linux-kernel - [PATCH 5.18 340/879] media: amphion: fix decoders interlaced field

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Date:   Tue,  7 Jun 2022 18:57:38 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ming Qian <ming.qian@....com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 340/879] media: amphion: fix decoders interlaced field

From: Ming Qian <ming.qian@....com>

[ Upstream commit d9a6a70d65cd7d25bad00580157ad660330023d8 ]

For interlaced frame, the amphion vpu will store the
two fields sequential into one buffer, top-bottom order
so the field should be set to V4L2_FIELD_SEQ_TB.
fix the previous bug that set it to V4L2_FIELD_SEQ_BT wrongly.

Fixes: 6de8d628df6e ("media: amphion: add v4l2 m2m vpu decoder stateful driver")
Signed-off-by: Ming Qian <ming.qian@....com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/amphion/vdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c
index 8f8dfd6ce2c6..c0dfede11ab7 100644
--- a/drivers/media/platform/amphion/vdec.c
+++ b/drivers/media/platform/amphion/vdec.c
@@ -782,7 +782,7 @@ static void vdec_init_fmt(struct vpu_inst *inst)
 	if (vdec->codec_info.progressive)
 		inst->cap_format.field = V4L2_FIELD_NONE;
 	else
-		inst->cap_format.field = V4L2_FIELD_SEQ_BT;
+		inst->cap_format.field = V4L2_FIELD_SEQ_TB;
 	if (vdec->codec_info.color_primaries == V4L2_COLORSPACE_DEFAULT)
 		vdec->codec_info.color_primaries = V4L2_COLORSPACE_REC709;
 	if (vdec->codec_info.transfer_chars == V4L2_XFER_FUNC_DEFAULT)
-- 
2.35.1