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authorPhilipp Zabel <p.zabel@pengutronix.de>2015-07-10 10:37:44 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-07-17 11:23:01 -0300
commit68aa7ee15cd683006ec1ac91ad60c019bf62d978 (patch)
treeb0018fc03521e8cb6ab420c870c45d3f825690f3
parent47f3fa63ee5c0e6bdf9c9d5ed73fc791981336e4 (diff)
[media] coda: reset CODA960 hardware after sequence end
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>
-rw-r--r--drivers/media/platform/coda/coda-bit.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 25910ccd2da0..bcb9911d5e3f 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1347,6 +1347,14 @@ static void coda_seq_end_work(struct work_struct *work)
"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,
ctx->bitstream.vaddr, ctx->bitstream.size);

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