ASoC: SOF: mediatek: add pcm_hw_params callback for mt8186

add pcm_hw_params callback for mt8186 to support continue
update dma host position
Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
Link: https://lore.kernel.org/r/20220917022610.594-1-chunxu.li@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/mediatek/mt8186/mt8186.c

@@ -460,6 +460,16 @@ static int mt8186_get_bar_index(struct snd_sof_dev *sdev, u32 type)
 	return type;
 }
 
+static int mt8186_pcm_hw_params(struct snd_sof_dev *sdev,
+				struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct snd_sof_platform_stream_params *platform_params)
+{
+	platform_params->cont_update_posn = 1;
+
+	return 0;
+}
+
 static struct snd_soc_dai_driver mt8186_dai[] = {
 {
 	.name = "SOF_DL1",
@@ -526,6 +536,7 @@ static struct snd_sof_dsp_ops sof_mt8186_ops = {
 
 	/* stream callbacks */
 	.pcm_open	= sof_stream_pcm_open,
+	.pcm_hw_params	= mt8186_pcm_hw_params,
 	.pcm_close	= sof_stream_pcm_close,
 
 	/* firmware loading */