iio:accel:stk8ba50: 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.

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/20220130193147.279148-10-jic23@kernel.org

diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 517c57e..0067ec5 100644 (file)
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -504,7 +504,6 @@ static int stk8ba50_remove(struct i2c_client *client)
        return stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int stk8ba50_suspend(struct device *dev)
 {
        struct stk8ba50_data *data;
@@ -523,12 +522,8 @@ static int stk8ba50_resume(struct device *dev)
        return stk8ba50_set_power(data, STK8BA50_MODE_NORMAL);
 }
 
-static SIMPLE_DEV_PM_OPS(stk8ba50_pm_ops, stk8ba50_suspend, stk8ba50_resume);
-
-#define STK8BA50_PM_OPS (&stk8ba50_pm_ops)
-#else
-#define STK8BA50_PM_OPS NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(stk8ba50_pm_ops, stk8ba50_suspend,
+                               stk8ba50_resume);
 
 static const struct i2c_device_id stk8ba50_i2c_id[] = {
        {"stk8ba50", 0},
@@ -546,7 +541,7 @@ MODULE_DEVICE_TABLE(acpi, stk8ba50_acpi_id);
 static struct i2c_driver stk8ba50_driver = {
        .driver = {
                .name = "stk8ba50",
-               .pm = STK8BA50_PM_OPS,
+               .pm = pm_sleep_ptr(&stk8ba50_pm_ops),
                .acpi_match_table = ACPI_PTR(stk8ba50_acpi_id),
        },
        .probe =            stk8ba50_probe,