From 36cb2472e4c1fffafe61f759908f772c555ef636 Mon Sep 17 00:00:00 2001
From: hjc <hjc@rock-chips.com>
Date: Wed, 3 Jun 2015 11:38:39 +0800
Subject: [PATCH] rk fb: if win close we have to set 4 area state to 0,
 otherwise will lead to pagefault

Signed-off-by: hjc <hjc@rock-chips.com>
---
 drivers/video/rockchip/rk_fb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 307c95349cd3..a9ee1f0c3853 100755
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -1841,6 +1841,8 @@ static void rk_fb_update_reg(struct rk_lcdc_driver *dev_drv,
 		} else {
 			win->z_order = -1;
 			win->state = 0;
+			for (j = 0; j < 4; j++)
+				win->area[j].state = 0;
 #if defined(CONFIG_ROCKCHIP_IOMMU)
 			if (dev_drv->iommu_enabled) {
 				for (j = 0; j < 4; j++) {
-- 
2.34.1