linux-kernel - Re: [PATCH v2 06/11] media: i2c: ov5645: Drop `power

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Message-ID: <CA+V-a8t-goaBwU2WAZLz1C1f3z-ATm_kS8NAD=zU23nDCTnNEg@mail.gmail.com>
Date: Wed, 25 Sep 2024 16:35:02 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>, 
	Kieran Bingham <kieran.bingham@...asonboard.com>, 
	Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, 
	Jacopo Mondi <jacopo.mondi@...asonboard.com>, Mauro Carvalho Chehab <mchehab@...nel.org>, 
	Hans Verkuil <hverkuil-cisco@...all.nl>, linux-media@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org, 
	Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v2 06/11] media: i2c: ov5645: Drop `power_lock` mutex

Hi Laurent,

Thank you for the review.

On Tue, Sep 24, 2024 at 11:46 PM Laurent Pinchart
<laurent.pinchart@...asonboard.com> wrote:
>
> On Tue, Sep 10, 2024 at 06:06:05PM +0100, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > Drop mutex while applying controls and just rely on
> > pm_runtime_get_if_in_use() call.
>
> Here too the commit message should explain why the mutex can be dropped.
> Given that it is only used in .s_ctrl(), and the control framework
> serializes calls to the function, the mutex is not needed.
>
Agreed, I'll update the commit message as above and send a v3.

Cheers,
Prabhakar