spi/atmel: improve the system suspend/resume functions implementation

To make it cleaner, the system suspend/resume directly call
the runtime suspend/resume functions
and remove the wapper of CONFIG_PM_RUNTIME, CONFIG_PM_SLEEP.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-atmel.c

@@ -1451,11 +1451,30 @@ static int atmel_spi_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-#ifdef CONFIG_PM_SLEEP
+static int atmel_spi_runtime_suspend(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct atmel_spi *as = spi_master_get_devdata(master);
+
+	clk_disable_unprepare(as->clk);
+	pinctrl_pm_select_sleep_state(dev);
+
+	return 0;
+}
+
+static int atmel_spi_runtime_resume(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct atmel_spi *as = spi_master_get_devdata(master);
+
+	pinctrl_pm_select_default_state(dev);
+
+	return clk_prepare_enable(as->clk);
+}
+
 static int atmel_spi_suspend(struct device *dev)
 {
-	struct spi_master	*master = dev_get_drvdata(dev);
-	struct atmel_spi	*as = spi_master_get_devdata(master);
+	struct spi_master *master = dev_get_drvdata(dev);
 	int ret;
 
 	/* Stop the queue running */
@@ -1465,23 +1484,19 @@ static int atmel_spi_suspend(struct device *dev)
 		return ret;
 	}
 
-	if (!pm_runtime_suspended(dev)) {
-		clk_disable_unprepare(as->clk);
-		pinctrl_pm_select_sleep_state(dev);
-	}
+	if (!pm_runtime_suspended(dev))
+		atmel_spi_runtime_suspend(dev);
 
 	return 0;
 }
 
 static int atmel_spi_resume(struct device *dev)
 {
-	struct spi_master	*master = dev_get_drvdata(dev);
-	struct atmel_spi	*as = spi_master_get_devdata(master);
+	struct spi_master *master = dev_get_drvdata(dev);
 	int ret;
 
 	if (!pm_runtime_suspended(dev)) {
-		pinctrl_pm_select_default_state(dev);
-		ret = clk_prepare_enable(as->clk);
+		ret = atmel_spi_runtime_resume(dev);
 		if (ret)
 			return ret;
 	}
@@ -1493,30 +1508,6 @@ static int atmel_spi_resume(struct device *dev)
 
 	return ret;
 }
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-static int atmel_spi_runtime_suspend(struct device *dev)
-{
-	struct spi_master *master = dev_get_drvdata(dev);
-	struct atmel_spi *as = spi_master_get_devdata(master);
-
-	clk_disable_unprepare(as->clk);
-	pinctrl_pm_select_sleep_state(dev);
-
-	return 0;
-}
-
-static int atmel_spi_runtime_resume(struct device *dev)
-{
-	struct spi_master *master = dev_get_drvdata(dev);
-	struct atmel_spi *as = spi_master_get_devdata(master);
-
-	pinctrl_pm_select_default_state(dev);
-
-	return clk_prepare_enable(as->clk);
-}
-#endif
 
 static const struct dev_pm_ops atmel_spi_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(atmel_spi_suspend, atmel_spi_resume)