linux-kernel - Re: [PATCH v3] media: mediatek: vcodec: Force capture queue format to MM21

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Date:   Tue, 14 Mar 2023 10:45:25 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v3] media: mediatek: vcodec: Force capture queue format to
 MM21

Il 14/03/23 08:25, Yunfei Dong ha scritto:
> Libyuv is one software library used to covert format. Only covert
> mediatek uncompressed mode MM21 to standard yuv420 for MT21 is
> compressed mode. Need to set capture queue format to MM21 in order
> to use Libyuv when scp firmware support MM21 and MT21.
> 
> Fixes: 7501edef6b1f ("media: mediatek: vcodec: Different codec using different capture format")
> Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>


After the firmware gets sent to linux-firmware *and ONLY after that*:

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

> ---
> changed with v2:
> - re-write commit message.
> - change the driver flow.
> changed with v1:
> - add Fixes tag.
> ---
>   .../platform/mediatek/vcodec/mtk_vcodec_dec.c | 24 +++----------------
>   1 file changed, 3 insertions(+), 21 deletions(-)
> 
> diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> index 641f533c417f..c99705681a03 100644
> --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
> @@ -39,10 +39,9 @@ static bool mtk_vdec_get_cap_fmt(struct mtk_vcodec_ctx *ctx, int format_index)
>   {
>   	const struct mtk_vcodec_dec_pdata *dec_pdata = ctx->dev->vdec_pdata;
>   	const struct mtk_video_fmt *fmt;
> -	struct mtk_q_data *q_data;
>   	int num_frame_count = 0, i;
> -	bool ret = true;
>   
> +	fmt = &dec_pdata->vdec_formats[format_index];
>   	for (i = 0; i < *dec_pdata->num_formats; i++) {
>   		if (dec_pdata->vdec_formats[i].type != MTK_FMT_FRAME)
>   			continue;
> @@ -50,27 +49,10 @@ static bool mtk_vdec_get_cap_fmt(struct mtk_vcodec_ctx *ctx, int format_index)
>   		num_frame_count++;
>   	}
>   
> -	if (num_frame_count == 1)
> +	if (num_frame_count == 1 || fmt->fourcc == V4L2_PIX_FMT_MM21)
>   		return true;
>   
> -	fmt = &dec_pdata->vdec_formats[format_index];
> -	q_data = &ctx->q_data[MTK_Q_DATA_SRC];
> -	switch (q_data->fmt->fourcc) {
> -	case V4L2_PIX_FMT_VP8_FRAME:
> -		if (fmt->fourcc == V4L2_PIX_FMT_MM21)
> -			ret = true;
> -		break;
> -	case V4L2_PIX_FMT_H264_SLICE:
> -	case V4L2_PIX_FMT_VP9_FRAME:
> -		if (fmt->fourcc == V4L2_PIX_FMT_MM21)
> -			ret = false;
> -		break;
> -	default:
> -		ret = true;
> -		break;
> -	}
> -
> -	return ret;
> +	return false;
>   }
>   
>   static struct mtk_q_data *mtk_vdec_get_q_data(struct mtk_vcodec_ctx *ctx,