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.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c
index a1be5d7..9ec89fc 100644 (file)
--- a/sound/soc/sof/mediatek/mt8186/mt8186.c
+++ b/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 */