From: hjc <hjc@rock-chips.com>
Date: Mon, 9 Mar 2015 10:09:37 +0000 (+0800)
Subject: rk fb: if not want the config effect,set reserved[3] bit[0] 1
X-Git-Tag: firefly_0821_release~4244
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cd757901c540ca8b0774bf15d50b4bd4c6648e01;p=firefly-linux-kernel-4.4.55.git

rk fb: if not want the config effect,set reserved[3] bit[0] 1

Signed-off-by: hjc <hjc@rock-chips.com>
---

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index d9fc6ebdb787..d1d1d3f5e93e 100755
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -1377,7 +1377,9 @@ static int rk_fb_pan_display(struct fb_var_screeninfo *var,
 	if (video_data_to_mirroring)
 		video_data_to_mirroring(info, NULL);
 #endif
-	dev_drv->ops->cfg_done(dev_drv);
+        /*if not want the config effect,set reserved[3] bit[0] 1*/
+        if (likely((var->reserved[3] & 0x1) == 0))
+	        dev_drv->ops->cfg_done(dev_drv);
 
 	return 0;
 }