From 994a193f221ec52d00230a4d0ce11fe58f993b5c Mon Sep 17 00:00:00 2001 From: "Guoniu.Zhou" Date: Fri, 9 Nov 2018 18:52:46 +0800 Subject: [PATCH] MLK-20326-3: ISI: enable alpha insertion feature for camera Enable global alpha insertion feature for camera Signed-off-by: Guoniu.Zhou --- drivers/media/platform/imx8/mxc-isi-cap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/platform/imx8/mxc-isi-cap.c b/drivers/media/platform/imx8/mxc-isi-cap.c index 87cef0e60dce..0c1a4433411e 100644 --- a/drivers/media/platform/imx8/mxc-isi-cap.c +++ b/drivers/media/platform/imx8/mxc-isi-cap.c @@ -558,7 +558,10 @@ static int mxc_isi_s_ctrl(struct v4l2_ctrl *ctrl) break; case V4L2_CID_ALPHA_COMPONENT: + if (ctrl->val < 0 || ctrl->val > 255) + return -EINVAL; mxc_isi->alpha = ctrl->val; + mxc_isi->alphaen = 1; break; default: -- 2.17.1