linux-kernel - [PATCH] media: staging: rkisp1: isp: do not set invalid mbus code for pad

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Date:   Thu,  6 Feb 2020 19:07:12 -0300
From:   Helen Koike <helen.koike@...labora.com>
To:     linux-media@...r.kernel.org
Cc:     dafna.hirschfeld@...labora.com, hverkuil@...all.nl,
        linux-rockchip@...ts.infradead.org, mchehab@...nel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Helen Koike <helen.koike@...labora.com>,
        Wojciech Zabolotny <wzab01@...il.com>
Subject: [PATCH] media: staging: rkisp1: isp: do not set invalid mbus code for pad

When setting source pad, check if the given mbus code is indeed valid
for source pad, if not, then set the default code.
Same for sink pad.

Fixes: d65dd85281fb ("media: staging: rkisp1: add Rockchip ISP1 base driver")

Reported-by: Wojciech Zabolotny <wzab01@...il.com>
Signed-off-by: Helen Koike <helen.koike@...labora.com>
---
 drivers/staging/media/rkisp1/rkisp1-isp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkisp1/rkisp1-isp.c b/drivers/staging/media/rkisp1/rkisp1-isp.c
index 328c7ea60971..db892620a567 100644
--- a/drivers/staging/media/rkisp1/rkisp1-isp.c
+++ b/drivers/staging/media/rkisp1/rkisp1-isp.c
@@ -683,7 +683,7 @@ static void rkisp1_isp_set_src_fmt(struct rkisp1_isp *isp,
 
 	src_fmt->code = format->code;
 	mbus_info = rkisp1_isp_mbus_info_get(src_fmt->code);
-	if (!mbus_info) {
+	if (!mbus_info || !(mbus_info->direction & RKISP1_DIR_SRC)) {
 		src_fmt->code = RKISP1_DEF_SRC_PAD_FMT;
 		mbus_info = rkisp1_isp_mbus_info_get(src_fmt->code);
 	}
@@ -767,7 +767,7 @@ static void rkisp1_isp_set_sink_fmt(struct rkisp1_isp *isp,
 					  which);
 	sink_fmt->code = format->code;
 	mbus_info = rkisp1_isp_mbus_info_get(sink_fmt->code);
-	if (!mbus_info) {
+	if (!mbus_info || !(mbus_info->direction & RKISP1_DIR_SINK)) {
 		sink_fmt->code = RKISP1_DEF_SINK_PAD_FMT;
 		mbus_info = rkisp1_isp_mbus_info_get(sink_fmt->code);
 	}
-- 
2.24.0