ASoC: Intel: Don't issue ipc when processing response
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>
diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c
index 1ca71a2..ae204a6 100644
--- a/sound/soc/intel/sst-haswell-ipc.c
+++ b/sound/soc/intel/sst-haswell-ipc.c
@@ -457,9 +457,10 @@
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;
}