iio:adc:ab8500: Switch from CONFIG_PM guards to pm_ptr() etc

Letting the compiler remove these functions when the kernel is built
without CONFIG_PM support is simpler and less error prone than the
use of #ifdef based config guards.

This case uses the new DEFINE_RUNTIME_DEV_PM_OPS() to reduce
boilerplate.

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: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220130193147.279148-44-jic23@kernel.org

diff --git a/drivers/iio/adc/ab8500-gpadc.c b/drivers/iio/adc/ab8500-gpadc.c
index 4c46a20..930ce96 100644 (file)
--- a/drivers/iio/adc/ab8500-gpadc.c
+++ b/drivers/iio/adc/ab8500-gpadc.c
@@ -942,7 +942,6 @@ static const struct iio_info ab8500_gpadc_info = {
        .read_raw = ab8500_gpadc_read_raw,
 };
 
-#ifdef CONFIG_PM
 static int ab8500_gpadc_runtime_suspend(struct device *dev)
 {
        struct iio_dev *indio_dev = dev_get_drvdata(dev);
@@ -965,7 +964,6 @@ static int ab8500_gpadc_runtime_resume(struct device *dev)
 
        return ret;
 }
-#endif
 
 /**
  * ab8500_gpadc_parse_channel() - process devicetree channel configuration
@@ -1199,20 +1197,16 @@ static int ab8500_gpadc_remove(struct platform_device *pdev)
        return 0;
 }
 
-static const struct dev_pm_ops ab8500_gpadc_pm_ops = {
-       SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
-                               pm_runtime_force_resume)
-       SET_RUNTIME_PM_OPS(ab8500_gpadc_runtime_suspend,
-                          ab8500_gpadc_runtime_resume,
-                          NULL)
-};
+static DEFINE_RUNTIME_DEV_PM_OPS(ab8500_gpadc_pm_ops,
+                                ab8500_gpadc_runtime_suspend,
+                                ab8500_gpadc_runtime_resume, NULL);
 
 static struct platform_driver ab8500_gpadc_driver = {
        .probe = ab8500_gpadc_probe,
        .remove = ab8500_gpadc_remove,
        .driver = {
                .name = "ab8500-gpadc",
-               .pm = &ab8500_gpadc_pm_ops,
+               .pm = pm_ptr(&ab8500_gpadc_pm_ops),
        },
 };
 builtin_platform_driver(ab8500_gpadc_driver);