iio:light:tsl2563: 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>
Cc: Vaishnav M A <vaishnav@beagleboard.org>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220130193147.279148-28-jic23@kernel.org

diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index 5bf2bfb..0a278ee 100644 (file)
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -814,7 +814,6 @@ static int tsl2563_remove(struct i2c_client *client)
        return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int tsl2563_suspend(struct device *dev)
 {
        struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
@@ -857,11 +856,8 @@ out:
        return ret;
 }
 
-static SIMPLE_DEV_PM_OPS(tsl2563_pm_ops, tsl2563_suspend, tsl2563_resume);
-#define TSL2563_PM_OPS (&tsl2563_pm_ops)
-#else
-#define TSL2563_PM_OPS NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(tsl2563_pm_ops, tsl2563_suspend,
+                               tsl2563_resume);
 
 static const struct i2c_device_id tsl2563_id[] = {
        { "tsl2560", 0 },
@@ -885,7 +881,7 @@ static struct i2c_driver tsl2563_i2c_driver = {
        .driver = {
                .name    = "tsl2563",
                .of_match_table = tsl2563_of_match,
-               .pm     = TSL2563_PM_OPS,
+               .pm     = pm_sleep_ptr(&tsl2563_pm_ops),
        },
        .probe          = tsl2563_probe,
        .remove         = tsl2563_remove,