linux-kernel - [PATCH] media: mediatek: vcodec: Use 4K frame size when supported by stateful decoder

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Date:   Thu,  2 Mar 2023 21:18:21 +0800
From:   Pin-yen Lin <treapking@...omium.org>
To:     Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Tzung-Bi Shih <tzungbi@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Chen-Yu Tsai <wenst@...omium.org>, linux-media@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        Pin-yen Lin <treapking@...omium.org>
Subject: [PATCH] media: mediatek: vcodec: Use 4K frame size when supported by stateful decoder

After commit b018be06f3c7 ("media: mediatek: vcodec: Read max resolution
from dec_capability"), the stateful video decoder driver never really
sets its output frame size to 4K.

Parse the decoder capability reported by the firmware, and update the
output frame size in mtk_init_vdec_params to enable 4K frame size when
available.

Fixes: b018be06f3c7 ("media: mediatek: vcodec: Read max resolution from dec_capability")
Signed-off-by: Pin-yen Lin <treapking@...omium.org>
---

 .../mediatek/vcodec/mtk_vcodec_dec_stateful.c        | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
index 035c86e7809f..679f4dc9acfb 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateful.c
@@ -11,7 +11,7 @@
 #include "mtk_vcodec_dec_pm.h"
 #include "vdec_drv_if.h"
 
-static const struct mtk_video_fmt mtk_video_formats[] = {
+static struct mtk_video_fmt mtk_video_formats[] = {
 	{
 		.fourcc = V4L2_PIX_FMT_H264,
 		.type = MTK_FMT_DEC,
@@ -580,6 +580,16 @@ static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx)
 
 static void mtk_init_vdec_params(struct mtk_vcodec_ctx *ctx)
 {
+	unsigned int i;
+
+	if (!(ctx->dev->dec_capability & VCODEC_CAPABILITY_4K_DISABLED)) {
+		for (i = 0; i < num_supported_formats; i++) {
+			mtk_vdec_framesizes[i].stepwise.max_width =
+				VCODEC_DEC_4K_CODED_WIDTH;
+			mtk_vdec_framesizes[i].stepwise.max_height =
+				VCODEC_DEC_4K_CODED_HEIGHT;
+		}
+	}
 }
 
 static struct vb2_ops mtk_vdec_frame_vb2_ops = {
-- 
2.39.2.722.g9855ee24e9-goog