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[media] coda: reset CODA960 hardware after sequence end

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On i.MX6, sometimes after decoding a stream, encoding will produce macroblock
errors caused by missing 8-byte sequences in the output stream. Until the cause
for this is found, reset the hardware after sequence end, which seems to help.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Philipp Zabel 2015-07-10 10:37:44 -03:00 committed by Mauro Carvalho Chehab
parent 47f3fa63ee
commit 68aa7ee15c
1 changed files with 8 additions and 0 deletions
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8
drivers/media/platform/coda/coda-bit.c
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@ -1347,6 +1347,14 @@ static void coda_seq_end_work(struct work_struct *work)
"CODA_COMMAND_SEQ_END failed\n"); "CODA_COMMAND_SEQ_END failed\n");
} }
/*
* FIXME: Sometimes h.264 encoding fails with 8-byte sequences missing
* from the output stream after the h.264 decoder has run. Resetting the
* hardware after the decoder has finished seems to help.
*/
if (dev->devtype->product == CODA_960)
coda_hw_reset(ctx);
kfifo_init(&ctx->bitstream_fifo, kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size); ctx->bitstream.vaddr, ctx->bitstream.size);