linux-kernel - Re: gpio_keys and how PXA27x sets gpio_set_wake() (was Re: sharp c-3000 aka spitz: fix warn

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Message-ID: <bc64b4641001260323y496bf7cdv507085644fadb0fe@mail.gmail.com>
Date:	Tue, 26 Jan 2010 14:23:56 +0300
From:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
To:	Stanislav Brabec <utx@...guin.cz>
Cc:	Eric Miao <eric.y.miao@...il.com>, Andrew Morton <akpm@...l.org>,
	thommycheck <thommycheck@...il.com>, dtor <dtor@...l.ru>,
	arminlitzel <arminlitzel@....de>,
	linux-input <linux-input@...r.kernel.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	Dirk <Dirk@...er-online.de>, "Rafael J. Wysocki" <rjw@...k.pl>,
	lenz <lenz@...wisc.edu>, rpurdie <rpurdie@...ys.net>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	Pavel Machek <pavel@....cz>, Cyril Hrubis <metan@....cz>,
	zaurus-devel <zaurus-devel@...ts.linuxtogo.org>,
	omegamoon <omegamoon@...il.com>, Vojtech Pavlik <vojtech@...e.cz>
Subject: Re: gpio_keys and how PXA27x sets gpio_set_wake() (was Re: sharp 
	c-3000 aka spitz: fix warn_on introduced in 2.6.32-rc1)

Hello,

2010/1/26 Stanislav Brabec <utx@...guin.cz>:
> Eric Miao wrote:
>> > The problem affects gpio_keys: It is a driver implementing "one key per
>> > gpio". It now handles On/Off and lid switches on Zaurus. Lid switches
>> > are on "normal" GPIOs, On/Off switch is wired to PKWR capable GPIO.
>> Ain't On/Off switch one of the matrix key? And so SPITZ_GPIO_KEY_INT
>> could be used to handle that?
>
> No. On/Off is connected directly to GPIO 95. Other keys use strobe/sense
> matrix keypad.
>
> SPITZ_GPIO_KEY_INT is a bit unspecific. I think it means: Charger was
> inserted or key was pressed or On/Off was pressed.

This seems to be true. At least they used the same design on tosa and other
zaurii.


-- 
With best wishes
Dmitry
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