From b3b7d96817cdb8b6fc353867705275dce8f41ccc Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Tue, 18 Jun 2019 12:45:22 -0400
Subject: [PATCH] media: coda: increment sequence offset for the last returned frame
Git-commit: b3b7d96817cdb8b6fc353867705275dce8f41ccc
Patch-mainline: v5.3-rc1
References: bsc#1051510

If no more frames are decoded in bitstream end mode, and a previously
decoded frame has been returned, the firmware still increments the frame
number. To avoid a sequence number mismatch after decoder restart,
increment the sequence_offset correction parameter.

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>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/media/platform/coda/coda-bit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 843f92312f47..bfe6019e68a8 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -2280,6 +2280,9 @@ static void coda_finish_decode(struct coda_ctx *ctx)
 		else if (ctx->display_idx < 0)
 			ctx->hold = true;
 	} else if (decoded_idx == -2) {
+		if (ctx->display_idx >= 0 &&
+		    ctx->display_idx < ctx->num_internal_frames)
+			ctx->sequence_offset++;
 		/* no frame was decoded, we still return remaining buffers */
 	} else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
 		v4l2_err(&dev->v4l2_dev,
-- 
2.16.4