ARM: tegra: paz00: Add LVDS support to device tree

Add backlight and panel nodes for the PAZ00 TFT LCD panel.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

1 files changed, 45 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index c7cd8e6802d7..9a39a8001f78 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -17,6 +17,14 @@
         };
 
         host1x@50000000 {
+                dc@54200000 {
+                        rgb {
+                                status = "okay";
+
+                                nvidia,panel = <&panel>;
+                        };
+                };
+
                 hdmi@54280000 {
                         status = "okay";
 
@@ -257,7 +265,11 @@
                 status = "okay";
         };
 
-        i2c@7000c000 {
+        pwm: pwm@7000a000 {
+                status = "okay";
+        };
+
+        lvds_ddc: i2c@7000c000 {
                 status = "okay";
                 clock-frequency = <400000>;
 
@@ -475,6 +487,18 @@
                 non-removable;
         };
 
+        backlight: backlight {
+                compatible = "pwm-backlight";
+
+                enable-gpios = <&gpio TEGRA_GPIO(U, 4) GPIO_ACTIVE_HIGH>;
+                pwms = <&pwm 0 5000000>;
+
+                brightness-levels = <0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 255>;
+                default-brightness-level = <10>;
+
+                backlight-boot-off;
+        };
+
         clocks {
                 compatible = "simple-bus";
                 #address-cells = <1>;
@@ -509,6 +533,16 @@
                 };
         };
 
+        panel: panel {
+                compatible = "samsung,ltn101nt05", "simple-panel";
+
+                ddc-i2c-bus = <&lvds_ddc>;
+                power-supply = <&vdd_pnl_reg>;
+                enable-gpios = <&gpio TEGRA_GPIO(M, 6) GPIO_ACTIVE_HIGH>;
+
+                backlight = <&backlight>;
+        };
+
         regulators {
                 compatible = "simple-bus";
                 #address-cells = <1>;
@@ -522,6 +556,16 @@
                         regulator-max-microvolt = <5000000>;
                         regulator-always-on;
                 };
+
+                vdd_pnl_reg: regulator@1 {
+                        compatible = "regulator-fixed";
+                        reg = <1>;
+                        regulator-name = "+3VS,vdd_pnl";
+                        regulator-min-microvolt = <3300000>;
+                        regulator-max-microvolt = <3300000>;
+                        gpio = <&gpio TEGRA_GPIO(A, 4) GPIO_ACTIVE_HIGH>;
+                        enable-active-high;
+                };
         };
 
         sound {