +#define CDNS_DP_FRAMER_TU_CNT_RST_EN BIT(15) + +#define CDNS_DPTX_STREAM(s) (0x03000 + s * 0x80) +#define CDNS_DP_MSA_HORIZONTAL_0(s) (CDNS_DPTX_STREAM(s) + 0x00) +#define CDNS_DP_MSAH0_H_TOTAL(x) (x) +#define CDNS_DP_MSAH0_HSYNC_START(x) ((x) << 16) + +#define CDNS_DP_MSA_HORIZONTAL_1(s) (CDNS_DPTX_STREAM(s) + 0x04) +#define CDNS_DP_MSAH1_HSYNC_WIDTH(x) (x) +#define CDNS_DP_MSAH1_HSYNC_POL_LOW BIT(15) +#define CDNS_DP_MSAH1_HDISP_WIDTH(x) ((x) << 16) + +#define CDNS_DP_MSA_VERTICAL_0(s) (CDNS_DPTX_STREAM(s) + 0x08) +#define CDNS_DP_MSAV0_V_TOTAL(x) (x) +#define CDNS_DP_MSAV0_VSYNC_START(x) ((x) << 16) + +#define CDNS_DP_MSA_VERTICAL_1(s) (CDNS_DPTX_STREAM(s) + 0x0c) +#define CDNS_DP_MSAV1_VSYNC_WIDTH(x) (x) +#define CDNS_DP_MSAV1_VSYNC_POL_LOW BIT(15) +#define CDNS_DP_MSAV1_VDISP_WIDTH(x) ((x) << 16) + +#define CDNS_DP_MSA_MISC(s) (CDNS_DPTX_STREAM(s) + 0x10) +#define CDNS_DP_STREAM_CONFIGs(s) (CDNS_DPTX_STREAM(s) + 0x14) +#define CDNS_DP_STREAM_CONFIG_2(s) (CDNS_DPTX_STREAM(s) + 0x2c) +#define CDNS_DP_SC2_TU_VS_DIFF(x) ((x) << 8) + +#define CDNS_DP_HORIZONTAL(s) (CDNS_DPTX_STREAM(s) + 0x30) +#define CDNS_DP_H_HSYNC_WIDTH(x) (x) +#define CDNS_DP_H_H_TOTAL(x) ((x) << 16) + +#define CDNS_DP_VERTICAL_0(s) (CDNS_DPTX_STREAM(s) + 0x34) +#define CDNS_DP_V0_VHEIGHT(x) (x) +#define CDNS_DP_V0_VSTART(x) ((x) << 16) + +#define CDNS_DP_VERTICAL_1(s) (CDNS_DPTX_STREAM(s) + 0x38) +#define CDNS_DP_V1_VTOTAL(x) (x) +#define CDNS_DP_V1_VTOTAL_EVEN BIT(16) + +#define CDNS_DP_FRAMER_PXL_REPR(s) (CDNS_DPTX_STREAM(s) + 0x4c) +#define CDNS_DP_FRAMER_6_BPC BIT(0) +#define CDNS_DP_FRAMER_8_BPC BIT(1) +#define CDNS_DP_FRAMER_10_BPC BIT(2) +#define CDNS_DP_FRAMER_12_BPC BIT(3) +#define CDNS_DP_FRAMER_16_BPC BIT(4) +#define CDNS_DP_FRAMER_PXL_FORMAT 0x8 +#define CDNS_DP_FRAMER_RGB BIT(0) +#define CDNS_DP_FRAMER_YCBCR444 BIT(1) +#define CDNS_DP_FRAMER_YCBCR422 BIT(2) +#define CDNS_DP_FRAMER_YCBCR420 BIT(3) +#define CDNS_DP_FRAMER_Y_ONLY BIT(4) + +#define CDNS_DP_FRAMER_SP(s) (CDNS_DPTX_STREAM(s) + 0x10) +#define CDNS_DP_FRAMER_VSYNC_POL_LOW BIT(0) +#define CDNS_DP_FRAMER_HSYNC_POL_LOW BIT(1) +#define CDNS_DP_FRAMER_INTERLACE BIT(2) + +#define CDNS_DP_LINE_THRESH(s) (CDNS_DPTX_STREAM(s) + 0x64) +#define CDNS_DP_ACTIVE_LINE_THRESH(x) (x) + +#define CDNS_DP_VB_ID(s) (CDNS_DPTX_STREAM(s) + 0x68) +#define CDNS_DP_VB_ID_INTERLACED BIT(2) +#define CDNS_DP_VB_ID_COMPRESSED BIT(6) + +#define CDNS_DP_FRONT_BACK_PORCH(s) (CDNS_DPTX_STREAM(s) + 0x78) +#define CDNS_DP_BACK_PORCH(x) (x) +#define CDNS_DP_FRONT_PORCH(x) ((x) << 16) + +#define CDNS_DP_BYTE_COUNT(s) (CDNS_DPTX_STREAM(s) + 0x7c) +#define CDNS_DP_BYTE_COUNT_BYTES_IN_CHUNK_SHIFT 16 + +#define CDNS_DP_MST_STREAM_CONFIG(s) (CDNS_DPTX_STREAM(s) + 0x14) +#define CDNS_DP_MST_STRM_CFG_STREAM_EN BIT(0) +#define CDNS_DP_MST_STRM_CFG_NO_VIDEO BIT(1) + +#define CDNS_DP_MST_SLOT_ALLOCATE(s) (CDNS_DPTX_STREAM(s) + 0x44) +#define CDNS_DP_S_ALLOC_START_SLOT(x) (x) +#define CDNS_DP_S_ALLOC_END_SLOT(x) ((x) << 8) + +#define CDNS_DP_RATE_GOVERNING(s) (CDNS_DPTX_STREAM(s) + 0x48) +#define CDNS_DP_RG_TARG_AV_SLOTS_Y(x) (x) +#define CDNS_DP_RG_TARG_AV_SLOTS_X(x) (x << 4) +#define CDNS_DP_RG_ENABLE BIT(10) + +#define CDNS_DP_MTPH_CONTROL 0x2264 +#define CDNS_DP_MTPH_ECF_EN BIT(0) +#define CDNS_DP_MTPH_ACT_EN BIT(1) +#define CDNS_DP_MTPH_LVP_EN BIT(2) + +#define CDNS_DP_MTPH_STATUS 0x226C +#define CDNS_DP_MTPH_ACT_STATUS BIT(0) + + +#define CDNS_DPTX_GLOBAL 0x02300 +#define CDNS_DP_LANE_EN (CDNS_DPTX_GLOBAL + 0x00) +#define CDNS_DP_LANE_EN_LANES(x) GENMASK(x - 1, 0) +#define CDNS_DP_ENHNCD (CDNS_DPTX_GLOBAL + 0x04) + + +#define to_mhdp_connector(x) container_of(x, struct cdns_mhdp_connector, base) +#define to_mhdp_bridge(x) container_of(x, struct cdns_mhdp_bridge, base) +#define mgr_to_mhdp(x) container_of(x, struct cdns_mhdp_device, mst_mgr) + +#define CDNS_MHDP_MAX_STREAMS 4 + +enum pixel_format { + PIXEL_FORMAT_RGB = 1, + PIXEL_FORMAT_YCBCR_444 = 2, + PIXEL_FORMAT_YCBCR_422 = 4, + PIXEL_FORMAT_YCBCR_420 = 8, + PIXEL_FORMAT_Y_ONLY = 16, +}; + + +int cdns_mhdp_mst_init(struct cdns_mhdp_device *mhdp); +void cdns_mhdp_mst_deinit(struct cdns_mhdp_device *mhdp); +bool cdns_mhdp_mst_probe(struct cdns_mhdp_device *mhdp); +enum pixel_format cdns_mhdp_get_pxlfmt(u32 color_formats); +u32 cdns_mhdp_get_bpp(u32 bpc, u32 color_formats); +void cdns_mhdp_configure_video(struct drm_bridge *bridge); +void cdns_mhdp_mst_enable(struct drm_bridge *bridge); +void cdns_mhdp_mst_disable(struct drm_bridge *bridge); +void cdns_mhdp_enable(struct drm_bridge *bridge); + +#endif diff --git a/drivers/gpu/drm/imx/Kconfig b/drivers/gpu/drm/imx/Kconfig index fd5b247..1f31495 100644 --- a/drivers/gpu/drm/imx/Kconfig +++ b/drivers/gpu/drm/imx/Kconfig @@ -40,4 +40,13 @@ config DRM_IMX_HDMI help Choose this if you want to use HDMI on i.MX6. +config DRM_IMX_CDNS_MHDP + tristate "NXP i.MX MX8 DRM HDMI/DP" + select DRM_CDNS_MHDP + select DRM_CDNS_DP + select DRM_CDNS_HDMI + select DRM_CDNS_AUDIO + help + Choose this if you want to use HDMI on i.MX8. + source "drivers/gpu/drm/imx/dcss/Kconfig" diff --git a/drivers/gpu/drm/imx/Makefile b/drivers/gpu/drm/imx/Makefile index b644def..b43e325 100644 --- a/drivers/gpu/drm/imx/Makefile +++ b/drivers/gpu/drm/imx/Makefile @@ -10,3 +10,7 @@ obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o obj-$(CONFIG_DRM_IMX_DCSS) += dcss/ + +cdns_mhdp_imx-objs := cdn-mhdp-imxdrv.o cdn-mhdp-dp-phy.o cdn-mhdp-hdmi-phy.o +obj-$(CONFIG_DRM_IMX_CDNS_MHDP) += cdns_mhdp_imx.o + diff --git a/drivers/gpu/drm/imx/cdn-mhdp-dp-phy.c b/drivers/gpu/drm/imx/cdn-mhdp-dp-phy.c new file mode 100644 index 0000000..ab155d6 --- /dev/null +++ b/drivers/gpu/drm/imx/cdn-mhdp-dp-phy.c @@ -0,0 +1,529 @@ +/* + * Cadence Display Port Interface (DP) PHY driver + * + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include +#include +#include +#include +#include "cdn-mhdp-phy.h" + +enum dp_link_rate { + RATE_1_6 = 162000, + RATE_2_1 = 216000, + RATE_2_4 = 243000, + RATE_2_7 = 270000, + RATE_3_2 = 324000, + RATE_4_3 = 432000, + RATE_5_4 = 540000, + RATE_8_1 = 810000, +}; + +struct phy_pll_reg { + u16 val[7]; + u32 addr; +}; + +static const struct phy_pll_reg phy_pll_27m_cfg[] = { + /* 1.62 2.16 2.43 2.7 3.24 4.32 5.4 register address */ + {{ 0x010E, 0x010E, 0x010E, 0x010E, 0x010E, 0x010E, 0x010E }, CMN_PLL0_VCOCAL_INIT_TMR }, + {{ 0x001B, 0x001B, 0x001B, 0x001B, 0x001B, 0x001B, 0x001B }, CMN_PLL0_VCOCAL_ITER_TMR }, + {{ 0x30B9, 0x3087, 0x3096, 0x30B4, 0x30B9, 0x3087, 0x30B4 }, CMN_PLL0_VCOCAL_START }, + {{ 0x0077, 0x009F, 0x00B3, 0x00C7, 0x0077, 0x009F, 0x00C7 }, CMN_PLL0_INTDIV }, + {{ 0xF9DA, 0xF7CD, 0xF6C7, 0xF5C1, 0xF9DA, 0xF7CD, 0xF5C1 }, CMN_PLL0_FRACDIV }, + {{ 0x001E, 0x0028, 0x002D, 0x0032, 0x001E, 0x0028, 0x0032 }, CMN_PLL0_HIGH_THR }, + {{ 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020 }, CMN_PLL0_DSM_DIAG }, + {{ 0x0000, 0x1000, 0x1000, 0x1000, 0x0000, 0x1000, 0x1000 }, CMN_PLLSM0_USER_DEF_CTRL }, + {{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 }, CMN_DIAG_PLL0_OVRD }, + {{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 }, CMN_DIAG_PLL0_FBH_OVRD }, + {{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 }, CMN_DIAG_PLL0_FBL_OVRD }, + {{ 0x0006, 0x0007, 0x0007, 0x0007, 0x0006, 0x0007, 0x0007 }, CMN_DIAG_PLL0_V2I_TUNE }, + {{ 0x0043, 0x0043, 0x0043, 0x0042, 0x0043, 0x0043, 0x0042 }, CMN_DIAG_PLL0_CP_TUNE }, + {{ 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008 }, CMN_DIAG_PLL0_LF_PROG }, + {{ 0x0100, 0x0001, 0x0001, 0x0001, 0x0100, 0x0001, 0x0001 }, CMN_DIAG_PLL0_PTATIS_TUNE1 }, + {{ 0x0007, 0x0001, 0x0001, 0x0001, 0x0007, 0x0001, 0x0001 }, CMN_DIAG_PLL0_PTATIS_TUNE2 }, + {{ 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020 }, CMN_DIAG_PLL0_TEST_MODE}, + {{ 0x0016, 0x0016, 0x0016, 0x0016, 0x0016, 0x0016, 0x0016 }, CMN_PSM_CLK_CTRL } +}; + +static const struct phy_pll_reg phy_pll_24m_cfg[] = { + /* 1.62 2.16 2.43 2.7 3.24 4.32 5.4 register address */ + {{ 0x00F0, 0x00F0, 0x00F0, 0x00F0, 0x00F0, 0x00F0, 0x00F0 }, CMN_PLL0_VCOCAL_INIT_TMR }, + {{ 0x0018, 0x0018, 0x0018, 0x0018, 0x0018, 0x0018, 0x0018 }, CMN_PLL0_VCOCAL_ITER_TMR }, + {{ 0x3061, 0x3092, 0x30B3, 0x30D0, 0x3061, 0x3092, 0x30D0 }, CMN_PLL0_VCOCAL_START }, + {{ 0x0086, 0x00B3, 0x00CA, 0x00E0, 0x0086, 0x00B3, 0x00E0 }, CMN_PLL0_INTDIV }, + {{ 0xF917, 0xF6C7, 0x75A1, 0xF479, 0xF917, 0xF6C7, 0xF479 }, CMN_PLL0_FRACDIV }, + {{ 0x0022, 0x002D, 0x0033, 0x0038, 0x0022, 0x002D, 0x0038 }, CMN_PLL0_HIGH_THR }, + {{ 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020 }, CMN_PLL0_DSM_DIAG }, + {{ 0x0000, 0x1000, 0x1000, 0x1000, 0x0000, 0x1000, 0x1000 }, CMN_PLLSM0_USER_DEF_CTRL }, + {{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 }, CMN_DIAG_PLL0_OVRD }, + {{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 }, CMN_DIAG_PLL0_FBH_OVRD }, + {{ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 }, CMN_DIAG_PLL0_FBL_OVRD }, + {{ 0x0006, 0x0007, 0x0007, 0x0007, 0x0006, 0x0007, 0x0007 }, CMN_DIAG_PLL0_V2I_TUNE }, + {{ 0x0026, 0x0029, 0x0029, 0x0029, 0x0026, 0x0029, 0x0029 }, CMN_DIAG_PLL0_CP_TUNE }, + {{ 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008 }, CMN_DIAG_PLL0_LF_PROG }, + {{ 0x008C, 0x008C, 0x008C, 0x008C, 0x008C, 0x008C, 0x008C }, CMN_DIAG_PLL0_PTATIS_TUNE1 }, + {{ 0x002E, 0x002E, 0x002E, 0x002E, 0x002E, 0x002E, 0x002E }, CMN_DIAG_PLL0_PTATIS_TUNE2 }, + {{ 0x0022, 0x0022, 0x0022, 0x0022, 0x0022, 0x0022, 0x0022 }, CMN_DIAG_PLL0_TEST_MODE}, + {{ 0x0016, 0x0016, 0x0016, 0x0016, 0x0016, 0x0016, 0x0016 }, CMN_PSM_CLK_CTRL } +}; + +static int link_rate_index(u32 rate) +{ + switch (rate) { + case RATE_1_6: + return 0; + case RATE_2_1: + return 1; + case RATE_2_4: + return 2; + case RATE_2_7: + return 3; + case RATE_3_2: + return 4; + case RATE_4_3: + return 5; + case RATE_5_4: + return 6; + default: + return -1; + } +} + +static void dp_aux_cfg(struct cdns_mhdp_device *mhdp) +{ + /* Power up Aux */ + cdns_phy_reg_write(mhdp, TXDA_CYA_AUXDA_CYA, 1); + + cdns_phy_reg_write(mhdp, TX_DIG_CTRL_REG_2, 36); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x0100); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x0300); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_3, 0x0000); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0x2008); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0x2018); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0xA018); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x030C); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_5, 0x0000); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_4, 0x1001); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0xA098); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0xA198); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x030d); + ndelay(150); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x030f); +} + +/* PMA common configuration for 24MHz */ +static void dp_phy_pma_cmn_cfg_24mhz(struct cdns_mhdp_device *mhdp) +{ + int k; + u32 num_lanes = mhdp->dp.link.num_lanes; + u16 val; + + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val &= 0xFFF7; + val |= 0x0008; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + for (k = 0; k < num_lanes; k++) { + /* Transceiver control and diagnostic registers */ + cdns_phy_reg_write(mhdp, XCVR_DIAG_LANE_FCM_EN_MGN_TMR | (k << 9), 0x0090); + /* Transmitter receiver detect registers */ + cdns_phy_reg_write(mhdp, TX_RCVDET_EN_TMR | (k << 9), 0x0960); + cdns_phy_reg_write(mhdp, TX_RCVDET_ST_TMR | (k << 9), 0x0030); + } +} + +/* Valid for 24 MHz only */ +static void dp_phy_pma_cmn_pll0_24mhz(struct cdns_mhdp_device *mhdp) +{ + u32 num_lanes = mhdp->dp.link.num_lanes; + u32 link_rate = mhdp->dp.link.rate; + u16 val; + int index, i, k; + + /* + * PLL reference clock source select + * for single ended reference clock val |= 0x0030; + * for differential clock val |= 0x0000; + */ + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val = val & 0xFF8F; + val = val | 0x0030; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + /* DP PLL data rate 0/1 clock divider value */ + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val &= 0x00FF; + if (link_rate <= RATE_2_7) + val |= 0x2400; + else + val |= 0x1200; + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + + /* High speed clock 0/1 div */ + val = cdns_phy_reg_read(mhdp, CMN_DIAG_HSCLK_SEL); + val &= 0xFFCC; + if (link_rate <= RATE_2_7) + val |= 0x0011; + cdns_phy_reg_write(mhdp, CMN_DIAG_HSCLK_SEL, val); + + for (k = 0; k < num_lanes; k = k + 1) { + val = cdns_phy_reg_read(mhdp, (XCVR_DIAG_HSCLK_SEL | (k << 9))); + val &= 0xCFFF; + if (link_rate <= RATE_2_7) + val |= 0x1000; + cdns_phy_reg_write(mhdp, (XCVR_DIAG_HSCLK_SEL | (k << 9)), val); + } + + /* DP PHY PLL 24MHz configuration */ + index = link_rate_index(link_rate); + for (i = 0; i < ARRAY_SIZE(phy_pll_24m_cfg); i++) + cdns_phy_reg_write(mhdp, phy_pll_24m_cfg[i].addr, phy_pll_24m_cfg[i].val[index]); + + /* Transceiver control and diagnostic registers */ + for (k = 0; k < num_lanes; k = k + 1) { + val = cdns_phy_reg_read(mhdp, (XCVR_DIAG_PLLDRC_CTRL | (k << 9))); + val &= 0x8FFF; + if (link_rate <= RATE_2_7) + val |= 0x2000; + else + val |= 0x1000; + cdns_phy_reg_write(mhdp, (XCVR_DIAG_PLLDRC_CTRL | (k << 9)), val); + } + + for (k = 0; k < num_lanes; k = k + 1) { + cdns_phy_reg_write(mhdp, (XCVR_PSM_RCTRL | (k << 9)), 0xBEFC); + cdns_phy_reg_write(mhdp, (TX_PSC_A0 | (k << 9)), 0x6799); + cdns_phy_reg_write(mhdp, (TX_PSC_A1 | (k << 9)), 0x6798); + cdns_phy_reg_write(mhdp, (TX_PSC_A2 | (k << 9)), 0x0098); + cdns_phy_reg_write(mhdp, (TX_PSC_A3 | (k << 9)), 0x0098); + } +} + +/* PMA common configuration for 27MHz */ +static void dp_phy_pma_cmn_cfg_27mhz(struct cdns_mhdp_device *mhdp) +{ + u32 num_lanes = mhdp->dp.link.num_lanes; + u16 val; + int k; + + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val &= 0xFFF7; + val |= 0x0008; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + /* Startup state machine registers */ + cdns_phy_reg_write(mhdp, CMN_SSM_BIAS_TMR, 0x0087); + cdns_phy_reg_write(mhdp, CMN_PLLSM0_PLLEN_TMR, 0x001B); + cdns_phy_reg_write(mhdp, CMN_PLLSM0_PLLPRE_TMR, 0x0036); + cdns_phy_reg_write(mhdp, CMN_PLLSM0_PLLVREF_TMR, 0x001B); + cdns_phy_reg_write(mhdp, CMN_PLLSM0_PLLLOCK_TMR, 0x006C); + + /* Current calibration registers */ + cdns_phy_reg_write(mhdp, CMN_ICAL_INIT_TMR, 0x0044); + cdns_phy_reg_write(mhdp, CMN_ICAL_ITER_TMR, 0x0006); + cdns_phy_reg_write(mhdp, CMN_ICAL_ADJ_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_ICAL_ADJ_ITER_TMR, 0x0006); + + /* Resistor calibration registers */ + cdns_phy_reg_write(mhdp, CMN_TXPUCAL_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_TXPUCAL_ITER_TMR, 0x0006); + cdns_phy_reg_write(mhdp, CMN_TXPU_ADJ_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_TXPU_ADJ_ITER_TMR, 0x0006); + cdns_phy_reg_write(mhdp, CMN_TXPDCAL_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_TXPDCAL_ITER_TMR, 0x0006); + cdns_phy_reg_write(mhdp, CMN_TXPD_ADJ_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_TXPD_ADJ_ITER_TMR, 0x0006); + cdns_phy_reg_write(mhdp, CMN_RXCAL_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_RXCAL_ITER_TMR, 0x0006); + cdns_phy_reg_write(mhdp, CMN_RX_ADJ_INIT_TMR, 0x0022); + cdns_phy_reg_write(mhdp, CMN_RX_ADJ_ITER_TMR, 0x0006); + + for (k = 0; k < num_lanes; k = k + 1) { + /* Power state machine registers */ + cdns_phy_reg_write(mhdp, XCVR_PSM_CAL_TMR | (k << 9), 0x016D); + cdns_phy_reg_write(mhdp, XCVR_PSM_A0IN_TMR | (k << 9), 0x016D); + /* Transceiver control and diagnostic registers */ + cdns_phy_reg_write(mhdp, XCVR_DIAG_LANE_FCM_EN_MGN_TMR | (k << 9), 0x00A2); + cdns_phy_reg_write(mhdp, TX_DIAG_BGREF_PREDRV_DELAY | (k << 9), 0x0097); + /* Transmitter receiver detect registers */ + cdns_phy_reg_write(mhdp, TX_RCVDET_EN_TMR | (k << 9), 0x0A8C); + cdns_phy_reg_write(mhdp, TX_RCVDET_ST_TMR | (k << 9), 0x0036); + } +} + +static void dp_phy_pma_cmn_pll0_27mhz(struct cdns_mhdp_device *mhdp) +{ + u32 num_lanes = mhdp->dp.link.num_lanes; + u32 link_rate = mhdp->dp.link.rate; + u16 val; + int index, i, k; + + /* + * PLL reference clock source select + * for single ended reference clock val |= 0x0030; + * for differential clock val |= 0x0000; + */ + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val &= 0xFF8F; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + /* for differential clock on the refclk_p and refclk_m off chip pins: + * CMN_DIAG_ACYA[8]=1'b1 + */ + cdns_phy_reg_write(mhdp, CMN_DIAG_ACYA, 0x0100); + + /* DP PLL data rate 0/1 clock divider value */ + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val &= 0x00FF; + if (link_rate <= RATE_2_7) + val |= 0x2400; + else + val |= 0x1200; + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + + /* High speed clock 0/1 div */ + val = cdns_phy_reg_read(mhdp, CMN_DIAG_HSCLK_SEL); + val &= 0xFFCC; + if (link_rate <= RATE_2_7) + val |= 0x0011; + cdns_phy_reg_write(mhdp, CMN_DIAG_HSCLK_SEL, val); + + for (k = 0; k < num_lanes; k++) { + val = cdns_phy_reg_read(mhdp, (XCVR_DIAG_HSCLK_SEL | (k << 9))); + val = val & 0xCFFF; + if (link_rate <= RATE_2_7) + val |= 0x1000; + cdns_phy_reg_write(mhdp, (XCVR_DIAG_HSCLK_SEL | (k << 9)), val); + } + + /* DP PHY PLL 27MHz configuration */ + index = link_rate_index(link_rate); + for (i = 0; i < ARRAY_SIZE(phy_pll_27m_cfg); i++) + cdns_phy_reg_write(mhdp, phy_pll_27m_cfg[i].addr, phy_pll_27m_cfg[i].val[index]); + + /* Transceiver control and diagnostic registers */ + for (k = 0; k < num_lanes; k++) { + val = cdns_phy_reg_read(mhdp, (XCVR_DIAG_PLLDRC_CTRL | (k << 9))); + val = val & 0x8FFF; + if (link_rate <= RATE_2_7) + val |= 0x2000; + else + val |= 0x1000; + cdns_phy_reg_write(mhdp, (XCVR_DIAG_PLLDRC_CTRL | (k << 9)), val); + } + + for (k = 0; k < num_lanes; k = k + 1) { + /* Power state machine registers */ + cdns_phy_reg_write(mhdp, (XCVR_PSM_RCTRL | (k << 9)), 0xBEFC); + cdns_phy_reg_write(mhdp, (TX_PSC_A0 | (k << 9)), 0x6799); + cdns_phy_reg_write(mhdp, (TX_PSC_A1 | (k << 9)), 0x6798); + cdns_phy_reg_write(mhdp, (TX_PSC_A2 | (k << 9)), 0x0098); + cdns_phy_reg_write(mhdp, (TX_PSC_A3 | (k << 9)), 0x0098); + /* Receiver calibration power state definition register */ + val = cdns_phy_reg_read(mhdp, RX_PSC_CAL | (k << 9)); + val &= 0xFFBB; + cdns_phy_reg_write(mhdp, (RX_PSC_CAL | (k << 9)), val); + val = cdns_phy_reg_read(mhdp, RX_PSC_A0 | (k << 9)); + val &= 0xFFBB; + cdns_phy_reg_write(mhdp, (RX_PSC_A0 | (k << 9)), val); + } +} + +static void dp_phy_power_down(struct cdns_mhdp_device *mhdp) +{ + u16 val; + int i; + + if (!mhdp->power_up) + return; + + /* Place the PHY lanes in the A3 power state. */ + cdns_phy_reg_write(mhdp, PHY_HDP_MODE_CTRL, 0x8); + /* Wait for Power State A3 Ack */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_MODE_CTRL); + if (val & (1 << 7)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait A3 Ack failed\n"); + return; + } + + /* Disable HDP PLL’s data rate and full rate clocks out of PMA. */ + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val &= ~(1 << 2); + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + /* Wait for PLL clock gate ACK */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + if (!(val & (1 << 3))) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait PLL clock gate Ack failed\n"); + return; + } + + /* Disable HDP PLL’s for high speed clocks */ + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val &= ~(1 << 0); + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + /* Wait for PLL disable ACK */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + if (!(val & (1 << 1))) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait PLL disable Ack failed\n"); + return; + } +} + +static int dp_phy_power_up(struct cdns_mhdp_device *mhdp) +{ + u32 val, i; + + /* Enable HDP PLL’s for high speed clocks */ + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val |= (1 << 0); + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + /* Wait for PLL ready ACK */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + if (val & (1 << 1)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait PLL Ack failed\n"); + return -1; + } + + /* Enable HDP PLL’s data rate and full rate clocks out of PMA. */ + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val |= (1 << 2); + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + /* Wait for PLL clock enable ACK */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + if (val & (1 << 3)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait PLL clock enable ACk failed\n"); + return -1; + } + + /* Configure PHY in A2 Mode */ + cdns_phy_reg_write(mhdp, PHY_HDP_MODE_CTRL, 0x0004); + /* Wait for Power State A2 Ack */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_MODE_CTRL); + if (val & (1 << 6)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait A2 Ack failed\n"); + return -1; + } + + /* Configure PHY in A0 mode (PHY must be in the A0 power + * state in order to transmit data) + */ + cdns_phy_reg_write(mhdp, PHY_HDP_MODE_CTRL, 0x0101); + + /* Wait for Power State A0 Ack */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_MODE_CTRL); + if (val & (1 << 4)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait A0 Ack failed\n"); + return -1; + } + + mhdp->power_up = true; + + return 0; +} + +int cdns_dp_phy_set_imx8mq(struct cdns_mhdp_device *mhdp) +{ + int ret; + + /* Disable phy clock if PHY in power up state */ + dp_phy_power_down(mhdp); + + dp_phy_pma_cmn_cfg_27mhz(mhdp); + + dp_phy_pma_cmn_pll0_27mhz(mhdp); + + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_0, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_1, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_2, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_3, 1); + + /* PHY power up */ + ret = dp_phy_power_up(mhdp); + if (ret < 0) + return ret; + + dp_aux_cfg(mhdp); + + return ret; +} + +int cdns_dp_phy_set_imx8qm(struct cdns_mhdp_device *mhdp) +{ + int ret; + + /* Disable phy clock if PHY in power up state */ + dp_phy_power_down(mhdp); + + dp_phy_pma_cmn_cfg_24mhz(mhdp); + + dp_phy_pma_cmn_pll0_24mhz(mhdp); + + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_0, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_1, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_2, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_3, 1); + + /* PHY power up */ + ret = dp_phy_power_up(mhdp); + if (ret < 0) + return ret; + + dp_aux_cfg(mhdp); + + return true; +} diff --git a/drivers/gpu/drm/imx/cdn-mhdp-hdmi-phy.c b/drivers/gpu/drm/imx/cdn-mhdp-hdmi-phy.c new file mode 100644 index 0000000..d7b5034 --- /dev/null +++ b/drivers/gpu/drm/imx/cdn-mhdp-hdmi-phy.c @@ -0,0 +1,777 @@ +/* + * Cadence High-Definition Multimedia Interface (HDMI) driver + * + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include +#include +#include +#include +#include +#include +#include + +#include +#include "cdn-mhdp-phy.h" + +/* HDMI TX clock control settings */ +struct hdmi_ctrl { + u32 pixel_clk_freq_min; + u32 pixel_clk_freq_max; + u32 feedback_factor; + u32 data_range_kbps_min; + u32 data_range_kbps_max; + u32 cmnda_pll0_ip_div; + u32 cmn_ref_clk_dig_div; + u32 ref_clk_divider_scaler; + u32 pll_fb_div_total; + u32 cmnda_pll0_fb_div_low; + u32 cmnda_pll0_fb_div_high; + u32 pixel_div_total; + u32 cmnda_pll0_pxdiv_low; + u32 cmnda_pll0_pxdiv_high; + u32 vco_freq_min; + u32 vco_freq_max; + u32 vco_ring_select; + u32 cmnda_hs_clk_0_sel; + u32 cmnda_hs_clk_1_sel; + u32 hsclk_div_at_xcvr; + u32 hsclk_div_tx_sub_rate; + u32 cmnda_pll0_hs_sym_div_sel; + u32 cmnda_pll0_clk_freq_min; + u32 cmnda_pll0_clk_freq_max; +}; + +/* HDMI TX clock control settings, pixel clock is output */ +static const struct hdmi_ctrl imx8mq_ctrl_table[] = { +/*Minclk Maxclk Fdbak DR_min DR_max ip_d dig DS Totl */ +{ 27000, 27000, 1000, 270000, 270000, 0x03, 0x1, 0x1, 240, 0x0BC, 0x030, 80, 0x026, 0x026, 2160000, 2160000, 0, 2, 2, 2, 4, 0x3, 27000, 27000}, +{ 27000, 27000, 1250, 337500, 337500, 0x03, 0x1, 0x1, 300, 0x0EC, 0x03C, 100, 0x030, 0x030, 2700000, 2700000, 0, 2, 2, 2, 4, 0x3, 33750, 33750}, +{ 27000, 27000, 1500, 405000, 405000, 0x03, 0x1, 0x1, 360, 0x11C, 0x048, 120, 0x03A, 0x03A, 3240000, 3240000, 0, 2, 2, 2, 4, 0x3, 40500, 40500}, +{ 27000, 27000, 2000, 540000, 540000, 0x03, 0x1, 0x1, 240, 0x0BC, 0x030, 80, 0x026, 0x026, 2160000, 2160000, 0, 2, 2, 2, 4, 0x2, 54000, 54000}, +{ 29700, 29700, 1000, 297000, 297000, 0x03, 0x1, 0x1, 264, 0x0d0, 0x034, 80, 0x026, 0x026, 2376000, 2376000, 0, 2, 2, 2, 4, 0x3, 29700, 29700}, + +{ 54000, 54000, 1000, 540000, 540000, 0x03, 0x1, 0x1, 480, 0x17C, 0x060, 80, 0x026, 0x026, 4320000, 4320000, 1, 2, 2, 2, 4, 0x3, 54000, 54000}, +{ 54000, 54000, 1250, 675000, 675000, 0x04, 0x1, 0x1, 400, 0x13C, 0x050, 50, 0x017, 0x017, 2700000, 2700000, 0, 1, 1, 2, 4, 0x2, 67500, 67500}, +{ 54000, 54000, 1500, 810000, 810000, 0x04, 0x1, 0x1, 480, 0x17C, 0x060, 60, 0x01C, 0x01C, 3240000, 3240000, 0, 2, 2, 2, 2, 0x2, 81000, 81000}, +{ 54000, 54000, 2000, 1080000, 1080000, 0x03, 0x1, 0x1, 240, 0x0BC, 0x030, 40, 0x012, 0x012, 2160000, 2160000, 0, 2, 2, 2, 1, 0x1, 108000, 108000}, +{ 74250, 74250, 1000, 742500, 742500, 0x03, 0x1, 0x1, 660, 0x20C, 0x084, 80, 0x026, 0x026, 5940000, 5940000, 1, 2, 2, 2, 4, 0x3, 74250, 74250}, +{ 74250, 74250, 1250, 928125, 928125, 0x04, 0x1, 0x1, 550, 0x1B4, 0x06E, 50, 0x017, 0x017, 3712500, 3712500, 1, 1, 1, 2, 4, 0x2, 92812, 92812}, +{ 74250, 74250, 1500, 1113750, 1113750, 0x04, 0x1, 0x1, 660, 0x20C, 0x084, 60, 0x01C, 0x01C, 4455000, 4455000, 1, 2, 2, 2, 2, 0x2, 111375, 111375}, +{ 74250, 74250, 2000, 1485000, 1485000, 0x03, 0x1, 0x1, 330, 0x104, 0x042, 40, 0x012, 0x012, 2970000, 2970000, 0, 2, 2, 2, 1, 0x1, 148500, 148500}, +{ 99000, 99000, 1000, 990000, 990000, 0x03, 0x1, 0x1, 440, 0x15C, 0x058, 40, 0x012, 0x012, 3960000, 3960000, 1, 2, 2, 2, 2, 0x2, 99000, 99000}, +{ 99000, 99000, 1250, 1237500, 1237500, 0x03, 0x1, 0x1, 275, 0x0D8, 0x037, 25, 0x00B, 0x00A, 2475000, 2475000, 0, 1, 1, 2, 2, 0x1, 123750, 123750}, +{ 99000, 99000, 1500, 1485000, 1485000, 0x03, 0x1, 0x1, 330, 0x104, 0x042, 30, 0x00D, 0x00D, 2970000, 2970000, 0, 2, 2, 2, 1, 0x1, 148500, 148500}, +{ 99000, 99000, 2000, 1980000, 1980000, 0x03, 0x1, 0x1, 440, 0x15C, 0x058, 40, 0x012, 0x012, 3960000, 3960000, 1, 2, 2, 2, 1, 0x1, 198000, 198000}, +{148500, 148500, 1000, 1485000, 1485000, 0x03, 0x1, 0x1, 660, 0x20C, 0x084, 40, 0x012, 0x012, 5940000, 5940000, 1, 2, 2, 2, 2, 0x2, 148500, 148500}, +{148500, 148500, 1250, 1856250, 1856250, 0x04, 0x1, 0x1, 550, 0x1B4, 0x06E, 25, 0x00B, 0x00A, 3712500, 3712500, 1, 1, 1, 2, 2, 0x1, 185625, 185625}, +{148500, 148500, 1500, 2227500, 2227500, 0x03, 0x1, 0x1, 495, 0x188, 0x063, 30, 0x00D, 0x00D, 4455000, 4455000, 1, 1, 1, 2, 2, 0x1, 222750, 222750}, +{148500, 148500, 2000, 2970000, 2970000, 0x03, 0x1, 0x1, 660, 0x20C, 0x084, 40, 0x012, 0x012, 5940000, 5940000, 1, 2, 2, 2, 1, 0x1, 297000, 297000}, +{198000, 198000, 1000, 1980000, 1980000, 0x03, 0x1, 0x1, 220, 0x0AC, 0x02C, 10, 0x003, 0x003, 1980000, 1980000, 0, 1, 1, 2, 1, 0x0, 198000, 198000}, +{198000, 198000, 1250, 2475000, 2475000, 0x03, 0x1, 0x1, 550, 0x1B4, 0x06E, 25, 0x00B, 0x00A, 4950000, 4950000, 1, 1, 1, 2, 2, 0x1, 247500, 247500}, +{198000, 198000, 1500, 2970000, 2970000, 0x03, 0x1, 0x1, 330, 0x104, 0x042, 15, 0x006, 0x005, 2970000, 2970000, 0, 1, 1, 2, 1, 0x0, 297000, 297000}, +{198000, 198000, 2000, 3960000, 3960000, 0x03, 0x1, 0x1, 440, 0x15C, 0x058, 20, 0x008, 0x008, 3960000, 3960000, 1, 1, 1, 2, 1, 0x0, 396000, 396000}, +{297000, 297000, 1000, 2970000, 2970000, 0x03, 0x1, 0x1, 330, 0x104, 0x042, 10, 0x003, 0x003, 2970000, 2970000, 0, 1, 1, 2, 1, 0x0, 297000, 297000}, +{297000, 297000, 1500, 4455000, 4455000, 0x03, 0x1, 0x1, 495, 0x188, 0x063, 15, 0x006, 0x005, 4455000, 4455000, 1, 1, 1, 2, 1, 0x0, 445500, 445500}, +{297000, 297000, 2000, 5940000, 5940000, 0x03, 0x1, 0x1, 660, 0x20C, 0x084, 20, 0x008, 0x008, 5940000, 5940000, 1, 1, 1, 2, 1, 0x0, 594000, 594000}, +{594000, 594000, 1000, 5940000, 5940000, 0x03, 0x1, 0x1, 660, 0x20C, 0x084, 10, 0x003, 0x003, 5940000, 5940000, 1, 1, 1, 2, 1, 0x0, 594000, 594000}, +{594000, 594000, 750, 4455000, 4455000, 0x03, 0x1, 0x1, 495, 0x188, 0x063, 10, 0x003, 0x003, 4455000, 4455000, 1, 1, 1, 2, 1, 0x0, 445500, 445500}, +{594000, 594000, 625, 3712500, 3712500, 0x04, 0x1, 0x1, 550, 0x1B4, 0x06E, 10, 0x003, 0x003, 3712500, 3712500, 1, 1, 1, 2, 1, 0x0, 371250, 371250}, +{594000, 594000, 500, 2970000, 2970000, 0x03, 0x1, 0x1, 660, 0x20C, 0x084, 10, 0x003, 0x003, 5940000, 5940000, 1, 1, 1, 2, 2, 0x1, 297000, 297000}, +}; + +/* HDMI TX clock control settings, pixel clock is input */ +static const struct hdmi_ctrl imx8qm_ctrl_table[] = { +/*pclk_l pclk_h fd DRR_L DRR_H PLLD */ +{ 25000, 42500, 1000, 250000, 425000, 0x05, 0x01, 0x01, 400, 0x182, 0x00A, 0, 0, 0, 2000000, 3400000, 0, 2, 2, 2, 4, 0x03, 25000, 42500}, +{ 42500, 85000, 1000, 425000, 850000, 0x08, 0x03, 0x01, 320, 0x132, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 4, 0x02, 42500, 85000}, +{ 85000, 170000, 1000, 850000, 1700000, 0x11, 0x00, 0x07, 340, 0x146, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 2, 0x01, 85000, 170000}, +{170000, 340000, 1000, 1700000, 3400000, 0x22, 0x01, 0x07, 340, 0x146, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 1, 0x00, 170000, 340000}, +{340000, 600000, 1000, 3400000, 6000000, 0x3C, 0x03, 0x06, 600, 0x24A, 0x00A, 0, 0, 0, 3400000, 6000000, 1, 1, 1, 2, 1, 0x00, 340000, 600000}, +{ 25000, 34000, 1205, 312500, 425000, 0x04, 0x01, 0x01, 400, 0x182, 0x00A, 0, 0, 0, 2500000, 3400000, 0, 2, 2, 2, 4, 0x03, 31250, 42500}, +{ 34000, 68000, 1205, 425000, 850000, 0x06, 0x02, 0x01, 300, 0x11E, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 4, 0x02, 42500, 85000}, +{ 68000, 136000, 1205, 850000, 1700000, 0x0D, 0x02, 0x02, 325, 0x137, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 2, 0x01, 85000, 170000}, +{136000, 272000, 1205, 1700000, 3400000, 0x1A, 0x02, 0x04, 325, 0x137, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 1, 0x00, 170000, 340000}, +{272000, 480000, 1205, 3400000, 6000000, 0x30, 0x03, 0x05, 600, 0x24A, 0x00A, 0, 0, 0, 3400000, 6000000, 1, 1, 1, 2, 1, 0x00, 340000, 600000}, +{ 25000, 28000, 1500, 375000, 420000, 0x03, 0x01, 0x01, 360, 0x15A, 0x00A, 0, 0, 0, 3000000, 3360000, 0, 2, 2, 2, 4, 0x03, 37500, 42000}, +{ 28000, 56000, 1500, 420000, 840000, 0x06, 0x02, 0x01, 360, 0x15A, 0x00A, 0, 0, 0, 1680000, 3360000, 0, 1, 1, 2, 4, 0x02, 42000, 84000}, +{ 56000, 113000, 1500, 840000, 1695000, 0x0B, 0x00, 0x05, 330, 0x13C, 0x00A, 0, 0, 0, 1680000, 3390000, 0, 1, 1, 2, 2, 0x01, 84000, 169500}, +{113000, 226000, 1500, 1695000, 3390000, 0x16, 0x01, 0x05, 330, 0x13C, 0x00A, 0, 0, 0, 1695000, 3390000, 0, 1, 1, 2, 1, 0x00, 169500, 339000}, +{226000, 400000, 1500, 3390000, 6000000, 0x28, 0x03, 0x04, 600, 0x24A, 0x00A, 0, 0, 0, 3390000, 6000000, 1, 1, 1, 2, 1, 0x00, 339000, 600000}, +{ 25000, 42500, 2000, 500000, 850000, 0x05, 0x01, 0x01, 400, 0x182, 0x00A, 0, 0, 0, 2000000, 3400000, 0, 1, 1, 2, 4, 0x02, 50000, 85000}, +{ 42500, 85000, 2000, 850000, 1700000, 0x08, 0x03, 0x01, 320, 0x132, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 2, 0x01, 85000, 170000}, +{ 85000, 170000, 2000, 1700000, 3400000, 0x11, 0x00, 0x07, 340, 0x146, 0x00A, 0, 0, 0, 1700000, 3400000, 0, 1, 1, 2, 1, 0x00, 170000, 340000}, +{170000, 300000, 2000, 3400000, 6000000, 0x22, 0x01, 0x06, 680, 0x29A, 0x00A, 0, 0, 0, 3400000, 6000000, 1, 1, 1, 2, 1, 0x00, 340000, 600000}, +{594000, 594000, 5000, 2970000, 2970000, 0x3C, 0x03, 0x06, 600, 0x24A, 0x00A, 0, 0, 0, 5940000, 5940000, 1, 1, 1, 2, 2, 0x01, 297000, 297000}, +{594000, 594000, 6250, 3712500, 3712500, 0x3C, 0x03, 0x06, 375, 0x169, 0x00A, 0, 0, 0, 3712500, 3712500, 1, 1, 1, 2, 1, 0x00, 371250, 371250}, +{594000, 594000, 7500, 4455000, 4455000, 0x3C, 0x03, 0x06, 450, 0x1B4, 0x00A, 0, 0, 0, 4455000, 4455000, 1, 1, 1, 2, 1, 0x00, 445500, 445500}, +}; + +/* HDMI TX PLL tuning settings */ +struct hdmi_pll_tuning { + u32 vco_freq_bin; + u32 vco_freq_min; + u32 vco_freq_max; + u32 volt_to_current_coarse; + u32 volt_to_current; + u32 ndac_ctrl; + u32 pmos_ctrl; + u32 ptat_ndac_ctrl; + u32 feedback_div_total; + u32 charge_pump_gain; + u32 coarse_code; + u32 v2i_code; + u32 vco_cal_code; +}; + +/* HDMI TX PLL tuning settings, pixel clock is output */ +static const struct hdmi_pll_tuning imx8mq_pll_table[] = { +/* bin VCO_freq min/max coar cod NDAC PMOS PTAT div-T P-Gain Coa V2I CAL */ + { 1, 1980000, 1980000, 0x4, 0x3, 0x0, 0x09, 0x09, 220, 0x42, 160, 5, 183 }, + { 2, 2160000, 2160000, 0x4, 0x3, 0x0, 0x09, 0x09, 240, 0x42, 166, 6, 208 }, + { 2, 2376000, 2376000, 0x4, 0x3, 0x0, 0x09, 0x09, 264, 0x42, 166, 6, 208 }, + { 3, 2475000, 2475000, 0x5, 0x3, 0x1, 0x00, 0x07, 275, 0x42, 167, 6, 209 }, + { 4, 2700000, 2700000, 0x5, 0x3, 0x1, 0x00, 0x07, 300, 0x42, 188, 6, 230 }, + { 4, 2700000, 2700000, 0x5, 0x3, 0x1, 0x00, 0x07, 400, 0x4C, 188, 6, 230 }, + { 5, 2970000, 2970000, 0x6, 0x3, 0x1, 0x00, 0x07, 330, 0x42, 183, 6, 225 }, + { 6, 3240000, 3240000, 0x6, 0x3, 0x1, 0x00, 0x07, 360, 0x42, 203, 7, 256 }, + { 6, 3240000, 3240000, 0x6, 0x3, 0x1, 0x00, 0x07, 480, 0x4C, 203, 7, 256 }, + { 7, 3712500, 3712500, 0x4, 0x3, 0x0, 0x07, 0x0F, 550, 0x4C, 212, 7, 257 }, + { 8, 3960000, 3960000, 0x5, 0x3, 0x0, 0x07, 0x0F, 440, 0x42, 184, 6, 226 }, + { 9, 4320000, 4320000, 0x5, 0x3, 0x1, 0x07, 0x0F, 480, 0x42, 205, 7, 258 }, + { 10, 4455000, 4455000, 0x5, 0x3, 0x0, 0x07, 0x0F, 495, 0x42, 219, 7, 272 }, + { 10, 4455000, 4455000, 0x5, 0x3, 0x0, 0x07, 0x0F, 660, 0x4C, 219, 7, 272 }, + { 11, 4950000, 4950000, 0x6, 0x3, 0x1, 0x00, 0x07, 550, 0x42, 213, 7, 258 }, + { 12, 5940000, 5940000, 0x7, 0x3, 0x1, 0x00, 0x07, 660, 0x42, 244, 8, 292 }, +}; + +/* HDMI TX PLL tuning settings, pixel clock is input */ +static const struct hdmi_pll_tuning imx8qm_pll_table[] = { +/* bin VCO_freq min/max coar cod NDAC PMOS PTAT div-T P-Gain pad only */ + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 300, 0x08D, 0, 0, 0 }, + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 320, 0x08E, 0, 0, 0 }, + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 325, 0x08E, 0, 0, 0 }, + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 330, 0x08E, 0, 0, 0 }, + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 340, 0x08F, 0, 0, 0 }, + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 360, 0x0A7, 0, 0, 0 }, + { 0, 1700000, 2000000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 400, 0x0C5, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 300, 0x086, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 320, 0x087, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 325, 0x087, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 330, 0x104, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 340, 0x08B, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 360, 0x08D, 0, 0, 0 }, + { 1, 2000000, 2400000, 0x3, 0x1, 0x0, 0x8C, 0x2E, 400, 0x0A6, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 300, 0x04E, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 320, 0x04F, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 325, 0x04F, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 330, 0x085, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 340, 0x085, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 360, 0x086, 0, 0, 0 }, + { 2, 2400000, 2800000, 0x3, 0x1, 0x0, 0x04, 0x0D, 400, 0x08B, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 300, 0x047, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 320, 0x04B, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 325, 0x04B, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 330, 0x04B, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 340, 0x04D, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 360, 0x04E, 0, 0, 0 }, + { 3, 2800000, 3400000, 0x3, 0x1, 0x0, 0x04, 0x0D, 400, 0x085, 0, 0, 0 }, + { 4, 3400000, 3900000, 0x7, 0x1, 0x0, 0x8E, 0x2F, 375, 0x041, 0, 0, 0 }, + { 4, 3400000, 3900000, 0x7, 0x1, 0x0, 0x8E, 0x2F, 600, 0x08D, 0, 0, 0 }, + { 4, 3400000, 3900000, 0x7, 0x1, 0x0, 0x8E, 0x2F, 680, 0x0A6, 0, 0, 0 }, + { 5, 3900000, 4500000, 0x7, 0x1, 0x0, 0x8E, 0x2F, 450, 0x041, 0, 0, 0 }, + { 5, 3900000, 4500000, 0x7, 0x1, 0x0, 0x8E, 0x2F, 600, 0x087, 0, 0, 0 }, + { 5, 3900000, 4500000, 0x7, 0x1, 0x0, 0x8E, 0x2F, 680, 0x0A4, 0, 0, 0 }, + { 6, 4500000, 5200000, 0x7, 0x1, 0x0, 0x04, 0x0D, 600, 0x04F, 0, 0, 0 }, + { 6, 4500000, 5200000, 0x7, 0x1, 0x0, 0x04, 0x0D, 680, 0x086, 0, 0, 0 }, + { 7, 5200000, 6000000, 0x7, 0x1, 0x0, 0x04, 0x0D, 600, 0x04D, 0, 0, 0 }, + { 7, 5200000, 6000000, 0x7, 0x1, 0x0, 0x04, 0x0D, 680, 0x04F, 0, 0, 0 } +}; + +static void hdmi_arc_config(struct cdns_mhdp_device *mhdp) +{ + u16 txpu_calib_code; + u16 txpd_calib_code; + u16 txpu_adj_calib_code; + u16 txpd_adj_calib_code; + u16 prev_calib_code; + u16 new_calib_code; + u16 rdata; + + /* Power ARC */ + cdns_phy_reg_write(mhdp, TXDA_CYA_AUXDA_CYA, 0x0001); + + prev_calib_code = cdns_phy_reg_read(mhdp, TX_DIG_CTRL_REG_2); + txpu_calib_code = cdns_phy_reg_read(mhdp, CMN_TXPUCAL_CTRL); + txpd_calib_code = cdns_phy_reg_read(mhdp, CMN_TXPDCAL_CTRL); + txpu_adj_calib_code = cdns_phy_reg_read(mhdp, CMN_TXPU_ADJ_CTRL); + txpd_adj_calib_code = cdns_phy_reg_read(mhdp, CMN_TXPD_ADJ_CTRL); + + new_calib_code = ((txpu_calib_code + txpd_calib_code) / 2) + + txpu_adj_calib_code + txpd_adj_calib_code; + + if (new_calib_code != prev_calib_code) { + rdata = cdns_phy_reg_read(mhdp, TX_ANA_CTRL_REG_1); + rdata &= 0xDFFF; + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, rdata); + cdns_phy_reg_write(mhdp, TX_DIG_CTRL_REG_2, new_calib_code); + mdelay(10); + rdata |= 0x2000; + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, rdata); + udelay(150); + } + + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x0100); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x0300); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_3, 0x0000); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0x2008); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0x2018); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0x2098); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x030C); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_5, 0x0010); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_4, 0x4001); + mdelay(5); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_1, 0x2198); + mdelay(5); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x030D); + udelay(100); + cdns_phy_reg_write(mhdp, TX_ANA_CTRL_REG_2, 0x030F); +} + +static void hdmi_phy_set_vswing(struct cdns_mhdp_device *mhdp) +{ + const u32 num_lanes = 4; + u32 k; + + for (k = 0; k < num_lanes; k++) { + cdns_phy_reg_write(mhdp, (TX_DIAG_TX_DRV | (k << 9)), 0x7c0); + cdns_phy_reg_write(mhdp, (TX_TXCC_CPOST_MULT_00_0 | (k << 9)), 0x0); + cdns_phy_reg_write(mhdp, (TX_TXCC_CAL_SCLR_MULT_0 | (k << 9)), 0x120); + } +} + +static int hdmi_feedback_factor(struct cdns_mhdp_device *mhdp) +{ + u32 feedback_factor; + + switch (mhdp->video_info.color_fmt) { + case YCBCR_4_2_2: + feedback_factor = 1000; + break; + case YCBCR_4_2_0: + switch (mhdp->video_info.color_depth) { + case 8: + feedback_factor = 500; + break; + case 10: + feedback_factor = 625; + break; + case 12: + feedback_factor = 750; + break; + case 16: + feedback_factor = 1000; + break; + default: + //DRM_ERROR("Invalid ColorDepth\n"); + printk(KERN_ALERT "Invalid ColorDepth %s %d \n",__FUNCTION__,__LINE__); + return 0; + } + break; + default: + /* Assume RGB/YUV444 */ + switch (mhdp->video_info.color_depth) { + case 10: + feedback_factor = 1250; + break; + case 12: + feedback_factor = 1500; + break; + case 16: + feedback_factor = 2000; + break; + default: + feedback_factor = 1000; + } + } + return feedback_factor; +} + +static int hdmi_phy_config(struct cdns_mhdp_device *mhdp, + const struct hdmi_ctrl *p_ctrl_table, + const struct hdmi_pll_tuning *p_pll_table, + char pclk_in) +{ + const u32 num_lanes = 4; + u32 val, i, k; + + /* enable PHY isolation mode only for CMN */ + cdns_phy_reg_write(mhdp, PHY_PMA_ISOLATION_CTRL, 0xD000); + + /* set cmn_pll0_clk_datart1_div/cmn_pll0_clk_datart0_div dividers */ + val = cdns_phy_reg_read(mhdp, PHY_PMA_ISO_PLL_CTRL1); + val &= 0xFF00; + val |= 0x0012; + cdns_phy_reg_write(mhdp, PHY_PMA_ISO_PLL_CTRL1, val); + + /* assert PHY reset from isolation register */ + cdns_phy_reg_write(mhdp, PHY_ISO_CMN_CTRL, 0x0000); + /* assert PMA CMN reset */ + cdns_phy_reg_write(mhdp, PHY_PMA_ISO_CMN_CTRL, 0x0000); + + /* register XCVR_DIAG_BIDI_CTRL */ + for (k = 0; k < num_lanes; k++) + cdns_phy_reg_write(mhdp, XCVR_DIAG_BIDI_CTRL | (k << 9), 0x00FF); + + /* Describing Task phy_cfg_hdp */ + + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val &= 0xFFF7; + val |= 0x0008; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + /* PHY Registers */ + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val &= 0xCFFF; + val |= p_ctrl_table->cmn_ref_clk_dig_div << 12; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + val = cdns_phy_reg_read(mhdp, PHY_HDP_CLK_CTL); + val &= 0x00FF; + val |= 0x1200; + cdns_phy_reg_write(mhdp, PHY_HDP_CLK_CTL, val); + + /* Common control module control and diagnostic registers */ + val = cdns_phy_reg_read(mhdp, CMN_CDIAG_REFCLK_CTRL); + val &= 0x8FFF; + val |= p_ctrl_table->ref_clk_divider_scaler << 12; + val |= 0x00C0; + cdns_phy_reg_write(mhdp, CMN_CDIAG_REFCLK_CTRL, val); + + /* High speed clock used */ + val = cdns_phy_reg_read(mhdp, CMN_DIAG_HSCLK_SEL); + val &= 0xFF00; + val |= (p_ctrl_table->cmnda_hs_clk_0_sel >> 1) << 0; + val |= (p_ctrl_table->cmnda_hs_clk_1_sel >> 1) << 4; + cdns_phy_reg_write(mhdp, CMN_DIAG_HSCLK_SEL, val); + + for (k = 0; k < num_lanes; k++) { + val = cdns_phy_reg_read(mhdp, (XCVR_DIAG_HSCLK_SEL | (k << 9))); + val &= 0xCFFF; + val |= (p_ctrl_table->cmnda_hs_clk_0_sel >> 1) << 12; + cdns_phy_reg_write(mhdp, (XCVR_DIAG_HSCLK_SEL | (k << 9)), val); + } + + /* PLL 0 control state machine registers */ + val = p_ctrl_table->vco_ring_select << 12; + cdns_phy_reg_write(mhdp, CMN_PLLSM0_USER_DEF_CTRL, val); + + if (pclk_in == true) + val = 0x30A0; + else { + val = cdns_phy_reg_read(mhdp, CMN_PLL0_VCOCAL_START); + val &= 0xFE00; + val |= p_pll_table->vco_cal_code; + } + cdns_phy_reg_write(mhdp, CMN_PLL0_VCOCAL_START, val); + + cdns_phy_reg_write(mhdp, CMN_PLL0_VCOCAL_INIT_TMR, 0x0064); + cdns_phy_reg_write(mhdp, CMN_PLL0_VCOCAL_ITER_TMR, 0x000A); + + /* Common functions control and diagnostics registers */ + val = p_ctrl_table->cmnda_pll0_hs_sym_div_sel << 8; + val |= p_ctrl_table->cmnda_pll0_ip_div; + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_INCLK_CTRL, val); + + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_OVRD, 0x0000); + + val = p_ctrl_table->cmnda_pll0_fb_div_high; + val |= (1 << 15); + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_FBH_OVRD, val); + + val = p_ctrl_table->cmnda_pll0_fb_div_low; + val |= (1 << 15); + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_FBL_OVRD, val); + + if (pclk_in == false) { + val = p_ctrl_table->cmnda_pll0_pxdiv_low; + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_PXL_DIVL, val); + + val = p_ctrl_table->cmnda_pll0_pxdiv_high; + val |= (1 << 15); + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_PXL_DIVH, val); + } + + val = p_pll_table->volt_to_current_coarse; + val |= (p_pll_table->volt_to_current) << 4; + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_V2I_TUNE, val); + + val = p_pll_table->charge_pump_gain; + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_CP_TUNE, val); + + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_LF_PROG, 0x0008); + + val = p_pll_table->pmos_ctrl; + val |= (p_pll_table->ndac_ctrl) << 8; + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_PTATIS_TUNE1, val); + + val = p_pll_table->ptat_ndac_ctrl; + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_PTATIS_TUNE2, val); + + if (pclk_in == true) + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_TEST_MODE, 0x0022); + else + cdns_phy_reg_write(mhdp, CMN_DIAG_PLL0_TEST_MODE, 0x0020); + cdns_phy_reg_write(mhdp, CMN_PSM_CLK_CTRL, 0x0016); + + /* Transceiver control and diagnostic registers */ + for (k = 0; k < num_lanes; k++) { + val = cdns_phy_reg_read(mhdp, (XCVR_DIAG_PLLDRC_CTRL | (k << 9))); + val &= 0xBFFF; + cdns_phy_reg_write(mhdp, (XCVR_DIAG_PLLDRC_CTRL | (k << 9)), val); + } + + for (k = 0; k < num_lanes; k++) { + val = cdns_phy_reg_read(mhdp, (TX_DIAG_TX_CTRL | (k << 9))); + val &= 0xFF3F; + val |= (p_ctrl_table->hsclk_div_tx_sub_rate >> 1) << 6; + cdns_phy_reg_write(mhdp, (TX_DIAG_TX_CTRL | (k << 9)), val); + } + + /* + * for single ended reference clock val |= 0x0030; + * for differential clock val |= 0x0000; + */ + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + val &= 0xFF8F; + if (pclk_in == true) + val |= 0x0030; + cdns_phy_reg_write(mhdp, PHY_PMA_CMN_CTRL1, val); + + /* for differential clock on the refclk_p and + * refclk_m off chip pins: CMN_DIAG_ACYA[8]=1'b1 */ + cdns_phy_reg_write(mhdp, CMN_DIAG_ACYA, 0x0100); + + /* Deassert PHY reset */ + cdns_phy_reg_write(mhdp, PHY_ISO_CMN_CTRL, 0x0001); + cdns_phy_reg_write(mhdp, PHY_PMA_ISO_CMN_CTRL, 0x0003); + + /* Power state machine registers */ + for (k = 0; k < num_lanes; k++) + cdns_phy_reg_write(mhdp, XCVR_PSM_RCTRL | (k << 9), 0xFEFC); + + /* Assert cmn_macro_pwr_en */ + cdns_phy_reg_write(mhdp, PHY_PMA_ISO_CMN_CTRL, 0x0013); + + /* wait for cmn_macro_pwr_en_ack */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_PMA_ISO_CMN_CTRL); + if (val & (1 << 5)) + break; + msleep(20); + } + if (i == 10) { + //DRM_ERROR("PMA ouput macro power up failed\n"); + + printk(KERN_ALERT "PMA ouput macro power up failed %s %d \n",__FUNCTION__,__LINE__); + return false; + } + + /* wait for cmn_ready */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_PMA_CMN_CTRL1); + if (val & (1 << 0)) + break; + msleep(20); + } + if (i == 10) { + //DRM_ERROR("PMA output ready failed\n"); + + printk(KERN_ALERT "PMA output ready failed %s %d \n",__FUNCTION__,__LINE__); + return false; + } + + for (k = 0; k < num_lanes; k++) { + cdns_phy_reg_write(mhdp, TX_PSC_A0 | (k << 9), 0x6791); + cdns_phy_reg_write(mhdp, TX_PSC_A1 | (k << 9), 0x6790); + cdns_phy_reg_write(mhdp, TX_PSC_A2 | (k << 9), 0x0090); + cdns_phy_reg_write(mhdp, TX_PSC_A3 | (k << 9), 0x0090); + + val = cdns_phy_reg_read(mhdp, RX_PSC_CAL | (k << 9)); + val &= 0xFFBB; + cdns_phy_reg_write(mhdp, RX_PSC_CAL | (k << 9), val); + + val = cdns_phy_reg_read(mhdp, RX_PSC_A0 | (k << 9)); + val &= 0xFFBB; + cdns_phy_reg_write(mhdp, RX_PSC_A0 | (k << 9), val); + } + return true; +} + +static int hdmi_phy_cfg_t28hpc(struct cdns_mhdp_device *mhdp, + struct drm_display_mode *mode) +{ + const struct hdmi_ctrl *p_ctrl_table; + const struct hdmi_pll_tuning *p_pll_table; + const u32 refclk_freq_khz = 27000; + const u8 pclk_in = false; + u32 pixel_freq = mode->clock; + u32 vco_freq, char_freq; + u32 div_total, feedback_factor; + u32 i, ret; + + feedback_factor = hdmi_feedback_factor(mhdp); + + char_freq = pixel_freq * feedback_factor / 1000; + + dev_info(mhdp->dev, "Pixel clock: %d KHz, character clock: %d, bpc is %0d-bit.\n", + pixel_freq, char_freq, mhdp->video_info.color_depth); + + /* Get right row from the ctrl_table table. + * Check if 'pixel_freq_khz' value matches the PIXEL_CLK_FREQ column. + * Consider only the rows with FEEDBACK_FACTOR column matching feedback_factor. */ + for (i = 0; i < ARRAY_SIZE(imx8mq_ctrl_table); i++) { + if (feedback_factor == imx8mq_ctrl_table[i].feedback_factor && + pixel_freq == imx8mq_ctrl_table[i].pixel_clk_freq_min) { + p_ctrl_table = &imx8mq_ctrl_table[i]; + break; + } + } + if (i == ARRAY_SIZE(imx8mq_ctrl_table)) { + dev_warn(mhdp->dev,"Pixel clk (%d KHz) not supported, color depth (%0d-bit)\n", + pixel_freq, mhdp->video_info.color_depth); + return 0; + } + + div_total = p_ctrl_table->pll_fb_div_total; + vco_freq = refclk_freq_khz * div_total / p_ctrl_table->cmnda_pll0_ip_div; + + /* Get right row from the imx8mq_pll_table table. + * Check if vco_freq_khz and feedback_div_total + * column matching with imx8mq_pll_table. */ + for (i = 0; i < ARRAY_SIZE(imx8mq_pll_table); i++) { + if (vco_freq == imx8mq_pll_table[i].vco_freq_min && + div_total == imx8mq_pll_table[i].feedback_div_total) { + p_pll_table = &imx8mq_pll_table[i]; + break; + } + } + if (i == ARRAY_SIZE(imx8mq_pll_table)) { + dev_warn(mhdp->dev,"VCO (%d KHz) not supported\n", vco_freq); + return 0; + } + dev_info(mhdp->dev, "VCO frequency is %d KHz\n", vco_freq); + + ret = hdmi_phy_config(mhdp, p_ctrl_table, p_pll_table, pclk_in); + if (ret == false) + return 0; + + return char_freq; +} + +static int hdmi_phy_cfg_ss28fdsoi(struct cdns_mhdp_device *mhdp, + struct drm_display_mode *mode) +{ + const struct hdmi_ctrl *p_ctrl_table; + const struct hdmi_pll_tuning *p_pll_table; + const u8 pclk_in = true; + u32 pixel_freq = mode->clock; + u32 vco_freq, char_freq; + u32 div_total, feedback_factor; + u32 ret, i; + + feedback_factor = hdmi_feedback_factor(mhdp); + + char_freq = pixel_freq * feedback_factor / 1000; + + dev_info(mhdp->dev, "Pixel clock: %d KHz, character clock: %d, bpc is %0d-bit.\n", + pixel_freq, char_freq, mhdp->video_info.color_depth); + + /* Get right row from the ctrl_table table. + * Check if 'pixel_freq_khz' value matches the PIXEL_CLK_FREQ column. + * Consider only the rows with FEEDBACK_FACTOR column matching feedback_factor. */ + for (i = 0; i < ARRAY_SIZE(imx8qm_ctrl_table); i++) { + if (feedback_factor == imx8qm_ctrl_table[i].feedback_factor && + pixel_freq >= imx8qm_ctrl_table[i].pixel_clk_freq_min && + pixel_freq <= imx8qm_ctrl_table[i].pixel_clk_freq_max) { + p_ctrl_table = &imx8qm_ctrl_table[i]; + break; + } + } + if (i == ARRAY_SIZE(imx8qm_ctrl_table)) { + dev_warn(mhdp->dev,"Pixel clk (%d KHz) not supported, color depth (%0d-bit)\n", + pixel_freq, mhdp->video_info.color_depth); + return 0; + } + + div_total = p_ctrl_table->pll_fb_div_total; + vco_freq = pixel_freq * div_total / p_ctrl_table->cmnda_pll0_ip_div; + + /* Get right row from the imx8mq_pll_table table. + * Check if vco_freq_khz and feedback_div_total + * column matching with imx8mq_pll_table. */ + for (i = 0; i < ARRAY_SIZE(imx8qm_pll_table); i++) { + if (vco_freq >= imx8qm_pll_table[i].vco_freq_min && + vco_freq < imx8qm_pll_table[i].vco_freq_max && + div_total == imx8qm_pll_table[i].feedback_div_total) { + p_pll_table = &imx8qm_pll_table[i]; + break; + } + } + if (i == ARRAY_SIZE(imx8qm_pll_table)) { + dev_warn(mhdp->dev,"VCO (%d KHz) not supported\n", vco_freq); + return 0; + } + + dev_info(mhdp->dev, "VCO frequency is %d KHz\n", vco_freq); + + ret = hdmi_phy_config(mhdp, p_ctrl_table, p_pll_table, pclk_in); + if (ret == false) + return 0; + + return char_freq; +} + +static int hdmi_phy_power_up(struct cdns_mhdp_device *mhdp) +{ + u32 val, i; + + /* set Power State to A2 */ + cdns_phy_reg_write(mhdp, PHY_HDP_MODE_CTRL, 0x0004); + + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_0, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_1, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_2, 1); + cdns_phy_reg_write(mhdp, TX_DIAG_ACYA_3, 1); + + /* Wait for Power State A2 Ack */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_MODE_CTRL); + if (val & (1 << 6)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait A2 Ack failed\n"); + return -1; + } + + /* Power up ARC */ + hdmi_arc_config(mhdp); + + /* Configure PHY in A0 mode (PHY must be in the A0 power + * state in order to transmit data) + */ + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + + // FIXME + cdns_phy_reg_write(mhdp, PHY_HDP_MODE_CTRL, 0x0101); //imx8mq + //cdns_phy_reg_write(mhdp, PHY_HDP_MODE_CTRL, 0x0001); + + /* Wait for Power State A0 Ack */ + for (i = 0; i < 10; i++) { + val = cdns_phy_reg_read(mhdp, PHY_HDP_MODE_CTRL); + if (val & (1 << 4)) + break; + msleep(20); + } + if (i == 10) { + dev_err(mhdp->dev, "Wait A0 Ack failed\n"); + return -1; + } + + printk(KERN_ALERT "DEBUG: %s %d \n",__FUNCTION__,__LINE__); + return 0; +} + +bool cdns_hdmi_phy_video_valid_imx8mq(struct cdns_mhdp_device *mhdp) +{ + u32 rate = mhdp->valid_mode->clock; + int i; + + for (i = 0; i < ARRAY_SIZE(imx8mq_ctrl_table); i++) + if(rate == imx8mq_ctrl_table[i].pixel_clk_freq_min) + return true; + return false; +} + +int cdns_hdmi_phy_set_imx8mq(struct cdns_mhdp_device *mhdp) +{ + struct drm_display_mode *mode = &mhdp->mode; + int ret; + + /* Check HDMI FW alive before HDMI PHY init */ + ret = cdns_mhdp_check_alive(mhdp); + if (ret == false) { + dev_err(mhdp->dev, "NO HDMI FW running\n"); + return -ENXIO; + } + + /* Configure PHY */ + mhdp->hdmi.char_rate = hdmi_phy_cfg_t28hpc(mhdp, mode); + if (mhdp->hdmi.char_rate == 0) { + dev_err(mhdp->dev, "failed to set phy pclock\n"); + return -EINVAL; + } + + ret = hdmi_phy_power_up(mhdp); + if (ret < 0) + return ret; + + hdmi_phy_set_vswing(mhdp); + + return true; +} + +bool cdns_hdmi_phy_video_valid_imx8qm(struct cdns_mhdp_device *mhdp) +{ + u32 rate = mhdp->valid_mode->clock; + int i; + + for (i = 0; i < ARRAY_SIZE(imx8qm_ctrl_table); i++) + if(rate >= imx8qm_ctrl_table[i].pixel_clk_freq_min && + rate <= imx8qm_ctrl_table[i].pixel_clk_freq_max) + return true; + return false; +} + +int cdns_hdmi_phy_set_imx8qm(struct cdns_mhdp_device *mhdp) +{ + struct drm_display_mode *mode = &mhdp->mode; + int ret; + + /* Check HDMI FW alive before HDMI PHY init */ + ret = cdns_mhdp_check_alive(mhdp); + if (ret == false) { + dev_err(mhdp->dev, "NO HDMI FW running\n"); + return -ENXIO; + } + + /* Configure PHY */ + mhdp->hdmi.char_rate = hdmi_phy_cfg_ss28fdsoi(mhdp, mode); + if (mhdp->hdmi.char_rate == 0) { + dev_err(mhdp->dev, "failed to set phy pclock\n"); + return -EINVAL; + } + + ret = hdmi_phy_power_up(mhdp); + if (ret < 0) + return ret; + + hdmi_phy_set_vswing(mhdp); + + return true; +} diff --git a/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c b/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c new file mode 100644 index 0000000..daee92c --- /dev/null +++ b/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c @@ -0,0 +1,211 @@ +/* + * copyright (c) 2019 nxp semiconductor, inc. + * + * this program is free software; you can redistribute it and/or modify + * it under the terms of the gnu general public license version 2 as + * published by the free software foundation. + */ +#include +#include +#include +#include +#include +#include + +#include "cdns-mhdp-imx.h" +#include "cdn-mhdp-phy.h" +#include "imx-drm.h" + +static void cdns_mhdp_imx_encoder_disable(struct drm_encoder *encoder) +{ + // FIXME + struct drm_bridge* bridge = drm_bridge_chain_get_first_bridge(encoder); + struct cdns_mhdp_device *mhdp = bridge->driver_private; + + cdns_mhdp_plat_call(mhdp, plat_init); +} + +static void cdns_mhdp_imx_encoder_enable(struct drm_encoder *encoder) +{ + // FIXME + struct drm_bridge* bridge = drm_bridge_chain_get_first_bridge(encoder); + struct cdns_mhdp_device *mhdp = bridge->driver_private; + + cdns_mhdp_plat_call(mhdp, plat_deinit); +} + +static int cdns_mhdp_imx_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + // FIXME + struct drm_bridge* bridge = drm_bridge_chain_get_first_bridge(encoder); + struct imx_crtc_state *imx_crtc_state = to_imx_crtc_state(crtc_state); + struct cdns_mhdp_device *mhdp = bridge->driver_private; + + if (mhdp->plat_data->video_format != 0) + imx_crtc_state->bus_format = mhdp->plat_data->video_format; + + if (mhdp->force_mode_set) + crtc_state->mode_changed = true; + + return 0; +} + +static const struct drm_encoder_helper_funcs cdns_mhdp_imx_encoder_helper_funcs = { + .enable = cdns_mhdp_imx_encoder_enable, + .disable = cdns_mhdp_imx_encoder_disable, + .atomic_check = cdns_mhdp_imx_encoder_atomic_check, +}; + +static const struct drm_encoder_funcs cdns_mhdp_imx_encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +static struct cdns_plat_data imx8mq_hdmi_drv_data = { + .plat_name = "imx8mq-hdmi", + .bind = cdns_hdmi_bind, + .unbind = cdns_hdmi_unbind, + .phy_set = cdns_hdmi_phy_set_imx8mq, + .phy_video_valid = cdns_hdmi_phy_video_valid_imx8mq, + .bus_type = BUS_TYPE_NORMAL_APB, +}; + +static struct cdns_plat_data imx8mq_dp_drv_data = { + .plat_name = "imx8mq-dp", + .bind = cdns_dp_bind, + .unbind = cdns_dp_unbind, + .phy_set = cdns_dp_phy_set_imx8mq, + .bus_type = BUS_TYPE_NORMAL_APB, +}; + +static const struct of_device_id cdns_mhdp_imx_dt_ids[] = { + { .compatible = "cdn,imx8mq-hdmi", + .data = &imx8mq_hdmi_drv_data + }, + /*{ .compatible = "cdn,imx8mq-dp", + .data = &imx8mq_dp_drv_data + }*/ + {}, +}; +MODULE_DEVICE_TABLE(of, cdns_mhdp_imx_dt_ids); + +static int cdns_mhdp_imx_bind(struct device *dev, struct device *master, + void *data) +{ + struct platform_device *pdev = to_platform_device(dev); + const struct cdns_plat_data *plat_data; + const struct of_device_id *match; + struct drm_device *drm = data; + struct drm_encoder *encoder; + struct imx_mhdp_device *imx_mhdp; + int ret; + + if (!pdev->dev.of_node) + return -ENODEV; + + imx_mhdp = devm_kzalloc(&pdev->dev, sizeof(*imx_mhdp), GFP_KERNEL); + if (!imx_mhdp) + return -ENOMEM; + + match = of_match_node(cdns_mhdp_imx_dt_ids, pdev->dev.of_node); + plat_data = match->data; + encoder = &imx_mhdp->encoder; + + encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); + + ret = of_property_read_string(pdev->dev.of_node, "firmware-name", + &imx_mhdp->firmware_name); + /* + * If we failed to find the CRTC(s) which this encoder is + * supposed to be connected to, it's because the CRTC has + * not been registered yet. Defer probing, and hope that + * the required CRTC is added later. + */ + if (encoder->possible_crtcs == 0) { + printk(KERN_ALERT "DEBUG: %s %d encoder crtcs not found.\n",__FUNCTION__,__LINE__); + + return -EPROBE_DEFER; + } + + drm_encoder_helper_add(encoder, &cdns_mhdp_imx_encoder_helper_funcs); + drm_encoder_init(drm, encoder, &cdns_mhdp_imx_encoder_funcs, + DRM_MODE_ENCODER_TMDS, NULL); + + + imx_mhdp->mhdp.plat_data = plat_data; + imx_mhdp->mhdp.dev = dev; + imx_mhdp->mhdp.bus_type = plat_data->bus_type; + ret = plat_data->bind(pdev, encoder, &imx_mhdp->mhdp); + /* + * If cdns_mhdp_bind() fails we'll never call cdns_mhdp_unbind(), + * which would have called the encoder cleanup. Do it manually. + */ + if (ret < 0) + drm_encoder_cleanup(encoder); + + return ret; +} + +static void cdns_mhdp_imx_unbind(struct device *dev, struct device *master, + void *data) +{ + struct imx_mhdp_device *imx_mhdp = dev_get_drvdata(dev); + + imx_mhdp->mhdp.plat_data->unbind(dev); +} + +static const struct component_ops cdns_mhdp_imx_ops = { + .bind = cdns_mhdp_imx_bind, + .unbind = cdns_mhdp_imx_unbind, +}; + +static int cdns_mhdp_imx_suspend(struct device *dev) +{ + struct imx_mhdp_device *imx_mhdp = dev_get_drvdata(dev); + + cdns_mhdp_plat_call(&imx_mhdp->mhdp, suspend); + + return 0; +} + +static int cdns_mhdp_imx_resume(struct device *dev) +{ + struct imx_mhdp_device *imx_mhdp = dev_get_drvdata(dev); + + cdns_mhdp_plat_call(&imx_mhdp->mhdp, resume); + + return 0; +} + +static int cdns_mhdp_imx_probe(struct platform_device *pdev) +{ + return component_add(&pdev->dev, &cdns_mhdp_imx_ops); +} + +static int cdns_mhdp_imx_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &cdns_mhdp_imx_ops); + + return 0; +} + +static const struct dev_pm_ops cdns_mhdp_imx_pm_ops = { + SET_LATE_SYSTEM_SLEEP_PM_OPS(cdns_mhdp_imx_suspend, cdns_mhdp_imx_resume) +}; + +static struct platform_driver cdns_mhdp_imx_platform_driver = { + .probe = cdns_mhdp_imx_probe, + .remove = cdns_mhdp_imx_remove, + .driver = { + .name = "cdns-mhdp-imx", + .of_match_table = cdns_mhdp_imx_dt_ids, + .pm = &cdns_mhdp_imx_pm_ops, + }, +}; + +module_platform_driver(cdns_mhdp_imx_platform_driver); + +MODULE_AUTHOR("Sandor YU "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cdnhdmi-imx"); diff --git a/drivers/gpu/drm/imx/cdn-mhdp-phy.h b/drivers/gpu/drm/imx/cdn-mhdp-phy.h new file mode 100644 index 0000000..6ad1f37 --- /dev/null +++ b/drivers/gpu/drm/imx/cdn-mhdp-phy.h @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef _CDN_DP_PHY_H +#define _CDN_DP_PHY_H + +#include + +#define CMN_SSM_BIAS_TMR 0x0022 +#define CMN_PLLSM0_PLLEN_TMR 0x0029 +#define CMN_PLLSM0_PLLPRE_TMR 0x002A +#define CMN_PLLSM0_PLLVREF_TMR 0x002B +#define CMN_PLLSM0_PLLLOCK_TMR 0x002C +#define CMN_PLLSM0_USER_DEF_CTRL 0x002F +#define CMN_PSM_CLK_CTRL 0x0061 +#define CMN_CDIAG_REFCLK_CTRL 0x0062 +#define CMN_PLL0_VCOCAL_START 0x0081 +#define CMN_PLL0_VCOCAL_INIT_TMR 0x0084 +#define CMN_PLL0_VCOCAL_ITER_TMR 0x0085 +#define CMN_PLL0_INTDIV 0x0094 +#define CMN_PLL0_FRACDIV 0x0095 +#define CMN_PLL0_HIGH_THR 0x0096 +#define CMN_PLL0_DSM_DIAG 0x0097 +#define CMN_PLL0_SS_CTRL1 0x0098 +#define CMN_PLL0_SS_CTRL2 0x0099 +#define CMN_ICAL_INIT_TMR 0x00C4 +#define CMN_ICAL_ITER_TMR 0x00C5 +#define CMN_RXCAL_INIT_TMR 0x00D4 +#define CMN_RXCAL_ITER_TMR 0x00D5 +#define CMN_TXPUCAL_CTRL 0x00E0 +#define CMN_TXPUCAL_INIT_TMR 0x00E4 +#define CMN_TXPUCAL_ITER_TMR 0x00E5 +#define CMN_TXPDCAL_CTRL 0x00F0 +#define CMN_TXPDCAL_INIT_TMR 0x00F4 +#define CMN_TXPDCAL_ITER_TMR 0x00F5 +#define CMN_ICAL_ADJ_INIT_TMR 0x0102 +#define CMN_ICAL_ADJ_ITER_TMR 0x0103 +#define CMN_RX_ADJ_INIT_TMR 0x0106 +#define CMN_RX_ADJ_ITER_TMR 0x0107 +#define CMN_TXPU_ADJ_CTRL 0x0108 +#define CMN_TXPU_ADJ_INIT_TMR 0x010A +#define CMN_TXPU_ADJ_ITER_TMR 0x010B +#define CMN_TXPD_ADJ_CTRL 0x010c +#define CMN_TXPD_ADJ_INIT_TMR 0x010E +#define CMN_TXPD_ADJ_ITER_TMR 0x010F +#define CMN_DIAG_PLL0_FBH_OVRD 0x01C0 +#define CMN_DIAG_PLL0_FBL_OVRD 0x01C1 +#define CMN_DIAG_PLL0_OVRD 0x01C2 +#define CMN_DIAG_PLL0_TEST_MODE 0x01C4 +#define CMN_DIAG_PLL0_V2I_TUNE 0x01C5 +#define CMN_DIAG_PLL0_CP_TUNE 0x01C6 +#define CMN_DIAG_PLL0_LF_PROG 0x01C7 +#define CMN_DIAG_PLL0_PTATIS_TUNE1 0x01C8 +#define CMN_DIAG_PLL0_PTATIS_TUNE2 0x01C9 +#define CMN_DIAG_PLL0_INCLK_CTRL 0x01CA +#define CMN_DIAG_PLL0_PXL_DIVH 0x01CB +#define CMN_DIAG_PLL0_PXL_DIVL 0x01CC +#define CMN_DIAG_HSCLK_SEL 0x01E0 +#define CMN_DIAG_PER_CAL_ADJ 0x01EC +#define CMN_DIAG_CAL_CTRL 0x01ED +#define CMN_DIAG_ACYA 0x01FF +#define XCVR_PSM_RCTRL 0x4001 +#define XCVR_PSM_CAL_TMR 0x4002 +#define XCVR_PSM_A0IN_TMR 0x4003 +#define TX_TXCC_CAL_SCLR_MULT_0 0x4047 +#define TX_TXCC_CPOST_MULT_00_0 0x404C +#define TX_TXCC_MGNFS_MULT_000_0 0x4050 +#define XCVR_DIAG_PLLDRC_CTRL 0x40E0 +#define XCVR_DIAG_PLLDRC_CTRL 0x40E0 +#define XCVR_DIAG_HSCLK_SEL 0x40E1 +#define XCVR_DIAG_BIDI_CTRL 0x40E8 +#define XCVR_DIAG_LANE_FCM_EN_MGN_TMR 0x40F2 +#define XCVR_DIAG_LANE_FCM_EN_MGN 0x40F2 +#define TX_PSC_A0 0x4100 +#define TX_PSC_A1 0x4101 +#define TX_PSC_A2 0x4102 +#define TX_PSC_A3 0x4103 +#define TX_RCVDET_CTRL 0x4120 +#define TX_RCVDET_EN_TMR 0x4122 +#define TX_RCVDET_EN_TMR 0x4122 +#define TX_RCVDET_ST_TMR 0x4123 +#define TX_RCVDET_ST_TMR 0x4123 +#define TX_BIST_CTRL 0x4140 +#define TX_BIST_UDDWR 0x4141 +#define TX_DIAG_TX_CTRL 0x41E0 +#define TX_DIAG_TX_DRV 0x41E1 +#define TX_DIAG_BGREF_PREDRV_DELAY 0x41E7 +#define TX_DIAG_BGREF_PREDRV_DELAY 0x41E7 +#define XCVR_PSM_RCTRL_1 0x4201 +#define TX_TXCC_CAL_SCLR_MULT_1 0x4247 +#define TX_TXCC_CPOST_MULT_00_1 0x424C +#define TX_TXCC_MGNFS_MULT_000_1 0x4250 +#define XCVR_DIAG_PLLDRC_CTRL_1 0x42E0 +#define XCVR_DIAG_HSCLK_SEL_1 0x42E1 +#define XCVR_DIAG_LANE_FCM_EN_MGN_TMR_1 0x42F2 +#define TX_RCVDET_EN_TMR_1 0x4322 +#define TX_RCVDET_ST_TMR_1 0x4323 +#define TX_DIAG_ACYA_0 0x41FF +#define TX_DIAG_ACYA_1 0x43FF +#define TX_DIAG_ACYA_2 0x45FF +#define TX_DIAG_ACYA_3 0x47FF +#define TX_ANA_CTRL_REG_1 0x5020 +#define TX_ANA_CTRL_REG_2 0x5021 +#define TXDA_COEFF_CALC 0x5022 +#define TX_DIG_CTRL_REG_1 0x5023 +#define TX_DIG_CTRL_REG_2 0x5024 +#define TXDA_CYA_AUXDA_CYA 0x5025 +#define TX_ANA_CTRL_REG_3 0x5026 +#define TX_ANA_CTRL_REG_4 0x5027 +#define TX_ANA_CTRL_REG_5 0x5029 +#define RX_PSC_A0 0x8000 +#define RX_PSC_CAL 0x8006 +#define PMA_LANE_CFG 0xC000 +#define PIPE_CMN_CTRL1 0xC001 +#define PIPE_CMN_CTRL2 0xC002 +#define PIPE_COM_LOCK_CFG1 0xC003 +#define PIPE_COM_LOCK_CFG2 0xC004 +#define PIPE_RCV_DET_INH 0xC005 +#define PHY_HDP_MODE_CTRL 0xC008 +#define PHY_HDP_CLK_CTL 0xC009 +#define STS 0xC00F +#define PHY_ISO_CMN_CTRL 0xC010 +#define PHY_ISO_CMN_CTRL 0xC010 +#define PHY_HDP_TX_CTL_L0 0xC408 +#define PHY_DP_TX_CTL 0xC408 +#define PHY_HDP_TX_CTL_L1 0xC448 +#define PHY_HDP_TX_CTL_L2 0xC488 +#define PHY_HDP_TX_CTL_L3 0xC4C8 +#define PHY_PMA_CMN_CTRL1 0xC800 +#define PMA_CMN_CTRL1 0xC800 +#define PHY_PMA_ISO_CMN_CTRL 0xC810 +#define PHY_PMA_ISO_PLL_CTRL1 0xC812 +#define PHY_PMA_ISOLATION_CTRL 0xC81F +#define PHY_ISOLATION_CTRL 0xC81F +#define PHY_PMA_ISO_XCVR_CTRL 0xCC11 +#define PHY_PMA_ISO_LINK_MODE 0xCC12 +#define PHY_PMA_ISO_PWRST_CTRL 0xCC13 +#define PHY_PMA_ISO_TX_DATA_LO 0xCC14 +#define PHY_PMA_ISO_TX_DATA_HI 0xCC15 +#define PHY_PMA_ISO_RX_DATA_LO 0xCC16 +#define PHY_PMA_ISO_RX_DATA_HI 0xCC17 + +int cdns_dp_phy_set_imx8mq(struct cdns_mhdp_device *hdp); +int cdns_dp_phy_set_imx8qm(struct cdns_mhdp_device *hdp); +bool cdns_hdmi_phy_video_valid_imx8mq(struct cdns_mhdp_device *hdp); +bool cdns_hdmi_phy_video_valid_imx8qm(struct cdns_mhdp_device *hdp); +int cdns_hdmi_phy_set_imx8mq(struct cdns_mhdp_device *hdp); +int cdns_hdmi_phy_set_imx8qm(struct cdns_mhdp_device *hdp); +#endif /* _CDNS_MHDP_PHY_H */ diff --git a/drivers/gpu/drm/imx/cdns-mhdp-imx.h b/drivers/gpu/drm/imx/cdns-mhdp-imx.h new file mode 100644 index 0000000..b95907d --- /dev/null +++ b/drivers/gpu/drm/imx/cdns-mhdp-imx.h @@ -0,0 +1,75 @@ +/* + * Cadence High-Definition Multimedia Interface (HDMI) driver + * + * Copyright (C) 2019 NXP Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#ifndef CDNS_MHDP_IMX_H_ +#define CDNS_MHDP_IMX_H_ + +#include +#include + + +struct imx_mhdp_device; + +struct imx_hdp_clks { + struct clk *av_pll; + struct clk *dig_pll; + struct clk *clk_ipg; + struct clk *clk_core; + struct clk *clk_pxl; + struct clk *clk_pxl_mux; + struct clk *clk_pxl_link; + + struct clk *lpcg_hdp; + struct clk *lpcg_msi; + struct clk *lpcg_pxl; + struct clk *lpcg_vif; + struct clk *lpcg_lis; + struct clk *lpcg_apb; + struct clk *lpcg_apb_csr; + struct clk *lpcg_apb_ctrl; + + struct clk *lpcg_i2s; + struct clk *clk_i2s_bypass; +}; + +struct imx_mhdp_device { + struct cdns_mhdp_device mhdp; + struct drm_encoder encoder; + + struct mutex audio_mutex; + spinlock_t audio_lock; + bool connected; + bool active; + bool suspended; + struct imx_hdp_clks clks; + const struct firmware *fw; + const char *firmware_name; + + int bus_type; + + struct device *pd_mhdp_dev; + struct device *pd_pll0_dev; + struct device *pd_pll1_dev; + struct device_link *pd_mhdp_link; + struct device_link *pd_pll0_link; + struct device_link *pd_pll1_link; +}; + +void cdns_mhdp_plat_init_imx8qm(struct cdns_mhdp_device *mhdp); +void cdns_mhdp_plat_deinit_imx8qm(struct cdns_mhdp_device *mhdp); +void cdns_mhdp_pclk_rate_imx8qm(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_firmware_init_imx8qm(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_resume_imx8qm(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_suspend_imx8qm(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_power_on_imx8qm(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_power_on_ls1028a(struct cdns_mhdp_device *mhdp); +void cdns_mhdp_pclk_rate_ls1028a(struct cdns_mhdp_device *mhdp); +#endif /* CDNS_MHDP_IMX_H_ */ diff --git a/drivers/gpu/drm/imx/dcss/dcss-dev.c b/drivers/gpu/drm/imx/dcss/dcss-dev.c index 3f5750c..6c12880 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dev.c +++ b/drivers/gpu/drm/imx/dcss/dcss-dev.c @@ -17,6 +17,11 @@ static void dcss_clocks_enable(struct dcss_dev *dcss) { + if (dcss->hdmi_output) { + clk_prepare_enable(dcss->pll_phy_ref_clk); + clk_prepare_enable(dcss->pll_src_clk); + } + clk_prepare_enable(dcss->axi_clk); clk_prepare_enable(dcss->apb_clk); clk_prepare_enable(dcss->rtrm_clk); @@ -31,6 +36,11 @@ static void dcss_clocks_disable(struct dcss_dev *dcss) clk_disable_unprepare(dcss->rtrm_clk); clk_disable_unprepare(dcss->apb_clk); clk_disable_unprepare(dcss->axi_clk); + + if (dcss->hdmi_output) { + clk_disable_unprepare(dcss->pll_src_clk); + clk_disable_unprepare(dcss->pll_phy_ref_clk); + } } static void dcss_disable_dtg_and_ss_cb(void *data) @@ -139,6 +149,8 @@ static int dcss_clks_init(struct dcss_dev *dcss) {"pix", &dcss->pix_clk}, {"rtrm", &dcss->rtrm_clk}, {"dtrc", &dcss->dtrc_clk}, + {"pll_src", &dcss->pll_src_clk}, + {"pll_phy_ref", &dcss->pll_phy_ref_clk}, }; for (i = 0; i < ARRAY_SIZE(clks); i++) { @@ -160,6 +172,8 @@ static void dcss_clks_release(struct dcss_dev *dcss) devm_clk_put(dcss->dev, dcss->pix_clk); devm_clk_put(dcss->dev, dcss->axi_clk); devm_clk_put(dcss->dev, dcss->apb_clk); + devm_clk_put(dcss->dev, dcss->pll_src_clk); + devm_clk_put(dcss->dev, dcss->pll_phy_ref_clk); } struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output) @@ -257,7 +271,8 @@ int dcss_dev_suspend(struct device *dev) struct dcss_kms_dev *kms = container_of(ddev, struct dcss_kms_dev, base); int ret; - drm_bridge_connector_disable_hpd(kms->connector); + if (!dcss_drv_is_componentized(dev)) + drm_bridge_connector_disable_hpd(kms->connector); drm_mode_config_helper_suspend(ddev); @@ -292,7 +307,8 @@ int dcss_dev_resume(struct device *dev) drm_mode_config_helper_resume(ddev); - drm_bridge_connector_enable_hpd(kms->connector); + if (!dcss_drv_is_componentized(dev)) + drm_bridge_connector_enable_hpd(kms->connector); return 0; } diff --git a/drivers/gpu/drm/imx/dcss/dcss-dev.h b/drivers/gpu/drm/imx/dcss/dcss-dev.h index 1e58227..083edf6 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dev.h +++ b/drivers/gpu/drm/imx/dcss/dcss-dev.h @@ -93,6 +93,7 @@ struct dcss_dev { struct dcss_dev *dcss_drv_dev_to_dcss(struct device *dev); struct drm_device *dcss_drv_dev_to_drm(struct device *dev); +bool dcss_drv_is_componentized(struct device *dev); struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output); void dcss_dev_destroy(struct dcss_dev *dcss); int dcss_dev_runtime_suspend(struct device *dev); diff --git a/drivers/gpu/drm/imx/dcss/dcss-drv.c b/drivers/gpu/drm/imx/dcss/dcss-drv.c index 1c70f70..d6960da 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-drv.c +++ b/drivers/gpu/drm/imx/dcss/dcss-drv.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -16,6 +17,8 @@ struct dcss_drv { struct dcss_dev *dcss; struct dcss_kms_dev *kms; + + bool is_componentized; }; struct dcss_dev *dcss_drv_dev_to_dcss(struct device *dev) @@ -32,30 +35,24 @@ struct drm_device *dcss_drv_dev_to_drm(struct device *dev) return mdrv ? &mdrv->kms->base : NULL; } -static int dcss_drv_platform_probe(struct platform_device *pdev) +bool dcss_drv_is_componentized(struct device *dev) +{ + struct dcss_drv *mdrv = dev_get_drvdata(dev); + return mdrv->is_componentized; +} + +static int dcss_drv_init(struct device *dev, bool componentized) { - struct device *dev = &pdev->dev; - struct device_node *remote; struct dcss_drv *mdrv; int err = 0; - bool hdmi_output = true; - - if (!dev->of_node) - return -ENODEV; - - remote = of_graph_get_remote_node(dev->of_node, 0, 0); - if (!remote) - return -ENODEV; - - hdmi_output = !of_device_is_compatible(remote, "fsl,imx8mq-nwl-dsi"); - - of_node_put(remote); mdrv = kzalloc(sizeof(*mdrv), GFP_KERNEL); if (!mdrv) return -ENOMEM; - mdrv->dcss = dcss_dev_create(dev, hdmi_output); + mdrv->is_componentized = componentized; + + mdrv->dcss = dcss_dev_create(dev, componentized); if (IS_ERR(mdrv->dcss)) { err = PTR_ERR(mdrv->dcss); goto err; @@ -63,7 +60,7 @@ static int dcss_drv_platform_probe(struct platform_device *pdev) dev_set_drvdata(dev, mdrv); - mdrv->kms = dcss_kms_attach(mdrv->dcss); + mdrv->kms = dcss_kms_attach(mdrv->dcss, componentized); if (IS_ERR(mdrv->kms)) { err = PTR_ERR(mdrv->kms); goto dcss_shutoff; @@ -81,19 +78,73 @@ static int dcss_drv_platform_probe(struct platform_device *pdev) return err; } +static void dcss_drv_deinit(struct device *dev, bool componentized) +{ + struct dcss_drv *mdrv = dev_get_drvdata(dev); + + if (!mdrv) + return; + + dcss_kms_detach(mdrv->kms, componentized); + dcss_dev_destroy(mdrv->dcss); + + dev_set_drvdata(dev, NULL); + + kfree(mdrv); +} + +static int dcss_drv_bind(struct device *dev) +{ + return dcss_drv_init(dev, true); +} + +static void dcss_drv_unbind(struct device *dev) +{ + return dcss_drv_deinit(dev, true); +} + +static const struct component_master_ops dcss_master_ops = { + .bind = dcss_drv_bind, + .unbind = dcss_drv_unbind, +}; + +static int compare_of(struct device *dev, void *data) +{ + return dev->of_node == data; +} + +static int dcss_drv_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct component_match *match = NULL; + struct device_node *remote; + + if (!dev->of_node) + return -ENODEV; + + remote = of_graph_get_remote_node(dev->of_node, 0, 0); + if (!remote) + return -ENODEV; + + if (of_device_is_compatible(remote, "fsl,imx8mq-nwl-dsi")) { + of_node_put(remote); + return dcss_drv_init(dev, false); + } + + drm_of_component_match_add(dev, &match, compare_of, remote); + of_node_put(remote); + + return component_master_add_with_match(dev, &dcss_master_ops, match); +} + static int dcss_drv_platform_remove(struct platform_device *pdev) { struct dcss_drv *mdrv = dev_get_drvdata(&pdev->dev); - if (!mdrv) - return 0; - - dcss_kms_detach(mdrv->kms); - dcss_dev_destroy(mdrv->dcss); - - dev_set_drvdata(&pdev->dev, NULL); - - kfree(mdrv); + if (mdrv->is_componentized) + component_master_del(&pdev->dev, &dcss_master_ops); + else + dcss_drv_deinit(&pdev->dev, false); return 0; } diff --git a/drivers/gpu/drm/imx/dcss/dcss-dtg.c b/drivers/gpu/drm/imx/dcss/dcss-dtg.c index 30de005..c7a688b 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dtg.c +++ b/drivers/gpu/drm/imx/dcss/dcss-dtg.c @@ -83,6 +83,7 @@ struct dcss_dtg { u32 ctx_id; bool in_use; + bool hdmi_output; u32 dis_ulc_x; u32 dis_ulc_y; @@ -93,6 +94,9 @@ struct dcss_dtg { int ctxld_kick_irq; bool ctxld_kick_irq_en; + + struct clk *pll_src_clk; + struct clk *pll_phy_ref_clk; }; static void dcss_dtg_write(struct dcss_dtg *dtg, u32 val, u32 ofs) @@ -159,6 +163,7 @@ int dcss_dtg_init(struct dcss_dev *dcss, unsigned long dtg_base) dcss->dtg = dtg; dtg->dev = dcss->dev; dtg->ctxld = dcss->ctxld; + dtg->hdmi_output = dcss->hdmi_output; dtg->base_reg = ioremap(dtg_base, SZ_4K); if (!dtg->base_reg) { @@ -170,6 +175,9 @@ int dcss_dtg_init(struct dcss_dev *dcss, unsigned long dtg_base) dtg->base_ofs = dtg_base; dtg->ctx_id = CTX_DB; + dtg->pll_src_clk = dcss->pll_src_clk; + dtg->pll_phy_ref_clk = dcss->pll_phy_ref_clk; + dtg->alpha = 255; dtg->control_status |= OVL_DATA_MODE | BLENDER_VIDEO_ALPHA_SEL | @@ -220,8 +228,22 @@ void dcss_dtg_sync_set(struct dcss_dtg *dtg, struct videomode *vm) dis_lrc_y = vm->vsync_len + vm->vfront_porch + vm->vback_porch + vm->vactive - 1; + if (dtg->hdmi_output) { + int err; + + clk_disable_unprepare(dtg->pll_src_clk); + err = clk_set_parent(dtg->pll_src_clk, dtg->pll_phy_ref_clk); + if (err < 0) + dev_warn(dtg->dev, "clk_set_parent() returned %d", err); + clk_prepare_enable(dtg->pll_src_clk); + } + clk_disable_unprepare(dcss->pix_clk); - clk_set_rate(dcss->pix_clk, vm->pixelclock); + if (dtg->hdmi_output) { + clk_set_rate(dcss->pix_clk, vm->pixelclock); + } else { + clk_set_rate(dcss->pix_clk, (vm->pixelclock * 700)/1000); + } clk_prepare_enable(dcss->pix_clk); actual_clk = clk_get_rate(dcss->pix_clk); @@ -406,4 +428,3 @@ bool dcss_dtg_vblank_irq_valid(struct dcss_dtg *dtg) { return !!(dcss_readl(dtg->base_reg + DCSS_DTG_INT_STATUS) & LINE1_IRQ); } - diff --git a/drivers/gpu/drm/imx/dcss/dcss-kms.c b/drivers/gpu/drm/imx/dcss/dcss-kms.c index b4f82eb..9bedf12 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-kms.c +++ b/drivers/gpu/drm/imx/dcss/dcss-kms.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "dcss-dev.h" #include "dcss-kms.h" @@ -69,6 +70,7 @@ static int dcss_kms_bridge_connector_init(struct dcss_kms_dev *kms) struct drm_crtc *crtc = (struct drm_crtc *)&kms->crtc; struct drm_panel *panel; struct drm_bridge *bridge; + struct drm_connector_list_iter iter; int ret; ret = drm_of_find_panel_or_bridge(ddev->dev->of_node, 0, 0, @@ -91,23 +93,23 @@ static int dcss_kms_bridge_connector_init(struct dcss_kms_dev *kms) return ret; } - ret = drm_bridge_attach(encoder, bridge, NULL, - DRM_BRIDGE_ATTACH_NO_CONNECTOR); + ret = drm_bridge_attach(encoder, bridge, NULL, 0); if (ret < 0) return ret; - kms->connector = drm_bridge_connector_init(ddev, encoder); - if (IS_ERR(kms->connector)) { - dev_err(ddev->dev, "Unable to create bridge connector.\n"); - return PTR_ERR(kms->connector); - } + /* + * FIXME: This hack to look up the connector is copied from mxsfb. + */ + drm_connector_list_iter_begin(ddev, &iter); + kms->connector = drm_connector_list_iter_next(&iter); + drm_connector_list_iter_end(&iter); drm_connector_attach_encoder(kms->connector, encoder); return 0; } -struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss) +struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss, bool componentized) { struct dcss_kms_dev *kms; struct drm_device *drm; @@ -130,18 +132,29 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss) if (ret) goto cleanup_mode_config; - ret = dcss_kms_bridge_connector_init(kms); - if (ret) - goto cleanup_mode_config; + if (!componentized) { + ret = dcss_kms_bridge_connector_init(kms); + if (ret) + goto cleanup_mode_config; + } ret = dcss_crtc_init(crtc, drm); if (ret) goto cleanup_mode_config; + if (componentized) { + ret = component_bind_all(dcss->dev, kms); + if (ret) + goto cleanup_crtc; + } + drm_mode_config_reset(drm); drm_kms_helper_poll_init(drm); + if (!componentized) + drm_bridge_connector_enable_hpd(kms->connector); + ret = drm_dev_register(drm, 0); if (ret) goto cleanup_crtc; @@ -151,7 +164,8 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss) return kms; cleanup_crtc: - drm_bridge_connector_disable_hpd(kms->connector); + if (!componentized) + drm_bridge_connector_disable_hpd(kms->connector); drm_kms_helper_poll_fini(drm); dcss_crtc_deinit(crtc, drm); @@ -162,16 +176,20 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss) return ERR_PTR(ret); } -void dcss_kms_detach(struct dcss_kms_dev *kms) +void dcss_kms_detach(struct dcss_kms_dev *kms, bool componentized) { struct drm_device *drm = &kms->base; + struct dcss_dev *dcss = drm->dev_private; drm_dev_unregister(drm); - drm_bridge_connector_disable_hpd(kms->connector); + if (!componentized) + drm_bridge_connector_disable_hpd(kms->connector); drm_kms_helper_poll_fini(drm); drm_atomic_helper_shutdown(drm); drm_crtc_vblank_off(&kms->crtc.base); drm_mode_config_cleanup(drm); dcss_crtc_deinit(&kms->crtc, drm); + if (componentized) + component_unbind_all(dcss->dev, drm); drm->dev_private = NULL; } diff --git a/drivers/gpu/drm/imx/dcss/dcss-kms.h b/drivers/gpu/drm/imx/dcss/dcss-kms.h index dfe5dd9..c3e0d06 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-kms.h +++ b/drivers/gpu/drm/imx/dcss/dcss-kms.h @@ -32,8 +32,8 @@ struct dcss_kms_dev { struct drm_connector *connector; }; -struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss); -void dcss_kms_detach(struct dcss_kms_dev *kms); +struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss, bool componetized); +void dcss_kms_detach(struct dcss_kms_dev *kms, bool componetized); int dcss_crtc_init(struct dcss_crtc *crtc, struct drm_device *drm); void dcss_crtc_deinit(struct dcss_crtc *crtc, struct drm_device *drm); struct dcss_plane *dcss_plane_init(struct drm_device *drm, diff --git a/include/drm/bridge/cdns-mhdp-cbs.h b/include/drm/bridge/cdns-mhdp-cbs.h new file mode 100644 index 0000000..ed67e18 --- /dev/null +++ b/include/drm/bridge/cdns-mhdp-cbs.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Cadence MHDP DP bridge callbacks. + * + * Copyright: 2018 Cadence Design Systems, Inc. + * + * Author: Piotr Sroka + */ + +#ifndef CDNS_MHDP_CBS_H +#define CDNS_MHDP_CBS_H + +#include + +struct cdns_mhdp_mst_cbs_funcs { + struct drm_encoder *(*create_mst_encoder)(void *priv_data, + struct drm_bridge *bridge); + void (*destroy_mst_encoder)(void *priv_data, struct drm_bridge *bridge); +}; + +struct cdns_mhdp_mst_cbs { + struct cdns_mhdp_mst_cbs_funcs funcs; + void *priv_data; +}; + +int mhdp_bridge_attach_mst_cbs(struct drm_bridge *bridge, + struct cdns_mhdp_mst_cbs *cbs); + +#endif diff --git a/include/drm/bridge/cdns-mhdp-common.h b/include/drm/bridge/cdns-mhdp-common.h new file mode 100644 index 0000000..77a99db --- /dev/null +++ b/include/drm/bridge/cdns-mhdp-common.h @@ -0,0 +1,812 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: Chris Zhong + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef CDNS_MHDP_COMMON_H_ +#define CDNS_MHDP_COMMON_H_ + +#include +#include +#include +#include +#include +#include +#include + +#define ADDR_IMEM 0x10000 +#define ADDR_DMEM 0x20000 +#define ADDR_PHY_AFE 0x80000 + +/* APB CFG addr */ +#define APB_CTRL 0 +#define XT_INT_CTRL 0x04 +#define MAILBOX_FULL_ADDR 0x08 +#define MAILBOX_EMPTY_ADDR 0x0c +#define MAILBOX0_WR_DATA 0x10 +#define MAILBOX0_RD_DATA 0x14 +#define KEEP_ALIVE 0x18 +#define VER_L 0x1c +#define VER_H 0x20 +#define VER_LIB_L_ADDR 0x24 +#define VER_LIB_H_ADDR 0x28 +#define SW_DEBUG_L 0x2c +#define SW_DEBUG_H 0x30 +#define MAILBOX_INT_MASK 0x34 +#define MAILBOX_INT_STATUS 0x38 +#define SW_CLK_L 0x3c +#define SW_CLK_H 0x40 +#define SW_EVENTS0 0x44 +#define SW_EVENTS1 0x48 +#define SW_EVENTS2 0x4c +#define SW_EVENTS3 0x50 +#define XT_OCD_CTRL 0x60 +#define APB_INT_MASK 0x6c +#define APB_STATUS_MASK 0x70 + +/* audio decoder addr */ +#define AUDIO_SRC_CNTL 0x30000 +#define AUDIO_SRC_CNFG 0x30004 +#define COM_CH_STTS_BITS 0x30008 +#define STTS_BIT_CH(x) (0x3000c + ((x) << 2)) +#define SPDIF_CTRL_ADDR 0x3004c +#define SPDIF_CH1_CS_3100_ADDR 0x30050 +#define SPDIF_CH1_CS_6332_ADDR 0x30054 +#define SPDIF_CH1_CS_9564_ADDR 0x30058 +#define SPDIF_CH1_CS_12796_ADDR 0x3005c +#define SPDIF_CH1_CS_159128_ADDR 0x30060 +#define SPDIF_CH1_CS_191160_ADDR 0x30064 +#define SPDIF_CH2_CS_3100_ADDR 0x30068 +#define SPDIF_CH2_CS_6332_ADDR 0x3006c +#define SPDIF_CH2_CS_9564_ADDR 0x30070 +#define SPDIF_CH2_CS_12796_ADDR 0x30074 +#define SPDIF_CH2_CS_159128_ADDR 0x30078 +#define SPDIF_CH2_CS_191160_ADDR 0x3007c +#define SMPL2PKT_CNTL 0x30080 +#define SMPL2PKT_CNFG 0x30084 +#define FIFO_CNTL 0x30088 +#define FIFO_STTS 0x3008c + +/* source pif addr */ +#define SOURCE_PIF_WR_ADDR 0x30800 +#define SOURCE_PIF_WR_REQ 0x30804 +#define SOURCE_PIF_RD_ADDR 0x30808 +#define SOURCE_PIF_RD_REQ 0x3080c +#define SOURCE_PIF_DATA_WR 0x30810 +#define SOURCE_PIF_DATA_RD 0x30814 +#define SOURCE_PIF_FIFO1_FLUSH 0x30818 +#define SOURCE_PIF_FIFO2_FLUSH 0x3081c +#define SOURCE_PIF_STATUS 0x30820 +#define SOURCE_PIF_INTERRUPT_SOURCE 0x30824 +#define SOURCE_PIF_INTERRUPT_MASK 0x30828 +#define SOURCE_PIF_PKT_ALLOC_REG 0x3082c +#define SOURCE_PIF_PKT_ALLOC_WR_EN 0x30830 +#define SOURCE_PIF_SW_RESET 0x30834 + +/* bellow registers need access by mailbox */ +/* source phy comp */ +#define PHY_DATA_SEL 0x0818 +#define LANES_CONFIG 0x0814 + +/* source car addr */ +#define SOURCE_HDTX_CAR 0x0900 +#define SOURCE_DPTX_CAR 0x0904 +#define SOURCE_PHY_CAR 0x0908 +#define SOURCE_CEC_CAR 0x090c +#define SOURCE_CBUS_CAR 0x0910 +#define SOURCE_PKT_CAR 0x0918 +#define SOURCE_AIF_CAR 0x091c +#define SOURCE_CIPHER_CAR 0x0920 +#define SOURCE_CRYPTO_CAR 0x0924 + +/* mhdp tx_top_comp */ +#define SCHEDULER_H_SIZE 0x1000 +#define SCHEDULER_V_SIZE 0x1004 +#define HDTX_SIGNAL_FRONT_WIDTH 0x100c +#define HDTX_SIGNAL_SYNC_WIDTH 0x1010 +#define HDTX_SIGNAL_BACK_WIDTH 0x1014 +#define HDTX_CONTROLLER 0x1018 +#define HDTX_HPD 0x1020 +#define HDTX_CLOCK_REG_0 0x1024 +#define HDTX_CLOCK_REG_1 0x1028 + +/* clock meters addr */ +#define CM_CTRL 0x0a00 +#define CM_I2S_CTRL 0x0a04 +#define CM_SPDIF_CTRL 0x0a08 +#define CM_VID_CTRL 0x0a0c +#define CM_LANE_CTRL 0x0a10 +#define I2S_NM_STABLE 0x0a14 +#define I2S_NCTS_STABLE 0x0a18 +#define SPDIF_NM_STABLE 0x0a1c +#define SPDIF_NCTS_STABLE 0x0a20 +#define NMVID_MEAS_STABLE 0x0a24 +#define I2S_MEAS 0x0a40 +#define SPDIF_MEAS 0x0a80 +#define NMVID_MEAS 0x0ac0 + +/* source vif addr */ +#define BND_HSYNC2VSYNC 0x0b00 +#define HSYNC2VSYNC_F1_L1 0x0b04 +#define HSYNC2VSYNC_F2_L1 0x0b08 +#define HSYNC2VSYNC_STATUS 0x0b0c +#define HSYNC2VSYNC_POL_CTRL 0x0b10 + +/* dptx phy addr */ +#define DP_TX_PHY_CONFIG_REG 0x2000 +#define DP_TX_PHY_SW_RESET 0x2004 +#define DP_TX_PHY_SCRAMBLER_SEED 0x2008 +#define DP_TX_PHY_TRAINING_01_04 0x200c +#define DP_TX_PHY_TRAINING_05_08 0x2010 +#define DP_TX_PHY_TRAINING_09_10 0x2014 +#define TEST_COR 0x23fc + +/* dptx hpd addr */ +#define HPD_IRQ_DET_MIN_TIMER 0x2100 +#define HPD_IRQ_DET_MAX_TIMER 0x2104 +#define HPD_UNPLGED_DET_MIN_TIMER 0x2108 +#define HPD_STABLE_TIMER 0x210c +#define HPD_FILTER_TIMER 0x2110 +#define HPD_EVENT_MASK 0x211c +#define HPD_EVENT_DET 0x2120 + +/* dpyx framer addr */ +#define DP_FRAMER_GLOBAL_CONFIG 0x2200 +#define DP_SW_RESET 0x2204 +#define DP_FRAMER_TU 0x2208 +#define DP_FRAMER_PXL_REPR 0x220c +#define DP_FRAMER_SP 0x2210 +#define AUDIO_PACK_CONTROL 0x2214 +#define DP_VC_TABLE(x) (0x2218 + ((x) << 2)) +#define DP_VB_ID 0x2258 +#define DP_MTPH_LVP_CONTROL 0x225c +#define DP_MTPH_SYMBOL_VALUES 0x2260 +#define DP_MTPH_ECF_CONTROL 0x2264 +#define DP_MTPH_ACT_CONTROL 0x2268 +#define DP_MTPH_STATUS 0x226c +#define DP_INTERRUPT_SOURCE 0x2270 +#define DP_INTERRUPT_MASK 0x2274 +#define DP_FRONT_BACK_PORCH 0x2278 +#define DP_BYTE_COUNT 0x227c + +/* dptx stream addr */ +#define MSA_HORIZONTAL_0 0x2280 +#define MSA_HORIZONTAL_1 0x2284 +#define MSA_VERTICAL_0 0x2288 +#define MSA_VERTICAL_1 0x228c +#define MSA_MISC 0x2290 +#define STREAM_CONFIG 0x2294 +#define AUDIO_PACK_STATUS 0x2298 +#define VIF_STATUS 0x229c +#define PCK_STUFF_STATUS_0 0x22a0 +#define PCK_STUFF_STATUS_1 0x22a4 +#define INFO_PACK_STATUS 0x22a8 +#define RATE_GOVERNOR_STATUS 0x22ac +#define DP_HORIZONTAL 0x22b0 +#define DP_VERTICAL_0 0x22b4 +#define DP_VERTICAL_1 0x22b8 +#define DP_BLOCK_SDP 0x22bc + +/* dptx glbl addr */ +#define DPTX_LANE_EN 0x2300 +#define DPTX_ENHNCD 0x2304 +#define DPTX_INT_MASK 0x2308 +#define DPTX_INT_STATUS 0x230c + +/* dp aux addr */ +#define DP_AUX_HOST_CONTROL 0x2800 +#define DP_AUX_INTERRUPT_SOURCE 0x2804 +#define DP_AUX_INTERRUPT_MASK 0x2808 +#define DP_AUX_SWAP_INVERSION_CONTROL 0x280c +#define DP_AUX_SEND_NACK_TRANSACTION 0x2810 +#define DP_AUX_CLEAR_RX 0x2814 +#define DP_AUX_CLEAR_TX 0x2818 +#define DP_AUX_TIMER_STOP 0x281c +#define DP_AUX_TIMER_CLEAR 0x2820 +#define DP_AUX_RESET_SW 0x2824 +#define DP_AUX_DIVIDE_2M 0x2828 +#define DP_AUX_TX_PREACHARGE_LENGTH 0x282c +#define DP_AUX_FREQUENCY_1M_MAX 0x2830 +#define DP_AUX_FREQUENCY_1M_MIN 0x2834 +#define DP_AUX_RX_PRE_MIN 0x2838 +#define DP_AUX_RX_PRE_MAX 0x283c +#define DP_AUX_TIMER_PRESET 0x2840 +#define DP_AUX_NACK_FORMAT 0x2844 +#define DP_AUX_TX_DATA 0x2848 +#define DP_AUX_RX_DATA 0x284c +#define DP_AUX_TX_STATUS 0x2850 +#define DP_AUX_RX_STATUS 0x2854 +#define DP_AUX_RX_CYCLE_COUNTER 0x2858 +#define DP_AUX_MAIN_STATES 0x285c +#define DP_AUX_MAIN_TIMER 0x2860 +#define DP_AUX_AFE_OUT 0x2864 + +/* crypto addr */ +#define CRYPTO_HDCP_REVISION 0x5800 +#define HDCP_CRYPTO_CONFIG 0x5804 +#define CRYPTO_INTERRUPT_SOURCE 0x5808 +#define CRYPTO_INTERRUPT_MASK 0x580c +#define CRYPTO22_CONFIG 0x5818 +#define CRYPTO22_STATUS 0x581c +#define SHA_256_DATA_IN 0x583c +#define SHA_256_DATA_OUT_(x) (0x5850 + ((x) << 2)) +#define AES_32_KEY_(x) (0x5870 + ((x) << 2)) +#define AES_32_DATA_IN 0x5880 +#define AES_32_DATA_OUT_(x) (0x5884 + ((x) << 2)) +#define CRYPTO14_CONFIG 0x58a0 +#define CRYPTO14_STATUS 0x58a4 +#define CRYPTO14_PRNM_OUT 0x58a8 +#define CRYPTO14_KM_0 0x58ac +#define CRYPTO14_KM_1 0x58b0 +#define CRYPTO14_AN_0 0x58b4 +#define CRYPTO14_AN_1 0x58b8 +#define CRYPTO14_YOUR_KSV_0 0x58bc +#define CRYPTO14_YOUR_KSV_1 0x58c0 +#define CRYPTO14_MI_0 0x58c4 +#define CRYPTO14_MI_1 0x58c8 +#define CRYPTO14_TI_0 0x58cc +#define CRYPTO14_KI_0 0x58d0 +#define CRYPTO14_KI_1 0x58d4 +#define CRYPTO14_BLOCKS_NUM 0x58d8 +#define CRYPTO14_KEY_MEM_DATA_0 0x58dc +#define CRYPTO14_KEY_MEM_DATA_1 0x58e0 +#define CRYPTO14_SHA1_MSG_DATA 0x58e4 +#define CRYPTO14_SHA1_V_VALUE_(x) (0x58e8 + ((x) << 2)) +#define TRNG_CTRL 0x58fc +#define TRNG_DATA_RDY 0x5900 +#define TRNG_DATA 0x5904 + +/* cipher addr */ +#define HDCP_REVISION 0x60000 +#define INTERRUPT_SOURCE 0x60004 +#define INTERRUPT_MASK 0x60008 +#define HDCP_CIPHER_CONFIG 0x6000c +#define AES_128_KEY_0 0x60010 +#define AES_128_KEY_1 0x60014 +#define AES_128_KEY_2 0x60018 +#define AES_128_KEY_3 0x6001c +#define AES_128_RANDOM_0 0x60020 +#define AES_128_RANDOM_1 0x60024 +#define CIPHER14_KM_0 0x60028 +#define CIPHER14_KM_1 0x6002c +#define CIPHER14_STATUS 0x60030 +#define CIPHER14_RI_PJ_STATUS 0x60034 +#define CIPHER_MODE 0x60038 +#define CIPHER14_AN_0 0x6003c +#define CIPHER14_AN_1 0x60040 +#define CIPHER22_AUTH 0x60044 +#define CIPHER14_R0_DP_STATUS 0x60048 +#define CIPHER14_BOOTSTRAP 0x6004c + +#define DPTX_FRMR_DATA_CLK_RSTN_EN BIT(11) +#define DPTX_FRMR_DATA_CLK_EN BIT(10) +#define DPTX_PHY_DATA_RSTN_EN BIT(9) +#define DPTX_PHY_DATA_CLK_EN BIT(8) +#define DPTX_PHY_CHAR_RSTN_EN BIT(7) +#define DPTX_PHY_CHAR_CLK_EN BIT(6) +#define SOURCE_AUX_SYS_CLK_RSTN_EN BIT(5) +#define SOURCE_AUX_SYS_CLK_EN BIT(4) +#define DPTX_SYS_CLK_RSTN_EN BIT(3) +#define DPTX_SYS_CLK_EN BIT(2) +#define CFG_DPTX_VIF_CLK_RSTN_EN BIT(1) +#define CFG_DPTX_VIF_CLK_EN BIT(0) + +#define SOURCE_PHY_RSTN_EN BIT(1) +#define SOURCE_PHY_CLK_EN BIT(0) + +#define SOURCE_PKT_SYS_RSTN_EN BIT(3) +#define SOURCE_PKT_SYS_CLK_EN BIT(2) +#define SOURCE_PKT_DATA_RSTN_EN BIT(1) +#define SOURCE_PKT_DATA_CLK_EN BIT(0) + +#define SPDIF_CDR_CLK_RSTN_EN BIT(5) +#define SPDIF_CDR_CLK_EN BIT(4) +#define SOURCE_AIF_SYS_RSTN_EN BIT(3) +#define SOURCE_AIF_SYS_CLK_EN BIT(2) +#define SOURCE_AIF_CLK_RSTN_EN BIT(1) +#define SOURCE_AIF_CLK_EN BIT(0) + +#define SOURCE_CIPHER_SYSTEM_CLK_RSTN_EN BIT(3) +#define SOURCE_CIPHER_SYS_CLK_EN BIT(2) +#define SOURCE_CIPHER_CHAR_CLK_RSTN_EN BIT(1) +#define SOURCE_CIPHER_CHAR_CLK_EN BIT(0) + +#define SOURCE_CRYPTO_SYS_CLK_RSTN_EN BIT(1) +#define SOURCE_CRYPTO_SYS_CLK_EN BIT(0) + +#define APB_IRAM_PATH BIT(2) +#define APB_DRAM_PATH BIT(1) +#define APB_XT_RESET BIT(0) + +#define MAILBOX_INT_MASK_BIT BIT(1) +#define PIF_INT_MASK_BIT BIT(0) +#define ALL_INT_MASK 3 + +/* mailbox */ +#define MB_OPCODE_ID 0 +#define MB_MODULE_ID 1 +#define MB_SIZE_MSB_ID 2 +#define MB_SIZE_LSB_ID 3 +#define MB_DATA_ID 4 + +#define MB_MODULE_ID_DP_TX 0x01 +#define MB_MODULE_ID_HDMI_TX 0x03 +#define MB_MODULE_ID_HDCP_TX 0x07 +#define MB_MODULE_ID_HDCP_RX 0x08 +#define MB_MODULE_ID_HDCP_GENERAL 0x09 +#define MB_MODULE_ID_GENERAL 0x0A + +/* general opcode */ +#define GENERAL_MAIN_CONTROL 0x01 +#define GENERAL_TEST_ECHO 0x02 +#define GENERAL_BUS_SETTINGS 0x03 +#define GENERAL_TEST_ACCESS 0x04 +#define GENERAL_WRITE_REGISTER 0x05 +#define GENERAL_WRITE_FIELD 0x06 +#define GENERAL_READ_REGISTER 0x07 +#define GENERAL_GET_HPD_STATE 0x11 + +/* DPTX opcode */ +#define DPTX_SET_POWER_MNG 0x00 +#define DPTX_SET_HOST_CAPABILITIES 0x01 +#define DPTX_GET_EDID 0x02 +#define DPTX_READ_DPCD 0x03 +#define DPTX_WRITE_DPCD 0x04 +#define DPTX_ENABLE_EVENT 0x05 +#define DPTX_WRITE_REGISTER 0x06 +#define DPTX_READ_REGISTER 0x07 +#define DPTX_WRITE_FIELD 0x08 +#define DPTX_TRAINING_CONTROL 0x09 +#define DPTX_READ_EVENT 0x0a +#define DPTX_READ_LINK_STAT 0x0b +#define DPTX_SET_VIDEO 0x0c +#define DPTX_SET_AUDIO 0x0d +#define DPTX_GET_LAST_AUX_STAUS 0x0e +#define DPTX_SET_LINK_BREAK_POINT 0x0f +#define DPTX_FORCE_LANES 0x10 +#define DPTX_HPD_STATE 0x11 +#define DPTX_ADJUST_LT 0x12 + +/* HDMI TX opcode */ +#define HDMI_TX_READ 0x00 +#define HDMI_TX_WRITE 0x01 +#define HDMI_TX_UPDATE_READ 0x02 +#define HDMI_TX_EDID 0x03 +#define HDMI_TX_EVENTS 0x04 +#define HDMI_TX_HPD_STATUS 0x05 +#define HDMI_TX_DEBUG_ECHO 0xAA +#define HDMI_TX_TEST 0xBB +#define HDMI_TX_EDID_INTERNAL 0xF0 + +#define FW_STANDBY 0 +#define FW_ACTIVE 1 + +#define MHDP_EVENT_ENABLE_HPD BIT(0) +#define MHDP_EVENT_ENABLE_TRAINING BIT(1) + +#define LINK_TRAINING_NOT_ACTIVE 0 +#define LINK_TRAINING_RUN 1 +#define LINK_TRAINING_RESTART 2 + +#define CONTROL_VIDEO_IDLE 0 +#define CONTROL_VIDEO_VALID 1 + +#define TU_CNT_RST_EN BIT(15) +#define VIF_BYPASS_INTERLACE BIT(13) +#define INTERLACE_FMT_DET BIT(12) +#define INTERLACE_DTCT_WIN 0x20 + +#define DP_FRAMER_SP_INTERLACE_EN BIT(2) +#define DP_FRAMER_SP_HSP BIT(1) +#define DP_FRAMER_SP_VSP BIT(0) + +/* capability */ +#define AUX_HOST_INVERT 3 +#define FAST_LT_SUPPORT 1 +#define FAST_LT_NOT_SUPPORT 0 +#define LANE_MAPPING_NORMAL 0x1b +#define LANE_MAPPING_FLIPPED 0xe4 +#define ENHANCED 1 +#define SCRAMBLER_EN BIT(4) + +#define FULL_LT_STARTED BIT(0) +#define FASE_LT_STARTED BIT(1) +#define CLK_RECOVERY_FINISHED BIT(2) +#define EQ_PHASE_FINISHED BIT(3) +#define FASE_LT_START_FINISHED BIT(4) +#define CLK_RECOVERY_FAILED BIT(5) +#define EQ_PHASE_FAILED BIT(6) +#define FASE_LT_FAILED BIT(7) + +#define DPTX_HPD_EVENT BIT(0) +#define DPTX_TRAINING_EVENT BIT(1) +#define HDCP_TX_STATUS_EVENT BIT(4) +#define HDCP2_TX_IS_KM_STORED_EVENT BIT(5) +#define HDCP2_TX_STORE_KM_EVENT BIT(6) +#define HDCP_TX_IS_RECEIVER_ID_VALID_EVENT BIT(7) + +#define TU_SIZE 30 +#define CDNS_DP_MAX_LINK_RATE 540000 + +#define F_HDMI_ENCODING(x) (((x) & ((1 << 2) - 1)) << 16) +#define F_VIF_DATA_WIDTH(x) (((x) & ((1 << 2) - 1)) << 2) +#define F_HDMI_MODE(x) (((x) & ((1 << 2) - 1)) << 0) +#define F_GCP_EN(x) (((x) & ((1 << 1) - 1)) << 12) +#define F_DATA_EN(x) (((x) & ((1 << 1) - 1)) << 15) +#define F_HDMI2_PREAMBLE_EN(x) (((x) & ((1 << 1) - 1)) << 18) +#define F_PIC_3D(x) (((x) & ((1 << 4) - 1)) << 7) +#define F_BCH_EN(x) (((x) & ((1 << 1) - 1)) << 11) +#define F_SOURCE_PHY_MHDP_SEL(x) (((x) & ((1 << 2) - 1)) << 3) +#define F_HPD_VALID_WIDTH(x) (((x) & ((1 << 12) - 1)) << 0) +#define F_HPD_GLITCH_WIDTH(x) (((x) & ((1 << 8) - 1)) << 12) +#define F_HDMI2_CTRL_IL_MODE(x) (((x) & ((1 << 1) - 1)) << 19) +#define F_SOURCE_PHY_LANE0_SWAP(x) (((x) & ((1 << 2) - 1)) << 0) +#define F_SOURCE_PHY_LANE1_SWAP(x) (((x) & ((1 << 2) - 1)) << 2) +#define F_SOURCE_PHY_LANE2_SWAP(x) (((x) & ((1 << 2) - 1)) << 4) +#define F_SOURCE_PHY_LANE3_SWAP(x) (((x) & ((1 << 2) - 1)) << 6) +#define F_SOURCE_PHY_COMB_BYPASS(x) (((x) & ((1 << 1) - 1)) << 21) +#define F_SOURCE_PHY_20_10(x) (((x) & ((1 << 1) - 1)) << 22) +#define F_PKT_ALLOC_ADDRESS(x) (((x) & ((1 << 4) - 1)) << 0) +#define F_ACTIVE_IDLE_TYPE(x) (((x) & ((1 << 1) - 1)) << 17) +#define F_FIFO1_FLUSH(x) (((x) & ((1 << 1) - 1)) << 0) +#define F_PKT_ALLOC_WR_EN(x) (((x) & ((1 << 1) - 1)) << 0) +#define F_DATA_WR(x) (x) +#define F_WR_ADDR(x) (((x) & ((1 << 4) - 1)) << 0) +#define F_HOST_WR(x) (((x) & ((1 << 1) - 1)) << 0) +#define F_TYPE_VALID(x) (((x) & ((1 << 1) - 1)) << 16) +#define F_PACKET_TYPE(x) (((x) & ((1 << 8) - 1)) << 8) + +/* audio */ +#define AUDIO_PACK_EN BIT(8) +#define SAMPLING_FREQ(x) (((x) & 0xf) << 16) +#define ORIGINAL_SAMP_FREQ(x) (((x) & 0xf) << 24) +#define SYNC_WR_TO_CH_ZERO BIT(1) +#define I2S_DEC_START BIT(1) +#define AUDIO_SW_RST BIT(0) +#define SMPL2PKT_EN BIT(1) +#define MAX_NUM_CH(x) (((x) & 0x1f) - 1) +#define NUM_OF_I2S_PORTS(x) ((((x) / 2 - 1) & 0x3) << 5) +#define AUDIO_TYPE_LPCM (2 << 7) +#define CFG_SUB_PCKT_NUM(x) ((((x) - 1) & 0x7) << 11) +#define AUDIO_CH_NUM(x) ((((x) - 1) & 0x1f) << 2) +#define TRANS_SMPL_WIDTH_16 0 +#define TRANS_SMPL_WIDTH_24 BIT(11) +#define TRANS_SMPL_WIDTH_32 (2 << 11) +#define I2S_DEC_PORT_EN(x) (((x) & 0xf) << 17) +#define SPDIF_ENABLE BIT(21) +#define SPDIF_AVG_SEL BIT(20) +#define SPDIF_JITTER_BYPASS BIT(19) +#define SPDIF_FIFO_MID_RANGE(x) (((x) & 0xff) << 11) +#define SPDIF_JITTER_THRSH(x) (((x) & 0xff) << 3) +#define SPDIF_JITTER_AVG_WIN(x) ((x) & 0x7) + +/* Reference cycles when using lane clock as reference */ +#define LANE_REF_CYC 0x8000 + +#define HOTPLUG_DEBOUNCE_MS 200 + +#define IRQ_IN 0 +#define IRQ_OUT 1 +#define IRQ_NUM 2 + +#define cdns_mhdp_plat_call(mhdp, operation) \ + (!(mhdp) ? -ENODEV : (((mhdp)->plat_data && (mhdp)->plat_data->operation) ? \ + (mhdp)->plat_data->operation(mhdp) : ENOIOCTLCMD)) + +/* bus access type */ +enum { + BUS_TYPE_NORMAL_APB = 0, + BUS_TYPE_NORMAL_SAPB = 1, + BUS_TYPE_LOW4K_APB = 2, + BUS_TYPE_LOW4K_SAPB = 3, +}; + +enum voltage_swing_level { + VOLTAGE_LEVEL_0, + VOLTAGE_LEVEL_1, + VOLTAGE_LEVEL_2, + VOLTAGE_LEVEL_3, +}; + +enum pre_emphasis_level { + PRE_EMPHASIS_LEVEL_0, + PRE_EMPHASIS_LEVEL_1, + PRE_EMPHASIS_LEVEL_2, + PRE_EMPHASIS_LEVEL_3, +}; + +enum pattern_set { + PTS1 = BIT(0), + PTS2 = BIT(1), + PTS3 = BIT(2), + PTS4 = BIT(3), + DP_NONE = BIT(4) +}; + +enum vic_color_depth { + BCS_6 = 0x1, + BCS_8 = 0x2, + BCS_10 = 0x4, + BCS_12 = 0x8, + BCS_16 = 0x10, +}; + +enum vic_bt_type { + BT_601 = 0x0, + BT_709 = 0x1, +}; + +enum audio_format { + AFMT_I2S = 0, + AFMT_SPDIF_INT = 1, + AFMT_SPDIF_EXT = 2, + AFMT_UNUSED, +}; + +enum { + MODE_DVI, + MODE_HDMI_1_4, + MODE_HDMI_2_0, +}; + +struct audio_info { + enum audio_format format; + int sample_rate; + int channels; + int sample_width; + int connector_type; +}; + +enum vic_pxl_encoding_format { + PXL_RGB = 0x1, + YCBCR_4_4_4 = 0x2, + YCBCR_4_2_2 = 0x4, + YCBCR_4_2_0 = 0x8, + Y_ONLY = 0x10, +}; + +struct video_info { + bool h_sync_polarity; + bool v_sync_polarity; + bool interlaced; + int color_depth; + enum vic_pxl_encoding_format color_fmt; +}; + +struct cdns_mhdp_host { + unsigned int link_rate; + u8 lanes_cnt; + u8 volt_swing; + u8 pre_emphasis; + u8 pattern_supp; + u8 fast_link; + u8 lane_mapping; + u8 enhanced; +}; + +struct cdns_mhdp_sink { + unsigned int link_rate; + u8 lanes_cnt; + u8 pattern_supp; + u8 fast_link; + u8 enhanced; +}; + +struct cdns_mhdp_bridge; +struct cdns_mhdp_connector; + +struct cdns_mhdp_bridge { + struct cdns_mhdp_device *mhdp; + struct drm_bridge base; + int pbn; + int8_t stream_id; + struct cdns_mhdp_connector *connector; + bool is_active; +}; + +struct cdns_mhdp_connector { + struct drm_connector base; + bool is_mst_connector; + struct drm_dp_mst_port *port; + struct cdns_mhdp_bridge *bridge; +}; + +struct cdns_mhdp_cec { + struct cec_adapter *adap; + struct device *dev; + struct mutex lock; + + struct cec_msg msg; + struct task_struct *cec_worker; +}; + +struct cdns_plat_data { + /* Vendor PHY support */ + int (*bind)(struct platform_device *pdev, + struct drm_encoder *encoder, + struct cdns_mhdp_device *mhdp); + void (*unbind)(struct device *dev); + + void (*plat_init)(struct cdns_mhdp_device *mhdp); + void (*plat_deinit)(struct cdns_mhdp_device *mhdp); + + int (*phy_set)(struct cdns_mhdp_device *mhdp); + bool (*phy_video_valid)(struct cdns_mhdp_device *mhdp); + int (*firmware_init)(struct cdns_mhdp_device *mhdp); + void (*pclk_rate)(struct cdns_mhdp_device *mhdp); + + int (*suspend)(struct cdns_mhdp_device *mhdp); + int (*resume)(struct cdns_mhdp_device *mhdp); + + int (*power_on)(struct cdns_mhdp_device *mhdp); + int (*power_off)(struct cdns_mhdp_device *mhdp); + + int bus_type; + int video_format; + char is_dp; + char *plat_name; +}; + +struct drm_dp_link { + unsigned char revision; + unsigned int rate; + unsigned int num_lanes; + unsigned long capabilities; +}; + +struct cdns_mhdp_device { + void __iomem *regs_base; + void __iomem *regs_sec; + + int bus_type; + + struct device *dev; + + struct cdns_mhdp_connector connector; + struct clk *spdif_clk; + struct reset_control *spdif_rst; + + struct platform_device *audio_pdev; + struct audio_info audio_info; + + struct cdns_mhdp_bridge bridge; + struct phy *phy; + + struct video_info video_info; + struct drm_display_mode mode; + const struct drm_display_mode *valid_mode; + unsigned int fw_version; + + struct drm_dp_mst_topology_mgr mst_mgr; + struct delayed_work hotplug_work; + + u32 lane_mapping; + bool link_up; + bool power_up; + bool plugged; + bool force_mode_set; + bool is_hpd; + bool is_ls1028a; + struct mutex lock; + struct mutex iolock; + + int irq[IRQ_NUM]; + + union { + struct _dp_data { + struct drm_dp_link link; + struct drm_dp_aux aux; + struct cdns_mhdp_host host; + struct cdns_mhdp_sink sink; + struct cdns_mhdp_mst_cbs cbs; + bool is_mst; + bool can_mst; + } dp; + struct _hdmi_data { + struct cdns_mhdp_cec cec; + u32 char_rate; + u32 hdmi_type; + } hdmi; + }; + const struct cdns_plat_data *plat_data; + +}; + +u32 cdns_mhdp_bus_read(struct cdns_mhdp_device *mhdp, u32 offset); +void cdns_mhdp_bus_write(u32 val, struct cdns_mhdp_device *mhdp, u32 offset); +void cdns_mhdp_clock_reset(struct cdns_mhdp_device *mhdp); +void cdns_mhdp_set_fw_clk(struct cdns_mhdp_device *mhdp, unsigned long clk); +u32 cdns_mhdp_get_fw_clk(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_load_firmware(struct cdns_mhdp_device *mhdp, const u32 *i_mem, + u32 i_size, const u32 *d_mem, u32 d_size); +int cdns_mhdp_set_firmware_active(struct cdns_mhdp_device *mhdp, bool enable); +int cdns_mhdp_set_host_cap(struct cdns_mhdp_device *mhdp, bool flip); +int cdns_mhdp_event_config(struct cdns_mhdp_device *mhdp); +u32 cdns_mhdp_get_event(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_get_hpd_status(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_dpcd_write(struct cdns_mhdp_device *mhdp, u32 addr, u8 value); +int cdns_mhdp_dpcd_read(struct cdns_mhdp_device *mhdp, + u32 addr, u8 *data, u16 len); +int cdns_mhdp_get_edid_block(void *mhdp, u8 *edid, + unsigned int block, size_t length); +int cdns_mhdp_train_link(struct cdns_mhdp_device *mhdp); +int cdns_mhdp_set_video_status(struct cdns_mhdp_device *mhdp, int active); +int cdns_mhdp_config_video(struct cdns_mhdp_device *mhdp); + +/* Audio */ +int cdns_mhdp_audio_stop(struct cdns_mhdp_device *mhdp, + struct audio_info *audio); +int cdns_mhdp_audio_mute(struct cdns_mhdp_device *mhdp, bool enable); +int cdns_mhdp_audio_config(struct cdns_mhdp_device *mhdp, + struct audio_info *audio); +int cdns_mhdp_register_audio_driver(struct device *dev); +void cdns_mhdp_unregister_audio_driver(struct device *dev); + +int cdns_mhdp_reg_read(struct cdns_mhdp_device *mhdp, u32 addr); +int cdns_mhdp_reg_write(struct cdns_mhdp_device *mhdp, u32 addr, u32 val); +int cdns_mhdp_reg_write_bit(struct cdns_mhdp_device *mhdp, u16 addr, + u8 start_bit, u8 bits_no, u32 val); +int cdns_mhdp_adjust_lt(struct cdns_mhdp_device *mhdp, u8 nlanes, + u16 udelay, u8 *lanes_data, + u8 *dpcd); + +int cdns_mhdp_read_hpd(struct cdns_mhdp_device *mhdp); +u32 cdns_phy_reg_read(struct cdns_mhdp_device *mhdp, u32 addr); +int cdns_phy_reg_write(struct cdns_mhdp_device *mhdp, u32 addr, u32 val); +int cdns_mhdp_mailbox_send(struct cdns_mhdp_device *mhdp, u8 module_id, + u8 opcode, u16 size, u8 *message); +int cdns_mhdp_mailbox_read_receive(struct cdns_mhdp_device *mhdp, + u8 *buff, u16 buff_size); +int cdns_mhdp_mailbox_validate_receive(struct cdns_mhdp_device *mhdp, + u8 module_id, u8 opcode, + u16 req_size); +int cdns_mhdp_mailbox_read(struct cdns_mhdp_device *mhdp); + +void cdns_mhdp_infoframe_set(struct cdns_mhdp_device *mhdp, + u8 entry_id, u8 packet_len, u8 *packet, u8 packet_type); +int cdns_hdmi_get_edid_block(void *data, u8 *edid, u32 block, size_t length); +int cdns_hdmi_scdc_read(struct cdns_mhdp_device *mhdp, u8 addr, u8 *data); +int cdns_hdmi_scdc_write(struct cdns_mhdp_device *mhdp, u8 addr, u8 value); +int cdns_hdmi_ctrl_init(struct cdns_mhdp_device *mhdp, int protocol, u32 char_rate); +int cdns_hdmi_mode_config(struct cdns_mhdp_device *mhdp, struct drm_display_mode *mode, + struct video_info *video_info); +int cdns_hdmi_disable_gcp(struct cdns_mhdp_device *mhdp); +int cdns_hdmi_enable_gcp(struct cdns_mhdp_device *mhdp); + +bool cdns_mhdp_check_alive(struct cdns_mhdp_device *mhdp); + +/* HDMI */ +int cdns_hdmi_probe(struct platform_device *pdev, + struct cdns_mhdp_device *mhdp); +void cdns_hdmi_remove(struct platform_device *pdev); +void cdns_hdmi_unbind(struct device *dev); +int cdns_hdmi_bind(struct platform_device *pdev, + struct drm_encoder *encoder, struct cdns_mhdp_device *mhdp); +void cdns_hdmi_set_sample_rate(struct cdns_mhdp_device *mhdp, unsigned int rate); +void cdns_hdmi_audio_enable(struct cdns_mhdp_device *mhdp); +void cdns_hdmi_audio_disable(struct cdns_mhdp_device *mhdp); +/* DP */ +int cdns_dp_probe(struct platform_device *pdev, + struct cdns_mhdp_device *mhdp); +void cdns_dp_remove(struct platform_device *pdev); +void cdns_dp_unbind(struct device *dev); +int cdns_dp_bind(struct platform_device *pdev, + struct drm_encoder *encoder, struct cdns_mhdp_device *mhdp); + +/* CEC */ +#ifdef CONFIG_DRM_CDNS_HDMI_CEC +int cdns_mhdp_register_cec_driver(struct device *dev); +int cdns_mhdp_unregister_cec_driver(struct device *dev); +#endif + +#endif /* CDNS_MHDP_COMMON_H_ */ -- 2.39.0