iio:accel:bma180: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr() etc

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.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220130193147.279148-40-jic23@kernel.org

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index d8a454c266d5f59bea189687fa59f55a984902cb..4f73bc827eecb18d4f1348e73486633b7a8e9a48 100644 (file)
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -1065,7 +1065,6 @@ static int bma180_remove(struct i2c_client *client)
        return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int bma180_suspend(struct device *dev)
 {
        struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
@@ -1092,11 +1091,7 @@ static int bma180_resume(struct device *dev)
        return ret;
 }
 
-static SIMPLE_DEV_PM_OPS(bma180_pm_ops, bma180_suspend, bma180_resume);
-#define BMA180_PM_OPS (&bma180_pm_ops)
-#else
-#define BMA180_PM_OPS NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(bma180_pm_ops, bma180_suspend, bma180_resume);
 
 static const struct i2c_device_id bma180_ids[] = {
        { "bma023", BMA023 },
@@ -1137,7 +1132,7 @@ MODULE_DEVICE_TABLE(of, bma180_of_match);
 static struct i2c_driver bma180_driver = {
        .driver = {
                .name   = "bma180",
-               .pm     = BMA180_PM_OPS,
+               .pm     = pm_sleep_ptr(&bma180_pm_ops),
                .of_match_table = bma180_of_match,
        },
        .probe          = bma180_probe,