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| author | Philipp Zabel | 2019-04-08 14:32:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-05-31 15:46:17 +0200 |
| commit | 81a0b6ff0209a6daa2f1d98033511dd618847508 (patch) | |
| tree | f84c3928cc8fc2ac1a40c2fd3b5a2ad7f4b69794 /drivers/media | |
| parent | dmaengine: at_xdmac: remove BUG_ON macro in tasklet (diff) | |
| download | kernel-qcow2-linux-81a0b6ff0209a6daa2f1d98033511dd618847508.tar.gz kernel-qcow2-linux-81a0b6ff0209a6daa2f1d98033511dd618847508.tar.xz kernel-qcow2-linux-81a0b6ff0209a6daa2f1d98033511dd618847508.zip | |
media: coda: clear error return value before picture run
[ Upstream commit bbeefa7357a648afe70e7183914c87c3878d528d ]
The error return value is not written by some firmware codecs, such as
MPEG-2 decode on CodaHx4. Clear the error return value before starting
the picture run to avoid misinterpreting unrelated values returned by
sequence initialization as error return value.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/coda/coda-bit.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index d20d3df5778b..a3cfefdbee12 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -1999,6 +1999,9 @@ static int coda_prepare_decode(struct coda_ctx *ctx) /* Clear decode success flag */ coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS); + /* Clear error return value */ + coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB); + trace_coda_dec_pic_run(ctx, meta); coda_command_async(ctx, CODA_COMMAND_PIC_RUN); |