hwrng: atmel - use __maybe_unused and pm_ptr() for pm ops

Use __maybe_unused and pm_ptr() for pm ops.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
index ef49dbe..0fff748 100644 (file)
--- a/drivers/char/hw_random/atmel-rng.c
+++ b/drivers/char/hw_random/atmel-rng.c
@@ -155,8 +155,7 @@ static int atmel_trng_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM
-static int atmel_trng_suspend(struct device *dev)
+static int __maybe_unused atmel_trng_suspend(struct device *dev)
 {
        struct atmel_trng *trng = dev_get_drvdata(dev);
 
@@ -165,18 +164,17 @@ static int atmel_trng_suspend(struct device *dev)
        return 0;
 }
 
-static int atmel_trng_resume(struct device *dev)
+static int __maybe_unused atmel_trng_resume(struct device *dev)
 {
        struct atmel_trng *trng = dev_get_drvdata(dev);
 
        return atmel_trng_init(trng);
 }
 
-static const struct dev_pm_ops atmel_trng_pm_ops = {
+static const struct dev_pm_ops __maybe_unused atmel_trng_pm_ops = {
        .suspend        = atmel_trng_suspend,
        .resume         = atmel_trng_resume,
 };
-#endif /* CONFIG_PM */
 
 static const struct atmel_trng_data at91sam9g45_config = {
        .has_half_rate = false,
@@ -204,9 +202,7 @@ static struct platform_driver atmel_trng_driver = {
        .remove         = atmel_trng_remove,
        .driver         = {
                .name   = "atmel-trng",
-#ifdef CONFIG_PM
-               .pm     = &atmel_trng_pm_ops,
-#endif /* CONFIG_PM */
+               .pm     = pm_ptr(&atmel_trng_pm_ops),
                .of_match_table = atmel_trng_dt_ids,
        },
 };