[PATCH V3 39/63] GIC: Added dummy handlers for Power Management Suspend Resume

[Russell King - ARM Linux]

And still this patch gets reposted a few more times despite my
objections:

http://lists.arm.linux.org.uk/lurker/message/20100920.150749.c97eda0d.en.html

On Mon, Dec 20, 2010 at 01:55:59PM +0530, Viresh Kumar wrote:
> From: Deepak Sikri <deepak.sikri at st.com>
> 
> enable_irq_wake() has a callback for interrupt controllers.
> But since gic handler did not had this call back associated, it was always
> returning -ENXIO, which was breaking the existing drivers. This patch
> adds dummy handlers in gic in order to avoid breaking of existing drivers.
> 
> Signed-off-by: Deepak Sikri <deepak.sikri at st.com>
> Signed-off-by: Viresh Kumar <viresh.kumar at st.com>
> ---
>  arch/arm/common/gic.c |   13 +++++++++++++
>  1 files changed, 13 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
> index e6388dc..f5561b7 100644
> --- a/arch/arm/common/gic.c
> +++ b/arch/arm/common/gic.c
> @@ -193,6 +193,18 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
>  	chip->unmask(irq);
>  }
>  
> +#ifdef CONFIG_PM
> +
> +static int gic_set_wake(unsigned int irq, unsigned int on)
> +{
> +	return 0;
> +}
> +
> +#else
> +
> +#define gic_set_wake NULL
> +#endif
> +
>  static struct irq_chip gic_chip = {
>  	.name		= "GIC",
>  	.ack		= gic_ack_irq,
> @@ -202,6 +214,7 @@ static struct irq_chip gic_chip = {
>  #ifdef CONFIG_SMP
>  	.set_affinity	= gic_set_cpu,
>  #endif
> +	.set_wake	= gic_set_wake,
>  };
>  
>  void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
> -- 
> 1.7.2.2
> 
> 
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