1/*
  2 * Copyright (C) 2014 Florian Vaussard, EPFL Mobots group
  3 *
  4 * This program is free software; you can redistribute it and/or modify
  5 * it under the terms of the GNU General Public License version 2 as
  6 * published by the Free Software Foundation.
  7 */
  8
  9/*
 10 * 4.3'' LCD panel output for some Gumstix Overo boards (Gallop43, Chestnut43)
 11 */
 12
 13&omap3_pmx_core {
 14	dss_dpi_pins: pinmux_dss_dpi_pins {
 15		pinctrl-single,pins = <
 16			OMAP3_CORE1_IOPAD(0x20d4, PIN_OUTPUT | MUX_MODE0)	/* dss_pclk.dss_pclk */
 17			OMAP3_CORE1_IOPAD(0x20d6, PIN_OUTPUT | MUX_MODE0)	/* dss_hsync.dss_hsync */
 18			OMAP3_CORE1_IOPAD(0x20d8, PIN_OUTPUT | MUX_MODE0)	/* dss_vsync.dss_vsync */
 19			OMAP3_CORE1_IOPAD(0x20da, PIN_OUTPUT | MUX_MODE0)	/* dss_acbias.dss_acbias */
 20			OMAP3_CORE1_IOPAD(0x20dc, PIN_OUTPUT | MUX_MODE0)	/* dss_data0.dss_data0 */
 21			OMAP3_CORE1_IOPAD(0x20de, PIN_OUTPUT | MUX_MODE0)	/* dss_data1.dss_data1 */
 22			OMAP3_CORE1_IOPAD(0x20e0, PIN_OUTPUT | MUX_MODE0)	/* dss_data2.dss_data2 */
 23			OMAP3_CORE1_IOPAD(0x20e2, PIN_OUTPUT | MUX_MODE0)	/* dss_data3.dss_data3 */
 24			OMAP3_CORE1_IOPAD(0x20e4, PIN_OUTPUT | MUX_MODE0)	/* dss_data4.dss_data4 */
 25			OMAP3_CORE1_IOPAD(0x20e6, PIN_OUTPUT | MUX_MODE0)	/* dss_data5.dss_data5 */
 26			OMAP3_CORE1_IOPAD(0x20e8, PIN_OUTPUT | MUX_MODE0)	/* dss_data6.dss_data6 */
 27			OMAP3_CORE1_IOPAD(0x20ea, PIN_OUTPUT | MUX_MODE0)	/* dss_data7.dss_data7 */
 28			OMAP3_CORE1_IOPAD(0x20ec, PIN_OUTPUT | MUX_MODE0)	/* dss_data8.dss_data8 */
 29			OMAP3_CORE1_IOPAD(0x20ee, PIN_OUTPUT | MUX_MODE0)	/* dss_data9.dss_data9 */
 30			OMAP3_CORE1_IOPAD(0x20f0, PIN_OUTPUT | MUX_MODE0)	/* dss_data10.dss_data10 */
 31			OMAP3_CORE1_IOPAD(0x20f2, PIN_OUTPUT | MUX_MODE0)	/* dss_data11.dss_data11 */
 32			OMAP3_CORE1_IOPAD(0x20f4, PIN_OUTPUT | MUX_MODE0)	/* dss_data12.dss_data12 */
 33			OMAP3_CORE1_IOPAD(0x20f6, PIN_OUTPUT | MUX_MODE0)	/* dss_data13.dss_data13 */
 34			OMAP3_CORE1_IOPAD(0x20f8, PIN_OUTPUT | MUX_MODE0)	/* dss_data14.dss_data14 */
 35			OMAP3_CORE1_IOPAD(0x20fa, PIN_OUTPUT | MUX_MODE0)	/* dss_data15.dss_data15 */
 36			OMAP3_CORE1_IOPAD(0x20fc, PIN_OUTPUT | MUX_MODE0)	/* dss_data16.dss_data16 */
 37			OMAP3_CORE1_IOPAD(0x20fe, PIN_OUTPUT | MUX_MODE0)	/* dss_data17.dss_data17 */
 38			OMAP3_CORE1_IOPAD(0x2100, PIN_OUTPUT | MUX_MODE0)	/* dss_data18.dss_data18 */
 39			OMAP3_CORE1_IOPAD(0x2102, PIN_OUTPUT | MUX_MODE0)	/* dss_data19.dss_data19 */
 40			OMAP3_CORE1_IOPAD(0x2104, PIN_OUTPUT | MUX_MODE0)	/* dss_data20.dss_data20 */
 41			OMAP3_CORE1_IOPAD(0x2106, PIN_OUTPUT | MUX_MODE0)	/* dss_data21.dss_data21 */
 42			OMAP3_CORE1_IOPAD(0x2108, PIN_OUTPUT | MUX_MODE0)	/* dss_data22.dss_data22 */
 43			OMAP3_CORE1_IOPAD(0x210a, PIN_OUTPUT | MUX_MODE0)	/* dss_data23.dss_data23 */
 44		>;
 45	};
 46
 47	lb035_pins: pinmux_lb035_pins {
 48		pinctrl-single,pins = <
 49			OMAP3_CORE1_IOPAD(0x2174, PIN_OUTPUT | MUX_MODE4)	/* uart2_cts.gpio_144 */
 50		>;
 51	};
 52
 53	backlight_pins: pinmux_backlight_pins {
 54		pinctrl-single,pins = <
 55			OMAP3_CORE1_IOPAD(0x2176, PIN_OUTPUT | MUX_MODE4)	/* uart2_rts.gpio_145 */
 56		>;
 57	};
 58
 59	mcspi1_pins: pinmux_mcspi1_pins {
 60		pinctrl-single,pins = <
 61			OMAP3_CORE1_IOPAD(0x21c8, PIN_INPUT | MUX_MODE0)	/* mcspi1_clk.mcspi1_clk */
 62			OMAP3_CORE1_IOPAD(0x21ca, PIN_INPUT | MUX_MODE0)	/* mcspi1_simo.mcspi1_simo */
 63			OMAP3_CORE1_IOPAD(0x21cc, PIN_INPUT | MUX_MODE0)	/* mcspi1_somi.mcspi1_somi */
 64			OMAP3_CORE1_IOPAD(0x21ce, PIN_INPUT | MUX_MODE0)	/* mcspi1_cs0.mcspi1_cs0 */
 65			OMAP3_CORE1_IOPAD(0x21d0, PIN_INPUT | MUX_MODE0)	/* mcspi1_cs1.mcspi1_cs1 */
 66		>;
 67	};
 68
 69	ads7846_pins: pinmux_ads7846_pins {
 70		pinctrl-single,pins = <
 71			OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT_PULLDOWN | MUX_MODE4)	/* csi2_dx1.gpio_114 */
 72		>;
 73	};
 74};
 75
 76/* Needed to power the DPI pins */
 77&vpll2 {
 78	regulator-always-on;
 79};
 80
 81&dss {
 82	status = "ok";
 83
 84	pinctrl-names = "default";
 85	pinctrl-0 = <&dss_dpi_pins>;
 86
 87	port {
 88		dpi_out: endpoint {
 89			remote-endpoint = <&lcd_in>;
 90			data-lines = <24>;
 91		};
 92	};
 93};
 94
 95/ {
 96	aliases {
 97		display0 = &lcd0;
 98	};
 99
100	ads7846reg: ads7846-reg {
101		compatible = "regulator-fixed";
102		regulator-name = "ads7846-reg";
103		regulator-min-microvolt = <3300000>;
104		regulator-max-microvolt = <3300000>;
105	};
106
107	backlight {
108		compatible = "gpio-backlight";
109		
110		pinctrl-names = "default";
111		pinctrl-0 = <&backlight_pins>;
112		gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>;		/* gpio_145 */
113
114		default-on;
115	};
116};
117
118&mcspi1 {
119	pinctrl-names = "default";
120	pinctrl-0 = <&mcspi1_pins>;
121
122	lcd0: display@1 {
123		compatible = "lgphilips,lb035q02";
124		label = "lcd35";
125
126		reg = <1>;					/* CS1 */
127		spi-max-frequency = <500000>;
128		spi-cpol;
129		spi-cpha;
130
131		pinctrl-names = "default";
132		pinctrl-0 = <&lb035_pins>;
133		enable-gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>;	/* gpio_144 */
134
135		port {
136			lcd_in: endpoint {
137				remote-endpoint = <&dpi_out>;
138			};
139		};
140	};
141
142	/* touch controller */
143	ads7846@0 {
144		pinctrl-names = "default";
145		pinctrl-0 = <&ads7846_pins>;
146
147		compatible = "ti,ads7846";
148		vcc-supply = <&ads7846reg>;
149
150		reg = <0>;				/* CS0 */
151		spi-max-frequency = <1500000>;
152
153		interrupt-parent = <&gpio4>;
154		interrupts = <18 0>;			/* gpio_114 */
155		pendown-gpio = <&gpio4 18 GPIO_ACTIVE_HIGH>;
156
157		ti,x-min = /bits/ 16 <0x0>;
158		ti,x-max = /bits/ 16 <0x0fff>;
159		ti,y-min = /bits/ 16 <0x0>;
160		ti,y-max = /bits/ 16 <0x0fff>;
161		ti,x-plate-ohms = /bits/ 16 <180>;
162		ti,pressure-max = /bits/ 16 <255>;
163
164		wakeup-source;
165	};
166};