linux-kernel - Re: [PATCH] asus_atk0110: add support for Asus P7P55D

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Message-ID: <68676e00909290754o433cb3e7mea8c6e4931934f8d@mail.gmail.com>
Date:	Tue, 29 Sep 2009 16:54:33 +0200
From:	Luca Tettamanti <kronos.it@...il.com>
To:	Robert Hancock <hancockrwd@...il.com>
Cc:	lm-sensors@...sensors.org, linux-kernel@...r.kernel.org,
	Jean Delvare <khali@...ux-fr.org>
Subject: Re: [PATCH] asus_atk0110: add support for Asus P7P55D

On Tue, Sep 29, 2009 at 4:40 PM, Robert Hancock <hancockrwd@...il.com> wrote:
> On Tue, Sep 29, 2009 at 8:07 AM, Luca Tettamanti <kronos.it@...il.com> wrote:
>>>>> Hi Robert,
>>>>> I have a new patch for you :)
>>>>> It contains the previous changes to handle the bigger ASBF buffer plus a new
>>>>> method to enable the EC as suggested by Asus. Be sure to compile with
>>>>> HWMON_DEBUG_CHIP enabled.
>>>>
>>>> Excellent.. seems to work now and give actually updating sensor readings :-)
>>>
>>> Have seen a couple of these though, looks like about once an hour:
>>>
>>> ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl]
>>> (20090903/evregion-424)
>>> ACPI Error (psparse-0537): Method parse/execution failed
>>> [\_SB_.PCI0.SBRG.ASOC.GIT6] (Node ffff88013ba778c0), AE_TIME
>>> ACPI Error (psparse-0537): Method parse/execution failed
>>> [\_SB_.PCI0.SBRG.ASOC.GITM] (Node ffff88013ba6ea40), AE_TIME
>>> ATK0110 ATK0110:00: atk_read_value_new: ACPI exception: AE_TIME
>>>
>>> Maybe sometimes the embedded controller takes longer than the timeout
>>> to process, or something?
>>
>> Is there a message like "input buffer is not empty" before that?
>
> Nope, that's all I'm getting each time it happens. Suggestions/debug
> patches welcome..

drivers/acpi/ec.c:30, uncomment "#define DEBUG"
Next step would be rising the timeouts and/or retry count in ec_poll
(will ask support from ACPI gurus...)

L
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