From mboxrd@z Thu Jan  1 00:00:00 1970
From: lars@metafoo.de (Lars-Peter Clausen)
Date: Sun, 29 Nov 2009 11:56:51 +0100
Subject: [PATCH] ARM: gta02: Add gpio bank B quirk for hardware	revision
	5 and earlier
In-Reply-To: <20091129083425.GB1530@ucw.cz>
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Message-ID: <4B125373.9020505@metafoo.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Pavel Machek wrote:
> Hi!
>
>> On gta02 hardware revision 5 and earlier the basis resistors for
>> transistors of the leds are missing and reading their gpio pin
>> status will always return 0. So we have to shadow the led states
>> in software. This is done by "hijacking" the gpio accessor
>> functions for bank B.
>
> Should that be done in LED driver, instead? Pave
Hi

Nope, that won't work. Every time a gpio on gpb is changed the leds
will turn off. So we would have to ship a special version of each
driver using a gpio pin form gpb. We certainly don't want to do that.

- Lars