linux-kernel - 2.6.33-rc3 regression: leds_alix2: can't allocate I/O for GPIO

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Message-id: <4B45B6DD.4060903@nets.rwth-aachen.de>
Date:	Thu, 07 Jan 2010 11:26:37 +0100
From:	Arnd Hannemann <hannemann@...s.rwth-aachen.de>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	linux-geode@...ts.infradead.org, rpurdie@...ys.net
Subject: 2.6.33-rc3 regression: leds_alix2: can't allocate I/O for GPIO

Hi,

with 2.6.33-rc3 the LEDs are not working anymore on my Geode embedded board:
If I remember correctly this was working fine with 2.6.32, but certainly with 2.6.31

relevant dmesg output of 2.6.33-rc3:

[    0.709643] cs5535_gpio: base=0x6100 mask=0xb003c66 major=253

[    2.207947] leds_alix2: system is recognized as "PC Engines ALIX.2 v0.99h"
[    2.228678] leds_alix2: can't allocate I/O for GPIO


For reference dmesg of 2.6.31.3:

[    0.611953] cs5535_gpio: base=0x6100 mask=0xb003c66 major=253

[    2.379114] leds_alix2: system is recognized as "PC Engines ALIX.2"
[    2.399097] Registered led device: alix:1
[    2.411404] Registered led device: alix:2
[    2.423720] Registered led device: alix:3

Best regards,
Arnd
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