linux-kernel - Re: [PATCH v2] msm: gpio: Add set_wake support to msm7200a-gpio's irq

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Message-ID: <4C336020.3090206@codeaurora.org>
Date:	Tue, 06 Jul 2010 09:56:00 -0700
From:	Greg Bean <gbean@...eaurora.org>
To:	Daniel Walker <dwalker@...eaurora.org>
CC:	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] msm: gpio: Add set_wake support to msm7200a-gpio's
 irq_chip.

>> Add power-management and irq_chip hooks to allow configuration
>> of msm-gpio irq lines as wakeup sources.
>
> What level of correlation is there between power management and the wake
> up hooks? Just irq_masks ?

When the system sleeps, gpio-based irqs which are not configured as wake-up 
sources are disabled in the controller hardware to prevent latching and 
unwanted wakeups.

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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