linux-kernel - Re: [PATCH] pinctrl: msm: drop wake

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Date:	Wed, 12 Mar 2014 14:55:32 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Josh Cartwright <joshc@...eaurora.org>
Cc:	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: msm: drop wake_irqs bitmap

On Wed, Mar 5, 2014 at 8:33 PM, Josh Cartwright <joshc@...eaurora.org> wrote:

> Currently, the wake_irqs bitmap is used to track whether there are any
> gpio's which are configured as wake irqs, and uses this to determine
> whether or not to call enable_irq_wake()/disable_irq_wake() on the
> summary interrupt.
>
> However, the genirq core already handles this case, by maintaining a
> 'wake_count' per irq_desc, and only calling into the controlling
> irq_chip when wake_count transitions 0 <-> 1.
>
> Drop this bitmap, and unconditionally call irq_set_irq_wake() on the
> summary interrupt.
>
> Signed-off-by: Josh Cartwright <joshc@...eaurora.org>

Delighted to see you folks working on this driver.
Patch applied with Björn's ACK.

Yours,
Linus Walleij
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