[PATCH v2 15/18] omap3+: sr: disable spamming interrupts

[Sergei Shtylyov]

Hello.

On 02-03-2011 13:55, Nishanth Menon wrote:

> At times with bad SR configurations especially during silicon bringups,
> we could get continuous spurious interrupts which end up hanging the
> platform in the form of an ISR call for status bits that are
> automatically enabled by the h/w without any s/w clearing option.

> If we detect scenarios where isr was called without the corresponding
> notification bit being set, instead of hanging up the system,
> we will disable interrupt after noting the event in the system log
> to try and keep system sanity and allow developer to debug and fix
> the condition.

> Signed-off-by: Nishanth Menon<nm at ti.com>
> ---
>   arch/arm/mach-omap2/smartreflex.c |   12 ++++++++++--
>   1 files changed, 10 insertions(+), 2 deletions(-)

> diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
> index 49a04ea..d62da3d 100644
> --- a/arch/arm/mach-omap2/smartreflex.c
> +++ b/arch/arm/mach-omap2/smartreflex.c
> @@ -209,8 +209,16 @@ static irqreturn_t sr_interrupt(int irq, void *data)
>   		value = irqstat_to_notifier_v2(status);
>   	}
>
> -	if (sr_class->notify)
> -		sr_class->notify(sr_info->voltdm, value);
> +	/* Attempt some resemblence of recovery! */

    Resemblance?

WBR, Sergei