video: rockchip: vop: 3399: improve the vop bandwidth issue

Change-Id: Ie2701dfe763de54dd0bfba5d24de05c77f1caa31
Signed-off-by: Huang Jiachai <hjc@rock-chips.com>

diff --git a/drivers/video/rockchip/lcdc/rk322x_lcdc.c b/drivers/video/rockchip/lcdc/rk322x_lcdc.c
index 386708e53f45a333087e0ecc6ce4a25bc23ddda8..3f647251b07cf8479ece9aec701ae304e0faf6c3 100644 (file)
--- a/drivers/video/rockchip/lcdc/rk322x_lcdc.c
+++ b/drivers/video/rockchip/lcdc/rk322x_lcdc.c
@@ -1808,6 +1808,10 @@ static int vop_config_timing(struct rk_lcdc_driver *dev_drv)
                vop_msk_reg(vop_dev, LINE_FLAG, val);
        }
        vop_post_cfg(dev_drv);
+       if (x_res <= VOP_INPUT_MAX_WIDTH / 2)
+               vop_msk_reg(vop_dev, SYS_CTRL, V_POST_LB_MODE(1));
+       else
+               vop_msk_reg(vop_dev, SYS_CTRL, V_POST_LB_MODE(0));
 
        return 0;
 }