Re: [PATCH] hwmon: applesmc: restore keyboard backlight on resume

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Andrew Morton wrote:
> On Sat, 22 Aug 2009 23:33:52 +0200
> "Henrik Rydberg" <rydberg@xxxxxxxxxxx> wrote:
> 
>> On resume from suspend, the driver currently resets the logical
>> state as if it was brought up from halt. This patch uses the
>> dev_pm_ops.resume method to synchronize the hardware with the
>> memorized logical state, bringing back the backlight to the level
>> prior to suspend.
> 
> What are the runtime effects of this change?
> 

My apologies, the patch has two flaws.

1) For macbook models without keyboard backlight, the resume function
will fail internally, presumably resulting in a small unnecessary delay.

2) The accelerometer does not reset properly after hibernation.

Please drop this patch from -mm, I am sending a corrected patch
with a slightly different title. Sorry about this.

Henrik

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