[PATCH v6 20/42] drm/mediatek: mtk_hdmi: Move audio params selection to new function

AngeloGioacchino Del Regno
2025-02-11T11:34:51Z

In preparation for splitting common bits of this driver, move the
audio params (codec, sample rate/size, input type, i2s format, etc)
selection to a new function called mtk_hdmi_audio_params().

While at it, also rename "hdmi_params" to "aud_params" both to match
the mtk_hdmi struct member name and to clarify that those parameters
are for HDMI Audio and not for HDMI Video configuration.

Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 63 ++++++++++++++++-------------
1 file changed, 35 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 065750075d7c..5a3e0f4e553d 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1465,19 +1465,13 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
* HDMI audio codec callbacks
*/

-static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,
- struct hdmi_codec_daifmt *daifmt,
- struct hdmi_codec_params *params)
+static int mtk_hdmi_audio_params(struct mtk_hdmi *hdmi,
+ struct hdmi_codec_daifmt *daifmt,
+ struct hdmi_codec_params *params)
{
- struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
- struct hdmi_audio_param hdmi_params;
+ struct hdmi_audio_param aud_params = { 0 };
unsigned int chan = params->cea.channels;

- if (!hdmi->audio_enable) {
- dev_err(hdmi->dev, "hdmi audio is in disable state!\n");
- return -EINVAL;
- }
-
dev_dbg(hdmi->dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
params->sample_rate, params->sample_width, chan);

@@ -1486,16 +1480,16 @@ static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,

switch (chan) {
case 2:
- hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
+ aud_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
break;
case 4:
- hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_4_0;
+ aud_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_4_0;
break;
case 6:
- hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_5_1;
+ aud_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_5_1;
break;
case 8:
- hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_7_1;
+ aud_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_7_1;
break;
default:
dev_err(hdmi->dev, "channel[%d] not supported!\n", chan);
@@ -1519,31 +1513,44 @@ static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,

switch (daifmt->fmt) {
case HDMI_I2S:
- hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
- hdmi_params.aud_sample_size = HDMI_AUDIO_SAMPLE_SIZE_16;
- hdmi_params.aud_input_type = HDMI_AUD_INPUT_I2S;
- hdmi_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
- hdmi_params.aud_mclk = HDMI_AUD_MCLK_128FS;
+ aud_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+ aud_params.aud_sample_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+ aud_params.aud_input_type = HDMI_AUD_INPUT_I2S;
+ aud_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
+ aud_params.aud_mclk = HDMI_AUD_MCLK_128FS;
break;
case HDMI_SPDIF:
- hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
- hdmi_params.aud_sample_size = HDMI_AUDIO_SAMPLE_SIZE_16;
- hdmi_params.aud_input_type = HDMI_AUD_INPUT_SPDIF;
+ aud_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+ aud_params.aud_sample_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+ aud_params.aud_input_type = HDMI_AUD_INPUT_SPDIF;
break;
default:
dev_err(hdmi->dev, "%s: Invalid DAI format %d\n", __func__,
daifmt->fmt);
return -EINVAL;
}
-
- memcpy(&hdmi_params.codec_params, params,
- sizeof(hdmi_params.codec_params));
- memcpy(&hdmi->aud_param, &hdmi_params, sizeof(hdmi_params));
+ memcpy(&aud_params.codec_params, params, sizeof(aud_params.codec_params));
+ memcpy(&hdmi->aud_param, &aud_params, sizeof(aud_params));

dev_dbg(hdmi->dev, "codec:%d, input:%d, channel:%d, fs:%d\n",
- hdmi_params.aud_codec, hdmi_params.aud_input_type,
- hdmi_params.aud_input_chan_type, hdmi_params.codec_params.sample_rate);
+ aud_params.aud_codec, aud_params.aud_input_type,
+ aud_params.aud_input_chan_type, aud_params.codec_params.sample_rate);
+
+ return 0;
+}
+
+static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,
+ struct hdmi_codec_daifmt *daifmt,
+ struct hdmi_codec_params *params)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ if (!hdmi->audio_enable) {
+ dev_err(hdmi->dev, "hdmi audio is in disable state!\n");
+ return -EINVAL;
+ }

+ mtk_hdmi_audio_params(hdmi, daifmt, params);
mtk_hdmi_aud_output_config(hdmi, &hdmi->mode);

return 0;
--
2.48.1