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thermal: samsung: core: Exynos TMU rework to use device tree for configuration
This patch brings support for providing configuration via device tree. Previously this data has been hardcoded in the exynos_tmu_data.c file. Such approach was not scalable and very often required copying the whole data. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Lukasz Majewski
Eduardo Valentin
parent
d29f0a1095
commit
3b6a1a805f
@ -3,5 +3,3 @@
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#
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obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o
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exynos_thermal-y := exynos_tmu.o
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exynos_thermal-y += exynos_tmu_data.o
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exynos_thermal-$(CONFIG_EXYNOS_THERMAL_CORE) += exynos_thermal_common.o
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@ -1,6 +1,10 @@
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/*
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* exynos_tmu.c - Samsung EXYNOS TMU (Thermal Management Unit)
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*
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* Copyright (C) 2014 Samsung Electronics
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* Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* Copyright (C) 2011 Samsung Electronics
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* Donggeun Kim <dg77.kim@samsung.com>
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* Amit Daniel Kachhap <amit.kachhap@linaro.org>
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@ -31,8 +35,8 @@
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#include <linux/platform_device.h>
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#include <linux/regulator/consumer.h>
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#include "exynos_thermal_common.h"
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#include "exynos_tmu.h"
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#include "../thermal_core.h"
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/* Exynos generic registers */
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#define EXYNOS_TMU_REG_TRIMINFO 0x0
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@ -115,6 +119,7 @@
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#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24
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#define EXYNOS5440_EFUSE_SWAP_OFFSET 8
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#define MCELSIUS 1000
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/**
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* struct exynos_tmu_data : A structure to hold the private data of the TMU
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driver
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@ -150,7 +155,8 @@ struct exynos_tmu_data {
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struct clk *clk, *clk_sec;
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u8 temp_error1, temp_error2;
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struct regulator *regulator;
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struct thermal_sensor_conf *reg_conf;
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struct thermal_zone_device *tzd;
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int (*tmu_initialize)(struct platform_device *pdev);
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void (*tmu_control)(struct platform_device *pdev, bool on);
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int (*tmu_read)(struct exynos_tmu_data *data);
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@ -159,6 +165,33 @@ struct exynos_tmu_data {
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void (*tmu_clear_irqs)(struct exynos_tmu_data *data);
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};
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static void exynos_report_trigger(struct exynos_tmu_data *p)
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{
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char data[10], *envp[] = { data, NULL };
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struct thermal_zone_device *tz = p->tzd;
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unsigned long temp;
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unsigned int i;
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if (!p) {
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pr_err("Wrong temperature configuration data\n");
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return;
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}
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thermal_zone_device_update(tz);
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mutex_lock(&tz->lock);
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/* Find the level for which trip happened */
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for (i = 0; i < of_thermal_get_ntrips(tz); i++) {
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tz->ops->get_trip_temp(tz, i, &temp);
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if (tz->last_temperature < temp)
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break;
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}
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snprintf(data, sizeof(data), "%u", i);
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kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, envp);
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mutex_unlock(&tz->lock);
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}
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/*
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* TMU treats temperature as a mapped temperature code.
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* The temperature is converted differently depending on the calibration type.
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@ -234,14 +267,25 @@ static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info)
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static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling)
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{
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struct exynos_tmu_platform_data *pdata = data->pdata;
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struct thermal_zone_device *tz = data->tzd;
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const struct thermal_trip * const trips =
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of_thermal_get_trip_points(tz);
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unsigned long temp;
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int i;
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for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
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u8 temp = pdata->trigger_levels[i];
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if (!trips) {
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pr_err("%s: Cannot get trip points from of-thermal.c!\n",
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__func__);
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return 0;
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}
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for (i = 0; i < of_thermal_get_ntrips(tz); i++) {
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if (trips[i].type == THERMAL_TRIP_CRITICAL)
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continue;
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temp = trips[i].temperature / MCELSIUS;
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if (falling)
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temp -= pdata->threshold_falling;
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temp -= (trips[i].hysteresis / MCELSIUS);
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else
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threshold &= ~(0xff << 8 * i);
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@ -305,9 +349,19 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on)
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static int exynos4210_tmu_initialize(struct platform_device *pdev)
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{
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_platform_data *pdata = data->pdata;
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unsigned int status;
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struct thermal_zone_device *tz = data->tzd;
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const struct thermal_trip * const trips =
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of_thermal_get_trip_points(tz);
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int ret = 0, threshold_code, i;
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unsigned long reference, temp;
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unsigned int status;
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if (!trips) {
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pr_err("%s: Cannot get trip points from of-thermal.c!\n",
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__func__);
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ret = -ENODEV;
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goto out;
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}
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status = readb(data->base + EXYNOS_TMU_REG_STATUS);
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if (!status) {
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@ -318,12 +372,19 @@ static int exynos4210_tmu_initialize(struct platform_device *pdev)
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sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO));
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/* Write temperature code for threshold */
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threshold_code = temp_to_code(data, pdata->threshold);
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reference = trips[0].temperature / MCELSIUS;
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threshold_code = temp_to_code(data, reference);
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if (threshold_code < 0) {
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ret = threshold_code;
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goto out;
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}
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writeb(threshold_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
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for (i = 0; i < pdata->non_hw_trigger_levels; i++)
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writeb(pdata->trigger_levels[i], data->base +
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for (i = 0; i < of_thermal_get_ntrips(tz); i++) {
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temp = trips[i].temperature / MCELSIUS;
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writeb(temp - reference, data->base +
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EXYNOS4210_TMU_REG_TRIG_LEVEL0 + i * 4);
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}
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data->tmu_clear_irqs(data);
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out:
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@ -333,9 +394,11 @@ out:
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static int exynos4412_tmu_initialize(struct platform_device *pdev)
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{
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_platform_data *pdata = data->pdata;
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const struct thermal_trip * const trips =
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of_thermal_get_trip_points(data->tzd);
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unsigned int status, trim_info, con, ctrl, rising_threshold;
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int ret = 0, threshold_code, i;
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unsigned long crit_temp = 0;
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status = readb(data->base + EXYNOS_TMU_REG_STATUS);
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if (!status) {
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@ -373,17 +436,29 @@ static int exynos4412_tmu_initialize(struct platform_device *pdev)
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data->tmu_clear_irqs(data);
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/* if last threshold limit is also present */
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i = pdata->max_trigger_level - 1;
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if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) {
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threshold_code = temp_to_code(data, pdata->trigger_levels[i]);
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/* 1-4 level to be assigned in th0 reg */
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rising_threshold &= ~(0xff << 8 * i);
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rising_threshold |= threshold_code << 8 * i;
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writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE);
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con = readl(data->base + EXYNOS_TMU_REG_CONTROL);
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con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
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writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
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for (i = 0; i < of_thermal_get_ntrips(data->tzd); i++) {
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if (trips[i].type == THERMAL_TRIP_CRITICAL) {
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crit_temp = trips[i].temperature;
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break;
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}
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}
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if (i == of_thermal_get_ntrips(data->tzd)) {
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pr_err("%s: No CRITICAL trip point defined at of-thermal.c!\n",
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__func__);
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ret = -EINVAL;
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goto out;
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}
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threshold_code = temp_to_code(data, crit_temp / MCELSIUS);
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/* 1-4 level to be assigned in th0 reg */
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rising_threshold &= ~(0xff << 8 * i);
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rising_threshold |= threshold_code << 8 * i;
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writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE);
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con = readl(data->base + EXYNOS_TMU_REG_CONTROL);
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con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
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writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
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out:
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return ret;
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}
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@ -391,9 +466,9 @@ out:
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static int exynos5440_tmu_initialize(struct platform_device *pdev)
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{
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_platform_data *pdata = data->pdata;
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unsigned int trim_info = 0, con, rising_threshold;
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int ret = 0, threshold_code, i;
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int ret = 0, threshold_code;
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unsigned long crit_temp = 0;
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/*
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* For exynos5440 soc triminfo value is swapped between TMU0 and
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@ -422,9 +497,8 @@ static int exynos5440_tmu_initialize(struct platform_device *pdev)
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data->tmu_clear_irqs(data);
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/* if last threshold limit is also present */
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i = pdata->max_trigger_level - 1;
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if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) {
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threshold_code = temp_to_code(data, pdata->trigger_levels[i]);
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if (!data->tzd->ops->get_crit_temp(data->tzd, &crit_temp)) {
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threshold_code = temp_to_code(data, crit_temp / MCELSIUS);
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/* 5th level to be assigned in th2 reg */
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rising_threshold =
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threshold_code << EXYNOS5440_TMU_TH_RISE4_SHIFT;
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@ -442,7 +516,7 @@ static int exynos5440_tmu_initialize(struct platform_device *pdev)
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static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
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{
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_platform_data *pdata = data->pdata;
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struct thermal_zone_device *tz = data->tzd;
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unsigned int con, interrupt_en;
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con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
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@ -450,10 +524,15 @@ static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
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if (on) {
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con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
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interrupt_en =
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pdata->trigger_enable[3] << EXYNOS_TMU_INTEN_RISE3_SHIFT |
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pdata->trigger_enable[2] << EXYNOS_TMU_INTEN_RISE2_SHIFT |
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pdata->trigger_enable[1] << EXYNOS_TMU_INTEN_RISE1_SHIFT |
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pdata->trigger_enable[0] << EXYNOS_TMU_INTEN_RISE0_SHIFT;
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(of_thermal_is_trip_valid(tz, 3)
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<< EXYNOS_TMU_INTEN_RISE3_SHIFT) |
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(of_thermal_is_trip_valid(tz, 2)
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<< EXYNOS_TMU_INTEN_RISE2_SHIFT) |
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(of_thermal_is_trip_valid(tz, 1)
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<< EXYNOS_TMU_INTEN_RISE1_SHIFT) |
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(of_thermal_is_trip_valid(tz, 0)
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<< EXYNOS_TMU_INTEN_RISE0_SHIFT);
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if (data->soc != SOC_ARCH_EXYNOS4210)
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interrupt_en |=
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interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
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@ -468,7 +547,7 @@ static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
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static void exynos5440_tmu_control(struct platform_device *pdev, bool on)
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{
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struct exynos_tmu_data *data = platform_get_drvdata(pdev);
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struct exynos_tmu_platform_data *pdata = data->pdata;
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struct thermal_zone_device *tz = data->tzd;
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unsigned int con, interrupt_en;
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con = get_con_reg(data, readl(data->base + EXYNOS5440_TMU_S0_7_CTRL));
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@ -476,11 +555,16 @@ static void exynos5440_tmu_control(struct platform_device *pdev, bool on)
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if (on) {
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con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
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interrupt_en =
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pdata->trigger_enable[3] << EXYNOS5440_TMU_INTEN_RISE3_SHIFT |
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pdata->trigger_enable[2] << EXYNOS5440_TMU_INTEN_RISE2_SHIFT |
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pdata->trigger_enable[1] << EXYNOS5440_TMU_INTEN_RISE1_SHIFT |
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pdata->trigger_enable[0] << EXYNOS5440_TMU_INTEN_RISE0_SHIFT;
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interrupt_en |= interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT;
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(of_thermal_is_trip_valid(tz, 3)
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<< EXYNOS5440_TMU_INTEN_RISE3_SHIFT) |
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(of_thermal_is_trip_valid(tz, 2)
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<< EXYNOS5440_TMU_INTEN_RISE2_SHIFT) |
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(of_thermal_is_trip_valid(tz, 1)
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<< EXYNOS5440_TMU_INTEN_RISE1_SHIFT) |
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(of_thermal_is_trip_valid(tz, 0)
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<< EXYNOS5440_TMU_INTEN_RISE0_SHIFT);
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interrupt_en |=
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interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT;
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} else {
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con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
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interrupt_en = 0; /* Disable all interrupts */
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@ -489,19 +573,22 @@ static void exynos5440_tmu_control(struct platform_device *pdev, bool on)
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writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL);
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}
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static int exynos_tmu_read(struct exynos_tmu_data *data)
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static int exynos_get_temp(void *p, long *temp)
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{
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int ret;
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struct exynos_tmu_data *data = p;
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if (!data)
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return -EINVAL;
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mutex_lock(&data->lock);
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clk_enable(data->clk);
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ret = data->tmu_read(data);
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if (ret >= 0)
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ret = code_to_temp(data, ret);
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*temp = code_to_temp(data, data->tmu_read(data)) * MCELSIUS;
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clk_disable(data->clk);
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mutex_unlock(&data->lock);
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return ret;
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return 0;
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}
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#ifdef CONFIG_THERMAL_EMULATION
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@ -613,7 +700,7 @@ static void exynos_tmu_work(struct work_struct *work)
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if (!IS_ERR(data->clk_sec))
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clk_disable(data->clk_sec);
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exynos_report_trigger(data->reg_conf);
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exynos_report_trigger(data);
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mutex_lock(&data->lock);
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clk_enable(data->clk);
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@ -673,55 +760,89 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id)
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static const struct of_device_id exynos_tmu_match[] = {
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{
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.compatible = "samsung,exynos3250-tmu",
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.data = &exynos3250_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos4210-tmu",
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.data = &exynos4210_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos4412-tmu",
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.data = &exynos4412_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos5250-tmu",
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.data = &exynos5250_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos5260-tmu",
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.data = &exynos5260_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos5420-tmu",
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.data = &exynos5420_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos5420-tmu-ext-triminfo",
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.data = &exynos5420_default_tmu_data,
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},
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{
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.compatible = "samsung,exynos5440-tmu",
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.data = &exynos5440_default_tmu_data,
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, exynos_tmu_match);
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static inline struct exynos_tmu_platform_data *exynos_get_driver_data(
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struct platform_device *pdev, int id)
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static int exynos_of_get_soc_type(struct device_node *np)
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{
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struct exynos_tmu_init_data *data_table;
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struct exynos_tmu_platform_data *tmu_data;
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const struct of_device_id *match;
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if (of_device_is_compatible(np, "samsung,exynos3250-tmu"))
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return SOC_ARCH_EXYNOS3250;
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else if (of_device_is_compatible(np, "samsung,exynos4210-tmu"))
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return SOC_ARCH_EXYNOS4210;
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else if (of_device_is_compatible(np, "samsung,exynos4412-tmu"))
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return SOC_ARCH_EXYNOS4412;
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else if (of_device_is_compatible(np, "samsung,exynos5250-tmu"))
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return SOC_ARCH_EXYNOS5250;
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else if (of_device_is_compatible(np, "samsung,exynos5260-tmu"))
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return SOC_ARCH_EXYNOS5260;
|
||||
else if (of_device_is_compatible(np, "samsung,exynos5420-tmu"))
|
||||
return SOC_ARCH_EXYNOS5420;
|
||||
else if (of_device_is_compatible(np,
|
||||
"samsung,exynos5420-tmu-ext-triminfo"))
|
||||
return SOC_ARCH_EXYNOS5420_TRIMINFO;
|
||||
else if (of_device_is_compatible(np, "samsung,exynos5440-tmu"))
|
||||
return SOC_ARCH_EXYNOS5440;
|
||||
|
||||
match = of_match_node(exynos_tmu_match, pdev->dev.of_node);
|
||||
if (!match)
|
||||
return NULL;
|
||||
data_table = (struct exynos_tmu_init_data *) match->data;
|
||||
if (!data_table || id >= data_table->tmu_count)
|
||||
return NULL;
|
||||
tmu_data = data_table->tmu_data;
|
||||
return (struct exynos_tmu_platform_data *) (tmu_data + id);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int exynos_of_sensor_conf(struct device_node *np,
|
||||
struct exynos_tmu_platform_data *pdata)
|
||||
{
|
||||
u32 value;
|
||||
int ret;
|
||||
|
||||
of_node_get(np);
|
||||
|
||||
ret = of_property_read_u32(np, "samsung,tmu_gain", &value);
|
||||
pdata->gain = (u8)value;
|
||||
of_property_read_u32(np, "samsung,tmu_reference_voltage", &value);
|
||||
pdata->reference_voltage = (u8)value;
|
||||
of_property_read_u32(np, "samsung,tmu_noise_cancel_mode", &value);
|
||||
pdata->noise_cancel_mode = (u8)value;
|
||||
|
||||
of_property_read_u32(np, "samsung,tmu_efuse_value",
|
||||
&pdata->efuse_value);
|
||||
of_property_read_u32(np, "samsung,tmu_min_efuse_value",
|
||||
&pdata->min_efuse_value);
|
||||
of_property_read_u32(np, "samsung,tmu_max_efuse_value",
|
||||
&pdata->max_efuse_value);
|
||||
|
||||
of_property_read_u32(np, "samsung,tmu_first_point_trim", &value);
|
||||
pdata->first_point_trim = (u8)value;
|
||||
of_property_read_u32(np, "samsung,tmu_second_point_trim", &value);
|
||||
pdata->second_point_trim = (u8)value;
|
||||
of_property_read_u32(np, "samsung,tmu_default_temp_offset", &value);
|
||||
pdata->default_temp_offset = (u8)value;
|
||||
|
||||
of_property_read_u32(np, "samsung,tmu_cal_type", &pdata->cal_type);
|
||||
of_property_read_u32(np, "samsung,tmu_cal_mode", &pdata->cal_mode);
|
||||
|
||||
of_node_put(np);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_map_dt_data(struct platform_device *pdev)
|
||||
@ -771,14 +892,15 @@ static int exynos_map_dt_data(struct platform_device *pdev)
|
||||
return -EADDRNOTAVAIL;
|
||||
}
|
||||
|
||||
pdata = exynos_get_driver_data(pdev, data->id);
|
||||
if (!pdata) {
|
||||
dev_err(&pdev->dev, "No platform init data supplied.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
pdata = devm_kzalloc(&pdev->dev,
|
||||
sizeof(struct exynos_tmu_platform_data),
|
||||
GFP_KERNEL);
|
||||
if (!pdata)
|
||||
return -ENOMEM;
|
||||
|
||||
exynos_of_sensor_conf(pdev->dev.of_node, pdata);
|
||||
data->pdata = pdata;
|
||||
data->soc = pdata->type;
|
||||
data->soc = exynos_of_get_soc_type(pdev->dev.of_node);
|
||||
|
||||
switch (data->soc) {
|
||||
case SOC_ARCH_EXYNOS4210:
|
||||
@ -834,12 +956,16 @@ static int exynos_map_dt_data(struct platform_device *pdev)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct thermal_zone_of_device_ops exynos_sensor_ops = {
|
||||
.get_temp = exynos_get_temp,
|
||||
.set_emul_temp = exynos_tmu_set_emulation,
|
||||
};
|
||||
|
||||
static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data;
|
||||
struct exynos_tmu_platform_data *pdata;
|
||||
struct thermal_sensor_conf *sensor_conf;
|
||||
int ret, i;
|
||||
struct exynos_tmu_data *data;
|
||||
int ret;
|
||||
|
||||
data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
|
||||
GFP_KERNEL);
|
||||
@ -849,9 +975,15 @@ static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
platform_set_drvdata(pdev, data);
|
||||
mutex_init(&data->lock);
|
||||
|
||||
data->tzd = thermal_zone_of_sensor_register(&pdev->dev, 0, data,
|
||||
&exynos_sensor_ops);
|
||||
if (IS_ERR(data->tzd)) {
|
||||
pr_err("thermal: tz: %p ERROR\n", data->tzd);
|
||||
return PTR_ERR(data->tzd);
|
||||
}
|
||||
ret = exynos_map_dt_data(pdev);
|
||||
if (ret)
|
||||
return ret;
|
||||
goto err_sensor;
|
||||
|
||||
pdata = data->pdata;
|
||||
|
||||
@ -860,20 +992,22 @@ static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
data->clk = devm_clk_get(&pdev->dev, "tmu_apbif");
|
||||
if (IS_ERR(data->clk)) {
|
||||
dev_err(&pdev->dev, "Failed to get clock\n");
|
||||
return PTR_ERR(data->clk);
|
||||
ret = PTR_ERR(data->clk);
|
||||
goto err_sensor;
|
||||
}
|
||||
|
||||
data->clk_sec = devm_clk_get(&pdev->dev, "tmu_triminfo_apbif");
|
||||
if (IS_ERR(data->clk_sec)) {
|
||||
if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) {
|
||||
dev_err(&pdev->dev, "Failed to get triminfo clock\n");
|
||||
return PTR_ERR(data->clk_sec);
|
||||
ret = PTR_ERR(data->clk_sec);
|
||||
goto err_sensor;
|
||||
}
|
||||
} else {
|
||||
ret = clk_prepare(data->clk_sec);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to get clock\n");
|
||||
return ret;
|
||||
goto err_sensor;
|
||||
}
|
||||
}
|
||||
|
||||
@ -889,45 +1023,6 @@ static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
exynos_tmu_control(pdev, true);
|
||||
|
||||
/* Allocate a structure to register with the exynos core thermal */
|
||||
sensor_conf = devm_kzalloc(&pdev->dev,
|
||||
sizeof(struct thermal_sensor_conf), GFP_KERNEL);
|
||||
if (!sensor_conf) {
|
||||
ret = -ENOMEM;
|
||||
goto err_clk;
|
||||
}
|
||||
sprintf(sensor_conf->name, "therm_zone%d", data->id);
|
||||
sensor_conf->read_temperature = (int (*)(void *))exynos_tmu_read;
|
||||
sensor_conf->write_emul_temp =
|
||||
(int (*)(void *, unsigned long))exynos_tmu_set_emulation;
|
||||
sensor_conf->driver_data = data;
|
||||
sensor_conf->trip_data.trip_count = pdata->trigger_enable[0] +
|
||||
pdata->trigger_enable[1] + pdata->trigger_enable[2]+
|
||||
pdata->trigger_enable[3];
|
||||
|
||||
for (i = 0; i < sensor_conf->trip_data.trip_count; i++) {
|
||||
sensor_conf->trip_data.trip_val[i] =
|
||||
pdata->threshold + pdata->trigger_levels[i];
|
||||
sensor_conf->trip_data.trip_type[i] =
|
||||
pdata->trigger_type[i];
|
||||
}
|
||||
|
||||
sensor_conf->trip_data.trigger_falling = pdata->threshold_falling;
|
||||
|
||||
sensor_conf->dev = &pdev->dev;
|
||||
/* Register the sensor with thermal management interface */
|
||||
ret = exynos_register_thermal(sensor_conf);
|
||||
if (ret) {
|
||||
if (ret != -EPROBE_DEFER)
|
||||
dev_err(&pdev->dev,
|
||||
"Failed to register thermal interface: %d\n",
|
||||
ret);
|
||||
goto err_clk;
|
||||
}
|
||||
data->reg_conf = sensor_conf;
|
||||
|
||||
ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
|
||||
IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data);
|
||||
if (ret) {
|
||||
@ -935,21 +1030,25 @@ static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
exynos_tmu_control(pdev, true);
|
||||
return 0;
|
||||
err_clk:
|
||||
clk_unprepare(data->clk);
|
||||
err_clk_sec:
|
||||
if (!IS_ERR(data->clk_sec))
|
||||
clk_unprepare(data->clk_sec);
|
||||
err_sensor:
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int exynos_tmu_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct thermal_zone_device *tzd = data->tzd;
|
||||
|
||||
exynos_unregister_thermal(data->reg_conf);
|
||||
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev, tzd);
|
||||
exynos_tmu_control(pdev, false);
|
||||
|
||||
clk_unprepare(data->clk);
|
||||
|
||||
@ -23,8 +23,7 @@
|
||||
#ifndef _EXYNOS_TMU_H
|
||||
#define _EXYNOS_TMU_H
|
||||
#include <linux/cpu_cooling.h>
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
#include <dt-bindings/thermal/thermal_exynos.h>
|
||||
|
||||
enum soc_type {
|
||||
SOC_ARCH_EXYNOS3250 = 1,
|
||||
@ -36,38 +35,9 @@ enum soc_type {
|
||||
SOC_ARCH_EXYNOS5420_TRIMINFO,
|
||||
SOC_ARCH_EXYNOS5440,
|
||||
};
|
||||
#include <dt-bindings/thermal/thermal_exynos.h>
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_platform_data
|
||||
* @threshold: basic temperature for generating interrupt
|
||||
* 25 <= threshold <= 125 [unit: degree Celsius]
|
||||
* @threshold_falling: differntial value for setting threshold
|
||||
* of temperature falling interrupt.
|
||||
* @trigger_levels: array for each interrupt levels
|
||||
* [unit: degree Celsius]
|
||||
* 0: temperature for trigger_level0 interrupt
|
||||
* condition for trigger_level0 interrupt:
|
||||
* current temperature > threshold + trigger_levels[0]
|
||||
* 1: temperature for trigger_level1 interrupt
|
||||
* condition for trigger_level1 interrupt:
|
||||
* current temperature > threshold + trigger_levels[1]
|
||||
* 2: temperature for trigger_level2 interrupt
|
||||
* condition for trigger_level2 interrupt:
|
||||
* current temperature > threshold + trigger_levels[2]
|
||||
* 3: temperature for trigger_level3 interrupt
|
||||
* condition for trigger_level3 interrupt:
|
||||
* current temperature > threshold + trigger_levels[3]
|
||||
* @trigger_type: defines the type of trigger. Possible values are,
|
||||
* THROTTLE_ACTIVE trigger type
|
||||
* THROTTLE_PASSIVE trigger type
|
||||
* SW_TRIP trigger type
|
||||
* HW_TRIP
|
||||
* @trigger_enable[]: array to denote which trigger levels are enabled.
|
||||
* 1 = enable trigger_level[] interrupt,
|
||||
* 0 = disable trigger_level[] interrupt
|
||||
* @max_trigger_level: max trigger level supported by the TMU
|
||||
* @non_hw_trigger_levels: number of defined non-hardware trigger levels
|
||||
* @gain: gain of amplifier in the positive-TC generator block
|
||||
* 0 < gain <= 15
|
||||
* @reference_voltage: reference voltage of amplifier
|
||||
@ -79,21 +49,12 @@ enum soc_type {
|
||||
* @efuse_value: platform defined fuse value
|
||||
* @min_efuse_value: minimum valid trimming data
|
||||
* @max_efuse_value: maximum valid trimming data
|
||||
* @first_point_trim: temp value of the first point trimming
|
||||
* @second_point_trim: temp value of the second point trimming
|
||||
* @default_temp_offset: default temperature offset in case of no trimming
|
||||
* @cal_type: calibration type for temperature
|
||||
*
|
||||
* This structure is required for configuration of exynos_tmu driver.
|
||||
*/
|
||||
struct exynos_tmu_platform_data {
|
||||
u8 threshold;
|
||||
u8 threshold_falling;
|
||||
u8 trigger_levels[MAX_TRIP_COUNT];
|
||||
enum trigger_type trigger_type[MAX_TRIP_COUNT];
|
||||
bool trigger_enable[MAX_TRIP_COUNT];
|
||||
u8 max_trigger_level;
|
||||
u8 non_hw_trigger_levels;
|
||||
u8 gain;
|
||||
u8 reference_voltage;
|
||||
u8 noise_cancel_mode;
|
||||
@ -110,24 +71,4 @@ struct exynos_tmu_platform_data {
|
||||
u32 cal_mode;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_init_data
|
||||
* @tmu_count: number of TMU instances.
|
||||
* @tmu_data: platform data of all TMU instances.
|
||||
* This structure is required to store data for multi-instance exynos tmu
|
||||
* driver.
|
||||
*/
|
||||
struct exynos_tmu_init_data {
|
||||
int tmu_count;
|
||||
struct exynos_tmu_platform_data tmu_data[];
|
||||
};
|
||||
|
||||
extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5260_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5420_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5440_default_tmu_data;
|
||||
|
||||
#endif /* _EXYNOS_TMU_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user