linux-kernel - RE: [PATCH 8/8] media: rzg2l-cru: rzg2l-core: Use devm_pm_runtime

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Message-ID:
 <TY3PR01MB113462B62C51C75B2DDE7B4C386F22@TY3PR01MB11346.jpnprd01.prod.outlook.com>
Date: Mon, 10 Feb 2025 11:57:24 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: Tommaso Merciai <tomm.merciai@...il.com>, Tommaso Merciai
	<tomm.merciai@...il.com>
CC: "linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>,
	"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>, Prabhakar
 Mahadev Lad <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"
	<devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 8/8] media: rzg2l-cru: rzg2l-core: Use
 devm_pm_runtime_enable()

Hi Tommaso Merciai,

> -----Original Message-----
> From: Tommaso Merciai <tomm.merciai@...il.com>
> Sent: 10 February 2025 11:46
> Subject: [PATCH 8/8] media: rzg2l-cru: rzg2l-core: Use devm_pm_runtime_enable()
> 
> Use newly added devm_pm_runtime_enable() into rzg2l_cru_probe() and drop unnecessary
> pm_runtime_disable() from rzg2l_cru_probe() and rzg2l_csi2_remove().
> 
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>

Reviewed-by: Biju Das <biju.das.jz@...renesas.com>

Cheers,
Biju

> ---
>  drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> index 70fed0ce45ea..5548b328d970 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> @@ -287,7 +287,9 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
> 
>  	cru->num_buf = RZG2L_CRU_HW_BUFFER_DEFAULT;
>  	pm_suspend_ignore_children(dev, true);
> -	pm_runtime_enable(dev);
> +	ret = devm_pm_runtime_enable(dev);
> +	if (ret)
> +		return ret;
> 
>  	ret = rzg2l_cru_media_init(cru);
>  	if (ret)
> @@ -297,7 +299,6 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
> 
>  error_dma_unregister:
>  	rzg2l_cru_dma_unregister(cru);
> -	pm_runtime_disable(dev);
> 
>  	return ret;
>  }
> @@ -306,8 +307,6 @@ static void rzg2l_cru_remove(struct platform_device *pdev)  {
>  	struct rzg2l_cru_dev *cru = platform_get_drvdata(pdev);
> 
> -	pm_runtime_disable(&pdev->dev);
> -
>  	v4l2_async_nf_unregister(&cru->notifier);
>  	v4l2_async_nf_cleanup(&cru->notifier);
> 
> --
> 2.34.1