linux-kernel - Re: [Patch v2 15/20] media: ti-vpe: cal: Add subdev s

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Message-ID: <20191106090839.GD6253@valkosipuli.retiisi.org.uk>
Date:   Wed, 6 Nov 2019 11:08:39 +0200
From:   Sakari Ailus <sakari.ailus@....fi>
To:     Benoit Parrot <bparrot@...com>
Cc:     Hans Verkuil <hverkuil@...all.nl>, linux-media@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [Patch v2 15/20] media: ti-vpe: cal: Add subdev s_power hooks

Hi Benoit,

On Mon, Nov 04, 2019 at 01:31:35PM -0600, Benoit Parrot wrote:
> Based on V4L2 documentations bridge driver must power on and off sub
> device explicitly if media-controller mode is not used.

This isn't really related to MC but the fact that V4L2 still uses a
V4L2-specific way to manage power state of devices that predates runtime
PM.

-- 
Regards,

Sakari Ailus