Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git…

…/evalenti/linux-soc-thermal

Pull thermal driver fixes from Eduardo Valentin:
 "This week we have few fixes:
   - fix in IMX thermal driver to do the correct loading sequence with
     CPUfreq
   - fix in Exynos related to TMU_CONTROL offset in Exynos5260
   - fix the unit conversion in int3403"

[ Still pulling from Eduardo as Rui Zhang is on a business trip and has
  troubles with his machine ]

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  imx: thermal: imx_get_temp might be called before sensor clock is prepared
  thermal: exynos: use correct offset for TMU_CONTROL register on Exynos5260
  thermal: imx: correct driver load sequence for cpu cooling
  Thermal/int3403: Fix thermal hysteresis unit conversion

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 */

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;
 }

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,

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