diff options
Diffstat (limited to 'drivers/thermal/sprd_pmic_2723s_thm.c')
| -rw-r--r-- | drivers/thermal/sprd_pmic_2723s_thm.c | 547 |
1 files changed, 547 insertions, 0 deletions
diff --git a/drivers/thermal/sprd_pmic_2723s_thm.c b/drivers/thermal/sprd_pmic_2723s_thm.c new file mode 100644 index 00000000..4d9d65c8 --- /dev/null +++ b/drivers/thermal/sprd_pmic_2723s_thm.c @@ -0,0 +1,547 @@ +/* + * Copyright (C) 2013 Spreadtrum Communications 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. + * + * 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 <linux/kernel.h> +#include <linux/err.h> +#include <soc/sprd/sci.h> +#include <soc/sprd/sci_glb_regs.h> +#include <linux/io.h> +#include <soc/sprd/adi.h> +#include "thm.h" +#include <linux/sprd_thm.h> +#include <soc/sprd/arch_misc.h> +#include <soc/sprd/hardware.h> +#include "thermal_core.h" +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/spi/spi.h> +#include <linux/of_device.h> +#include <linux/io.h> +#include <linux/sprd_thm.h> + +#define SPRD_THM_PMIC_DEBUG +#ifdef SPRD_THM_PMIC_DEBUG +#define THM_PMIC_DEBUG(format, arg...) printk("sprd PMIC thm: " "@@@" format, ## arg) +#else +#define THM_PMIC_DEBUG(format, arg...) +#endif + + +#define A_THM_CTRL (0x0000) +#define A_THM_INT_CTRL (0x0004) +#define A_SENSOR_CTRL (0x0020) +#define A_SENSOR_DET_PERI (0x0024) +#define A_SENSOR_INT_CTRL (0x0028) +#define A_SENSOR_INT_STS (0x002C) +#define A_SENSOR_INT_RAW_STS (0x0030) +#define A_SENSOR_INT_CLR (0x0034) +#define A_SENSOR_OVERHEAT_HOT_THRES (0X0040) +#define A_SENSOR_HOT2NOR__HIGHOFF_THRES (0X0044) +#define A_SENSOR_LOWOFF__COLD_THRES (0X0048) +#define A_SENSOR_TEMPER0_READ (0x0058) + +#define A_SEN_OVERHEAT_INT_BIT (1 << 5) +#define A_SEN_HOT_INT_BIT (1 << 4) +#define A_SEN_HOT2NOR_INT_BIT (1 << 3) +#define A_SEN_HIGHOFF_BIT (1 << 2) +#define A_SEN_LOWOFF_INT_BIT (1 << 1) + +#define A_RAW_TEMP_OFFSET 8 +#define A_RAW_TEMP_RANGE_MSK 0x7F + +#define A_HIGH_BITS_OFFSET 4 + +#define A_HIGH_TAB_SZ 8 +#define A_LOW_TAB_SZ 16 + +#define A_HOT2NOR_RANGE 15 +#define A_LOCAL_SENSOR_ADDR_OFF 0x100 +#define A_DELAY_TEMPERATURE 3 + +#define A_TSMC_DOLPHINW4T_CHIP_ID_1 0x7715A001 +#define A_TSMC_DOLPHINW4T_CHIP_ID_2 0x7715A003 +#define A_TSMC_DOLPHINWT4T_CHIP_ID_1 0x8815A001 + +static const short a_temp_search_high_152nm[A_HIGH_TAB_SZ] = + { -56, -29, -2, 26, 53, 79, 106, 133 }; +static const short a_temp_search_low_152nm[A_LOW_TAB_SZ] = + { 0, 2, 3, 5, 7, 8, 10, 11, 13, 15, 17, 18, 20, 21, 23, 25 }; + +#define SEN_OVERHEAT_INT_BIT (1 << 5) +#define SEN_HOT_INT_BIT (1 << 4) +#define SEN_HOT2NOR_INT_BIT (1 << 3) +#define SEN_HIGHOFF_BIT (1 << 2) +#define SEN_LOWOFF_INT_BIT (1 << 1) + +#define RAW_TEMP_RANGE_MSK 0x3FFF +#define RAW_READ_RANGE_MSK 0x7FFF + +#define HIGH_BITS_OFFSET 4 + +#define HOT2NOR_RANGE 15 +#define LOCAL_SENSOR_ADDR_OFF 0x100 +#define DELAY_TEMPERATURE 3 + +#define SEN_DET_PRECISION (0x50) + +#define TSMC_DOLPHINW4T_CHIP_ID_1 0x7715A001 +#define TSMC_DOLPHINW4T_CHIP_ID_2 0x7715A003 +#define TSMC_DOLPHINWT4T_CHIP_ID_1 0x8815A001 + +#define TEMP_TO_RAM_DEGREE 8 +#define TEMP_LOW (-40) +#define TEMP_HIGH (120) +#define RAW_DATA_LOW (623) +#define RAW_DATA_HIGH (1030) +#define THM_SENOR_NUM 8 + +//static const u32 temp_to_raw[TEMP_TO_RAM_DEGREE + 1] = { RAW_DATA_LOW, 676, 725, 777, 828, 878, 928, 980,RAW_DATA_HIGH }; + +static int pmic_sen_cal_offset = 0; + +unsigned long SPRD_ADIE_THM_BASE = 0; +unsigned int SPRD_ADIE_THM_SIZE = 0; + +extern int sprd_thermal_init(struct sprd_thermal_zone *pzone); +extern void sprd_thermal_remove(struct sprd_thermal_zone *pzone); + +static inline int __thm_pmic_reg_write(unsigned long reg, u16 bits, u16 clear_msk); +static inline u32 __thm_pmic_reg_read(unsigned long reg); + +static inline int __thm_pmic_reg_write(unsigned long reg, u16 bits, u16 clear_msk) +{ + sci_adi_write(reg, bits, clear_msk); + return 0; +} + +static inline u32 __thm_pmic_reg_read(unsigned long reg) +{ + return sci_adi_read(reg); +} +static u32 sprd_thm_temp2rawdata_a(u32 sensor, int temp) +{ + u32 high_bits, low_bits; + int i; + const short *high_tab; + const short *low_tab; + high_tab = a_temp_search_high_152nm; + low_tab = a_temp_search_low_152nm; + + if (temp < high_tab[0]) { + printk(KERN_ERR "temp over low temp:%d \n", temp); + return 0; + } + + for (i = A_HIGH_TAB_SZ - 1; i >= 0; i--) { + if (high_tab[i] <= temp) + break; + } + if (i < 0) { + i = 0; + } + temp -= high_tab[i]; + high_bits = i; + + for (i = A_LOW_TAB_SZ - 1; i >= 0; i--) { + if (low_tab[i] <= temp) + break; + } + if (i < 0) { + i = 0; + } + low_bits = i; + return ((high_bits << HIGH_BITS_OFFSET) | low_bits); + +} +static int sprd_thm_rawdata2temp_a(u32 sensor, int rawdata) +{ + const short *high_tab; + const short *low_tab; + high_tab = a_temp_search_high_152nm; + low_tab = a_temp_search_low_152nm; + + return high_tab[(rawdata >> HIGH_BITS_OFFSET) & 0x07] + + low_tab[rawdata & 0x0F]; +} + +static unsigned long sprd_pmic_thm_temp_read(struct sprd_thermal_zone *pzone) +{ + u32 rawdata = 0; + int cal_offset = 0; + u32 sensor = pzone->sensor_id; + + rawdata = __thm_pmic_reg_read(pzone->reg_base + A_SENSOR_TEMPER0_READ); + cal_offset = pmic_sen_cal_offset; + THM_PMIC_DEBUG("A thm sensor id:%d, cal_offset:%d, rawdata:0x%x\n", sensor, + cal_offset, rawdata); + return (sprd_thm_rawdata2temp_a(sensor, rawdata)*1000 + cal_offset*1000); +} + +static int sprd_pmic_thm_hw_init(struct sprd_thermal_zone *pzone) +{ + unsigned long local_sensor_addr, base_addr = 0; + u32 local_sen_id = 0; + int cal_offset = 0; + int i; + //struct sprd_thm_platform_data *trip_tab = pzone->trip_tab; + base_addr = pzone->reg_base; + local_sensor_addr = pzone->reg_base; + + THM_PMIC_DEBUG( "sprd_adie_thm_hw_init 2713s_thm id:%d,base 0x%lx \n", + pzone->sensor_id, base_addr); + // adie thm en + sci_adi_set(ANA_REG_GLB_ARM_MODULE_EN, BIT_ANA_THM_EN); + sci_adi_set(ANA_REG_GLB_RTC_CLK_EN, + BIT_RTC_THMA_AUTO_EN | BIT_RTC_THMA_EN | + BIT_RTC_THM_EN); + + // Reset Thermal + sci_adi_set(ANA_REG_GLB_ARM_RST, + BIT_ANA_THM_SOFT_RST | BIT_ANA_THMA_SOFT_RST); + for(i=0; i < 10000; i++); + sci_adi_clr(ANA_REG_GLB_ARM_RST, + BIT_ANA_THM_SOFT_RST | BIT_ANA_THMA_SOFT_RST); + + cal_offset = pmic_sen_cal_offset = 0; + local_sen_id = 0; + + __thm_pmic_reg_write((base_addr + A_THM_CTRL), 0x1 >> local_sen_id, 0); + __thm_pmic_reg_write((base_addr + A_THM_INT_CTRL), 0x3, 0); //enable top int + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CTRL), 0, ~0); //disable all int + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CLR), ~0, 0); //clr all int + THM_PMIC_DEBUG( "sprd_thm_hw_init addr 0x:%lx,int ctrl 0x%x\n", + local_sensor_addr, + __thm_pmic_reg_read((local_sensor_addr + A_SENSOR_INT_CTRL))); + + // Set sensor det period is 0.25S + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_DET_PERI), 0x2000, 0x2000); + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_CTRL), 0x01, 0x01); + // Start the sensor by set Sen_set_rdy(bit3) + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_CTRL), 0x8, 0x8); + + return 0; +} + +static int sprd_pmic_thm_hw_disable_sensor(struct sprd_thermal_zone *pzone) +{ + int ret = 0; + THM_PMIC_DEBUG("sprd_2713S_thm disable PMIC sensor \n" ); + __thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x0, 0x8); + __thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x00, 0x01); + + return ret; +} + +static int sprd_pmic_thm_hw_enable_sensor(struct sprd_thermal_zone *pzone) +{ + int ret = 0; + // Sensor minitor enable + THM_PMIC_DEBUG("sprd_2713S_thm enable PMIC sensor \n"); + sci_adi_set(ANA_REG_GLB_RTC_CLK_EN, + BIT_RTC_THMA_AUTO_EN | BIT_RTC_THMA_EN | + BIT_RTC_THM_EN); + __thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x01, 0x01); + __thm_pmic_reg_write((unsigned long )(pzone->reg_base + A_SENSOR_CTRL), 0x8, 0x8); + + + return ret; +} + + +u16 int_pmic_ctrl_reg[SPRD_MAX_SENSOR]; +static int sprd_pmic_thm_hw_suspend(struct sprd_thermal_zone *pzone) +{ + u32 local_sen_id = 0; + unsigned long local_sensor_addr; + int ret = 0; + + local_sensor_addr = + (unsigned long ) pzone->reg_base + local_sen_id * LOCAL_SENSOR_ADDR_OFF; + int_pmic_ctrl_reg[pzone->sensor_id] = __thm_pmic_reg_read((local_sensor_addr + A_SENSOR_INT_CTRL)); + + sprd_pmic_thm_hw_disable_sensor(pzone); + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CTRL), 0, ~0); //disable all int + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CLR), ~0, 0); //clr all int + return ret; +} +static int sprd_pmic_thm_hw_resume(struct sprd_thermal_zone *pzone) +{ + u32 local_sen_id = 0; + unsigned long local_sensor_addr; + int ret = 0; + + local_sensor_addr = + (unsigned long ) pzone->reg_base + local_sen_id * LOCAL_SENSOR_ADDR_OFF; + + sprd_pmic_thm_hw_enable_sensor(pzone); + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CLR), ~0, 0); //clr all int + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_INT_CTRL), int_pmic_ctrl_reg[pzone->sensor_id], ~0); //enable int of saved + __thm_pmic_reg_write((local_sensor_addr + A_SENSOR_CTRL), 0x9, 0); + + return ret; +} + +static int sprd_pmic_thm_get_trend(struct sprd_thermal_zone *pzone, int trip, enum thermal_trend *ptrend) +{ + *ptrend = pzone->trend_val; + return 0; +} + +static int sprd_pmic_thm_get_hyst(struct sprd_thermal_zone *pzone, int trip, unsigned long *physt) +{ + struct sprd_thm_platform_data *trip_tab = pzone->trip_tab; + if (trip >= trip_tab->num_trips - 2){ + *physt = 0; + }else{ + *physt = trip_tab->trip_points[trip].temp - trip_tab->trip_points[trip + 1].lowoff; + } + return 0; +} + +struct thm_handle_ops sprd_pmic_ops = +{ + .hw_init = sprd_pmic_thm_hw_init, + .read_temp = sprd_pmic_thm_temp_read, + .get_trend = sprd_pmic_thm_get_trend, + .get_hyst = sprd_pmic_thm_get_hyst, + .suspend = sprd_pmic_thm_hw_suspend, + .resume = sprd_pmic_thm_hw_resume, +}; + +static struct sprd_thm_platform_data *thermal_detect_parse_dt( + struct device *dev) +{ + struct sprd_thm_platform_data *pdata; + struct device_node *np = dev->of_node; + u32 trip_points_critical,trip_num; + char prop_name[32]; + const char *tmp_str; + u32 tmp_data,tmp_lowoff; + int ret,i ,j = 0; + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(dev, "could not allocate memory for platform data\n"); + return NULL; + } + ret = of_property_read_u32(np, "trip-points-critical", &trip_points_critical); + if(ret){ + dev_err(dev, "fail to get trip_points_critical\n"); + goto fail; + } + ret = of_property_read_u32(np, "trip-num", &trip_num); + if(ret){ + dev_err(dev, "fail to get trip_num\n"); + goto fail; + } + for (i = 0; i <trip_num-1; ++i) { + sprintf(prop_name, "trip%d-temp-active", i); + if (of_property_read_u32(np, prop_name, &tmp_data)){ + dev_err(dev, "fail to get trip%d-temp-active\n",i); + goto fail; + } + + pdata->trip_points[i].temp = tmp_data; + sprintf(prop_name, "trip%d-temp-lowoff", i); + if (of_property_read_u32(np, prop_name, &tmp_lowoff)){ + dev_err(dev, "fail to get trip%d-temp-lowoff\n",i); + goto fail; + } + pdata->trip_points[i].lowoff = tmp_lowoff; + sprintf(prop_name, "trip%d-type", i); + if (of_property_read_string(np, prop_name, &tmp_str)) + goto fail; + + if (!strcmp(tmp_str, "active")) + pdata->trip_points[i].type = THERMAL_TRIP_ACTIVE; + else if (!strcmp(tmp_str, "passive")) + pdata->trip_points[i].type = THERMAL_TRIP_PASSIVE; + else if (!strcmp(tmp_str, "hot")) + pdata->trip_points[i].type = THERMAL_TRIP_HOT; + else if (!strcmp(tmp_str, "critical")) + pdata->trip_points[i].type = THERMAL_TRIP_CRITICAL; + else + goto fail; + + sprintf(prop_name, "trip%d-cdev-num", i); + if (of_property_read_u32(np, prop_name, &tmp_data)) + goto fail; + for (j = 0; j < tmp_data; j++) { + sprintf(prop_name, "trip%d-cdev-name%d", i, j); + if (of_property_read_string(np, prop_name, &tmp_str)) + goto fail; + strcpy(pdata->trip_points[i].cdev_name[j], tmp_str); + dev_info(dev,"cdev name: %s \n", pdata->trip_points[i].cdev_name[j]); + } + dev_info(dev, "trip[%d] temp: %lu lowoff: %lu\n", + i, pdata->trip_points[i].temp, pdata->trip_points[i].lowoff); + } + pdata->trip_points[i].temp = trip_points_critical; + pdata->trip_points[i].type = THERMAL_TRIP_CRITICAL; + dev_info(dev, "trip[%d] temp: %lu \n", + i, pdata->trip_points[i].temp); + pdata->num_trips = trip_num; + + return pdata; + +fail: + kfree(pdata); + return NULL; + +} + + +static int sprd_adi_thm_probe(struct platform_device *pdev) +{ + struct sprd_thermal_zone *pzone = NULL; + struct sprd_thm_platform_data *ptrips = NULL; + struct resource *res; + const char *thm_name; + int ret,temp_interval,sensor_id; + unsigned long adie_thm_base; + struct device_node *np = pdev->dev.of_node; + if (!np) { + dev_err(&pdev->dev, "device node not found\n"); + return -EINVAL; + } + printk("sprd_adi_thm_probe start\n"); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + adie_thm_base = (unsigned long)devm_ioremap_resource(&pdev->dev, res); + if (!adie_thm_base) { + pr_err("thermal ioremap failed!\n"); + return -ENOMEM; + } +#if 0 + pdev->id = of_alias_get_id(np, "thmzone"); + printk(KERN_INFO " sprd_thermal_probe id:%d\n", pdev->id); + if (unlikely(pdev->id < 0 || pdev->id >= THM_SENOR_NUM)) { + dev_err(&pdev->dev, "does not support id %d\n", pdev->id); + return -ENXIO; + } +#endif + ret = of_property_read_u32(np, "temp-inteval", &temp_interval); + if(ret){ + dev_err(&pdev->dev, "fail to get temp-inteval\n"); + return -EINVAL; + } + ret = of_property_read_u32(np, "id", &sensor_id); + if (ret) { + dev_err(&pdev->dev, "fail to get id\n"); + return -EINVAL; + } + ptrips = thermal_detect_parse_dt(&pdev->dev); + if (!ptrips){ + dev_err(&pdev->dev, "not found ptrips\n"); + return -EINVAL; + } + pzone = devm_kzalloc(&pdev->dev, sizeof(*pzone), GFP_KERNEL); + mutex_init(&pzone->th_lock); + mutex_lock(&pzone->th_lock); + if (!pzone) + return -ENOMEM; + of_property_read_string(np, "thermal-name",&thm_name); + strcpy(pzone->thermal_zone_name, thm_name); + printk("the thermal-name1 is %s\n",pzone->thermal_zone_name); + pzone->reg_base = (unsigned long) ANA_THM_BASE; + pzone->trip_tab = ptrips; + pzone->temp_inteval = temp_interval; + pzone->sensor_id = sensor_id; + pzone->ops = &sprd_pmic_ops; + ret = sprd_pmic_thm_hw_init(pzone); + if(ret){ + dev_err(&pdev->dev, " pzone hw init error id =%d\n",pzone->sensor_id); + return -ENODEV; + } + ret = sprd_thermal_init(pzone); + if(ret){ + dev_err(&pdev->dev, " pzone sw init error id =%d\n",pzone->sensor_id); + return -ENODEV; + } + platform_set_drvdata(pdev, pzone); + mutex_unlock(&pzone->th_lock); + printk("sprd_adi_thm_probe end\n"); + return 0; +} + +static int sprd_adi_thm_remove(struct platform_device *pdev) +{ + struct sprd_thermal_zone *pzone = platform_get_drvdata(pdev); + sprd_thermal_remove(pzone); + return 0; +} + +static int sprd_adi_thm_suspend(struct platform_device *pdev, + pm_message_t state) +{ + struct sprd_thermal_zone *pzone = platform_get_drvdata(pdev); + //flush_delayed_work(&pzone->thm_logtime_work); + flush_delayed_work(&pzone->thm_read_work); + flush_delayed_work(&pzone->resume_delay_work); + pzone->ops->suspend(pzone); + return 0; +} + +static int sprd_adi_thm_resume(struct platform_device *pdev) +{ + + struct sprd_thermal_zone *pzone = platform_get_drvdata(pdev); + schedule_delayed_work(&pzone->resume_delay_work, (HZ * 1)); + schedule_delayed_work(&pzone->thm_read_work, (HZ * 5)); + //schedule_delayed_work(&pzone->thm_logtime_work, (HZ * 7)); + //pzone->ops->resume(pzone); + return 0; +} + +static const struct of_device_id thermal_of_match[] = { + { .compatible = "sprd,sc2723-thermal", }, + {} +}; + +static struct platform_driver sprd_thermal_driver = { + .probe = sprd_adi_thm_probe, + .suspend = sprd_adi_thm_suspend, + .resume = sprd_adi_thm_resume, + .remove = sprd_adi_thm_remove, + .driver = { + .owner = THIS_MODULE, + .name = "sc2723-thermal", +#ifdef CONFIG_OF + .of_match_table = of_match_ptr(thermal_of_match), +#endif + }, +}; +static int __init sprd_adi_thermal_init(void) +{ + return platform_driver_register(&sprd_thermal_driver); +} + +static void __exit sprd_adi_thermal_exit(void) +{ + platform_driver_unregister(&sprd_thermal_driver); +} + +device_initcall_sync(sprd_adi_thermal_init); +module_exit(sprd_adi_thermal_exit); + +MODULE_AUTHOR("Freeman Liu <freeman.liu@spreadtrum.com>"); +MODULE_DESCRIPTION("sprd thermal driver"); +MODULE_LICENSE("GPL"); + + + + |