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Commit 8ae02449 authored by Adam Ford's avatar Adam Ford Committed by Sekhar Nori
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ARM: dts: da850-evm: Enable LCD and backlight 



When using the board files the LCD works, but not with the DT.
This adds enables the original da850-evm to work with the same
LCD in device tree mode.

The EVM has a gpio for backlight regulator and a PWM for dimming
the backlight.  The LCD and the vpif display pins are mutually
exclusive, so if using the LCD, do not load the vpif driver.

Signed-off-by: default avatarAdam Ford <aford173@gmail.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
parent 4be9e673

arch/arm/boot/dts/da850-evm.dts

+82 −1
Original line number Diff line number Diff line
@@ -27,6 +27,65 @@ 
		spi0 = &spi1;

	};



	backlight: backlight-pwm {

		pinctrl-names = "default";

		pinctrl-0 = <&ecap2_pins>;

		power-supply = <&backlight_lcd>;

		compatible = "pwm-backlight";

		/*

		 * The PWM here corresponds to production hardware. The

		 * schematic needs to be 1015171 (15 March 2010), Rev A

		 * or newer.

		 */

		pwms = <&ecap2 0 50000 0>;

		brightness-levels = <0 10 20 30 40 50 60 70 80 90 99>;

		default-brightness-level = <7>;

	};



	panel {

		compatible = "ti,tilcdc,panel";

		pinctrl-names = "default";

		pinctrl-0 = <&lcd_pins>;

		/*

		 * The vpif and the LCD are mutually exclusive.

		 * To enable VPIF, change the status below to 'disabled' then

		 * then change the status of the vpif below to 'okay'

		 */

		status = "okay";

		enable-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>; /* lcd_panel_pwr */



		panel-info {

			ac-bias		= <255>;

			ac-bias-intrpt	= <0>;

			dma-burst-sz	= <16>;

			bpp		= <16>;

			fdd		= <0x80>;

			sync-edge	= <0>;

			sync-ctrl	= <1>;

			raster-order	= <0>;

			fifo-th		= <0>;

		};



		display-timings {

			native-mode = <&timing0>;

			timing0: 480x272 {

				clock-frequency = <9000000>;

				hactive = <480>;

				vactive = <272>;

				hfront-porch = <3>;

				hback-porch = <2>;

				hsync-len = <42>;

				vback-porch = <3>;

				vfront-porch = <4>;

				vsync-len = <11>;

				hsync-active = <0>;

				vsync-active = <0>;

				de-active = <1>;

				pixelclk-active = <1>;

			};

		};

	};



	vbat: fixedregulator0 {

		compatible = "regulator-fixed";

		regulator-name = "vbat";
@@ -35,6 +94,15 @@ 
		regulator-boot-on;

	};



	backlight_lcd: backlight-regulator {

		compatible = "regulator-fixed";

		regulator-name = "lcd_backlight_pwr";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		gpio = <&gpio 47 GPIO_ACTIVE_HIGH>; /* lcd_backlight_pwr */

		enable-active-high;

	};



	sound {

		compatible = "simple-audio-card";

		simple-audio-card,name = "DA850/OMAP-L138 EVM";
@@ -63,6 +131,10 @@ 
	};

};



&ecap2 {

	status = "okay";

};



&pmx_core {

	status = "okay";
@@ -113,6 +185,10 @@ 
	status = "okay";

};



&lcdc {

	status = "okay";

};



&i2c0 {

	status = "okay";

	clock-frequency = <100000>;
@@ -340,5 +416,10 @@ 
&vpif {

	pinctrl-names = "default";

	pinctrl-0 = <&vpif_capture_pins>, <&vpif_display_pins>;

	status = "okay";

	/*

	 * The vpif and the LCD are mutually exclusive.

	 * To enable VPIF, disable the ti,tilcdc,panel then

	 * change the status below to 'okay'

	 */

	status = "disabled";

};