iio: adc: stmpe-adc: 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.  This one is a little unusual as
no suspend callback, but the cleanup is still worthwhile (and eventual
aim is to get rid of old macro).

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-8-jic23@kernel.org

diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c
index 000e5cf..67518e4 100644 (file)
--- a/drivers/iio/adc/stmpe-adc.c
+++ b/drivers/iio/adc/stmpe-adc.c
@@ -333,7 +333,7 @@ static int stmpe_adc_probe(struct platform_device *pdev)
        return devm_iio_device_register(&pdev->dev, indio_dev);
 }
 
-static int __maybe_unused stmpe_adc_resume(struct device *dev)
+static int stmpe_adc_resume(struct device *dev)
 {
        struct iio_dev *indio_dev = dev_get_drvdata(dev);
        struct stmpe_adc *info = iio_priv(indio_dev);
@@ -343,7 +343,7 @@ static int __maybe_unused stmpe_adc_resume(struct device *dev)
        return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(stmpe_adc_pm_ops, NULL, stmpe_adc_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(stmpe_adc_pm_ops, NULL, stmpe_adc_resume);
 
 static const struct of_device_id stmpe_adc_ids[] = {
        { .compatible = "st,stmpe-adc", },
@@ -355,7 +355,7 @@ static struct platform_driver stmpe_adc_driver = {
        .probe          = stmpe_adc_probe,
        .driver         = {
                .name   = "stmpe-adc",
-               .pm     = &stmpe_adc_pm_ops,
+               .pm     = pm_sleep_ptr(&stmpe_adc_pm_ops),
                .of_match_table = stmpe_adc_ids,
        },
 };