From 4fd1e6a9abb3b6bb923df17da2afb710746f3963 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 14 Jun 2022 20:10:51 +0100 Subject: [PATCH] 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 Reviewed-by: Dafna Hirschfeld Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 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; } @@ -794,12 +795,14 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable) if (ret) goto mutex_unlock; - ret = rkisp1_mipi_csi2_start(&rkisp1->csi, rkisp1->active_sensor); - if (ret) - goto mutex_unlock; - rkisp1_isp_start(rkisp1); + ret = rkisp1_mipi_csi2_start(&rkisp1->csi, rkisp1->active_sensor); + if (ret) { + rkisp1_isp_stop(rkisp1); + goto mutex_unlock; + } + ret = v4l2_subdev_call(rkisp1->active_sensor->sd, video, s_stream, true); if (ret) {