1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2014 Florian Vaussard, EPFL Mobots group
4 */
5
6/*
7 * 4.3'' LCD panel output for some Gumstix Overo boards (Gallop43, Chestnut43)
8 */
9
10&omap3_pmx_core {
11	dss_dpi_pins: dss-dpi-pins {
12		pinctrl-single,pins = <
13			OMAP3_CORE1_IOPAD(0x20d4, PIN_OUTPUT | MUX_MODE0)	/* dss_pclk.dss_pclk */
14			OMAP3_CORE1_IOPAD(0x20d6, PIN_OUTPUT | MUX_MODE0)	/* dss_hsync.dss_hsync */
15			OMAP3_CORE1_IOPAD(0x20d8, PIN_OUTPUT | MUX_MODE0)	/* dss_vsync.dss_vsync */
16			OMAP3_CORE1_IOPAD(0x20da, PIN_OUTPUT | MUX_MODE0)	/* dss_acbias.dss_acbias */
17			OMAP3_CORE1_IOPAD(0x20dc, PIN_OUTPUT | MUX_MODE0)	/* dss_data0.dss_data0 */
18			OMAP3_CORE1_IOPAD(0x20de, PIN_OUTPUT | MUX_MODE0)	/* dss_data1.dss_data1 */
19			OMAP3_CORE1_IOPAD(0x20e0, PIN_OUTPUT | MUX_MODE0)	/* dss_data2.dss_data2 */
20			OMAP3_CORE1_IOPAD(0x20e2, PIN_OUTPUT | MUX_MODE0)	/* dss_data3.dss_data3 */
21			OMAP3_CORE1_IOPAD(0x20e4, PIN_OUTPUT | MUX_MODE0)	/* dss_data4.dss_data4 */
22			OMAP3_CORE1_IOPAD(0x20e6, PIN_OUTPUT | MUX_MODE0)	/* dss_data5.dss_data5 */
23			OMAP3_CORE1_IOPAD(0x20e8, PIN_OUTPUT | MUX_MODE0)	/* dss_data6.dss_data6 */
24			OMAP3_CORE1_IOPAD(0x20ea, PIN_OUTPUT | MUX_MODE0)	/* dss_data7.dss_data7 */
25			OMAP3_CORE1_IOPAD(0x20ec, PIN_OUTPUT | MUX_MODE0)	/* dss_data8.dss_data8 */
26			OMAP3_CORE1_IOPAD(0x20ee, PIN_OUTPUT | MUX_MODE0)	/* dss_data9.dss_data9 */
27			OMAP3_CORE1_IOPAD(0x20f0, PIN_OUTPUT | MUX_MODE0)	/* dss_data10.dss_data10 */
28			OMAP3_CORE1_IOPAD(0x20f2, PIN_OUTPUT | MUX_MODE0)	/* dss_data11.dss_data11 */
29			OMAP3_CORE1_IOPAD(0x20f4, PIN_OUTPUT | MUX_MODE0)	/* dss_data12.dss_data12 */
30			OMAP3_CORE1_IOPAD(0x20f6, PIN_OUTPUT | MUX_MODE0)	/* dss_data13.dss_data13 */
31			OMAP3_CORE1_IOPAD(0x20f8, PIN_OUTPUT | MUX_MODE0)	/* dss_data14.dss_data14 */
32			OMAP3_CORE1_IOPAD(0x20fa, PIN_OUTPUT | MUX_MODE0)	/* dss_data15.dss_data15 */
33			OMAP3_CORE1_IOPAD(0x20fc, PIN_OUTPUT | MUX_MODE0)	/* dss_data16.dss_data16 */
34			OMAP3_CORE1_IOPAD(0x20fe, PIN_OUTPUT | MUX_MODE0)	/* dss_data17.dss_data17 */
35			OMAP3_CORE1_IOPAD(0x2100, PIN_OUTPUT | MUX_MODE0)	/* dss_data18.dss_data18 */
36			OMAP3_CORE1_IOPAD(0x2102, PIN_OUTPUT | MUX_MODE0)	/* dss_data19.dss_data19 */
37			OMAP3_CORE1_IOPAD(0x2104, PIN_OUTPUT | MUX_MODE0)	/* dss_data20.dss_data20 */
38			OMAP3_CORE1_IOPAD(0x2106, PIN_OUTPUT | MUX_MODE0)	/* dss_data21.dss_data21 */
39			OMAP3_CORE1_IOPAD(0x2108, PIN_OUTPUT | MUX_MODE0)	/* dss_data22.dss_data22 */
40			OMAP3_CORE1_IOPAD(0x210a, PIN_OUTPUT | MUX_MODE0)	/* dss_data23.dss_data23 */
41		>;
42	};
43
44	lb035_pins: lb035-pins {
45		pinctrl-single,pins = <
46			OMAP3_CORE1_IOPAD(0x2174, PIN_OUTPUT | MUX_MODE4)	/* uart2_cts.gpio_144 */
47		>;
48	};
49
50	backlight_pins: backlight-pins {
51		pinctrl-single,pins = <
52			OMAP3_CORE1_IOPAD(0x2176, PIN_OUTPUT | MUX_MODE4)	/* uart2_rts.gpio_145 */
53		>;
54	};
55
56	mcspi1_pins: mcspi1-pins {
57		pinctrl-single,pins = <
58			OMAP3_CORE1_IOPAD(0x21c8, PIN_INPUT | MUX_MODE0)	/* mcspi1_clk.mcspi1_clk */
59			OMAP3_CORE1_IOPAD(0x21ca, PIN_INPUT | MUX_MODE0)	/* mcspi1_simo.mcspi1_simo */
60			OMAP3_CORE1_IOPAD(0x21cc, PIN_INPUT | MUX_MODE0)	/* mcspi1_somi.mcspi1_somi */
61			OMAP3_CORE1_IOPAD(0x21ce, PIN_INPUT | MUX_MODE0)	/* mcspi1_cs0.mcspi1_cs0 */
62			OMAP3_CORE1_IOPAD(0x21d0, PIN_INPUT | MUX_MODE0)	/* mcspi1_cs1.mcspi1_cs1 */
63		>;
64	};
65
66	ads7846_pins: ads7846-pins {
67		pinctrl-single,pins = <
68			OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT_PULLDOWN | MUX_MODE4)	/* csi2_dx1.gpio_114 */
69		>;
70	};
71};
72
73/* Needed to power the DPI pins */
74&vpll2 {
75	regulator-always-on;
76};
77
78&dss {
79	status = "okay";
80
81	pinctrl-names = "default";
82	pinctrl-0 = <&dss_dpi_pins>;
83
84	port {
85		dpi_out: endpoint {
86			remote-endpoint = <&lcd_in>;
87			data-lines = <24>;
88		};
89	};
90};
91
92/ {
93	aliases {
94		display0 = &lcd0;
95	};
96
97	ads7846reg: ads7846-reg {
98		compatible = "regulator-fixed";
99		regulator-name = "ads7846-reg";
100		regulator-min-microvolt = <3300000>;
101		regulator-max-microvolt = <3300000>;
102	};
103
104	backlight {
105		compatible = "gpio-backlight";
106
107		pinctrl-names = "default";
108		pinctrl-0 = <&backlight_pins>;
109		gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>;		/* gpio_145 */
110
111		default-on;
112	};
113};
114
115&mcspi1 {
116	pinctrl-names = "default";
117	pinctrl-0 = <&mcspi1_pins>;
118
119	lcd0: display@1 {
120		compatible = "lgphilips,lb035q02";
121		label = "lcd35";
122
123		reg = <1>;					/* CS1 */
124		spi-max-frequency = <500000>;
125		spi-cpol;
126		spi-cpha;
127
128		pinctrl-names = "default";
129		pinctrl-0 = <&lb035_pins>;
130		enable-gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>;	/* gpio_144 */
131
132		port {
133			lcd_in: endpoint {
134				remote-endpoint = <&dpi_out>;
135			};
136		};
137	};
138
139	/* touch controller */
140	ads7846@0 {
141		pinctrl-names = "default";
142		pinctrl-0 = <&ads7846_pins>;
143
144		compatible = "ti,ads7846";
145		vcc-supply = <&ads7846reg>;
146
147		reg = <0>;				/* CS0 */
148		spi-max-frequency = <1500000>;
149
150		interrupt-parent = <&gpio4>;
151		interrupts = <18 0>;			/* gpio_114 */
152		pendown-gpio = <&gpio4 18 GPIO_ACTIVE_LOW>;
153
154		ti,x-min = /bits/ 16 <0x0>;
155		ti,x-max = /bits/ 16 <0x0fff>;
156		ti,y-min = /bits/ 16 <0x0>;
157		ti,y-max = /bits/ 16 <0x0fff>;
158		ti,x-plate-ohms = /bits/ 16 <180>;
159		ti,pressure-max = /bits/ 16 <255>;
160
161		wakeup-source;
162	};
163};
164