From: Mark Yao <mark.yao@rock-chips.com>
Date: Wed, 26 Apr 2017 03:10:20 +0000 (+0800)
Subject: drm/rockchip: vop: fix vtotal calc mistake on interlace mode
X-Git-Tag: release-20171130_firefly~4^2~739
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=665ee83b8bcc8072859a27d741c9f7fb7698f537;p=firefly-linux-kernel-4.4.55.git

drm/rockchip: vop: fix vtotal calc mistake on interlace mode

Change-Id: I820d439735dddeaaa5db5fc75356e242a9d77656
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 167058470675..7c125decacc0 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1598,7 +1598,7 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
 		VOP_CTRL_SET(vop, vs_st_end_f1, val);
 		VOP_CTRL_SET(vop, dsp_interlace, 1);
 		VOP_CTRL_SET(vop, p2i_en, 1);
-		vtotal = vtotal + 1;
+		vtotal += vtotal + 1;
 	} else {
 		VOP_CTRL_SET(vop, dsp_interlace, 0);
 		VOP_CTRL_SET(vop, p2i_en, 0);