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 1670584706751d476658d0f835c0ea8a8eb2fa50..7c125decacc0ec6f1f8b863441685d8d891564b0 100644 (file)
--- 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);