From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Letting the compiler remove these functions when the kernel is built
without CONFIG_PM_SLEEP support is simpler and less error prone than the
use of #ifdef based config guards.
Removing instances of this approach from IIO also stops them being
copied into new drivers.
The pm_ptr() macro only removes the reference if CONFIG_PM is not
set. It is possible for CONFIG_PM=y without CONFIG_SLEEP, so this
will not always remove the pm_ops structure.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
drivers/iio/adc/exynos_adc.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 3b3868aa2533..01a801d325a9 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -968,8 +968,7 @@ static int exynos_adc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int exynos_adc_suspend(struct device *dev)
+static __maybe_unused int exynos_adc_suspend(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct exynos_adc *info = iio_priv(indio_dev);
@@ -982,7 +981,7 @@ static int exynos_adc_suspend(struct device *dev)
return 0;
}
-static int exynos_adc_resume(struct device *dev)
+static __maybe_unused int exynos_adc_resume(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct exynos_adc *info = iio_priv(indio_dev);
@@ -1001,7 +1000,6 @@ static int exynos_adc_resume(struct device *dev)
return 0;
}
-#endif
static SIMPLE_DEV_PM_OPS(exynos_adc_pm_ops,
exynos_adc_suspend,
@@ -1013,7 +1011,7 @@ static struct platform_driver exynos_adc_driver = {
.driver = {
.name = "exynos-adc",
.of_match_table = exynos_adc_match,
- .pm = &exynos_adc_pm_ops,
+ .pm = pm_ptr(&exynos_adc_pm_ops),
},
};
--
2.34.0
