From: yxj <yxj@rock-chips.com>
Date: Sat, 1 Dec 2012 07:14:35 +0000 (+0800)
Subject: rk hdmi sysfs: only plug in hdmi use screen scale
X-Git-Tag: firefly_0821_release~8122
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f48dd4d935c269371c12976ccbe4a25e7f76149a;p=firefly-linux-kernel-4.4.55.git

rk hdmi sysfs: only plug in hdmi use screen scale
---

diff --git a/drivers/video/rockchip/hdmi/rk_hdmi_sysfs.c b/drivers/video/rockchip/hdmi/rk_hdmi_sysfs.c
index ed0d2e09762c..e0e6bf4b67ff 100755
--- a/drivers/video/rockchip/hdmi/rk_hdmi_sysfs.c
+++ b/drivers/video/rockchip/hdmi/rk_hdmi_sysfs.c
@@ -110,7 +110,10 @@ static int hdmi_set_scale(struct rk_display_device *device, int direction, int v
 	
 	if(!hdmi || value < 0 || value > 100)
 		return -1;
-			
+
+	if(!hdmi->hotplug)
+               return 0;
+		
 	if(direction == DISPLAY_SCALE_X)
 		hdmi->xscale = value;
 	else if(direction == DISPLAY_SCALE_Y)