iio: dac: mcp4725: 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/20220621202719.13644-16-jic23@kernel.org

diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 7fcb86288823d9971913a02f9cc6d806099a3760..bb4b85a7b95b6f1fe38b6f694c61bf85bc876129 100644 (file)
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -42,7 +42,7 @@ struct mcp4725_data {
        struct regulator *vref_reg;
 };
 
-static int __maybe_unused mcp4725_suspend(struct device *dev)
+static int mcp4725_suspend(struct device *dev)
 {
        struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
                to_i2c_client(dev)));
@@ -55,7 +55,7 @@ static int __maybe_unused mcp4725_suspend(struct device *dev)
        return i2c_master_send(data->client, outbuf, 2);
 }
 
-static int __maybe_unused mcp4725_resume(struct device *dev)
+static int mcp4725_resume(struct device *dev)
 {
        struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
                to_i2c_client(dev)));
@@ -68,7 +68,8 @@ static int __maybe_unused mcp4725_resume(struct device *dev)
 
        return i2c_master_send(data->client, outbuf, 2);
 }
-static SIMPLE_DEV_PM_OPS(mcp4725_pm_ops, mcp4725_suspend, mcp4725_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(mcp4725_pm_ops, mcp4725_suspend,
+                               mcp4725_resume);
 
 static ssize_t mcp4725_store_eeprom(struct device *dev,
        struct device_attribute *attr, const char *buf, size_t len)
@@ -523,7 +524,7 @@ static struct i2c_driver mcp4725_driver = {
        .driver = {
                .name   = MCP4725_DRV_NAME,
                .of_match_table = mcp4725_of_match,
-               .pm     = &mcp4725_pm_ops,
+               .pm     = pm_sleep_ptr(&mcp4725_pm_ops),
        },
        .probe          = mcp4725_probe,
        .remove         = mcp4725_remove,