pwm: berlin: 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-berlin.c b/drivers/pwm/pwm-berlin.c
index ba2d799917695fc4d767160049dfe45a4dca83d3..442913232dc01efc756406a2e29d02d9aae16ec9 100644 (file)
--- a/drivers/pwm/pwm-berlin.c
+++ b/drivers/pwm/pwm-berlin.c
@@ -226,7 +226,6 @@ static int berlin_pwm_probe(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int berlin_pwm_suspend(struct device *dev)
 {
        struct berlin_pwm_chip *bpc = dev_get_drvdata(dev);
@@ -267,17 +266,16 @@ static int berlin_pwm_resume(struct device *dev)
 
        return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(berlin_pwm_pm_ops, berlin_pwm_suspend,
-                        berlin_pwm_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(berlin_pwm_pm_ops, berlin_pwm_suspend,
+                               berlin_pwm_resume);
 
 static struct platform_driver berlin_pwm_driver = {
        .probe = berlin_pwm_probe,
        .driver = {
                .name = "berlin-pwm",
                .of_match_table = berlin_pwm_match,
-               .pm = &berlin_pwm_pm_ops,
+               .pm = pm_ptr(&berlin_pwm_pm_ops),
        },
 };
 module_platform_driver(berlin_pwm_driver);