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intel_sst: ignore IRQ when suspended 

The irq for audio is shared, so when device is supended driver should
not the read register and ignore the interrupt.

This patch ignores interrupts when device is suspended.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Ramesh Babu K V <ramesh.babu@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Vinod Koul 2011-05-03 17:32:25 +01:00 committed by Greg Kroah-Hartman
parent 1bea302c2f
commit c3e25a24b5
1 changed files with 3 additions and 0 deletions
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3
drivers/staging/intel_sst/intel_sst.c
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@ -107,6 +107,9 @@ static irqreturn_t intel_sst_interrupt(int irq, void *context)
unsigned int size = 0, str_id;
struct stream_info *stream ;
/* Do not handle interrupt in suspended state */
if (drv->sst_state == SST_SUSPENDED)
return IRQ_NONE;
/* Interrupt arrived, check src */
isr.full = sst_shim_read(drv->shim, SST_ISRX);