media: renesas: rcar-vin: Convert to DEFINE_SIMPLE_DEV_PM_OPS()

Convert the Renesas R-Car Video Input driver from SIMPLE_DEV_PM_OPS() to
DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr().  This lets us drop the
__maybe_unused annotations from its suspend and resume callbacks, and
reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>

Author: geertu

drivers/media/platform/renesas/rcar-vin/rcar-core.c

@@ -849,7 +849,7 @@ static int rvin_isp_init(struct rvin_dev *vin)
  * Suspend / Resume
  */
 
-static int __maybe_unused rvin_suspend(struct device *dev)
+static int rvin_suspend(struct device *dev)
 {
 	struct rvin_dev *vin = dev_get_drvdata(dev);
 
@@ -861,7 +861,7 @@ static int __maybe_unused rvin_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused rvin_resume(struct device *dev)
+static int rvin_resume(struct device *dev)
 {
 	struct rvin_dev *vin = dev_get_drvdata(dev);
 
@@ -1276,13 +1276,13 @@ static void rcar_vin_remove(struct platform_device *pdev)
 	rvin_dma_unregister(vin);
 }
 
-static SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume);
 
 static struct platform_driver rcar_vin_driver = {
 	.driver = {
 		.name = "rcar-vin",
 		.suppress_bind_attrs = true,
-		.pm = &rvin_pm_ops,
+		.pm = pm_sleep_ptr(&rvin_pm_ops),
 		.of_match_table = rvin_of_id_table,
 	},
 	.probe = rcar_vin_probe,