Merge branches 'thermal-soc-misc' and 'thermal-soc-qoriq' into thermal-soc

Documentation/devicetree/bindings/thermal/qoriq-thermal.txt

@@ -23,6 +23,7 @@ Required properties:
 Optional property:
 - little-endian : If present, the TMU registers are little endian. If absent,
 	the default is big endian.
+- clocks : the clock for clocking the TMU silicon.
 
 Example:
 

drivers/thermal/qoriq_thermal.c

@@ -2,6 +2,7 @@
 //
 // Copyright 2016 Freescale Semiconductor, Inc.
 
+#include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/err.h>
@@ -72,6 +73,7 @@ struct qoriq_sensor {
 
 struct qoriq_tmu_data {
 	struct qoriq_tmu_regs __iomem *regs;
+	struct clk *clk;
 	bool little_endian;
 	struct qoriq_sensor	*sensor[SITES_MAX];
 };
@@ -202,32 +204,39 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
 
 	data->little_endian = of_property_read_bool(np, "little-endian");
 
-	data->regs = of_iomap(np, 0);
-	if (!data->regs) {
+	data->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(data->regs)) {
 		dev_err(&pdev->dev, "Failed to get memory region\n");
-		ret = -ENODEV;
-		goto err_iomap;
+		return PTR_ERR(data->regs);
+	}
+
+	data->clk = devm_clk_get_optional(&pdev->dev, NULL);
+	if (IS_ERR(data->clk))
+		return PTR_ERR(data->clk);
+
+	ret = clk_prepare_enable(data->clk);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to enable clock\n");
+		return ret;
 	}
 
 	qoriq_tmu_init_device(data);	/* TMU initialization */
 
 	ret = qoriq_tmu_calibration(pdev);	/* TMU calibration */
 	if (ret < 0)
-		goto err_tmu;
+		goto err;
 
 	ret = qoriq_tmu_register_tmu_zone(pdev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to register sensors\n");
 		ret = -ENODEV;
-		goto err_iomap;
+		goto err;
 	}
 
 	return 0;
 
-err_tmu:
-	iounmap(data->regs);
-
-err_iomap:
+err:
+	clk_disable_unprepare(data->clk);
 	platform_set_drvdata(pdev, NULL);
 
 	return ret;
@@ -240,14 +249,14 @@ static int qoriq_tmu_remove(struct platform_device *pdev)
 	/* Disable monitoring */
 	tmu_write(data, TMR_DISABLE, &data->regs->tmr);
 
-	iounmap(data->regs);
+	clk_disable_unprepare(data->clk);
+
 	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
-static int qoriq_tmu_suspend(struct device *dev)
+static int __maybe_unused qoriq_tmu_suspend(struct device *dev)
 {
 	u32 tmr;
 	struct qoriq_tmu_data *data = dev_get_drvdata(dev);
@@ -257,14 +266,21 @@ static int qoriq_tmu_suspend(struct device *dev)
 	tmr &= ~TMR_ME;
 	tmu_write(data, tmr, &data->regs->tmr);
 
+	clk_disable_unprepare(data->clk);
+
 	return 0;
 }
 
-static int qoriq_tmu_resume(struct device *dev)
+static int __maybe_unused qoriq_tmu_resume(struct device *dev)
 {
 	u32 tmr;
+	int ret;
 	struct qoriq_tmu_data *data = dev_get_drvdata(dev);
 
+	ret = clk_prepare_enable(data->clk);
+	if (ret)
+		return ret;
+
 	/* Enable monitoring */
 	tmr = tmu_read(data, &data->regs->tmr);
 	tmr |= TMR_ME;
@@ -272,7 +288,6 @@ static int qoriq_tmu_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
 static SIMPLE_DEV_PM_OPS(qoriq_tmu_pm_ops,
 			 qoriq_tmu_suspend, qoriq_tmu_resume);