linux-kernel - [PATCH 6/8] media: rzg2l-cru: csi2: Use devm_pm_runtime

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Message-Id: <20250210114540.524790-7-tommaso.merciai.xr@bp.renesas.com>
Date: Mon, 10 Feb 2025 12:45:38 +0100
From: Tommaso Merciai <tomm.merciai@...il.com>
To: tomm.merciai@...il.com
Cc: linux-renesas-soc@...r.kernel.org,
	linux-media@...r.kernel.org,
	biju.das.jz@...renesas.com,
	prabhakar.mahadev-lad.rj@...renesas.com,
	Tommaso Merciai <tommaso.merciai.xr@...renesas.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Hans Verkuil <hverkuil@...all.nl>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 6/8] media: rzg2l-cru: csi2: Use devm_pm_runtime_enable()

Use newly added devm_pm_runtime_enable() into rzg2l_csi2_probe() and
drop error path accordingly. Drop also unnecessary pm_runtime_disable()
from rzg2l_csi2_remove().

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index 948f1917b830..4ccf7c5ea58b 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -805,11 +805,13 @@ static int rzg2l_csi2_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	pm_runtime_enable(dev);
+	ret = devm_pm_runtime_enable(dev);
+	if (ret)
+		return ret;
 
 	ret = rzg2l_validate_csi2_lanes(csi2);
 	if (ret)
-		goto error_pm;
+		return ret;
 
 	csi2->subdev.dev = dev;
 	v4l2_subdev_init(&csi2->subdev, &rzg2l_csi2_subdev_ops);
@@ -834,7 +836,7 @@ static int rzg2l_csi2_probe(struct platform_device *pdev)
 	ret = media_entity_pads_init(&csi2->subdev.entity, ARRAY_SIZE(csi2->pads),
 				     csi2->pads);
 	if (ret)
-		goto error_pm;
+		return ret;
 
 	ret = v4l2_subdev_init_finalize(&csi2->subdev);
 	if (ret < 0)
@@ -852,8 +854,6 @@ static int rzg2l_csi2_probe(struct platform_device *pdev)
 	v4l2_async_nf_unregister(&csi2->notifier);
 	v4l2_async_nf_cleanup(&csi2->notifier);
 	media_entity_cleanup(&csi2->subdev.entity);
-error_pm:
-	pm_runtime_disable(dev);
 
 	return ret;
 }
@@ -867,7 +867,6 @@ static void rzg2l_csi2_remove(struct platform_device *pdev)
 	v4l2_async_unregister_subdev(&csi2->subdev);
 	v4l2_subdev_cleanup(&csi2->subdev);
 	media_entity_cleanup(&csi2->subdev.entity);
-	pm_runtime_disable(&pdev->dev);
 }
 
 static int rzg2l_csi2_pm_runtime_suspend(struct device *dev)
-- 
2.34.1