This is a note to let you know that I've just added the patch titled
media: mediatek: vcodec: Skip SOURCE_CHANGE & EOS events for stateless
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-mediatek-vcodec-skip-source_change-eos-events-.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4ed957696e503aeef15acb35ad91a138fc1b7a55
Author: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Date: Mon Jun 20 07:33:49 2022 +0100
media: mediatek: vcodec: Skip SOURCE_CHANGE & EOS events for stateless
[ Upstream commit e13ca460e20ed42fe57a3845b0bb9a82f81f05cd ]
The stateless decoder API does not specify the usage of SOURCE_CHANGE
and EOF events. These events are used by stateful decoders to signal
changes in the bitstream. They do not make sense for stateless decoders.
Do not handle subscription for these two types of events for stateless
decoder instances. This fixes the last v4l2-compliance error:
Control ioctls:
fail: v4l2-test-controls.cpp(946): have_source_change || have_eos
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: FAIL
Fixes: 8cdc3794b2e3 ("media: mtk-vcodec: vdec: support stateless API")
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
index 50cfb18f85ae..01836a1c7d3f 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
@@ -196,6 +196,11 @@ static int vidioc_vdec_querycap(struct file *file, void *priv,
static int vidioc_vdec_subscribe_evt(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub)
{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(fh);
+
+ if (ctx->dev->vdec_pdata->uses_stateless_api)
+ return v4l2_ctrl_subscribe_event(fh, sub);
+
switch (sub->type) {
case V4L2_EVENT_EOS:
return v4l2_event_subscribe(fh, sub, 2, NULL);
