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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-06-14 20:10:51 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-07-17 12:09:07 +0100
commit4fd1e6a9abb3b6bb923df17da2afb710746f3963 (patch)
tree06170a9888b137d3f5e19d66bc1a55f84ae1ce2a /drivers/media
parent8082e2f4994d2ce1ac0ac8d6182e10f3835207c4 (diff)
downloadlinux-4fd1e6a9abb3b6bb923df17da2afb710746f3963.tar.gz
media: rkisp1: isp: Start CSI-2 receiver before ISP
Make sure the ISP is ready to receive data before starting the CSI-2
receiver by starting it first. Similarly, stop the CSI-2 receiver before
the ISP when stopping streaming.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index c05148dd32c0..81c4eb48baab 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -771,8 +771,9 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 		v4l2_subdev_call(rkisp1->active_sensor->sd, video, s_stream,
 				 false);
 
-		rkisp1_isp_stop(rkisp1);
 		rkisp1_mipi_csi2_stop(&rkisp1->csi);
+		rkisp1_isp_stop(rkisp1);
+
 		return 0;
 	}
 
@@ -794,11 +795,13 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 	if (ret)
 		goto mutex_unlock;
 
+	rkisp1_isp_start(rkisp1);
+
 	ret = rkisp1_mipi_csi2_start(&rkisp1->csi, rkisp1->active_sensor);
-	if (ret)
+	if (ret) {
+		rkisp1_isp_stop(rkisp1);
 		goto mutex_unlock;
-
-	rkisp1_isp_start(rkisp1);
+	}
 
 	ret = v4l2_subdev_call(rkisp1->active_sensor->sd, video, s_stream,
 			       true);