linux-kernel - Re: [PATCHv4 3/6] drm/omap: don't check dispc timings for DSI

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Message-ID: <20181117210425.GD22813@amd>
Date:   Sat, 17 Nov 2018 22:04:25 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sebastian Reichel <sebastian.reichel@...labora.com>
Cc:     Sebastian Reichel <sre@...nel.org>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Tony Lindgren <tony@...mide.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        "H. Nikolaus Schaller" <hns@...delico.com>,
        dri-devel@...ts.freedesktop.org, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com
Subject: Re: [PATCHv4 3/6] drm/omap: don't check dispc timings for DSI

On Fri 2018-11-16 00:06:42, Sebastian Reichel wrote:
> While all display types only forward their VM to the DISPC, this

"While most?"

> is not true for DSI. DSI calculates the VM for DISPC based on its
> own, but its not identical. Actually the DSI VM is not even a valid

"but it is not"

> DISPC VM making this check fail. Let's restore the old behaviour
> and avoid checking the DISPC VM for DSI here.
> 
> Fixes: 7c27fa57ef31 ("drm/omap: Call dispc timings check operation directly")
> Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>

Acked-by: Pavel Machek <pavel@....cz>

With the fixes tag, stable is going to pick this up. Do we want this
in stable?

I believe stable does not need it as it is not going to get manually
updated display support, anyway?

Best regards,
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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