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From: Nishanth Menon <nm@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: David Anders <x0132446@ti.com>,
	"Murthy, Raghuveer" <raghuveer.murthy@ti.com>,
	"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: [PATCH] OMAP4: Pandaboard: Fixing MMC card detect gpio line
Date: Fri, 17 Dec 2010 12:06:47 -0600	[thread overview]
Message-ID: <4D0BA6B7.3090406@ti.com> (raw)
In-Reply-To: <20101217180251.GQ5941@atomide.com>

Tony Lindgren had written, on 12/17/2010 12:02 PM, the following:
> * Menon, Nishanth <nm@ti.com> [101217 09:50]:
>> On Wed, Dec 8, 2010 at 10:49, David Anders <x0132446@ti.com> wrote:
>>> On 12/07/2010 06:13 AM, Murthy, Raghuveer wrote:
>>>> The .gpio_cd member of omap2_hsmmc_info is not initialized. This
>>>> will default to zero. On Pandaboard this interferes with gpio line
>>>> assigned for powering TFP410 DVI chip.
>>>>
>>>> This fix was missed out in the previous commit bf56f0a6668cd, from
>>>> Nishanth Menon
>>>>
>>>> Signed-off-by: Kishore Kadiyala<kishore.kadiyala@ti.com>
>>>> Signed-off-by: Raghuveer Murthy<raghuveer.murthy@ti.com>
>>>> Acked-by: Nishanth Menon<nm@ti.com>
>>>>
>>> Tested-by: David Anders <x0132446@ti.com>
>> Tony,
>> this is a regression introduced in my commit for .37-rc1. any chance
>> of this making to one of 37 rc cycles? I can re-post this patch
>> including l-a if that is the path you'd like.
> 
> Yes please, and also explain what exactly this breaks.
> 
> If it just breaks MMC card detect with some DVI chip driver that's
> not merged yet, then this would be in the "it never worked before".
The regression is card detect ends up refering to a valid GPIO -> yeah 
as a result the upcoming DVI driver is broken without this patch. given 
that commit bf56f0a6668cd was intended to fix cd, it did not do it 
cleanly - hence my claim of regression. DVI in opinion is just a symptom 
of the wiring of GPIO0 on the board.

ok with considering this a regression?

-- 
Regards,
Nishanth Menon

      reply	other threads:[~2010-12-17 18:06 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-07 12:13 [PATCH] OMAP4: Pandaboard: Fixing MMC card detect gpio line Raghuveer Murthy
2010-12-08 16:49 ` David Anders
2010-12-17 17:50   ` Menon, Nishanth
2010-12-17 18:02     ` Tony Lindgren
2010-12-17 18:06       ` Nishanth Menon [this message]

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