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From:   Chunxu Li <chunxu.li@mediatek.com>
To:     <broonie@kernel.org>, <pierre-louis.bossart@linux.intel.com>,
        <peter.ujfalusi@linux.intel.com>, <lgirdwood@gmail.com>,
        <angelogioacchino.delregno@collabora.com>, <daniel.baluta@nxp.com>
CC:     <matthias.bgg@gmail.com>, <yc.hung@mediatek.com>,
        <linux-kernel@vger.kernel.org>, <alsa-devel@alsa-project.org>,
        <sound-open-firmware@alsa-project.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        <project_global_chrome_upstream_group@mediatek.com>,
        Chunxu Li <chunxu.li@mediatek.com>
Subject: [PATCH] ASoC: SOF: mediatek: add pcm_hw_params callback for mt8186
Date:   Sat, 17 Sep 2022 10:26:10 +0800
Message-ID: <20220917022610.594-1-chunxu.li@mediatek.com>
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Precedence: bulk

add pcm_hw_params callback for mt8186 to support continue
update dma host position

Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
---
 sound/soc/sof/mediatek/mt8186/mt8186.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c
index a1be5d74f40b..9ec89fc7fec0 100644
--- 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 */
-- 
2.25.1