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Subject[PATCH 1/2] ASoC: SOF: mediatek: mt8195: Add pcm_hw_params callback
Date
Add pcm_hw_params callback for mt8195 to support continue
update dma host position

Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
---
sound/soc/sof/mediatek/mt8195/mt8195.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/sound/soc/sof/mediatek/mt8195/mt8195.c b/sound/soc/sof/mediatek/mt8195/mt8195.c
index c12192c8a6f8..882fde741cf5 100644
--- 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 */
--
2.25.1
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