Patch "media: mediatek: vcodec: Initialize decoder parameters for each instance" has been added to the 5.19-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    media: mediatek: vcodec: Initialize decoder parameters for each instance

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-initialize-decoder-parameters-.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 c34ffc57b8418fc59b50da4c3384b661dbb6ff48
Author: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Date:   Mon Jul 4 09:49:30 2022 +0100

    media: mediatek: vcodec: Initialize decoder parameters for each instance
    
    [ Upstream commit fe3d651627d61210c6905339e5281d3b9db75033 ]
    
    The decoder parameters are stored in each instance's context data. This
    needs to be initialized per-instance, but a previous fix incorrectly
    changed it to only be initialized for the first opened instance. This
    resulted in subsequent instances not correctly signaling the requirement
    for the Requests API.
    
    Fix this by calling the initializing function outside of the
    v4l2_fh_is_singular() conditional block.
    
    Fixes: faddaa735c20 ("media: mediatek: vcodec: Initialize decoder parameters after getting dec_capability")
    Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
    Reviewed-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
    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_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
index 99d7b15f2b9d..eed11a62febf 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
@@ -208,11 +208,12 @@ static int fops_vcodec_open(struct file *file)
 
 		dev->dec_capability =
 			mtk_vcodec_fw_get_vdec_capa(dev->fw_handler);
-		ctx->dev->vdec_pdata->init_vdec_params(ctx);
 
 		mtk_v4l2_debug(0, "decoder capability %x", dev->dec_capability);
 	}
 
+	ctx->dev->vdec_pdata->init_vdec_params(ctx);
+
 	list_add(&ctx->list, &dev->ctx_list);
 
 	mutex_unlock(&dev->dev_mutex);