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@xxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
