linux-kernel - Re: [PATCH AUTOSEL 5.3 084/203] media: omap3isp: Don't set streaming state on random subdevs

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Message-ID: <20190923072503.GA5056@pendragon.ideasonboard.com>
Date:   Mon, 23 Sep 2019 10:25:03 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Sakari Ailus <sakari.ailus@....fi>
Cc:     Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        linux-media@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.3 084/203] media: omap3isp: Don't set streaming
 state on random subdevs

On Mon, Sep 23, 2019 at 10:19:42AM +0300, Sakari Ailus wrote:
> Hi Sasha,
> 
> On Sun, Sep 22, 2019 at 02:41:50PM -0400, Sasha Levin wrote:
> > From: Sakari Ailus <sakari.ailus@...ux.intel.com>
> > 
> > [ Upstream commit 7ef57be07ac146e70535747797ef4aee0f06e9f9 ]
> > 
> > The streaming state should be set to the first upstream sub-device only,
> > not everywhere, for a sub-device driver itself knows how to best control
> > the streaming state of its own upstream sub-devices.
> > 
> > Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
> > Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
> > Signed-off-by: Sasha Levin <sashal@...nel.org>
> 
> I don't disagree with this going to the stable trees as well, but in that
> case it *must* be accompanied by commit e9eb103f0277 ("media: omap3isp: Set
> device on omap3isp subdevs") or the driver will mostly cease to work.
> 
> Could you pick that up as well?

While I don't disagree either, I also think there's no requirement to
get this commit backported to stable branches. It seems to be the result
of a too aggressive auto-selection.

-- 
Regards,

Laurent Pinchart