ARM: tegra: enable LCD panel on Ventana

Ventana uses a CLAA101WA01A LCD panel. Enable the relevant display
controller, backlight, and regulators.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 571d12e..ca8484c 100644 (file)
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -17,6 +17,14 @@
        };
 
        host1x@50000000 {
+               dc@54200000 {
+                       rgb {
+                               status = "okay";
+
+                               nvidia,panel = <&panel>;
+                       };
+               };
+
                hdmi@54280000 {
                        status = "okay";
 
@@ -309,6 +317,10 @@
                status = "okay";
        };
 
+       pwm: pwm@7000a000 {
+               status = "okay";
+       };
+
        i2c@7000c000 {
                status = "okay";
                clock-frequency = <400000>;
@@ -359,7 +371,7 @@
                        #size-cells = <0>;
                };
 
-               i2c@1 {
+               lvds_ddc: i2c@1 {
                        reg = <1>;
                        #address-cells = <1>;
                        #size-cells = <0>;
@@ -557,6 +569,17 @@
                non-removable;
        };
 
+       backlight: backlight {
+               compatible = "pwm-backlight";
+
+               enable-gpios = <&gpio TEGRA_GPIO(D, 4) GPIO_ACTIVE_HIGH>;
+               power-supply = <&vdd_bl_reg>;
+               pwms = <&pwm 2 5000000>;
+
+               brightness-levels = <0 4 8 16 32 64 128 255>;
+               default-brightness-level = <6>;
+       };
+
        clocks {
                compatible = "simple-bus";
                #address-cells = <1>;
@@ -581,6 +604,16 @@
                };
        };
 
+       panel: panel {
+               compatible = "chunghwa,claa101wa01a", "simple-panel";
+
+               power-supply = <&vdd_pnl_reg>;
+               enable-gpios = <&gpio TEGRA_GPIO(B, 2) GPIO_ACTIVE_HIGH>;
+
+               backlight = <&backlight>;
+               ddc-i2c-bus = <&lvds_ddc>;
+       };
+
        regulators {
                compatible = "simple-bus";
                #address-cells = <1>;
@@ -614,7 +647,7 @@
                        enable-active-high;
                };
 
-               regulator@3 {
+               vdd_pnl_reg: regulator@3 {
                        compatible = "regulator-fixed";
                        reg = <3>;
                        regulator-name = "vdd_pnl";
@@ -624,7 +657,7 @@
                        enable-active-high;
                };
 
-               regulator@4 {
+               vdd_bl_reg: regulator@4 {
                        compatible = "regulator-fixed";
                        reg = <4>;
                        regulator-name = "vdd_bl";