Commit 68aa7ee1 authored Jul 10, 2015 by Philipp Zabel Committed by Mauro Carvalho Chehab Jul 17, 2015

[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>

parent 47f3fa63

drivers/media/platform/coda/coda-bit.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -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);