thermal/drivers/samsung: Switch to new of thermal API

The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.

Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220804224349.1926752-32-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

drivers/thermal/samsung/exynos_tmu.c

@@ -650,9 +650,9 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on)
 	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
 }
 
-static int exynos_get_temp(void *p, int *temp)
+static int exynos_get_temp(struct thermal_zone_device *tz, int *temp)
 {
-	struct exynos_tmu_data *data = p;
+	struct exynos_tmu_data *data = tz->devdata;
 	int value, ret = 0;
 
 	if (!data || !data->tmu_read)
@@ -728,9 +728,9 @@ static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data,
 	writel(val, data->base + emul_con);
 }
 
-static int exynos_tmu_set_emulation(void *drv_data, int temp)
+static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp)
 {
-	struct exynos_tmu_data *data = drv_data;
+	struct exynos_tmu_data *data = tz->devdata;
 	int ret = -EINVAL;
 
 	if (data->soc == SOC_ARCH_EXYNOS4210)
@@ -750,7 +750,7 @@ static int exynos_tmu_set_emulation(void *drv_data, int temp)
 }
 #else
 #define exynos4412_tmu_set_emulation NULL
-static int exynos_tmu_set_emulation(void *drv_data, int temp)
+static int exynos_tmu_set_emulation(struct thermal_zone_device *tz, int temp)
 	{ return -EINVAL; }
 #endif /* CONFIG_THERMAL_EMULATION */
 
@@ -997,7 +997,7 @@ static int exynos_map_dt_data(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct thermal_zone_of_device_ops exynos_sensor_ops = {
+static const struct thermal_zone_device_ops exynos_sensor_ops = {
 	.get_temp = exynos_get_temp,
 	.set_emul_temp = exynos_tmu_set_emulation,
 };
@@ -1091,8 +1091,8 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 	 * data->tzd must be registered before calling exynos_tmu_initialize(),
 	 * requesting irq and calling exynos_tmu_control().
 	 */
-	data->tzd = thermal_zone_of_sensor_register(&pdev->dev, 0, data,
-						    &exynos_sensor_ops);
+	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)
@@ -1104,21 +1104,19 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 	ret = exynos_tmu_initialize(pdev);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to initialize TMU\n");
-		goto err_thermal;
+		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_thermal;
+		goto err_sclk;
 	}
 
 	exynos_tmu_control(pdev, true);
 	return 0;
 
-err_thermal:
-	thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd);
 err_sclk:
 	clk_disable_unprepare(data->sclk);
 err_clk:
@@ -1136,9 +1134,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 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;
 
-	thermal_zone_of_sensor_unregister(&pdev->dev, tzd);
 	exynos_tmu_control(pdev, false);
 
 	clk_disable_unprepare(data->sclk);