From: xuhuicong <xhc@rock-chips.com>
Date: Thu, 1 Aug 2013 14:00:40 +0000 (+0800)
Subject: rk3028a hdmi: add pre-driver and main-driver strength to make signal more good
X-Git-Tag: firefly_0821_release~6785
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ebc870ae75081446da6ecf4d96221e9b18e50a6c;p=firefly-linux-kernel-4.4.55.git

rk3028a hdmi: add pre-driver and main-driver strength to make signal more good
---

diff --git a/drivers/video/rockchip/hdmi/chips/rk616/rk616_hdmi_hw.c b/drivers/video/rockchip/hdmi/chips/rk616/rk616_hdmi_hw.c
index 76db26bcd074..84f8333d969d 100755
--- a/drivers/video/rockchip/hdmi/chips/rk616/rk616_hdmi_hw.c
+++ b/drivers/video/rockchip/hdmi/chips/rk616/rk616_hdmi_hw.c
@@ -100,8 +100,14 @@ static void rk616_hdmi_set_pwr_mode(int mode)
      case NORMAL:
 	     hdmi_dbg(hdmi->dev,"%s change pwr_mode NORMALpwr_mode = %d, mode = %d\n",__FUNCTION__,hdmi->pwr_mode,mode);
 	   	rk616_hdmi_sys_power_down();
-		hdmi_writel(PHY_DRIVER,0xaa);
-		hdmi_writel(PHY_PRE_EMPHASIS,0x0f);
+                if (hdmi->set_vif) {
+        		hdmi_writel(PHY_DRIVER,0xaa);
+	        	hdmi_writel(PHY_PRE_EMPHASIS,0x0f);
+                } else {
+                        /* 3026 */
+        		hdmi_writel(PHY_DRIVER,0xbb);
+	        	hdmi_writel(PHY_PRE_EMPHASIS,0x4f);
+                }
 		hdmi_writel(PHY_SYS_CTL,0x2d);
 		hdmi_writel(PHY_SYS_CTL,0x2c);
 		hdmi_writel(PHY_SYS_CTL,0x28);