Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 1201 insertions, 0 deletions

diff --git a/drivers/thermal/samsung/Kconfig b/drivers/thermal/samsung/Kconfig
new file mode 100644
index 0000000000..f4eff5a41a
--- /dev/null
+++ b/drivers/thermal/samsung/Kconfig
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config EXYNOS_THERMAL
+	tristate "Exynos thermal management unit driver"
+	depends on THERMAL_OF
+	depends on HAS_IOMEM
+	help
+	  If you say yes here you get support for the TMU (Thermal Management
+	  Unit) driver for Samsung Exynos series of SoCs. This driver initialises
+	  the TMU, reports temperature and handles cooling action if defined.
+	  This driver uses the Exynos core thermal APIs and TMU configuration
+	  data from the supported SoCs.
diff --git a/drivers/thermal/samsung/Makefile b/drivers/thermal/samsung/Makefile
new file mode 100644
index 0000000000..f139407150
--- /dev/null
+++ b/drivers/thermal/samsung/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Samsung thermal specific Makefile
+#
+obj-$(CONFIG_EXYNOS_THERMAL)			+= exynos_thermal.o
+exynos_thermal-y				:= exynos_tmu.o
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
new file mode 100644
index 0000000000..e5bc2c8201
--- /dev/null
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -0,0 +1,1184 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * exynos_tmu.c - Samsung Exynos TMU (Thermal Management Unit)
+ *
+ *  Copyright (C) 2014 Samsung Electronics
+ *  Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
+ *  Lukasz Majewski <l.majewski@samsung.com>
+ *
+ *  Copyright (C) 2011 Samsung Electronics
+ *  Donggeun Kim <dg77.kim@samsung.com>
+ *  Amit Daniel Kachhap <amit.kachhap@linaro.org>
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/thermal.h>
+
+#include <dt-bindings/thermal/thermal_exynos.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_TEMP_MASK		0xff
+#define EXYNOS_TMU_REF_VOLTAGE_SHIFT	24
+#define EXYNOS_TMU_REF_VOLTAGE_MASK	0x1f
+#define EXYNOS_TMU_BUF_SLOPE_SEL_MASK	0xf
+#define EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT	8
+#define EXYNOS_TMU_CORE_EN_SHIFT	0
+
+/* Exynos3250 specific registers */
+#define EXYNOS_TMU_TRIMINFO_CON1	0x10
+
+/* Exynos4210 specific registers */
+#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP	0x44
+#define EXYNOS4210_TMU_REG_TRIG_LEVEL0	0x50
+
+/* Exynos5250, Exynos4412, Exynos3250 specific registers */
+#define EXYNOS_TMU_TRIMINFO_CON2	0x14
+#define EXYNOS_THD_TEMP_RISE		0x50
+#define EXYNOS_THD_TEMP_FALL		0x54
+#define EXYNOS_EMUL_CON		0x80
+
+#define EXYNOS_TRIMINFO_RELOAD_ENABLE	1
+#define EXYNOS_TRIMINFO_25_SHIFT	0
+#define EXYNOS_TRIMINFO_85_SHIFT	8
+#define EXYNOS_TMU_TRIP_MODE_SHIFT	13
+#define EXYNOS_TMU_TRIP_MODE_MASK	0x7
+#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT	12
+
+#define EXYNOS_TMU_INTEN_RISE0_SHIFT	0
+#define EXYNOS_TMU_INTEN_FALL0_SHIFT	16
+
+#define EXYNOS_EMUL_TIME	0x57F0
+#define EXYNOS_EMUL_TIME_MASK	0xffff
+#define EXYNOS_EMUL_TIME_SHIFT	16
+#define EXYNOS_EMUL_DATA_SHIFT	8
+#define EXYNOS_EMUL_DATA_MASK	0xFF
+#define EXYNOS_EMUL_ENABLE	0x1
+
+/* Exynos5260 specific */
+#define EXYNOS5260_TMU_REG_INTEN		0xC0
+#define EXYNOS5260_TMU_REG_INTSTAT		0xC4
+#define EXYNOS5260_TMU_REG_INTCLEAR		0xC8
+#define EXYNOS5260_EMUL_CON			0x100
+
+/* Exynos4412 specific */
+#define EXYNOS4412_MUX_ADDR_VALUE          6
+#define EXYNOS4412_MUX_ADDR_SHIFT          20
+
+/* Exynos5433 specific registers */
+#define EXYNOS5433_THD_TEMP_RISE3_0		0x050
+#define EXYNOS5433_THD_TEMP_RISE7_4		0x054
+#define EXYNOS5433_THD_TEMP_FALL3_0		0x060
+#define EXYNOS5433_THD_TEMP_FALL7_4		0x064
+#define EXYNOS5433_TMU_REG_INTEN		0x0c0
+#define EXYNOS5433_TMU_REG_INTPEND		0x0c8
+#define EXYNOS5433_TMU_EMUL_CON			0x110
+#define EXYNOS5433_TMU_PD_DET_EN		0x130
+
+#define EXYNOS5433_TRIMINFO_SENSOR_ID_SHIFT	16
+#define EXYNOS5433_TRIMINFO_CALIB_SEL_SHIFT	23
+#define EXYNOS5433_TRIMINFO_SENSOR_ID_MASK	\
+			(0xf << EXYNOS5433_TRIMINFO_SENSOR_ID_SHIFT)
+#define EXYNOS5433_TRIMINFO_CALIB_SEL_MASK	BIT(23)
+
+#define EXYNOS5433_TRIMINFO_ONE_POINT_TRIMMING	0
+#define EXYNOS5433_TRIMINFO_TWO_POINT_TRIMMING	1
+
+#define EXYNOS5433_PD_DET_EN			1
+
+#define EXYNOS5433_G3D_BASE			0x10070000
+
+/* Exynos7 specific registers */
+#define EXYNOS7_THD_TEMP_RISE7_6		0x50
+#define EXYNOS7_THD_TEMP_FALL7_6		0x60
+#define EXYNOS7_TMU_REG_INTEN			0x110
+#define EXYNOS7_TMU_REG_INTPEND			0x118
+#define EXYNOS7_TMU_REG_EMUL_CON		0x160
+
+#define EXYNOS7_TMU_TEMP_MASK			0x1ff
+#define EXYNOS7_PD_DET_EN_SHIFT			23
+#define EXYNOS7_TMU_INTEN_RISE0_SHIFT		0
+#define EXYNOS7_EMUL_DATA_SHIFT			7
+#define EXYNOS7_EMUL_DATA_MASK			0x1ff
+
+#define EXYNOS_FIRST_POINT_TRIM			25
+#define EXYNOS_SECOND_POINT_TRIM		85
+
+#define EXYNOS_NOISE_CANCEL_MODE		4
+
+#define MCELSIUS	1000
+
+enum soc_type {
+	SOC_ARCH_EXYNOS3250 = 1,
+	SOC_ARCH_EXYNOS4210,
+	SOC_ARCH_EXYNOS4412,
+	SOC_ARCH_EXYNOS5250,
+	SOC_ARCH_EXYNOS5260,
+	SOC_ARCH_EXYNOS5420,
+	SOC_ARCH_EXYNOS5420_TRIMINFO,
+	SOC_ARCH_EXYNOS5433,
+	SOC_ARCH_EXYNOS7,
+};
+
+/**
+ * struct exynos_tmu_data : A structure to hold the private data of the TMU
+ *			    driver
+ * @id: identifier of the one instance of the TMU controller.
+ * @base: base address of the single instance of the TMU controller.
+ * @base_second: base address of the common registers of the TMU controller.
+ * @irq: irq number of the TMU controller.
+ * @soc: id of the SOC type.
+ * @irq_work: pointer to the irq work structure.
+ * @lock: lock to implement synchronization.
+ * @clk: pointer to the clock structure.
+ * @clk_sec: pointer to the clock structure for accessing the base_second.
+ * @sclk: pointer to the clock structure for accessing the tmu special clk.
+ * @cal_type: calibration type for temperature
+ * @efuse_value: SoC defined fuse value
+ * @min_efuse_value: minimum valid trimming data
+ * @max_efuse_value: maximum valid trimming data
+ * @temp_error1: fused value of the first point trim.
+ * @temp_error2: fused value of the second point trim.
+ * @gain: gain of amplifier in the positive-TC generator block
+ *	0 < gain <= 15
+ * @reference_voltage: reference voltage of amplifier
+ *	in the positive-TC generator block
+ *	0 < reference_voltage <= 31
+ * @regulator: pointer to the TMU regulator structure.
+ * @reg_conf: pointer to structure to register with core thermal.
+ * @tzd: pointer to thermal_zone_device structure
+ * @ntrip: number of supported trip points.
+ * @enabled: current status of TMU device
+ * @tmu_set_trip_temp: SoC specific method to set trip (rising threshold)
+ * @tmu_set_trip_hyst: SoC specific to set hysteresis (falling threshold)
+ * @tmu_initialize: SoC specific TMU initialization method
+ * @tmu_control: SoC specific TMU control method
+ * @tmu_read: SoC specific TMU temperature read method
+ * @tmu_set_emulation: SoC specific TMU emulation setting method
+ * @tmu_clear_irqs: SoC specific TMU interrupts clearing method
+ */
+struct exynos_tmu_data {
+	int id;
+	void __iomem *base;
+	void __iomem *base_second;
+	int irq;
+	enum soc_type soc;
+	struct work_struct irq_work;
+	struct mutex lock;
+	struct clk *clk, *clk_sec, *sclk;
+	u32 cal_type;
+	u32 efuse_value;
+	u32 min_efuse_value;
+	u32 max_efuse_value;
+	u16 temp_error1, temp_error2;
+	u8 gain;
+	u8 reference_voltage;
+	struct regulator *regulator;
+	struct thermal_zone_device *tzd;
+	unsigned int ntrip;
+	bool enabled;
+
+	void (*tmu_set_trip_temp)(struct exynos_tmu_data *data, int trip,
+				 u8 temp);
+	void (*tmu_set_trip_hyst)(struct exynos_tmu_data *data, int trip,
+				 u8 temp, u8 hyst);
+	void (*tmu_initialize)(struct platform_device *pdev);
+	void (*tmu_control)(struct platform_device *pdev, bool on);
+	int (*tmu_read)(struct exynos_tmu_data *data);
+	void (*tmu_set_emulation)(struct exynos_tmu_data *data, int temp);
+	void (*tmu_clear_irqs)(struct exynos_tmu_data *data);
+};
+
+/*
+ * 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)
+{
+	if (data->cal_type == TYPE_ONE_POINT_TRIMMING)
+		return temp + data->temp_error1 - EXYNOS_FIRST_POINT_TRIM;
+
+	return (temp - EXYNOS_FIRST_POINT_TRIM) *
+		(data->temp_error2 - data->temp_error1) /
+		(EXYNOS_SECOND_POINT_TRIM - EXYNOS_FIRST_POINT_TRIM) +
+		data->temp_error1;
+}
+
+/*
+ * 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, u16 temp_code)
+{
+	if (data->cal_type == TYPE_ONE_POINT_TRIMMING)
+		return temp_code - data->temp_error1 + EXYNOS_FIRST_POINT_TRIM;
+
+	return (temp_code - data->temp_error1) *
+		(EXYNOS_SECOND_POINT_TRIM - EXYNOS_FIRST_POINT_TRIM) /
+		(data->temp_error2 - data->temp_error1) +
+		EXYNOS_FIRST_POINT_TRIM;
+}
+
+static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info)
+{
+	u16 tmu_temp_mask =
+		(data->soc == SOC_ARCH_EXYNOS7) ? EXYNOS7_TMU_TEMP_MASK
+						: EXYNOS_TMU_TEMP_MASK;
+
+	data->temp_error1 = trim_info & tmu_temp_mask;
+	data->temp_error2 = ((trim_info >> EXYNOS_TRIMINFO_85_SHIFT) &
+				EXYNOS_TMU_TEMP_MASK);
+
+	if (!data->temp_error1 ||
+	    (data->min_efuse_value > data->temp_error1) ||
+	    (data->temp_error1 > data->max_efuse_value))
+		data->temp_error1 = data->efuse_value & EXYNOS_TMU_TEMP_MASK;
+
+	if (!data->temp_error2)
+		data->temp_error2 =
+			(data->efuse_value >> EXYNOS_TRIMINFO_85_SHIFT) &
+			EXYNOS_TMU_TEMP_MASK;
+}
+
+static int exynos_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct thermal_zone_device *tzd = data->tzd;
+	int num_trips = thermal_zone_get_num_trips(tzd);
+	unsigned int status;
+	int ret = 0, temp;
+
+	ret = thermal_zone_get_crit_temp(tzd, &temp);
+	if (ret && data->soc != SOC_ARCH_EXYNOS5433) { /* FIXME */
+		dev_err(&pdev->dev,
+			"No CRITICAL trip point defined in device tree!\n");
+		goto out;
+	}
+
+	if (num_trips > data->ntrip) {
+		dev_info(&pdev->dev,
+			 "More trip points than supported by this TMU.\n");
+		dev_info(&pdev->dev,
+			 "%d trip points should be configured in polling mode.\n",
+			 num_trips - data->ntrip);
+	}
+
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+	if (!IS_ERR(data->clk_sec))
+		clk_enable(data->clk_sec);
+
+	status = readb(data->base + EXYNOS_TMU_REG_STATUS);
+	if (!status) {
+		ret = -EBUSY;
+	} else {
+		int i, ntrips =
+			min_t(int, num_trips, data->ntrip);
+
+		data->tmu_initialize(pdev);
+
+		/* Write temperature code for rising and falling threshold */
+		for (i = 0; i < ntrips; i++) {
+
+			struct thermal_trip trip;
+
+			ret = thermal_zone_get_trip(tzd, i, &trip);
+			if (ret)
+				goto err;
+
+			data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS);
+			data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS,
+						trip.hysteresis / MCELSIUS);
+		}
+
+		data->tmu_clear_irqs(data);
+	}
+err:
+	clk_disable(data->clk);
+	mutex_unlock(&data->lock);
+	if (!IS_ERR(data->clk_sec))
+		clk_disable(data->clk_sec);
+out:
+	return ret;
+}
+
+static u32 get_con_reg(struct exynos_tmu_data *data, u32 con)
+{
+	if (data->soc == SOC_ARCH_EXYNOS4412 ||
+	    data->soc == SOC_ARCH_EXYNOS3250)
+		con |= (EXYNOS4412_MUX_ADDR_VALUE << EXYNOS4412_MUX_ADDR_SHIFT);
+
+	con &= ~(EXYNOS_TMU_REF_VOLTAGE_MASK << EXYNOS_TMU_REF_VOLTAGE_SHIFT);
+	con |= data->reference_voltage << EXYNOS_TMU_REF_VOLTAGE_SHIFT;
+
+	con &= ~(EXYNOS_TMU_BUF_SLOPE_SEL_MASK << EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT);
+	con |= (data->gain << EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT);
+
+	con &= ~(EXYNOS_TMU_TRIP_MODE_MASK << EXYNOS_TMU_TRIP_MODE_SHIFT);
+	con |= (EXYNOS_NOISE_CANCEL_MODE << EXYNOS_TMU_TRIP_MODE_SHIFT);
+
+	return con;
+}
+
+static void exynos_tmu_control(struct platform_device *pdev, bool on)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+	data->tmu_control(pdev, on);
+	data->enabled = on;
+	clk_disable(data->clk);
+	mutex_unlock(&data->lock);
+}
+
+static void exynos4210_tmu_set_trip_temp(struct exynos_tmu_data *data,
+					 int trip_id, u8 temp)
+{
+	struct thermal_trip trip;
+	u8 ref, th_code;
+
+	if (thermal_zone_get_trip(data->tzd, 0, &trip))
+		return;
+
+	ref = trip.temperature / MCELSIUS;
+
+	if (trip_id == 0) {
+		th_code = temp_to_code(data, ref);
+		writeb(th_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
+	}
+
+	temp -= ref;
+	writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip_id * 4);
+}
+
+/* failing thresholds are not supported on Exynos4210 */
+static void exynos4210_tmu_set_trip_hyst(struct exynos_tmu_data *data,
+					 int trip, u8 temp, u8 hyst)
+{
+}
+
+static void exynos4210_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+
+	sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO));
+}
+
+static void exynos4412_tmu_set_trip_temp(struct exynos_tmu_data *data,
+					 int trip, u8 temp)
+{
+	u32 th, con;
+
+	th = readl(data->base + EXYNOS_THD_TEMP_RISE);
+	th &= ~(0xff << 8 * trip);
+	th |= temp_to_code(data, temp) << 8 * trip;
+	writel(th, data->base + EXYNOS_THD_TEMP_RISE);
+
+	if (trip == 3) {
+		con = readl(data->base + EXYNOS_TMU_REG_CONTROL);
+		con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
+		writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+	}
+}
+
+static void exynos4412_tmu_set_trip_hyst(struct exynos_tmu_data *data,
+					 int trip, u8 temp, u8 hyst)
+{
+	u32 th;
+
+	th = readl(data->base + EXYNOS_THD_TEMP_FALL);
+	th &= ~(0xff << 8 * trip);
+	if (hyst)
+		th |= temp_to_code(data, temp - hyst) << 8 * trip;
+	writel(th, data->base + EXYNOS_THD_TEMP_FALL);
+}
+
+static void exynos4412_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	unsigned int trim_info, ctrl;
+
+	if (data->soc == SOC_ARCH_EXYNOS3250 ||
+	    data->soc == SOC_ARCH_EXYNOS4412 ||
+	    data->soc == SOC_ARCH_EXYNOS5250) {
+		if (data->soc == SOC_ARCH_EXYNOS3250) {
+			ctrl = readl(data->base + EXYNOS_TMU_TRIMINFO_CON1);
+			ctrl |= EXYNOS_TRIMINFO_RELOAD_ENABLE;
+			writel(ctrl, data->base + EXYNOS_TMU_TRIMINFO_CON1);
+		}
+		ctrl = readl(data->base + EXYNOS_TMU_TRIMINFO_CON2);
+		ctrl |= EXYNOS_TRIMINFO_RELOAD_ENABLE;
+		writel(ctrl, data->base + EXYNOS_TMU_TRIMINFO_CON2);
+	}
+
+	/* On exynos5420 the triminfo register is in the shared space */
+	if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO)
+		trim_info = readl(data->base_second + EXYNOS_TMU_REG_TRIMINFO);
+	else
+		trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
+
+	sanitize_temp_error(data, trim_info);
+}
+
+static void exynos5433_tmu_set_trip_temp(struct exynos_tmu_data *data,
+					 int trip, u8 temp)
+{
+	unsigned int reg_off, j;
+	u32 th;
+
+	if (trip > 3) {
+		reg_off = EXYNOS5433_THD_TEMP_RISE7_4;
+		j = trip - 4;
+	} else {
+		reg_off = EXYNOS5433_THD_TEMP_RISE3_0;
+		j = trip;
+	}
+
+	th = readl(data->base + reg_off);
+	th &= ~(0xff << j * 8);
+	th |= (temp_to_code(data, temp) << j * 8);
+	writel(th, data->base + reg_off);
+}
+
+static void exynos5433_tmu_set_trip_hyst(struct exynos_tmu_data *data,
+					 int trip, u8 temp, u8 hyst)
+{
+	unsigned int reg_off, j;
+	u32 th;
+
+	if (trip > 3) {
+		reg_off = EXYNOS5433_THD_TEMP_FALL7_4;
+		j = trip - 4;
+	} else {
+		reg_off = EXYNOS5433_THD_TEMP_FALL3_0;
+		j = trip;
+	}
+
+	th = readl(data->base + reg_off);
+	th &= ~(0xff << j * 8);
+	th |= (temp_to_code(data, temp - hyst) << j * 8);
+	writel(th, data->base + reg_off);
+}
+
+static void exynos5433_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	unsigned int trim_info;
+	int sensor_id, cal_type;
+
+	trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
+	sanitize_temp_error(data, trim_info);
+
+	/* Read the temperature sensor id */
+	sensor_id = (trim_info & EXYNOS5433_TRIMINFO_SENSOR_ID_MASK)
+				>> EXYNOS5433_TRIMINFO_SENSOR_ID_SHIFT;
+	dev_info(&pdev->dev, "Temperature sensor ID: 0x%x\n", sensor_id);
+
+	/* Read the calibration mode */
+	writel(trim_info, data->base + EXYNOS_TMU_REG_TRIMINFO);
+	cal_type = (trim_info & EXYNOS5433_TRIMINFO_CALIB_SEL_MASK)
+				>> EXYNOS5433_TRIMINFO_CALIB_SEL_SHIFT;
+
+	switch (cal_type) {
+	case EXYNOS5433_TRIMINFO_TWO_POINT_TRIMMING:
+		data->cal_type = TYPE_TWO_POINT_TRIMMING;
+		break;
+	case EXYNOS5433_TRIMINFO_ONE_POINT_TRIMMING:
+	default:
+		data->cal_type = TYPE_ONE_POINT_TRIMMING;
+		break;
+	}
+
+	dev_info(&pdev->dev, "Calibration type is %d-point calibration\n",
+			cal_type ?  2 : 1);
+}
+
+static void exynos7_tmu_set_trip_temp(struct exynos_tmu_data *data,
+				      int trip, u8 temp)
+{
+	unsigned int reg_off, bit_off;
+	u32 th;
+
+	reg_off = ((7 - trip) / 2) * 4;
+	bit_off = ((8 - trip) % 2);
+
+	th = readl(data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off);
+	th &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off));
+	th |= temp_to_code(data, temp) << (16 * bit_off);
+	writel(th, data->base + EXYNOS7_THD_TEMP_RISE7_6 + reg_off);
+}
+
+static void exynos7_tmu_set_trip_hyst(struct exynos_tmu_data *data,
+				      int trip, u8 temp, u8 hyst)
+{
+	unsigned int reg_off, bit_off;
+	u32 th;
+
+	reg_off = ((7 - trip) / 2) * 4;
+	bit_off = ((8 - trip) % 2);
+
+	th = readl(data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off);
+	th &= ~(EXYNOS7_TMU_TEMP_MASK << (16 * bit_off));
+	th |= temp_to_code(data, temp - hyst) << (16 * bit_off);
+	writel(th, data->base + EXYNOS7_THD_TEMP_FALL7_6 + reg_off);
+}
+
+static void exynos7_tmu_initialize(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	unsigned int trim_info;
+
+	trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
+	sanitize_temp_error(data, trim_info);
+}
+
+static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct thermal_zone_device *tz = data->tzd;
+	struct thermal_trip trip;
+	unsigned int con, interrupt_en = 0, i;
+
+	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
+
+	if (on) {
+		for (i = 0; i < data->ntrip; i++) {
+			if (thermal_zone_get_trip(tz, i, &trip))
+				continue;
+
+			interrupt_en |=
+				(1 << (EXYNOS_TMU_INTEN_RISE0_SHIFT + i * 4));
+		}
+
+		if (data->soc != SOC_ARCH_EXYNOS4210)
+			interrupt_en |=
+				interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
+
+		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+	} else {
+		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+	}
+
+	writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN);
+	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+}
+
+static void exynos5433_tmu_control(struct platform_device *pdev, bool on)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct thermal_zone_device *tz = data->tzd;
+	struct thermal_trip trip;
+	unsigned int con, interrupt_en = 0, pd_det_en, i;
+
+	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
+
+	if (on) {
+		for (i = 0; i < data->ntrip; i++) {
+			if (thermal_zone_get_trip(tz, i, &trip))
+				continue;
+
+			interrupt_en |=
+				(1 << (EXYNOS7_TMU_INTEN_RISE0_SHIFT + i));
+		}
+
+		interrupt_en |=
+			interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
+
+		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+	} else
+		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+
+	pd_det_en = on ? EXYNOS5433_PD_DET_EN : 0;
+
+	writel(pd_det_en, data->base + EXYNOS5433_TMU_PD_DET_EN);
+	writel(interrupt_en, data->base + EXYNOS5433_TMU_REG_INTEN);
+	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+}
+
+static void exynos7_tmu_control(struct platform_device *pdev, bool on)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct thermal_zone_device *tz = data->tzd;
+	struct thermal_trip trip;
+	unsigned int con, interrupt_en = 0, i;
+
+	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
+
+	if (on) {
+		for (i = 0; i < data->ntrip; i++) {
+			if (thermal_zone_get_trip(tz, i, &trip))
+				continue;
+
+			interrupt_en |=
+				(1 << (EXYNOS7_TMU_INTEN_RISE0_SHIFT + i));
+		}
+
+		interrupt_en |=
+			interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
+
+		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		con |= (1 << EXYNOS7_PD_DET_EN_SHIFT);
+	} else {
+		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		con &= ~(1 << EXYNOS7_PD_DET_EN_SHIFT);
+	}
+
+	writel(interrupt_en, data->base + EXYNOS7_TMU_REG_INTEN);
+	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
+}
+
+static int exynos_get_temp(struct thermal_zone_device *tz, int *temp)
+{
+	struct exynos_tmu_data *data = thermal_zone_device_priv(tz);
+	int value, ret = 0;
+
+	if (!data || !data->tmu_read)
+		return -EINVAL;
+	else if (!data->enabled)
+		/*
+		 * Called too early, probably
+		 * from thermal_zone_of_sensor_register().
+		 */
+		return -EAGAIN;
+
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+
+	value = data->tmu_read(data);
+	if (value < 0)
+		ret = value;
+	else
+		*temp = code_to_temp(data, value) * MCELSIUS;
+
+	clk_disable(data->clk);
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+#ifdef CONFIG_THERMAL_EMULATION
+static u32 get_emul_con_reg(struct exynos_tmu_data *data, unsigned int val,
+			    int temp)
+{
+	if (temp) {
+		temp /= MCELSIUS;
+
+		val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT);
+		val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT);
+		if (data->soc == SOC_ARCH_EXYNOS7) {
+			val &= ~(EXYNOS7_EMUL_DATA_MASK <<
+				EXYNOS7_EMUL_DATA_SHIFT);
+			val |= (temp_to_code(data, temp) <<
+				EXYNOS7_EMUL_DATA_SHIFT) |
+				EXYNOS_EMUL_ENABLE;
+		} else {
+			val &= ~(EXYNOS_EMUL_DATA_MASK <<
+				EXYNOS_EMUL_DATA_SHIFT);
+			val |= (temp_to_code(data, temp) <<
+				EXYNOS_EMUL_DATA_SHIFT) |
+				EXYNOS_EMUL_ENABLE;
+		}
+	} else {
+		val &= ~EXYNOS_EMUL_ENABLE;
+	}
+
+	return val;
+}
+
+static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data,
+					 int temp)
+{
+	unsigned int val;
+	u32 emul_con;
+
+	if (data->soc == SOC_ARCH_EXYNOS5260)
+		emul_con = EXYNOS5260_EMUL_CON;
+	else if (data->soc == SOC_ARCH_EXYNOS5433)
+		emul_con = EXYNOS5433_TMU_EMUL_CON;
+	else if (data->soc == SOC_ARCH_EXYNOS7)
+		emul_con = EXYNOS7_TMU_REG_EMUL_CON;
+	else
+		emul_con = EXYNOS_EMUL_CON;
+
+	val = readl(data->base + emul_con);
+	val = get_emul_con_reg(data, val, temp);
+	writel(val, data->base + emul_con);
+}
+
+static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp)
+{
+	struct exynos_tmu_data *data = thermal_zone_device_priv(tz);
+	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);
+	data->tmu_set_emulation(data, temp);
+	clk_disable(data->clk);
+	mutex_unlock(&data->lock);
+	return 0;
+out:
+	return ret;
+}
+#else
+#define exynos4412_tmu_set_emulation NULL
+static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp)
+	{ return -EINVAL; }
+#endif /* CONFIG_THERMAL_EMULATION */
+
+static int exynos4210_tmu_read(struct exynos_tmu_data *data)
+{
+	int ret = readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
+
+	/* "temp_code" should range between 75 and 175 */
+	return (ret < 75 || ret > 175) ? -ENODATA : ret;
+}
+
+static int exynos4412_tmu_read(struct exynos_tmu_data *data)
+{
+	return readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
+}
+
+static int exynos7_tmu_read(struct exynos_tmu_data *data)
+{
+	return readw(data->base + EXYNOS_TMU_REG_CURRENT_TEMP) &
+		EXYNOS7_TMU_TEMP_MASK;
+}
+
+static void exynos_tmu_work(struct work_struct *work)
+{
+	struct exynos_tmu_data *data = container_of(work,
+			struct exynos_tmu_data, irq_work);
+
+	thermal_zone_device_update(data->tzd, THERMAL_EVENT_UNSPECIFIED);
+
+	mutex_lock(&data->lock);
+	clk_enable(data->clk);
+
+	/* TODO: take action based on particular interrupt */
+	data->tmu_clear_irqs(data);
+
+	clk_disable(data->clk);
+	mutex_unlock(&data->lock);
+	enable_irq(data->irq);
+}
+
+static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data)
+{
+	unsigned int val_irq;
+	u32 tmu_intstat, tmu_intclear;
+
+	if (data->soc == SOC_ARCH_EXYNOS5260) {
+		tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT;
+		tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR;
+	} else if (data->soc == SOC_ARCH_EXYNOS7) {
+		tmu_intstat = EXYNOS7_TMU_REG_INTPEND;
+		tmu_intclear = EXYNOS7_TMU_REG_INTPEND;
+	} else if (data->soc == SOC_ARCH_EXYNOS5433) {
+		tmu_intstat = EXYNOS5433_TMU_REG_INTPEND;
+		tmu_intclear = EXYNOS5433_TMU_REG_INTPEND;
+	} else {
+		tmu_intstat = EXYNOS_TMU_REG_INTSTAT;
+		tmu_intclear = EXYNOS_TMU_REG_INTCLEAR;
+	}
+
+	val_irq = readl(data->base + tmu_intstat);
+	/*
+	 * Clear the interrupts.  Please note that the documentation for
+	 * Exynos3250, Exynos4412, Exynos5250 and Exynos5260 incorrectly
+	 * states that INTCLEAR register has a different placing of bits
+	 * responsible for FALL IRQs than INTSTAT register.  Exynos5420
+	 * and Exynos5440 documentation is correct (Exynos4210 doesn't
+	 * support FALL IRQs at all).
+	 */
+	writel(val_irq, data->base + tmu_intclear);
+}
+
+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 const struct of_device_id exynos_tmu_match[] = {
+	{
+		.compatible = "samsung,exynos3250-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS3250,
+	}, {
+		.compatible = "samsung,exynos4210-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS4210,
+	}, {
+		.compatible = "samsung,exynos4412-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS4412,
+	}, {
+		.compatible = "samsung,exynos5250-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS5250,
+	}, {
+		.compatible = "samsung,exynos5260-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS5260,
+	}, {
+		.compatible = "samsung,exynos5420-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS5420,
+	}, {
+		.compatible = "samsung,exynos5420-tmu-ext-triminfo",
+		.data = (const void *)SOC_ARCH_EXYNOS5420_TRIMINFO,
+	}, {
+		.compatible = "samsung,exynos5433-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS5433,
+	}, {
+		.compatible = "samsung,exynos7-tmu",
+		.data = (const void *)SOC_ARCH_EXYNOS7,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, exynos_tmu_match);
+
+static int exynos_map_dt_data(struct platform_device *pdev)
+{
+	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
+	struct resource res;
+
+	if (!data || !pdev->dev.of_node)
+		return -ENODEV;
+
+	data->id = of_alias_get_id(pdev->dev.of_node, "tmuctrl");
+	if (data->id < 0)
+		data->id = 0;
+
+	data->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+	if (data->irq <= 0) {
+		dev_err(&pdev->dev, "failed to get IRQ\n");
+		return -ENODEV;
+	}
+
+	if (of_address_to_resource(pdev->dev.of_node, 0, &res)) {
+		dev_err(&pdev->dev, "failed to get Resource 0\n");
+		return -ENODEV;
+	}
+
+	data->base = devm_ioremap(&pdev->dev, res.start, resource_size(&res));
+	if (!data->base) {
+		dev_err(&pdev->dev, "Failed to ioremap memory\n");
+		return -EADDRNOTAVAIL;
+	}
+
+	data->soc = (uintptr_t)of_device_get_match_data(&pdev->dev);
+
+	switch (data->soc) {
+	case SOC_ARCH_EXYNOS4210:
+		data->tmu_set_trip_temp = exynos4210_tmu_set_trip_temp;
+		data->tmu_set_trip_hyst = exynos4210_tmu_set_trip_hyst;
+		data->tmu_initialize = exynos4210_tmu_initialize;
+		data->tmu_control = exynos4210_tmu_control;
+		data->tmu_read = exynos4210_tmu_read;
+		data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+		data->ntrip = 4;
+		data->gain = 15;
+		data->reference_voltage = 7;
+		data->efuse_value = 55;
+		data->min_efuse_value = 40;
+		data->max_efuse_value = 100;
+		break;
+	case SOC_ARCH_EXYNOS3250:
+	case SOC_ARCH_EXYNOS4412:
+	case SOC_ARCH_EXYNOS5250:
+	case SOC_ARCH_EXYNOS5260:
+	case SOC_ARCH_EXYNOS5420:
+	case SOC_ARCH_EXYNOS5420_TRIMINFO:
+		data->tmu_set_trip_temp = exynos4412_tmu_set_trip_temp;
+		data->tmu_set_trip_hyst = exynos4412_tmu_set_trip_hyst;
+		data->tmu_initialize = exynos4412_tmu_initialize;
+		data->tmu_control = exynos4210_tmu_control;
+		data->tmu_read = exynos4412_tmu_read;
+		data->tmu_set_emulation = exynos4412_tmu_set_emulation;
+		data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+		data->ntrip = 4;
+		data->gain = 8;
+		data->reference_voltage = 16;
+		data->efuse_value = 55;
+		if (data->soc != SOC_ARCH_EXYNOS5420 &&
+		    data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO)
+			data->min_efuse_value = 40;
+		else
+			data->min_efuse_value = 0;
+		data->max_efuse_value = 100;
+		break;
+	case SOC_ARCH_EXYNOS5433:
+		data->tmu_set_trip_temp = exynos5433_tmu_set_trip_temp;
+		data->tmu_set_trip_hyst = exynos5433_tmu_set_trip_hyst;
+		data->tmu_initialize = exynos5433_tmu_initialize;
+		data->tmu_control = exynos5433_tmu_control;
+		data->tmu_read = exynos4412_tmu_read;
+		data->tmu_set_emulation = exynos4412_tmu_set_emulation;
+		data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+		data->ntrip = 8;
+		data->gain = 8;
+		if (res.start == EXYNOS5433_G3D_BASE)
+			data->reference_voltage = 23;
+		else
+			data->reference_voltage = 16;
+		data->efuse_value = 75;
+		data->min_efuse_value = 40;
+		data->max_efuse_value = 150;
+		break;
+	case SOC_ARCH_EXYNOS7:
+		data->tmu_set_trip_temp = exynos7_tmu_set_trip_temp;
+		data->tmu_set_trip_hyst = exynos7_tmu_set_trip_hyst;
+		data->tmu_initialize = exynos7_tmu_initialize;
+		data->tmu_control = exynos7_tmu_control;
+		data->tmu_read = exynos7_tmu_read;
+		data->tmu_set_emulation = exynos4412_tmu_set_emulation;
+		data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+		data->ntrip = 8;
+		data->gain = 9;
+		data->reference_voltage = 17;
+		data->efuse_value = 75;
+		data->min_efuse_value = 15;
+		data->max_efuse_value = 100;
+		break;
+	default:
+		dev_err(&pdev->dev, "Platform not supported\n");
+		return -EINVAL;
+	}
+
+	data->cal_type = TYPE_ONE_POINT_TRIMMING;
+
+	/*
+	 * Check if the TMU shares some registers and then try to map the
+	 * memory of common registers.
+	 */
+	if (data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO)
+		return 0;
+
+	if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
+		dev_err(&pdev->dev, "failed to get Resource 1\n");
+		return -ENODEV;
+	}
+
+	data->base_second = devm_ioremap(&pdev->dev, res.start,
+					resource_size(&res));
+	if (!data->base_second) {
+		dev_err(&pdev->dev, "Failed to ioremap memory\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static const struct thermal_zone_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;
+	int ret;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
+					GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, data);
+	mutex_init(&data->lock);
+
+	/*
+	 * Try enabling the regulator if found
+	 * TODO: Add regulator as an SOC feature, so that regulator enable
+	 * is a compulsory call.
+	 */
+	data->regulator = devm_regulator_get_optional(&pdev->dev, "vtmu");
+	if (!IS_ERR(data->regulator)) {
+		ret = regulator_enable(data->regulator);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to enable vtmu\n");
+			return ret;
+		}
+	} else {
+		if (PTR_ERR(data->regulator) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		dev_info(&pdev->dev, "Regulator node (vtmu) not found\n");
+	}
+
+	ret = exynos_map_dt_data(pdev);
+	if (ret)
+		goto err_sensor;
+
+	INIT_WORK(&data->irq_work, exynos_tmu_work);
+
+	data->clk = devm_clk_get(&pdev->dev, "tmu_apbif");
+	if (IS_ERR(data->clk)) {
+		dev_err(&pdev->dev, "Failed to get clock\n");
+		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");
+			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");
+			goto err_sensor;
+		}
+	}
+
+	ret = clk_prepare(data->clk);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to get clock\n");
+		goto err_clk_sec;
+	}
+
+	switch (data->soc) {
+	case SOC_ARCH_EXYNOS5433:
+	case SOC_ARCH_EXYNOS7:
+		data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk");
+		if (IS_ERR(data->sclk)) {
+			dev_err(&pdev->dev, "Failed to get sclk\n");
+			ret = PTR_ERR(data->sclk);
+			goto err_clk;
+		} else {
+			ret = clk_prepare_enable(data->sclk);
+			if (ret) {
+				dev_err(&pdev->dev, "Failed to enable sclk\n");
+				goto err_clk;
+			}
+		}
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * data->tzd must be registered before calling exynos_tmu_initialize(),
+	 * requesting irq and calling exynos_tmu_control().
+	 */
+	data->tzd = devm_thermal_of_zone_register(&pdev->dev, 0, data,
+						  &exynos_sensor_ops);
+	if (IS_ERR(data->tzd)) {
+		ret = PTR_ERR(data->tzd);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Failed to register sensor: %d\n",
+				ret);
+		goto err_sclk;
+	}
+
+	ret = exynos_tmu_initialize(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to initialize TMU\n");
+		goto err_sclk;
+	}
+
+	ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
+		IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
+		goto err_sclk;
+	}
+
+	exynos_tmu_control(pdev, true);
+	return 0;
+
+err_sclk:
+	clk_disable_unprepare(data->sclk);
+err_clk:
+	clk_unprepare(data->clk);
+err_clk_sec:
+	if (!IS_ERR(data->clk_sec))
+		clk_unprepare(data->clk_sec);
+err_sensor:
+	if (!IS_ERR(data->regulator))
+		regulator_disable(data->regulator);
+
+	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);
+
+	clk_disable_unprepare(data->sclk);
+	clk_unprepare(data->clk);
+	if (!IS_ERR(data->clk_sec))
+		clk_unprepare(data->clk_sec);
+
+	if (!IS_ERR(data->regulator))
+		regulator_disable(data->regulator);
+
+	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",
+		.pm     = EXYNOS_TMU_PM,
+		.of_match_table = exynos_tmu_match,
+	},
+	.probe = exynos_tmu_probe,
+	.remove	= exynos_tmu_remove,
+};
+
+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");