#
# Samsung thermal specific Makefile
#
-obj-$(CONFIG_EXYNOS_THERMAL) += exynos_soc_thermal.o
-exynos_soc_thermal-y := exynos_thermal.o
-exynos_soc_thermal-$(CONFIG_EXYNOS_THERMAL_CORE) += exynos_thermal_common.o
+obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o
+exynos_thermal-y := exynos_tmu.o
+exynos_thermal-$(CONFIG_EXYNOS_THERMAL_CORE) += exynos_thermal_common.o
+++ /dev/null
-/*
- * exynos_thermal.c - Samsung EXYNOS TMU (Thermal Management Unit)
- *
- * Copyright (C) 2011 Samsung Electronics
- * Donggeun Kim <dg77.kim@samsung.com>
- * Amit Daniel Kachhap <amit.kachhap@linaro.org>
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/exynos_thermal.h>
-
-#include "exynos_thermal_common.h"
-
-/* Exynos generic registers */
-#define EXYNOS_TMU_REG_TRIMINFO 0x0
-#define EXYNOS_TMU_REG_CONTROL 0x20
-#define EXYNOS_TMU_REG_STATUS 0x28
-#define EXYNOS_TMU_REG_CURRENT_TEMP 0x40
-#define EXYNOS_TMU_REG_INTEN 0x70
-#define EXYNOS_TMU_REG_INTSTAT 0x74
-#define EXYNOS_TMU_REG_INTCLEAR 0x78
-
-#define EXYNOS_TMU_TRIM_TEMP_MASK 0xff
-#define EXYNOS_TMU_GAIN_SHIFT 8
-#define EXYNOS_TMU_REF_VOLTAGE_SHIFT 24
-#define EXYNOS_TMU_CORE_ON 3
-#define EXYNOS_TMU_CORE_OFF 2
-#define EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET 50
-
-/* Exynos4210 specific registers */
-#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP 0x44
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL1 0x54
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL2 0x58
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL3 0x5C
-#define EXYNOS4210_TMU_REG_PAST_TEMP0 0x60
-#define EXYNOS4210_TMU_REG_PAST_TEMP1 0x64
-#define EXYNOS4210_TMU_REG_PAST_TEMP2 0x68
-#define EXYNOS4210_TMU_REG_PAST_TEMP3 0x6C
-
-#define EXYNOS4210_TMU_TRIG_LEVEL0_MASK 0x1
-#define EXYNOS4210_TMU_TRIG_LEVEL1_MASK 0x10
-#define EXYNOS4210_TMU_TRIG_LEVEL2_MASK 0x100
-#define EXYNOS4210_TMU_TRIG_LEVEL3_MASK 0x1000
-#define EXYNOS4210_TMU_INTCLEAR_VAL 0x1111
-
-/* Exynos5250 and Exynos4412 specific registers */
-#define EXYNOS_TMU_TRIMINFO_CON 0x14
-#define EXYNOS_THD_TEMP_RISE 0x50
-#define EXYNOS_THD_TEMP_FALL 0x54
-#define EXYNOS_EMUL_CON 0x80
-
-#define EXYNOS_TRIMINFO_RELOAD 0x1
-#define EXYNOS_TMU_CLEAR_RISE_INT 0x111
-#define EXYNOS_TMU_CLEAR_FALL_INT (0x111 << 12)
-#define EXYNOS_MUX_ADDR_VALUE 6
-#define EXYNOS_MUX_ADDR_SHIFT 20
-#define EXYNOS_TMU_TRIP_MODE_SHIFT 13
-
-#define EFUSE_MIN_VALUE 40
-#define EFUSE_MAX_VALUE 100
-
-#ifdef CONFIG_THERMAL_EMULATION
-#define EXYNOS_EMUL_TIME 0x57F0
-#define EXYNOS_EMUL_TIME_SHIFT 16
-#define EXYNOS_EMUL_DATA_SHIFT 8
-#define EXYNOS_EMUL_DATA_MASK 0xFF
-#define EXYNOS_EMUL_ENABLE 0x1
-#endif /* CONFIG_THERMAL_EMULATION */
-
-struct exynos_tmu_data {
- struct exynos_tmu_platform_data *pdata;
- struct resource *mem;
- void __iomem *base;
- int irq;
- enum soc_type soc;
- struct work_struct irq_work;
- struct mutex lock;
- struct clk *clk;
- u8 temp_error1, temp_error2;
-};
-
-/*
- * TMU treats temperature as a mapped temperature code.
- * The temperature is converted differently depending on the calibration type.
- */
-static int temp_to_code(struct exynos_tmu_data *data, u8 temp)
-{
- struct exynos_tmu_platform_data *pdata = data->pdata;
- int temp_code;
-
- if (data->soc == SOC_ARCH_EXYNOS4210)
- /* temp should range between 25 and 125 */
- if (temp < 25 || temp > 125) {
- temp_code = -EINVAL;
- goto out;
- }
-
- switch (pdata->cal_type) {
- case TYPE_TWO_POINT_TRIMMING:
- temp_code = (temp - 25) *
- (data->temp_error2 - data->temp_error1) /
- (85 - 25) + data->temp_error1;
- break;
- case TYPE_ONE_POINT_TRIMMING:
- temp_code = temp + data->temp_error1 - 25;
- break;
- default:
- temp_code = temp + EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET;
- break;
- }
-out:
- return temp_code;
-}
-
-/*
- * Calculate a temperature value from a temperature code.
- * The unit of the temperature is degree Celsius.
- */
-static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
-{
- struct exynos_tmu_platform_data *pdata = data->pdata;
- int temp;
-
- if (data->soc == SOC_ARCH_EXYNOS4210)
- /* temp_code should range between 75 and 175 */
- if (temp_code < 75 || temp_code > 175) {
- temp = -ENODATA;
- goto out;
- }
-
- switch (pdata->cal_type) {
- case TYPE_TWO_POINT_TRIMMING:
- temp = (temp_code - data->temp_error1) * (85 - 25) /
- (data->temp_error2 - data->temp_error1) + 25;
- break;
- case TYPE_ONE_POINT_TRIMMING:
- temp = temp_code - data->temp_error1 + 25;
- break;
- default:
- temp = temp_code - EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET;
- break;
- }
-out:
- return temp;
-}
-
-static int exynos_tmu_initialize(struct platform_device *pdev)
-{
- struct exynos_tmu_data *data = platform_get_drvdata(pdev);
- struct exynos_tmu_platform_data *pdata = data->pdata;
- unsigned int status, trim_info;
- unsigned int rising_threshold = 0, falling_threshold = 0;
- int ret = 0, threshold_code, i, trigger_levs = 0;
-
- mutex_lock(&data->lock);
- clk_enable(data->clk);
-
- status = readb(data->base + EXYNOS_TMU_REG_STATUS);
- if (!status) {
- ret = -EBUSY;
- goto out;
- }
-
- if (data->soc == SOC_ARCH_EXYNOS) {
- __raw_writel(EXYNOS_TRIMINFO_RELOAD,
- data->base + EXYNOS_TMU_TRIMINFO_CON);
- }
- /* Save trimming info in order to perform calibration */
- trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
- data->temp_error1 = trim_info & EXYNOS_TMU_TRIM_TEMP_MASK;
- data->temp_error2 = ((trim_info >> 8) & EXYNOS_TMU_TRIM_TEMP_MASK);
-
- if ((EFUSE_MIN_VALUE > data->temp_error1) ||
- (data->temp_error1 > EFUSE_MAX_VALUE) ||
- (data->temp_error2 != 0))
- data->temp_error1 = pdata->efuse_value;
-
- /* Count trigger levels to be enabled */
- for (i = 0; i < MAX_THRESHOLD_LEVS; i++)
- if (pdata->trigger_levels[i])
- trigger_levs++;
-
- if (data->soc == SOC_ARCH_EXYNOS4210) {
- /* Write temperature code for threshold */
- threshold_code = temp_to_code(data, pdata->threshold);
- if (threshold_code < 0) {
- ret = threshold_code;
- goto out;
- }
- writeb(threshold_code,
- data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
- for (i = 0; i < trigger_levs; i++)
- writeb(pdata->trigger_levels[i],
- data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + i * 4);
-
- writel(EXYNOS4210_TMU_INTCLEAR_VAL,
- data->base + EXYNOS_TMU_REG_INTCLEAR);
- } else if (data->soc == SOC_ARCH_EXYNOS) {
- /* Write temperature code for rising and falling threshold */
- for (i = 0; i < trigger_levs; i++) {
- threshold_code = temp_to_code(data,
- pdata->trigger_levels[i]);
- if (threshold_code < 0) {
- ret = threshold_code;
- goto out;
- }
- rising_threshold |= threshold_code << 8 * i;
- if (pdata->threshold_falling) {
- threshold_code = temp_to_code(data,
- pdata->trigger_levels[i] -
- pdata->threshold_falling);
- if (threshold_code > 0)
- falling_threshold |=
- threshold_code << 8 * i;
- }
- }
-
- writel(rising_threshold,
- data->base + EXYNOS_THD_TEMP_RISE);
- writel(falling_threshold,
- data->base + EXYNOS_THD_TEMP_FALL);
-
- writel(EXYNOS_TMU_CLEAR_RISE_INT | EXYNOS_TMU_CLEAR_FALL_INT,
- data->base + EXYNOS_TMU_REG_INTCLEAR);
- }
-out:
- clk_disable(data->clk);
- mutex_unlock(&data->lock);
-
- return ret;
-}
-
-static void exynos_tmu_control(struct platform_device *pdev, bool on)
-{
- struct exynos_tmu_data *data = platform_get_drvdata(pdev);
- struct exynos_tmu_platform_data *pdata = data->pdata;
- unsigned int con, interrupt_en;
-
- mutex_lock(&data->lock);
- clk_enable(data->clk);
-
- con = pdata->reference_voltage << EXYNOS_TMU_REF_VOLTAGE_SHIFT |
- pdata->gain << EXYNOS_TMU_GAIN_SHIFT;
-
- if (data->soc == SOC_ARCH_EXYNOS) {
- con |= pdata->noise_cancel_mode << EXYNOS_TMU_TRIP_MODE_SHIFT;
- con |= (EXYNOS_MUX_ADDR_VALUE << EXYNOS_MUX_ADDR_SHIFT);
- }
-
- if (on) {
- con |= EXYNOS_TMU_CORE_ON;
- interrupt_en = pdata->trigger_level3_en << 12 |
- pdata->trigger_level2_en << 8 |
- pdata->trigger_level1_en << 4 |
- pdata->trigger_level0_en;
- if (pdata->threshold_falling)
- interrupt_en |= interrupt_en << 16;
- } else {
- con |= EXYNOS_TMU_CORE_OFF;
- interrupt_en = 0; /* Disable all interrupts */
- }
- writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN);
- writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
-
- clk_disable(data->clk);
- mutex_unlock(&data->lock);
-}
-
-static int exynos_tmu_read(struct exynos_tmu_data *data)
-{
- u8 temp_code;
- int temp;
-
- mutex_lock(&data->lock);
- clk_enable(data->clk);
-
- temp_code = readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
- temp = code_to_temp(data, temp_code);
-
- clk_disable(data->clk);
- mutex_unlock(&data->lock);
-
- return temp;
-}
-
-#ifdef CONFIG_THERMAL_EMULATION
-static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
-{
- struct exynos_tmu_data *data = drv_data;
- unsigned int reg;
- int ret = -EINVAL;
-
- if (data->soc == SOC_ARCH_EXYNOS4210)
- goto out;
-
- if (temp && temp < MCELSIUS)
- goto out;
-
- mutex_lock(&data->lock);
- clk_enable(data->clk);
-
- reg = readl(data->base + EXYNOS_EMUL_CON);
-
- if (temp) {
- temp /= MCELSIUS;
-
- reg = (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT) |
- (temp_to_code(data, temp)
- << EXYNOS_EMUL_DATA_SHIFT) | EXYNOS_EMUL_ENABLE;
- } else {
- reg &= ~EXYNOS_EMUL_ENABLE;
- }
-
- writel(reg, data->base + EXYNOS_EMUL_CON);
-
- clk_disable(data->clk);
- mutex_unlock(&data->lock);
- return 0;
-out:
- return ret;
-}
-#else
-static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
- { return -EINVAL; }
-#endif/*CONFIG_THERMAL_EMULATION*/
-
-static void exynos_tmu_work(struct work_struct *work)
-{
- struct exynos_tmu_data *data = container_of(work,
- struct exynos_tmu_data, irq_work);
-
- exynos_report_trigger();
- mutex_lock(&data->lock);
- clk_enable(data->clk);
- if (data->soc == SOC_ARCH_EXYNOS)
- writel(EXYNOS_TMU_CLEAR_RISE_INT |
- EXYNOS_TMU_CLEAR_FALL_INT,
- data->base + EXYNOS_TMU_REG_INTCLEAR);
- else
- writel(EXYNOS4210_TMU_INTCLEAR_VAL,
- data->base + EXYNOS_TMU_REG_INTCLEAR);
- clk_disable(data->clk);
- mutex_unlock(&data->lock);
-
- enable_irq(data->irq);
-}
-
-static irqreturn_t exynos_tmu_irq(int irq, void *id)
-{
- struct exynos_tmu_data *data = id;
-
- disable_irq_nosync(irq);
- schedule_work(&data->irq_work);
-
- return IRQ_HANDLED;
-}
-static struct thermal_sensor_conf exynos_sensor_conf = {
- .name = "exynos-therm",
- .read_temperature = (int (*)(void *))exynos_tmu_read,
- .write_emul_temp = exynos_tmu_set_emulation,
-};
-
-#if defined(CONFIG_CPU_EXYNOS4210)
-static struct exynos_tmu_platform_data const exynos4210_default_tmu_data = {
- .threshold = 80,
- .trigger_levels[0] = 5,
- .trigger_levels[1] = 20,
- .trigger_levels[2] = 30,
- .trigger_level0_en = 1,
- .trigger_level1_en = 1,
- .trigger_level2_en = 1,
- .trigger_level3_en = 0,
- .gain = 15,
- .reference_voltage = 7,
- .cal_type = TYPE_ONE_POINT_TRIMMING,
- .freq_tab[0] = {
- .freq_clip_max = 800 * 1000,
- .temp_level = 85,
- },
- .freq_tab[1] = {
- .freq_clip_max = 200 * 1000,
- .temp_level = 100,
- },
- .freq_tab_count = 2,
- .type = SOC_ARCH_EXYNOS4210,
-};
-#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
-#else
-#define EXYNOS4210_TMU_DRV_DATA (NULL)
-#endif
-
-#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412) || \
- defined(CONFIG_SOC_EXYNOS4212)
-static struct exynos_tmu_platform_data const exynos_default_tmu_data = {
- .threshold_falling = 10,
- .trigger_levels[0] = 85,
- .trigger_levels[1] = 103,
- .trigger_levels[2] = 110,
- .trigger_level0_en = 1,
- .trigger_level1_en = 1,
- .trigger_level2_en = 1,
- .trigger_level3_en = 0,
- .gain = 8,
- .reference_voltage = 16,
- .noise_cancel_mode = 4,
- .cal_type = TYPE_ONE_POINT_TRIMMING,
- .efuse_value = 55,
- .freq_tab[0] = {
- .freq_clip_max = 800 * 1000,
- .temp_level = 85,
- },
- .freq_tab[1] = {
- .freq_clip_max = 200 * 1000,
- .temp_level = 103,
- },
- .freq_tab_count = 2,
- .type = SOC_ARCH_EXYNOS,
-};
-#define EXYNOS_TMU_DRV_DATA (&exynos_default_tmu_data)
-#else
-#define EXYNOS_TMU_DRV_DATA (NULL)
-#endif
-
-#ifdef CONFIG_OF
-static const struct of_device_id exynos_tmu_match[] = {
- {
- .compatible = "samsung,exynos4210-tmu",
- .data = (void *)EXYNOS4210_TMU_DRV_DATA,
- },
- {
- .compatible = "samsung,exynos4412-tmu",
- .data = (void *)EXYNOS_TMU_DRV_DATA,
- },
- {
- .compatible = "samsung,exynos5250-tmu",
- .data = (void *)EXYNOS_TMU_DRV_DATA,
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, exynos_tmu_match);
-#endif
-
-static struct platform_device_id exynos_tmu_driver_ids[] = {
- {
- .name = "exynos4210-tmu",
- .driver_data = (kernel_ulong_t)EXYNOS4210_TMU_DRV_DATA,
- },
- {
- .name = "exynos5250-tmu",
- .driver_data = (kernel_ulong_t)EXYNOS_TMU_DRV_DATA,
- },
- { },
-};
-MODULE_DEVICE_TABLE(platform, exynos_tmu_driver_ids);
-
-static inline struct exynos_tmu_platform_data *exynos_get_driver_data(
- struct platform_device *pdev)
-{
-#ifdef CONFIG_OF
- if (pdev->dev.of_node) {
- const struct of_device_id *match;
- match = of_match_node(exynos_tmu_match, pdev->dev.of_node);
- if (!match)
- return NULL;
- return (struct exynos_tmu_platform_data *) match->data;
- }
-#endif
- return (struct exynos_tmu_platform_data *)
- platform_get_device_id(pdev)->driver_data;
-}
-
-static int exynos_tmu_probe(struct platform_device *pdev)
-{
- struct exynos_tmu_data *data;
- struct exynos_tmu_platform_data *pdata = pdev->dev.platform_data;
- int ret, i;
-
- if (!pdata)
- pdata = exynos_get_driver_data(pdev);
-
- if (!pdata) {
- dev_err(&pdev->dev, "No platform init data supplied.\n");
- return -ENODEV;
- }
- data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
- GFP_KERNEL);
- if (!data) {
- dev_err(&pdev->dev, "Failed to allocate driver structure\n");
- return -ENOMEM;
- }
-
- data->irq = platform_get_irq(pdev, 0);
- if (data->irq < 0) {
- dev_err(&pdev->dev, "Failed to get platform irq\n");
- return data->irq;
- }
-
- INIT_WORK(&data->irq_work, exynos_tmu_work);
-
- data->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- data->base = devm_ioremap_resource(&pdev->dev, data->mem);
- if (IS_ERR(data->base))
- return PTR_ERR(data->base);
-
- ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
- IRQF_TRIGGER_RISING, "exynos-tmu", data);
- if (ret) {
- dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
- return ret;
- }
-
- 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 = clk_prepare(data->clk);
- if (ret)
- return ret;
-
- if (pdata->type == SOC_ARCH_EXYNOS ||
- pdata->type == SOC_ARCH_EXYNOS4210)
- data->soc = pdata->type;
- else {
- ret = -EINVAL;
- dev_err(&pdev->dev, "Platform not supported\n");
- goto err_clk;
- }
-
- data->pdata = pdata;
- platform_set_drvdata(pdev, data);
- mutex_init(&data->lock);
-
- ret = exynos_tmu_initialize(pdev);
- if (ret) {
- dev_err(&pdev->dev, "Failed to initialize TMU\n");
- goto err_clk;
- }
-
- exynos_tmu_control(pdev, true);
-
- /* Register the sensor with thermal management interface */
- (&exynos_sensor_conf)->private_data = data;
- exynos_sensor_conf.trip_data.trip_count = pdata->trigger_level0_en +
- pdata->trigger_level1_en + pdata->trigger_level2_en +
- pdata->trigger_level3_en;
-
- for (i = 0; i < exynos_sensor_conf.trip_data.trip_count; i++)
- exynos_sensor_conf.trip_data.trip_val[i] =
- pdata->threshold + pdata->trigger_levels[i];
-
- exynos_sensor_conf.trip_data.trigger_falling = pdata->threshold_falling;
-
- exynos_sensor_conf.cooling_data.freq_clip_count =
- pdata->freq_tab_count;
- for (i = 0; i < pdata->freq_tab_count; i++) {
- exynos_sensor_conf.cooling_data.freq_data[i].freq_clip_max =
- pdata->freq_tab[i].freq_clip_max;
- exynos_sensor_conf.cooling_data.freq_data[i].temp_level =
- pdata->freq_tab[i].temp_level;
- }
-
- ret = exynos_register_thermal(&exynos_sensor_conf);
- if (ret) {
- dev_err(&pdev->dev, "Failed to register thermal interface\n");
- goto err_clk;
- }
-
- return 0;
-err_clk:
- clk_unprepare(data->clk);
- return ret;
-}
-
-static int exynos_tmu_remove(struct platform_device *pdev)
-{
- struct exynos_tmu_data *data = platform_get_drvdata(pdev);
-
- exynos_tmu_control(pdev, false);
-
- exynos_unregister_thermal();
-
- clk_unprepare(data->clk);
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int exynos_tmu_suspend(struct device *dev)
-{
- exynos_tmu_control(to_platform_device(dev), false);
-
- return 0;
-}
-
-static int exynos_tmu_resume(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- exynos_tmu_initialize(pdev);
- exynos_tmu_control(pdev, true);
-
- return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(exynos_tmu_pm,
- exynos_tmu_suspend, exynos_tmu_resume);
-#define EXYNOS_TMU_PM (&exynos_tmu_pm)
-#else
-#define EXYNOS_TMU_PM NULL
-#endif
-
-static struct platform_driver exynos_tmu_driver = {
- .driver = {
- .name = "exynos-tmu",
- .owner = THIS_MODULE,
- .pm = EXYNOS_TMU_PM,
- .of_match_table = of_match_ptr(exynos_tmu_match),
- },
- .probe = exynos_tmu_probe,
- .remove = exynos_tmu_remove,
- .id_table = exynos_tmu_driver_ids,
-};
-
-module_platform_driver(exynos_tmu_driver);
-
-MODULE_DESCRIPTION("EXYNOS TMU Driver");
-MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:exynos-tmu");
--- /dev/null
+/*
+ * exynos_tmu.c - Samsung EXYNOS TMU (Thermal Management Unit)
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ * Donggeun Kim <dg77.kim@samsung.com>
+ * Amit Daniel Kachhap <amit.kachhap@linaro.org>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/exynos_thermal.h>
+
+#include "exynos_thermal_common.h"
+
+/* Exynos generic registers */
+#define EXYNOS_TMU_REG_TRIMINFO 0x0
+#define EXYNOS_TMU_REG_CONTROL 0x20
+#define EXYNOS_TMU_REG_STATUS 0x28
+#define EXYNOS_TMU_REG_CURRENT_TEMP 0x40
+#define EXYNOS_TMU_REG_INTEN 0x70
+#define EXYNOS_TMU_REG_INTSTAT 0x74
+#define EXYNOS_TMU_REG_INTCLEAR 0x78
+
+#define EXYNOS_TMU_TRIM_TEMP_MASK 0xff
+#define EXYNOS_TMU_GAIN_SHIFT 8
+#define EXYNOS_TMU_REF_VOLTAGE_SHIFT 24
+#define EXYNOS_TMU_CORE_ON 3
+#define EXYNOS_TMU_CORE_OFF 2
+#define EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET 50
+
+/* Exynos4210 specific registers */
+#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP 0x44
+#define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
+#define EXYNOS4210_TMU_REG_TRIG_LEVEL1 0x54
+#define EXYNOS4210_TMU_REG_TRIG_LEVEL2 0x58
+#define EXYNOS4210_TMU_REG_TRIG_LEVEL3 0x5C
+#define EXYNOS4210_TMU_REG_PAST_TEMP0 0x60
+#define EXYNOS4210_TMU_REG_PAST_TEMP1 0x64
+#define EXYNOS4210_TMU_REG_PAST_TEMP2 0x68
+#define EXYNOS4210_TMU_REG_PAST_TEMP3 0x6C
+
+#define EXYNOS4210_TMU_TRIG_LEVEL0_MASK 0x1
+#define EXYNOS4210_TMU_TRIG_LEVEL1_MASK 0x10
+#define EXYNOS4210_TMU_TRIG_LEVEL2_MASK 0x100
+#define EXYNOS4210_TMU_TRIG_LEVEL3_MASK 0x1000
+#define EXYNOS4210_TMU_INTCLEAR_VAL 0x1111
+
+/* Exynos5250 and Exynos4412 specific registers */
+#define EXYNOS_TMU_TRIMINFO_CON 0x14
+#define EXYNOS_THD_TEMP_RISE 0x50
+#define EXYNOS_THD_TEMP_FALL 0x54
+#define EXYNOS_EMUL_CON 0x80
+
+#define EXYNOS_TRIMINFO_RELOAD 0x1
+#define EXYNOS_TMU_CLEAR_RISE_INT 0x111
+#define EXYNOS_TMU_CLEAR_FALL_INT (0x111 << 12)
+#define EXYNOS_MUX_ADDR_VALUE 6
+#define EXYNOS_MUX_ADDR_SHIFT 20
+#define EXYNOS_TMU_TRIP_MODE_SHIFT 13
+
+#define EFUSE_MIN_VALUE 40
+#define EFUSE_MAX_VALUE 100
+
+#ifdef CONFIG_THERMAL_EMULATION
+#define EXYNOS_EMUL_TIME 0x57F0
+#define EXYNOS_EMUL_TIME_SHIFT 16
+#define EXYNOS_EMUL_DATA_SHIFT 8
+#define EXYNOS_EMUL_DATA_MASK 0xFF
+#define EXYNOS_EMUL_ENABLE 0x1
+#endif /* CONFIG_THERMAL_EMULATION */
+
+struct exynos_tmu_data {
+ struct exynos_tmu_platform_data *pdata;
+ struct resource *mem;
+ void __iomem *base;
+ int irq;
+ enum soc_type soc;
+ struct work_struct irq_work;
+ struct mutex lock;
+ struct clk *clk;
+ u8 temp_error1, temp_error2;
+};
+
+/*
+ * TMU treats temperature as a mapped temperature code.
+ * The temperature is converted differently depending on the calibration type.
+ */
+static int temp_to_code(struct exynos_tmu_data *data, u8 temp)
+{
+ struct exynos_tmu_platform_data *pdata = data->pdata;
+ int temp_code;
+
+ if (data->soc == SOC_ARCH_EXYNOS4210)
+ /* temp should range between 25 and 125 */
+ if (temp < 25 || temp > 125) {
+ temp_code = -EINVAL;
+ goto out;
+ }
+
+ switch (pdata->cal_type) {
+ case TYPE_TWO_POINT_TRIMMING:
+ temp_code = (temp - 25) *
+ (data->temp_error2 - data->temp_error1) /
+ (85 - 25) + data->temp_error1;
+ break;
+ case TYPE_ONE_POINT_TRIMMING:
+ temp_code = temp + data->temp_error1 - 25;
+ break;
+ default:
+ temp_code = temp + EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET;
+ break;
+ }
+out:
+ return temp_code;
+}
+
+/*
+ * Calculate a temperature value from a temperature code.
+ * The unit of the temperature is degree Celsius.
+ */
+static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
+{
+ struct exynos_tmu_platform_data *pdata = data->pdata;
+ int temp;
+
+ if (data->soc == SOC_ARCH_EXYNOS4210)
+ /* temp_code should range between 75 and 175 */
+ if (temp_code < 75 || temp_code > 175) {
+ temp = -ENODATA;
+ goto out;
+ }
+
+ switch (pdata->cal_type) {
+ case TYPE_TWO_POINT_TRIMMING:
+ temp = (temp_code - data->temp_error1) * (85 - 25) /
+ (data->temp_error2 - data->temp_error1) + 25;
+ break;
+ case TYPE_ONE_POINT_TRIMMING:
+ temp = temp_code - data->temp_error1 + 25;
+ break;
+ default:
+ temp = temp_code - EXYNOS_TMU_DEF_CODE_TO_TEMP_OFFSET;
+ break;
+ }
+out:
+ return temp;
+}
+
+static int exynos_tmu_initialize(struct platform_device *pdev)
+{
+ struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+ struct exynos_tmu_platform_data *pdata = data->pdata;
+ unsigned int status, trim_info;
+ unsigned int rising_threshold = 0, falling_threshold = 0;
+ int ret = 0, threshold_code, i, trigger_levs = 0;
+
+ mutex_lock(&data->lock);
+ clk_enable(data->clk);
+
+ status = readb(data->base + EXYNOS_TMU_REG_STATUS);
+ if (!status) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (data->soc == SOC_ARCH_EXYNOS) {
+ __raw_writel(EXYNOS_TRIMINFO_RELOAD,
+ data->base + EXYNOS_TMU_TRIMINFO_CON);
+ }
+ /* Save trimming info in order to perform calibration */
+ trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
+ data->temp_error1 = trim_info & EXYNOS_TMU_TRIM_TEMP_MASK;
+ data->temp_error2 = ((trim_info >> 8) & EXYNOS_TMU_TRIM_TEMP_MASK);
+
+ if ((EFUSE_MIN_VALUE > data->temp_error1) ||
+ (data->temp_error1 > EFUSE_MAX_VALUE) ||
+ (data->temp_error2 != 0))
+ data->temp_error1 = pdata->efuse_value;
+
+ /* Count trigger levels to be enabled */
+ for (i = 0; i < MAX_THRESHOLD_LEVS; i++)
+ if (pdata->trigger_levels[i])
+ trigger_levs++;
+
+ if (data->soc == SOC_ARCH_EXYNOS4210) {
+ /* Write temperature code for threshold */
+ threshold_code = temp_to_code(data, pdata->threshold);
+ if (threshold_code < 0) {
+ ret = threshold_code;
+ goto out;
+ }
+ writeb(threshold_code,
+ data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
+ for (i = 0; i < trigger_levs; i++)
+ writeb(pdata->trigger_levels[i],
+ data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + i * 4);
+
+ writel(EXYNOS4210_TMU_INTCLEAR_VAL,
+ data->base + EXYNOS_TMU_REG_INTCLEAR);
+ } else if (data->soc == SOC_ARCH_EXYNOS) {
+ /* Write temperature code for rising and falling threshold */
+ for (i = 0; i < trigger_levs; i++) {
+ threshold_code = temp_to_code(data,
+ pdata->trigger_levels[i]);
+ if (threshold_code < 0) {
+ ret = threshold_code;
+ goto out;
+ }
+ rising_threshold |= threshold_code << 8 * i;
+ if (pdata->threshold_falling) {
+ threshold_code = temp_to_code(data,
+ pdata->trigger_levels[i] -
+ pdata->threshold_falling);
+ if (threshold_code > 0)
+ falling_threshold |=
+ threshold_code << 8 * i;
+ }
+ }
+
+ writel(rising_threshold,
+ data->base + EXYNOS_THD_TEMP_RISE);
+ writel(falling_threshold,
+ data->base + EXYNOS_THD_TEMP_FALL);
+
+ writel(EXYNOS_TMU_CLEAR_RISE_INT | EXYNOS_TMU_CLEAR_FALL_INT,
+ data->base + EXYNOS_TMU_REG_INTCLEAR);
+ }
+out:
+ clk_disable(data->clk);
+ mutex_unlock(&data->lock);
+
+ return ret;
+}
+
+static void exynos_tmu_control(struct platform_device *pdev, bool on)
+{
+ struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+ struct exynos_tmu_platform_data *pdata = data->pdata;
+ unsigned int con, interrupt_en;
+
+ mutex_lock(&data->lock);
+ clk_enable(data->clk);
+
+ con = pdata->reference_voltage << EXYNOS_TMU_REF_VOLTAGE_SHIFT |
+ pdata->gain << EXYNOS_TMU_GAIN_SHIFT;
+
+ if (data->soc == SOC_ARCH_EXYNOS) {
+ con |= pdata->noise_cancel_mode << EXYNOS_TMU_TRIP_MODE_SHIFT;
+ con |= (EXYNOS_MUX_ADDR_VALUE << EXYNOS_MUX_ADDR_SHIFT);
+ }
+
+ if (on) {
+ con |= EXYNOS_TMU_CORE_ON;
+ interrupt_en = pdata->trigger_level3_en << 12 |
+ pdata->trigger_level2_en << 8 |
+ pdata->trigger_level1_en << 4 |
+ pdata->trigger_level0_en;
+ if (pdata->threshold_falling)
+ interrupt_en |= interrupt_en << 16;
+ } else {
+ con |= EXYNOS_TMU_CORE_OFF;
+ interrupt_en = 0; /* Disable all interrupts */
+ }
+ writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN);
+ writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+
+ clk_disable(data->clk);
+ mutex_unlock(&data->lock);
+}
+
+static int exynos_tmu_read(struct exynos_tmu_data *data)
+{
+ u8 temp_code;
+ int temp;
+
+ mutex_lock(&data->lock);
+ clk_enable(data->clk);
+
+ temp_code = readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
+ temp = code_to_temp(data, temp_code);
+
+ clk_disable(data->clk);
+ mutex_unlock(&data->lock);
+
+ return temp;
+}
+
+#ifdef CONFIG_THERMAL_EMULATION
+static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
+{
+ struct exynos_tmu_data *data = drv_data;
+ unsigned int reg;
+ int ret = -EINVAL;
+
+ if (data->soc == SOC_ARCH_EXYNOS4210)
+ goto out;
+
+ if (temp && temp < MCELSIUS)
+ goto out;
+
+ mutex_lock(&data->lock);
+ clk_enable(data->clk);
+
+ reg = readl(data->base + EXYNOS_EMUL_CON);
+
+ if (temp) {
+ temp /= MCELSIUS;
+
+ reg = (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT) |
+ (temp_to_code(data, temp)
+ << EXYNOS_EMUL_DATA_SHIFT) | EXYNOS_EMUL_ENABLE;
+ } else {
+ reg &= ~EXYNOS_EMUL_ENABLE;
+ }
+
+ writel(reg, data->base + EXYNOS_EMUL_CON);
+
+ clk_disable(data->clk);
+ mutex_unlock(&data->lock);
+ return 0;
+out:
+ return ret;
+}
+#else
+static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
+ { return -EINVAL; }
+#endif/*CONFIG_THERMAL_EMULATION*/
+
+static void exynos_tmu_work(struct work_struct *work)
+{
+ struct exynos_tmu_data *data = container_of(work,
+ struct exynos_tmu_data, irq_work);
+
+ exynos_report_trigger();
+ mutex_lock(&data->lock);
+ clk_enable(data->clk);
+ if (data->soc == SOC_ARCH_EXYNOS)
+ writel(EXYNOS_TMU_CLEAR_RISE_INT |
+ EXYNOS_TMU_CLEAR_FALL_INT,
+ data->base + EXYNOS_TMU_REG_INTCLEAR);
+ else
+ writel(EXYNOS4210_TMU_INTCLEAR_VAL,
+ data->base + EXYNOS_TMU_REG_INTCLEAR);
+ clk_disable(data->clk);
+ mutex_unlock(&data->lock);
+
+ enable_irq(data->irq);
+}
+
+static irqreturn_t exynos_tmu_irq(int irq, void *id)
+{
+ struct exynos_tmu_data *data = id;
+
+ disable_irq_nosync(irq);
+ schedule_work(&data->irq_work);
+
+ return IRQ_HANDLED;
+}
+static struct thermal_sensor_conf exynos_sensor_conf = {
+ .name = "exynos-therm",
+ .read_temperature = (int (*)(void *))exynos_tmu_read,
+ .write_emul_temp = exynos_tmu_set_emulation,
+};
+
+#if defined(CONFIG_CPU_EXYNOS4210)
+static struct exynos_tmu_platform_data const exynos4210_default_tmu_data = {
+ .threshold = 80,
+ .trigger_levels[0] = 5,
+ .trigger_levels[1] = 20,
+ .trigger_levels[2] = 30,
+ .trigger_level0_en = 1,
+ .trigger_level1_en = 1,
+ .trigger_level2_en = 1,
+ .trigger_level3_en = 0,
+ .gain = 15,
+ .reference_voltage = 7,
+ .cal_type = TYPE_ONE_POINT_TRIMMING,
+ .freq_tab[0] = {
+ .freq_clip_max = 800 * 1000,
+ .temp_level = 85,
+ },
+ .freq_tab[1] = {
+ .freq_clip_max = 200 * 1000,
+ .temp_level = 100,
+ },
+ .freq_tab_count = 2,
+ .type = SOC_ARCH_EXYNOS4210,
+};
+#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
+#else
+#define EXYNOS4210_TMU_DRV_DATA (NULL)
+#endif
+
+#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412) || \
+ defined(CONFIG_SOC_EXYNOS4212)
+static struct exynos_tmu_platform_data const exynos_default_tmu_data = {
+ .threshold_falling = 10,
+ .trigger_levels[0] = 85,
+ .trigger_levels[1] = 103,
+ .trigger_levels[2] = 110,
+ .trigger_level0_en = 1,
+ .trigger_level1_en = 1,
+ .trigger_level2_en = 1,
+ .trigger_level3_en = 0,
+ .gain = 8,
+ .reference_voltage = 16,
+ .noise_cancel_mode = 4,
+ .cal_type = TYPE_ONE_POINT_TRIMMING,
+ .efuse_value = 55,
+ .freq_tab[0] = {
+ .freq_clip_max = 800 * 1000,
+ .temp_level = 85,
+ },
+ .freq_tab[1] = {
+ .freq_clip_max = 200 * 1000,
+ .temp_level = 103,
+ },
+ .freq_tab_count = 2,
+ .type = SOC_ARCH_EXYNOS,
+};
+#define EXYNOS_TMU_DRV_DATA (&exynos_default_tmu_data)
+#else
+#define EXYNOS_TMU_DRV_DATA (NULL)
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_tmu_match[] = {
+ {
+ .compatible = "samsung,exynos4210-tmu",
+ .data = (void *)EXYNOS4210_TMU_DRV_DATA,
+ },
+ {
+ .compatible = "samsung,exynos4412-tmu",
+ .data = (void *)EXYNOS_TMU_DRV_DATA,
+ },
+ {
+ .compatible = "samsung,exynos5250-tmu",
+ .data = (void *)EXYNOS_TMU_DRV_DATA,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_tmu_match);
+#endif
+
+static struct platform_device_id exynos_tmu_driver_ids[] = {
+ {
+ .name = "exynos4210-tmu",
+ .driver_data = (kernel_ulong_t)EXYNOS4210_TMU_DRV_DATA,
+ },
+ {
+ .name = "exynos5250-tmu",
+ .driver_data = (kernel_ulong_t)EXYNOS_TMU_DRV_DATA,
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, exynos_tmu_driver_ids);
+
+static inline struct exynos_tmu_platform_data *exynos_get_driver_data(
+ struct platform_device *pdev)
+{
+#ifdef CONFIG_OF
+ if (pdev->dev.of_node) {
+ const struct of_device_id *match;
+ match = of_match_node(exynos_tmu_match, pdev->dev.of_node);
+ if (!match)
+ return NULL;
+ return (struct exynos_tmu_platform_data *) match->data;
+ }
+#endif
+ return (struct exynos_tmu_platform_data *)
+ platform_get_device_id(pdev)->driver_data;
+}
+
+static int exynos_tmu_probe(struct platform_device *pdev)
+{
+ struct exynos_tmu_data *data;
+ struct exynos_tmu_platform_data *pdata = pdev->dev.platform_data;
+ int ret, i;
+
+ if (!pdata)
+ pdata = exynos_get_driver_data(pdev);
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "No platform init data supplied.\n");
+ return -ENODEV;
+ }
+ data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
+ GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev, "Failed to allocate driver structure\n");
+ return -ENOMEM;
+ }
+
+ data->irq = platform_get_irq(pdev, 0);
+ if (data->irq < 0) {
+ dev_err(&pdev->dev, "Failed to get platform irq\n");
+ return data->irq;
+ }
+
+ INIT_WORK(&data->irq_work, exynos_tmu_work);
+
+ data->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ data->base = devm_ioremap_resource(&pdev->dev, data->mem);
+ if (IS_ERR(data->base))
+ return PTR_ERR(data->base);
+
+ ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
+ IRQF_TRIGGER_RISING, "exynos-tmu", data);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
+ return ret;
+ }
+
+ 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 = clk_prepare(data->clk);
+ if (ret)
+ return ret;
+
+ if (pdata->type == SOC_ARCH_EXYNOS ||
+ pdata->type == SOC_ARCH_EXYNOS4210)
+ data->soc = pdata->type;
+ else {
+ ret = -EINVAL;
+ dev_err(&pdev->dev, "Platform not supported\n");
+ goto err_clk;
+ }
+
+ data->pdata = pdata;
+ platform_set_drvdata(pdev, data);
+ mutex_init(&data->lock);
+
+ ret = exynos_tmu_initialize(pdev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to initialize TMU\n");
+ goto err_clk;
+ }
+
+ exynos_tmu_control(pdev, true);
+
+ /* Register the sensor with thermal management interface */
+ (&exynos_sensor_conf)->private_data = data;
+ exynos_sensor_conf.trip_data.trip_count = pdata->trigger_level0_en +
+ pdata->trigger_level1_en + pdata->trigger_level2_en +
+ pdata->trigger_level3_en;
+
+ for (i = 0; i < exynos_sensor_conf.trip_data.trip_count; i++)
+ exynos_sensor_conf.trip_data.trip_val[i] =
+ pdata->threshold + pdata->trigger_levels[i];
+
+ exynos_sensor_conf.trip_data.trigger_falling = pdata->threshold_falling;
+
+ exynos_sensor_conf.cooling_data.freq_clip_count =
+ pdata->freq_tab_count;
+ for (i = 0; i < pdata->freq_tab_count; i++) {
+ exynos_sensor_conf.cooling_data.freq_data[i].freq_clip_max =
+ pdata->freq_tab[i].freq_clip_max;
+ exynos_sensor_conf.cooling_data.freq_data[i].temp_level =
+ pdata->freq_tab[i].temp_level;
+ }
+
+ ret = exynos_register_thermal(&exynos_sensor_conf);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to register thermal interface\n");
+ goto err_clk;
+ }
+
+ return 0;
+err_clk:
+ clk_unprepare(data->clk);
+ return ret;
+}
+
+static int exynos_tmu_remove(struct platform_device *pdev)
+{
+ struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+
+ exynos_tmu_control(pdev, false);
+
+ exynos_unregister_thermal();
+
+ clk_unprepare(data->clk);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int exynos_tmu_suspend(struct device *dev)
+{
+ exynos_tmu_control(to_platform_device(dev), false);
+
+ return 0;
+}
+
+static int exynos_tmu_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ exynos_tmu_initialize(pdev);
+ exynos_tmu_control(pdev, true);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(exynos_tmu_pm,
+ exynos_tmu_suspend, exynos_tmu_resume);
+#define EXYNOS_TMU_PM (&exynos_tmu_pm)
+#else
+#define EXYNOS_TMU_PM NULL
+#endif
+
+static struct platform_driver exynos_tmu_driver = {
+ .driver = {
+ .name = "exynos-tmu",
+ .owner = THIS_MODULE,
+ .pm = EXYNOS_TMU_PM,
+ .of_match_table = of_match_ptr(exynos_tmu_match),
+ },
+ .probe = exynos_tmu_probe,
+ .remove = exynos_tmu_remove,
+ .id_table = exynos_tmu_driver_ids,
+};
+
+module_platform_driver(exynos_tmu_driver);
+
+MODULE_DESCRIPTION("EXYNOS TMU Driver");
+MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:exynos-tmu");
projects / deliverable / linux.git / commitdiff
