linux-kernel - Re: OMAP4 HDMI PHY bug work-around for stable

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Date:	Tue, 28 Feb 2012 10:03:13 +0200
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	stable@...nel.org, stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: OMAP4 HDMI PHY bug work-around for stable

Hi,

I haven't seen these merged nor any comment for these. Perhaps
stable@...nel.org was wrong address, so adding stable@...r.kernel.org
too.

I have added one additional fix into for-3.2-stable branch, which fixes
a problem with panel detection that the GPIO changes brought.

 Tomi

On Thu, 2012-02-09 at 13:44 +0200, Tomi Valkeinen wrote:
> Hi,
> 
> There is a hardware bug on OMAP4, which may cause the HDMI output to
> break irreversibly. A work-around for the bug has been merged into
> mainline, but is missing from stable.
> 
> I've backported the necessary patches on top of 3.0, 3.1 and 3.2 stable
> trees, and pushed the following branches to:
> 
> git://gitorious.org/linux-omap-dss2/linux.git
> 
> fixes/for-3.0-stable
> fixes/for-3.1-stable
> fixes/for-3.2-stable
> 
> 3.0 and 3.1 branches additionally contain a patch "OMAP: DSS2: HDMI: use
> default dividers", which fixes a problem with the HDMI clock divider.
> Without that the HDMI output won't start at all on those versions.
> 
> The branches contain the following backported patches:
> 
>       OMAP: DSS2: HDMI: use default dividers
>       OMAP: 4430SDP/Panda: use gpio_free_array to free HDMI gpios
>       OMAP: 4430SDP/Panda: rename HPD GPIO to CT_CP_HPD
>       OMAPDSS: remove wrong HDMI HPD muxing
>       OMAP: 4430SDP/Panda: setup HDMI GPIO muxes
>       OMAP: 4430SDP/Panda: add HDMI HPD gpio
>       OMAPDSS: HDMI: PHY burnout fix
> 
> Of those, the actual fix is in the last one, but as the GPIOs for HDMI
> were a mess, they needed some cleanup patches before the fix could be
> made.
> 
> I'm not familiar with the process with stable kernels, so are the
> branches above fine to get them merged? Or should I send the patches
> with git-send-email?
> 
>  Tomi
> 


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