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>
---
drivers/iio/adc/twl6030-gpadc.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index afdb59e0b526..cf8e4ed749d1 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -944,8 +944,7 @@ static int twl6030_gpadc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int twl6030_gpadc_suspend(struct device *pdev)
+static __maybe_unused int twl6030_gpadc_suspend(struct device *pdev)
{
int ret;
@@ -957,7 +956,7 @@ static int twl6030_gpadc_suspend(struct device *pdev)
return 0;
};
-static int twl6030_gpadc_resume(struct device *pdev)
+static __maybe_unused int twl6030_gpadc_resume(struct device *pdev)
{
int ret;
@@ -968,7 +967,6 @@ static int twl6030_gpadc_resume(struct device *pdev)
return 0;
};
-#endif
static SIMPLE_DEV_PM_OPS(twl6030_gpadc_pm_ops, twl6030_gpadc_suspend,
twl6030_gpadc_resume);
@@ -978,7 +976,7 @@ static struct platform_driver twl6030_gpadc_driver = {
.remove = twl6030_gpadc_remove,
.driver = {
.name = DRIVER_NAME,
- .pm = &twl6030_gpadc_pm_ops,
+ .pm = pm_ptr(&twl6030_gpadc_pm_ops),
.of_match_table = of_twl6030_match_tbl,
},
};
--
2.34.0
