ASoC: SOF: mediatek: mt8195: Add pcm_hw_params callback

Add pcm_hw_params callback for mt8195 to support continue
update dma host position

Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220924033559.26599-2-chunxu.li@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/mediatek/mt8195/mt8195.c b/sound/soc/sof/mediatek/mt8195/mt8195.c
index c12192c..882fde7 100644 (file)
--- a/sound/soc/sof/mediatek/mt8195/mt8195.c
+++ b/sound/soc/sof/mediatek/mt8195/mt8195.c
@@ -496,6 +496,16 @@ static int mt8195_get_bar_index(struct snd_sof_dev *sdev, u32 type)
        return type;
 }
 
+static int mt8195_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 void mt8195_adsp_dump(struct snd_sof_dev *sdev, u32 flags)
 {
        u32 dbg_pc, dbg_data, dbg_bus0, dbg_bus1, dbg_inst;
@@ -588,6 +598,7 @@ static struct snd_sof_dsp_ops sof_mt8195_ops = {
 
        /* stream callbacks */
        .pcm_open       = sof_stream_pcm_open,
+       .pcm_hw_params  = mt8195_pcm_hw_params,
        .pcm_close      = sof_stream_pcm_close,
 
        /* firmware loading */