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ASoC: Intel: Don't issue ipc when processing response

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Make sure we dont issue IPC when we are processing a response.

Signed-off-by: Paweł Piskorski <pawel.piskorski@intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Jie Yang <yang.jie@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Paweł Piskorski 2014-08-01 23:09:44 +08:00 committed by Mark Brown
parent 97cfc751e1
commit 94ce33456d
1 changed files with 3 additions and 2 deletions
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5
sound/soc/intel/sst-haswell-ipc.c
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@ -457,9 +457,10 @@ static void ipc_tx_msgs(struct kthread_work *work)
return;
}
/* if the DSP is busy we will TX messages after IRQ */
/* if the DSP is busy, we will TX messages after IRQ.
* also postpone if we are in the middle of procesing completion irq*/
ipcx = sst_dsp_shim_read_unlocked(hsw->dsp, SST_IPCX);
if (ipcx & SST_IPCX_BUSY) {
if (ipcx & (SST_IPCX_BUSY | SST_IPCX_DONE)) {
spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
return;
}