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/accel/da311.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/iio/accel/da311.c b/drivers/iio/accel/da311.c
index 04e13487e706..b65f47dc4945 100644
--- a/drivers/iio/accel/da311.c
+++ b/drivers/iio/accel/da311.c
@@ -256,17 +256,15 @@ static int da311_probe(struct i2c_client *client,
return devm_iio_device_register(&client->dev, indio_dev);
}
-#ifdef CONFIG_PM_SLEEP
-static int da311_suspend(struct device *dev)
+static __maybe_unused int da311_suspend(struct device *dev)
{
return da311_enable(to_i2c_client(dev), false);
}
-static int da311_resume(struct device *dev)
+static __maybe_unused int da311_resume(struct device *dev)
{
return da311_enable(to_i2c_client(dev), true);
}
-#endif
static SIMPLE_DEV_PM_OPS(da311_pm_ops, da311_suspend, da311_resume);
@@ -279,7 +277,7 @@ MODULE_DEVICE_TABLE(i2c, da311_i2c_id);
static struct i2c_driver da311_driver = {
.driver = {
.name = "da311",
- .pm = &da311_pm_ops,
+ .pm = pm_ptr(&da311_pm_ops),
},
.probe = da311_probe,
.id_table = da311_i2c_id,
--
2.34.0
