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@0 {
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		linux,wakeup;
165	};
166};
167