From: Samuel Holland samuel@sholland.org
commit a8876c22eab9a871834f85de83e98bbf7e6e264d upstream.
Previously, the output format was programmed as part of the ioctl() handler. However, this has two problems:
1) If there are multiple active streams with different output formats, the hardware will use whichever format was set last for both streams. Similarly, an ioctl() done in an inactive context will wrongly affect other active contexts. 2) The registers are written while the device is not actively streaming. To enable runtime PM tied to the streaming state, all hardware access needs to be moved inside cedrus_device_run().
The call to cedrus_dst_format_set() is now placed just before the codec-specific callback that programs the hardware.
Cc: stable@vger.kernel.org Fixes: 50e761516f2b ("media: platform: Add Cedrus VPU decoder driver") Suggested-by: Jernej Skrabec jernej.skrabec@siol.net Suggested-by: Paul Kocialkowski paul.kocialkowski@bootlin.com Signed-off-by: Samuel Holland samuel@sholland.org Tested-by: Jernej Skrabec jernej.skrabec@siol.net Reviewed-by: Jernej Skrabec jernej.skrabec@siol.net Reviewed-by: Ezequiel Garcia ezequiel@collabora.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/staging/media/sunxi/cedrus/cedrus_dec.c | 2 ++ drivers/staging/media/sunxi/cedrus/cedrus_video.c | 3 --- 2 files changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c @@ -65,6 +65,8 @@ void cedrus_device_run(void *priv)
v4l2_m2m_buf_copy_metadata(run.src, run.dst, true);
+ cedrus_dst_format_set(dev, &ctx->dst_fmt); + dev->dec_ops[ctx->current_codec]->setup(ctx, &run);
/* Complete request(s) controls if needed. */ --- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c @@ -286,7 +286,6 @@ static int cedrus_s_fmt_vid_cap(struct f struct v4l2_format *f) { struct cedrus_ctx *ctx = cedrus_file2ctx(file); - struct cedrus_dev *dev = ctx->dev; struct vb2_queue *vq; int ret;
@@ -300,8 +299,6 @@ static int cedrus_s_fmt_vid_cap(struct f
ctx->dst_fmt = f->fmt.pix;
- cedrus_dst_format_set(dev, &ctx->dst_fmt); - return 0; }