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Message-ID: <03d20d6d77b54c25b9d7e65899a67359fae6130a.camel@mediatek.com>
Date: Fri, 20 Dec 2024 03:47:07 +0000
From: CK Hu (胡俊光) <ck.hu@...iatek.com>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
"chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>
CC: "robh@...nel.org" <robh@...nel.org>, "jie.qiu@...iatek.com"
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<mripard@...nel.org>, Jitao Shi (石记涛)
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<linux-mediatek@...ts.infradead.org>, "dri-devel@...ts.freedesktop.org"
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<junzhi.zhao@...iatek.com>
Subject: Re: [PATCH v3 14/33] drm/mediatek: mtk_hdmi: Move audio params
selection to new function
Hi, Angelo:
On Tue, 2024-12-17 at 16:43 +0100, AngeloGioacchino Del Regno wrote:
> External email : Please do not click links or open attachments until you have verified the sender or the content.
>
>
> 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));
You copy to local variable, so this function does nothing.
> +
> + 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);
hdmi_params has not been initialized.
Regards,
CK
>
> return 0;
> --
> 2.47.0
>
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