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Date:	Fri, 9 Jan 2015 10:32:32 +0100
From:	Linus Walleij <>
To:	Soren Brinkmann <>
Cc:	Alexandre Courbot <>,,
	"" <>,
	"" <>,
	"" <>
Subject: Re: [PATCH RESEND v3] gpio: lib-sysfs: Add 'wakeup' attribute

On Mon, Jan 5, 2015 at 7:16 PM, Soren Brinkmann
<> wrote:

> Add an attribute 'wakeup' to the GPIO sysfs interface which allows
> marking/unmarking a GPIO as wake IRQ.
> The file 'wakeup' is created in each exported GPIOs directory, if an IRQ
> is associated with that GPIO and the irqchip implements set_wake().
> Writing 'enabled' to that file will enable wake for that GPIO, while
> writing 'disabled' will disable wake.
> Reading that file will return either 'disabled' or 'enabled' depening on
> the currently set flag for the GPIO's IRQ.
> Signed-off-by: Soren Brinkmann <>
> Reviewed-by: Alexandre Courbot <>
> ---
> v3:
>  - add documentation
> v2:
>  - fix error path to unlock mutex before return

Finally applied for v3.20.

Sorry for being a bit conservative and picky at times...

Linus Walleij
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