iio: dac: max5821: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Philippe Reynes <tremyfr@yahoo.fr>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-15-jic23@kernel.org

diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
index 540f9ea..e001b59 100644 (file)
--- a/drivers/iio/dac/max5821.c
+++ b/drivers/iio/dac/max5821.c
@@ -267,7 +267,7 @@ static int max5821_write_raw(struct iio_dev *indio_dev,
        }
 }
 
-static int __maybe_unused max5821_suspend(struct device *dev)
+static int max5821_suspend(struct device *dev)
 {
        u8 outbuf[2] = { MAX5821_EXTENDED_COMMAND_MODE,
                         MAX5821_EXTENDED_DAC_A |
@@ -277,7 +277,7 @@ static int __maybe_unused max5821_suspend(struct device *dev)
        return i2c_master_send(to_i2c_client(dev), outbuf, 2);
 }
 
-static int __maybe_unused max5821_resume(struct device *dev)
+static int max5821_resume(struct device *dev)
 {
        u8 outbuf[2] = { MAX5821_EXTENDED_COMMAND_MODE,
                         MAX5821_EXTENDED_DAC_A |
@@ -287,7 +287,8 @@ static int __maybe_unused max5821_resume(struct device *dev)
        return i2c_master_send(to_i2c_client(dev), outbuf, 2);
 }
 
-static SIMPLE_DEV_PM_OPS(max5821_pm_ops, max5821_suspend, max5821_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(max5821_pm_ops, max5821_suspend,
+                               max5821_resume);
 
 static const struct iio_info max5821_info = {
        .read_raw = max5821_read_raw,
@@ -374,7 +375,7 @@ static struct i2c_driver max5821_driver = {
        .driver = {
                .name   = "max5821",
                .of_match_table = max5821_of_match,
-               .pm     = &max5821_pm_ops,
+               .pm     = pm_sleep_ptr(&max5821_pm_ops),
        },
        .probe          = max5821_probe,
        .id_table       = max5821_id,