ARM: tegra: harmony: enable HDMI port

Enable host1x, and the HDMI output. Harmony also has an optional LCD,
and a VGA output. The former isn't enabled due to potential issues with
having multiple outputs enabled. The latter isn't enabled since the
driver doesn't support VGA yet anyway.

Correct DDC I2C frequency to 100KHz.

Based on work by Thierry Reding for TrimSlice.

Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index a3f2f383c0496e9a3764f19f5610b8cf49efc64c..43eb72af894823d294cbf3ca951b9a3e498088c2 100644 (file)
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -10,6 +10,18 @@
                reg = <0x00000000 0x40000000>;
        };
 
+       host1x {
+               hdmi {
+                       status = "okay";
+
+                       vdd-supply = <&hdmi_vdd_reg>;
+                       pll-supply = <&hdmi_pll_reg>;
+
+                       nvidia,ddc-i2c-bus = <&hdmi_ddc>;
+                       nvidia,hpd-gpio = <&gpio 111 0>; /* PN7 */
+               };
+       };
+
        pinmux {
                pinctrl-names = "default";
                pinctrl-0 = <&state_default>;
@@ -262,9 +274,9 @@
                };
        };
 
-       i2c@7000c400 {
+       hdmi_ddc: i2c@7000c400 {
                status = "okay";
-               clock-frequency = <400000>;
+               clock-frequency = <100000>;
        };
 
        i2c@7000c500 {
@@ -369,13 +381,13 @@
                                        regulator-max-microvolt = <1800000>;
                                };
 
-                               ldo7 {
+                               hdmi_vdd_reg: ldo7 {
                                        regulator-name = "vdd_ldo7,avdd_hdmi";
                                        regulator-min-microvolt = <3300000>;
                                        regulator-max-microvolt = <3300000>;
                                };
 
-                               ldo8 {
+                               hdmi_pll_reg: ldo8 {
                                        regulator-name = "vdd_ldo8,avdd_hdmi_pll";
                                        regulator-min-microvolt = <1800000>;
                                        regulator-max-microvolt = <1800000>;