Re: [PATCH] gpio-rcar: .irq_set_wake() support to work with suspend_device_irqs()

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Fri, Nov 7, 2014 at 10:22 AM, Yoshihiro Kaneko <ykaneko0929@xxxxxxxxx> wrote:

> From: Shinya Kuribayashi <shinya.kuribayashi.px@xxxxxxxxxxx>
>
> All IRQs in the kernel get disabled by PM core prior to .suspend_noirq()
> step through kernel/irq/pm.c::suspend_device_irqs().
>
> The SYSC hardware block in the R-Car SoCs, on the other hand, uses any
> interrupt as wake-up source(es) and requires them to be unmasked during
> the system is suspended.
>
> This patch implements .irq_set_wake() which makes __disable_irq() call
> a NOP when a GPIO port is claimed as a wake-up source.
>
> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@xxxxxxxxxxx>
> Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@xxxxxxxxxxx>
> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@xxxxxxxxx>

Patch tentatively applied unless Magnus or Laurent starts complaining...

This driver should be simple to convert to GPIOLIB_IRQCHIP and get
rid of some code overhead.

Yoshihiro, can you look into this?

Yours,
Linus Walleij
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