pwm: tiehrpwm: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions

This macro has the advantage over SIMPLE_DEV_PM_OPS that we don't have to
care about when the functions are actually used, so the corresponding
#ifdef can be dropped.

Also make use of pm_ptr() to discard all PM related stuff if CONFIG_PM
isn't enabled.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 66ac2655845f783a20bf5efd7f974f061ee5ee25..af231fa74fa9011e50f8d425e9e1cc1b1e433c13 100644 (file)
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -521,7 +521,6 @@ static void ehrpwm_pwm_remove(struct platform_device *pdev)
        pm_runtime_disable(&pdev->dev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static void ehrpwm_pwm_save_context(struct ehrpwm_pwm_chip *pc)
 {
        pm_runtime_get_sync(pc->chip.dev);
@@ -589,16 +588,15 @@ static int ehrpwm_pwm_resume(struct device *dev)
 
        return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(ehrpwm_pwm_pm_ops, ehrpwm_pwm_suspend,
-                        ehrpwm_pwm_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(ehrpwm_pwm_pm_ops, ehrpwm_pwm_suspend,
+                               ehrpwm_pwm_resume);
 
 static struct platform_driver ehrpwm_pwm_driver = {
        .driver = {
                .name = "ehrpwm",
                .of_match_table = ehrpwm_of_match,
-               .pm = &ehrpwm_pwm_pm_ops,
+               .pm = pm_ptr(&ehrpwm_pwm_pm_ops),
        },
        .probe = ehrpwm_pwm_probe,
        .remove_new = ehrpwm_pwm_remove,