iio:common:ssp: 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.  Also switch to SIMPLE_DEV_PM_OPS
rather than open coding the structure.

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/20220130193147.279148-17-jic23@kernel.org

diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c
index a60c114..a3783ea 100644 (file)
--- a/drivers/iio/common/ssp_sensors/ssp_dev.c
+++ b/drivers/iio/common/ssp_sensors/ssp_dev.c
@@ -600,7 +600,6 @@ static int ssp_remove(struct spi_device *spi)
        return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int ssp_suspend(struct device *dev)
 {
        int ret;
@@ -649,17 +648,14 @@ static int ssp_resume(struct device *dev)
 
        return 0;
 }
-#endif /* CONFIG_PM_SLEEP */
 
-static const struct dev_pm_ops ssp_pm_ops = {
-       SET_SYSTEM_SLEEP_PM_OPS(ssp_suspend, ssp_resume)
-};
+static DEFINE_SIMPLE_DEV_PM_OPS(ssp_pm_ops, ssp_suspend, ssp_resume);
 
 static struct spi_driver ssp_driver = {
        .probe = ssp_probe,
        .remove = ssp_remove,
        .driver = {
-               .pm = &ssp_pm_ops,
+               .pm = pm_sleep_ptr(&ssp_pm_ops),
                .of_match_table = ssp_of_match,
                .name = "sensorhub"
        },