From: Erik Gilling <konkers@android.com>
Date: Wed, 2 Feb 2011 23:28:32 +0000 (-0800)
Subject: video: tegra: set h/v sync polarity for HDMI
X-Git-Tag: firefly_0821_release~9833^2~44^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=29c4c67185ebab213ce0b54a9292250e0f45a180;p=firefly-linux-kernel-4.4.55.git

video: tegra: set h/v sync polarity for HDMI

Change-Id: I4be0eb963c3779b9313ef94476b1589059d4aa3c
Signed-off-by: Erik Gilling <konkers@android.com>
---

diff --git a/drivers/video/tegra/dc/hdmi.c b/drivers/video/tegra/dc/hdmi.c
index b3eb86220ab4..b214f2c41db3 100644
--- a/drivers/video/tegra/dc/hdmi.c
+++ b/drivers/video/tegra/dc/hdmi.c
@@ -1052,16 +1052,23 @@ static void tegra_dc_hdmi_enable(struct tegra_dc *dc)
 		val = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PWR);
 	} while (val & SOR_PWR_SETTING_NEW_PENDING);
 
-	tegra_hdmi_writel(hdmi,
-			  SOR_STATE_ASY_CRCMODE_COMPLETE |
-			  SOR_STATE_ASY_OWNER_HEAD0 |
-			  SOR_STATE_ASY_SUBOWNER_BOTH |
-			  SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A |
-			  /* TODO: to look at hsync polarity */
-			  SOR_STATE_ASY_HSYNCPOL_POS |
-			  SOR_STATE_ASY_VSYNCPOL_POS |
-			  SOR_STATE_ASY_DEPOL_POS,
-			  HDMI_NV_PDISP_SOR_STATE2);
+	val = SOR_STATE_ASY_CRCMODE_COMPLETE |
+		SOR_STATE_ASY_OWNER_HEAD0 |
+		SOR_STATE_ASY_SUBOWNER_BOTH |
+		SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A |
+		SOR_STATE_ASY_DEPOL_POS;
+
+	if (dc->mode.flags & TEGRA_DC_MODE_FLAG_NEG_H_SYNC)
+		val |= SOR_STATE_ASY_HSYNCPOL_NEG;
+	else
+		val |= SOR_STATE_ASY_HSYNCPOL_POS;
+
+	if (dc->mode.flags & TEGRA_DC_MODE_FLAG_NEG_V_SYNC)
+		val |= SOR_STATE_ASY_VSYNCPOL_NEG;
+	else
+		val |= SOR_STATE_ASY_VSYNCPOL_POS;
+
+	tegra_hdmi_writel(hdmi, val, HDMI_NV_PDISP_SOR_STATE2);
 
 	val = SOR_STATE_ASY_HEAD_OPMODE_AWAKE | SOR_STATE_ASY_ORMODE_NORMAL;
 	tegra_hdmi_writel(hdmi, val, HDMI_NV_PDISP_SOR_STATE1);