linux-kernel - [PATCH v3 14/33] drm/mediatek: mtk_hdmi: Move audio params selection to new function

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Message-ID: <20241217154345.276919-15-angelogioacchino.delregno@collabora.com>
Date: Tue, 17 Dec 2024 16:43:26 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: chunkuang.hu@...nel.org
Cc: p.zabel@...gutronix.de,
	airlied@...il.com,
	simona@...ll.ch,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	ck.hu@...iatek.com,
	jitao.shi@...iatek.com,
	jie.qiu@...iatek.com,
	junzhi.zhao@...iatek.com,
	dri-devel@...ts.freedesktop.org,
	linux-mediatek@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	kernel@...labora.com,
	dmitry.baryshkov@...aro.org
Subject: [PATCH v3 14/33] drm/mediatek: mtk_hdmi: Move audio params selection to new function

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().

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/gpu/drm/mediatek/mtk_hdmi.c | 46 +++++++++++++++++------------
 1 file changed, 27 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index d2f1d6286fbc..8f5ab97a0261 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1479,12 +1479,11 @@ 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;
 
 	dev_dbg(hdmi->dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
@@ -1495,16 +1494,16 @@ 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);
@@ -1528,26 +1527,35 @@ 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(&aud_params.codec_params, params, sizeof(aud_params.codec_params));
+
+	return 0;
+}
 
-	memcpy(&hdmi_params.codec_params, params,
-	       sizeof(hdmi_params.codec_params));
+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);
+	struct hdmi_audio_param hdmi_params;
 
+	mtk_hdmi_audio_params(hdmi, daifmt, params);
 	mtk_hdmi_audio_set_param(hdmi, &hdmi_params);
 
 	return 0;
-- 
2.47.0