Re: [PATCH v2] genirq: Set IRQCHIP_SKIP_SET_WAKE flag for dummy_irq_chip

From: Gregory CLEMENT
Date: Wed Apr 15 2015 - 05:29:56 EST


On 15/04/2015 10:14, Roger Quadros wrote:
> Without this system suspend is broken on systems that have
> drivers calling enable/disable_irq_wake() for interrupts based off
> the dummy irq hook.
> (e.g. drivers/gpio/gpio-pcf857x.c)
>
> http://article.gmane.org/gmane.linux.kernel/1879035
>
> Signed-off-by: Roger Quadros <rogerq@xxxxxx>

FWIW:

Reviewed-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>


> ---
> kernel/irq/dummychip.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/kernel/irq/dummychip.c b/kernel/irq/dummychip.c
> index 988dc58..2feb6fe 100644
> --- a/kernel/irq/dummychip.c
> +++ b/kernel/irq/dummychip.c
> @@ -57,5 +57,6 @@ struct irq_chip dummy_irq_chip = {
> .irq_ack = noop,
> .irq_mask = noop,
> .irq_unmask = noop,
> + .flags = IRQCHIP_SKIP_SET_WAKE,
> };
> EXPORT_SYMBOL_GPL(dummy_irq_chip);
>


--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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