ASoC: SOF: Intel: reset spib_addr before disabling SPIB

The spib_addr register will indicate to the host DMA where the position
is in the buffer currently processed by host SW. The register is ignored
by the host DMA if SPIB is disabled. Reset it to 0 before disabling SPIB.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>

Author: bardliao

sound/soc/sof/intel/hda-stream.c

@@ -198,13 +198,18 @@ int hda_dsp_stream_spib_config(struct snd_sof_dev *sdev,
 
 	mask = (1 << hstream->index);
 
+	/* Reset the spib_addr before disabling SPIB */
+	if (!enable)
+		sof_io_write(sdev, hstream->spib_addr, 0);
+
 	/* enable/disable SPIB for the stream */
 	snd_sof_dsp_update_bits(sdev, HDA_DSP_SPIB_BAR,
 				SOF_HDA_ADSP_REG_CL_SPBFIFO_SPBFCCTL, mask,
 				enable << hstream->index);
 
 	/* set the SPIB value */
-	sof_io_write(sdev, hstream->spib_addr, size);
+	if (enable)
+		sof_io_write(sdev, hstream->spib_addr, size);
 
 	return 0;
 }