linux-kernel - Re: [PATCH v5 09/11] drm/tegra: Reset the SOR on probe

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Message-ID: <CAPnjgZ0FWgRymBJ2MrZtJYUp+QJj+AXr3DPoU3NbuYC6BbZrDw@mail.gmail.com>
Date:	Mon, 2 Mar 2015 08:46:40 -0700
From:	Simon Glass <sjg@...omium.org>
To:	Alexandre Courbot <gnurou@...il.com>
Cc:	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	Dylan Reid <dgreid@...omium.org>,
	Andrew Bresticker <abrestic@...omium.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Terje Bergström <tbergstrom@...dia.com>,
	David Airlie <airlied@...ux.ie>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 09/11] drm/tegra: Reset the SOR on probe

Hi,

On 2 March 2015 at 01:41, Alexandre Courbot <gnurou@...il.com> wrote:
>
> On Thu, Feb 12, 2015 at 5:51 PM, Tomeu Vizoso
> <tomeu.vizoso@...labora.com> wrote:
> > As there isn't a way for the firmware on the Nyan chromebooks to hand
> > over the display to the kernel.
>
> Could this have a side-effect on models for which the firmware *does*
> hand over the display to the kernel? E.g. temporary glitch or black
> screen?
>
> This is probably ok though, as such a handing over would need to be
> documented in the firmware/kernel command line, and could thus be
> caught to disable that code block if needed.

Is there a general way in which this hand-over is done, e.g. with a
device tree binding?

Regards,
Simon
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