Restore patches and add default config, hooks and preset

1 files changed, 70 insertions, 0 deletions

diff --git a/linux-mnt-pocket-reform/0003-lcdif-fix-pcie-interference.patch b/linux-mnt-pocket-reform/0003-lcdif-fix-pcie-interference.patch
new file mode 100644
index 0000000..142cf33
--- /dev/null
+++ b/linux-mnt-pocket-reform/0003-lcdif-fix-pcie-interference.patch
@@ -0,0 +1,70 @@
+From 7ebe66c198cc1f76d55bd42d81ae724f74b832a9 Mon Sep 17 00:00:00 2001
+From: "Lukas F. Hartmann" <lukas@mntre.com>
+Date: Wed, 7 Sep 2022 06:23:35 +0200
+Subject: [PATCH 3/6] lcdif-fix-pcie-interference
+
+---
+ drivers/gpu/drm/mxsfb/mxsfb_kms.c | 34 ++++++++++++++++++++++++++++++-
+ 1 file changed, 33 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+index 3bcc9c0..5b5b01f 100644
+--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
++++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+@@ -303,7 +303,7 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb,
+ 
+ 	mxsfb_set_formats(mxsfb, bus_format);
+ 
+-	clk_set_rate(mxsfb->clk, m->crtc_clock * 1000);
++	clk_set_rate(mxsfb->clk, m->crtc_clock * 660);
+ 
+ 	mxsfb_set_mode(mxsfb, bus_flags);
+ }
+@@ -662,12 +662,44 @@ static const uint64_t mxsfb_modifiers[] = {
+  * Initialization
+  */
+ 
++void imx8mq_pcie_qos_for_lcdif(void)
++{
++	void __iomem *qosc = ioremap(0x307f0000, 0x2100);
++	// clock and unlock QoSC registers
++	writel(0x0, qosc);
++	writel(0x1, qosc);
++	writel(0x0, qosc+0x60);
++
++	// limit number of outstanding transactions for PCIe1
++	writel(0x0, qosc+0x1000);
++	writel(0x1, qosc+0x1000);
++	writel(0x01010100, qosc+0x1050);
++	writel(0x01010100, qosc+0x1060);
++	writel(0x01010100, qosc+0x1070);
++	writel(0x1, qosc+0x1000);
++
++	// limit number of outstanding transactions for PCIe2
++	writel(0x0, qosc+0x2000);
++	writel(0x1, qosc+0x2000);
++	writel(0x01010100, qosc+0x2050);
++	writel(0x01010100, qosc+0x2060);
++	writel(0x01010100, qosc+0x2070);
++	writel(0x1, qosc+0x2000);
++
++	iounmap(qosc);
++}
++
+ int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb)
+ {
+ 	struct drm_encoder *encoder = &mxsfb->encoder;
+ 	struct drm_crtc *crtc = &mxsfb->crtc;
+ 	int ret;
+ 
++	/*
++		FIXME Workaround to fix PCIe interfering with LCDIF refresh (MNT Reform)
++	*/
++	imx8mq_pcie_qos_for_lcdif();
++
+ 	drm_plane_helper_add(&mxsfb->planes.primary,
+ 			     &mxsfb_plane_primary_helper_funcs);
+ 	ret = drm_universal_plane_init(mxsfb->drm, &mxsfb->planes.primary, 1,
+-- 
+2.39.0
+