4 files changed, 36 insertions, 19 deletions

diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 461bf3d033a0..5a1f1070b702 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -459,6 +459,10 @@ static int imx_thermal_probe(struct platform_device *pdev)
         int measure_freq;
         int ret;
 
+        if (!cpufreq_get_current_driver()) {
+                dev_dbg(&pdev->dev, "no cpufreq driver!");
+                return -EPROBE_DEFER;
+        }
         data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
         if (!data)
                 return -ENOMEM;
@@ -521,6 +525,30 @@ static int imx_thermal_probe(struct platform_device *pdev)
                 return ret;
         }
 
+        data->thermal_clk = devm_clk_get(&pdev->dev, NULL);
+        if (IS_ERR(data->thermal_clk)) {
+                ret = PTR_ERR(data->thermal_clk);
+                if (ret != -EPROBE_DEFER)
+                        dev_err(&pdev->dev,
+                                "failed to get thermal clk: %d\n", ret);
+                cpufreq_cooling_unregister(data->cdev);
+                return ret;
+        }
+
+        /*
+         * Thermal sensor needs clk on to get correct value, normally
+         * we should enable its clk before taking measurement and disable
+         * clk after measurement is done, but if alarm function is enabled,
+         * hardware will auto measure the temperature periodically, so we
+         * need to keep the clk always on for alarm function.
+         */
+        ret = clk_prepare_enable(data->thermal_clk);
+        if (ret) {
+                dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret);
+                cpufreq_cooling_unregister(data->cdev);
+                return ret;
+        }
+
         data->tz = thermal_zone_device_register("imx_thermal_zone",
                                                 IMX_TRIP_NUM,
                                                 BIT(IMX_TRIP_PASSIVE), data,
@@ -531,26 +559,11 @@ static int imx_thermal_probe(struct platform_device *pdev)
                 ret = PTR_ERR(data->tz);
                 dev_err(&pdev->dev,
                         "failed to register thermal zone device %d\n", ret);
+                clk_disable_unprepare(data->thermal_clk);
                 cpufreq_cooling_unregister(data->cdev);
                 return ret;
         }
 
-        data->thermal_clk = devm_clk_get(&pdev->dev, NULL);
-        if (IS_ERR(data->thermal_clk)) {
-                dev_warn(&pdev->dev, "failed to get thermal clk!\n");
-        } else {
-                /*
-                 * Thermal sensor needs clk on to get correct value, normally
-                 * we should enable its clk before taking measurement and disable
-                 * clk after measurement is done, but if alarm function is enabled,
-                 * hardware will auto measure the temperature periodically, so we
-                 * need to keep the clk always on for alarm function.
-                 */
-                ret = clk_prepare_enable(data->thermal_clk);
-                if (ret)
-                        dev_warn(&pdev->dev, "failed to enable thermal clk: %d\n", ret);
-        }
-
         /* Enable measurements at ~ 10 Hz */
         regmap_write(map, TEMPSENSE1 + REG_CLR, TEMPSENSE1_MEASURE_FREQ);
         measure_freq = DIV_ROUND_UP(32768, 10); /* 10 Hz */
diff --git a/drivers/thermal/int340x_thermal/int3403_thermal.c b/drivers/thermal/int340x_thermal/int3403_thermal.c
index d20dba986f0f..6e9fb62eb817 100644
--- a/drivers/thermal/int340x_thermal/int3403_thermal.c
+++ b/drivers/thermal/int340x_thermal/int3403_thermal.c
@@ -92,7 +92,13 @@ static int sys_get_trip_hyst(struct thermal_zone_device *tzone,
         if (ACPI_FAILURE(status))
                 return -EIO;
 
-        *temp = DECI_KELVIN_TO_MILLI_CELSIUS(hyst, KELVIN_OFFSET);
+        /*
+         * Thermal hysteresis represents a temperature difference.
+         * Kelvin and Celsius have same degree size. So the
+         * conversion here between tenths of degree Kelvin unit
+         * and Milli-Celsius unit is just to multiply 100.
+         */
+        *temp = hyst * 100;
 
         return 0;
 }
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index 2683d2897e90..1724f6cdaef8 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -264,7 +264,6 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
 static const struct exynos_tmu_registers exynos5260_tmu_registers = {
         .triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
         .tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
-        .tmu_ctrl = EXYNOS_TMU_REG_CONTROL1,
         .therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
         .therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
         .therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
index 65e2ea6a9579..63de598c9c2c 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.h
+++ b/drivers/thermal/samsung/exynos_tmu_data.h
@@ -75,7 +75,6 @@
 #define EXYNOS_MAX_TRIGGER_PER_REG      4
 
 /* Exynos5260 specific */
-#define EXYNOS_TMU_REG_CONTROL1                 0x24
 #define EXYNOS5260_TMU_REG_INTEN                0xC0
 #define EXYNOS5260_TMU_REG_INTSTAT              0xC4
 #define EXYNOS5260_TMU_REG_INTCLEAR             0xC8