From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: gta02: Add gpio bank B quirk for hardware revision 5 and earlier
Date: Sun, 29 Nov 2009 09:34:25 +0100 [thread overview]
Message-ID: <20091129083425.GB1530@ucw.cz> (raw)
In-Reply-To: <1259377532-8012-5-git-send-email-lars@metafoo.de>
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?
Pavel
--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2009-11-29 8:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-28 3:05 ARM: gta02: Add Button, LED and Vibrator support Lars-Peter Clausen
2009-11-28 3:05 ` [PATCH] ARM: gta02: Add button support Lars-Peter Clausen
2009-11-28 3:05 ` [PATCH] ARM: gta02: Add LED support Lars-Peter Clausen
2009-11-28 3:05 ` [PATCH] ARM: gta02: Add vibrator support Lars-Peter Clausen
2009-11-28 3:05 ` [PATCH] ARM: gta02: Add gpio bank B quirk for hardware revision 5 and earlier Lars-Peter Clausen
2009-11-29 8:34 ` Pavel Machek [this message]
2009-11-29 10:56 ` Lars-Peter Clausen
2009-11-30 12:31 ` Pavel Machek
2009-11-30 18:56 ` Jamie Lokier
2009-12-01 12:32 ` Pavel Machek
2009-12-01 18:27 ` Ben Dooks
2009-11-29 8:37 ` [PATCH] ARM: gta02: Add vibrator support Pavel Machek
2009-11-29 8:31 ` [PATCH] ARM: gta02: Add button support Pavel Machek
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