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ARM: tegra: enable LCD panel on Seaboard

PATCH Superseded Stephen Warren 2 participants 4 messages Jan 7, 2014 – Jan 8, 2014

Subsystems (2)
Device tree bindings Tegra architecture support

v1 of 2 Superseded Latest is v2 →

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Stephen Warren

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#0 lore raw

PATCH 1/2 ARM: tegra: enable LCD panel on Seaboard

From: Stephen Warren <[email protected]>

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

Signed-off-by Stephen Warren <[email protected]>
---
 arch/arm/boot/dts/tegra20-seaboard.dts | 55 +++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)
arch/arm/boot/dts/tegra20-seaboard.dts +54 -1
index a11b6e7b4759..f4443c1eaba7 100644
@@ -17,6 +17,14 @@
 	};
 
 	host1x at 50000000 {
+		dc at 54200000 {
+			rgb {
+				status = "okay";
+
+				nvidia,panel = <&panel>;
+			};
+		};
+
 		hdmi at 54280000 {
 			status = "okay";
 

@@ -312,6 +320,10 @@
 		status = "okay";
 	};
 
+	pwm: pwm at 7000a000 {
+		status = "okay";
+	};
+
 	i2c at 7000c000 {
 		status = "okay";
 		clock-frequency = <400000>;

@@ -369,7 +381,7 @@
 			#size-cells = <0>;
 		};
 
-		i2c at 1 {
+		lvds_ddc: i2c at 1 {
 			reg = <1>;
 			#address-cells = <1>;
 			#size-cells = <0>;

@@ -762,6 +774,17 @@
 		non-removable;
 	};
 
+	backlight: backlight {
+		compatible = "pwm-backlight";
+
+		enable-gpios = <&gpio TEGRA_GPIO(D, 4) GPIO_ACTIVE_HIGH>;
+		power-supply = <&vdd_bl_reg>;
+		pwms = <&pwm 0 5000000>;
+
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <6>;
+	};
+
 	clocks {
 		compatible = "simple-bus";
 		#address-cells = <1>;

@@ -795,6 +818,16 @@
 		};
 	};
 
+	panel: panel {
+		compatible = "chungwa,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>;

@@ -839,6 +872,26 @@
 			regulator-always-on;
 			regulator-boot-on;
 		};
+
+		vdd_pnl_reg: regulator at 4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "vdd_pnl";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			gpio = <&gpio TEGRA_GPIO(C, 6) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+
+		vdd_bl_reg: regulator at 5 {
+			compatible = "regulator-fixed";
+			reg = <5>;
+			regulator-name = "vdd_bl";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			gpio = <&gpio TEGRA_GPIO(W, 0) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
 	};
 
 	sound {
Signature · 1 line
1.8.1.5
author
#1 lore raw

PATCH 2/2 ARM: tegra: enable LCD panel on Ventana

From: Stephen Warren <[email protected]>

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

Signed-off-by Stephen Warren <[email protected]>
---
 arch/arm/boot/dts/tegra20-ventana.dts | 39 ++++++++++++++++++++++++++++++++---
 1 file changed, 36 insertions(+), 3 deletions(-)
arch/arm/boot/dts/tegra20-ventana.dts +36 -3
index 571d12e6ac2d..93cbb9928e1d 100644
@@ -17,6 +17,14 @@
 	};
 
 	host1x at 50000000 {
+		dc at 54200000 {
+			rgb {
+				status = "okay";
+
+				nvidia,panel = <&panel>;
+			};
+		};
+
 		hdmi at 54280000 {
 			status = "okay";
 

@@ -309,6 +317,10 @@
 		status = "okay";
 	};
 
+	pwm: pwm at 7000a000 {
+		status = "okay";
+	};
+
 	i2c at 7000c000 {
 		status = "okay";
 		clock-frequency = <400000>;

@@ -359,7 +371,7 @@
 			#size-cells = <0>;
 		};
 
-		i2c at 1 {
+		lvds_ddc: i2c at 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 0 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 = "chungwa,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 at 3 {
+		vdd_pnl_reg: regulator at 3 {
 			compatible = "regulator-fixed";
 			reg = <3>;
 			regulator-name = "vdd_pnl";

@@ -624,7 +657,7 @@
 			enable-active-high;
 		};
 
-		regulator at 4 {
+		vdd_bl_reg: regulator at 4 {
 			compatible = "regulator-fixed";
 			reg = <4>;
 			regulator-name = "vdd_bl";
Signature · 1 line
1.8.1.5
#2 lore raw

PATCH 2/2 ARM: tegra: enable LCD panel on Ventana

On Tue, Jan 07, 2014 at 04:47:17PM -0700, Stephen Warren wrote:
[...]

arch/arm/boot/dts/tegra20-ventana.dts line 608

Quoted 6 lines
arch/arm/boot/dts/tegra20-ventana.dts +2 -0
@@ -581,6 +604,16 @@
 		};
 	};
 
+	panel: panel {
+		compatible = "chungwa,claa101wa01a", "simple-panel";

This also needs "chunghwa" rather than "chungwa". With that fixed:

Reviewed-by Thierry Reding <[email protected]>

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#3 lore raw

PATCH 1/2 ARM: tegra: enable LCD panel on Seaboard

In reply to Stephen Warren
Quoted 9 lines · Stephen Warren

From: Stephen Warren <[email protected]>

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

Signed-off-by Stephen Warren <[email protected]>
---
 arch/arm/boot/dts/tegra20-seaboard.dts | 55 +++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

I think this patch needs s/chungwa/chunghwa/, but other than that it looks good to me:

Reviewed-by Thierry Reding <[email protected]>

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