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	lte430_pins: lte430-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		>;
63	};
64
65	ads7846_pins: ads7846-pins {
66		pinctrl-single,pins = <
67			OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT_PULLDOWN | MUX_MODE4)	/* csi2_dx1.gpio_114 */
68		>;
69	};
70};
71
72/* Needed to power the DPI pins */
73&vpll2 {
74	regulator-always-on;
75};
76
77&dss {
78	status = "okay";
79
80	pinctrl-names = "default";
81	pinctrl-0 = <&dss_dpi_pins>;
82
83	port {
84		dpi_out: endpoint {
85			remote-endpoint = <&lcd_in>;
86			data-lines = <24>;
87		};
88	};
89};
90
91/ {
92	aliases {
93		display0 = &lcd0;
94	};
95
96	lcd0: display {
97		compatible = "samsung,lte430wq-f0c", "panel-dpi";
98		label = "lcd43";
99
100		pinctrl-names = "default";
101		pinctrl-0 = <&lte430_pins>;
102		enable-gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>;		/* gpio_144 */
103
104		port {
105			lcd_in: endpoint {
106				remote-endpoint = <&dpi_out>;
107			};
108		};
109
110		panel-timing {
111			clock-frequency = <9200000>;
112			hactive = <480>;
113			vactive = <272>;
114			hfront-porch = <8>;
115			hback-porch = <4>;
116			hsync-len = <41>;
117			vback-porch = <2>;
118			vfront-porch = <4>;
119			vsync-len = <10>;
120
121			hsync-active = <0>;
122			vsync-active = <0>;
123			de-active = <1>;
124			pixelclk-active = <1>;
125		};
126	};
127
128	ads7846reg: ads7846-reg {
129		compatible = "regulator-fixed";
130		regulator-name = "ads7846-reg";
131		regulator-min-microvolt = <3300000>;
132		regulator-max-microvolt = <3300000>;
133	};
134
135	backlight {
136		compatible = "gpio-backlight";
137
138		pinctrl-names = "default";
139		pinctrl-0 = <&backlight_pins>;
140		gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>;		/* gpio_145 */
141
142		default-on;
143	};
144};
145
146&mcspi1 {
147	pinctrl-names = "default";
148	pinctrl-0 = <&mcspi1_pins>;
149
150	/* touch controller */
151	ads7846@0 {
152		pinctrl-names = "default";
153		pinctrl-0 = <&ads7846_pins>;
154
155		compatible = "ti,ads7846";
156		vcc-supply = <&ads7846reg>;
157
158		reg = <0>;				/* CS0 */
159		spi-max-frequency = <1500000>;
160
161		interrupt-parent = <&gpio4>;
162		interrupts = <18 0>;			/* gpio_114 */
163		pendown-gpio = <&gpio4 18 GPIO_ACTIVE_LOW>;
164
165		ti,x-min = /bits/ 16 <0x0>;
166		ti,x-max = /bits/ 16 <0x0fff>;
167		ti,y-min = /bits/ 16 <0x0>;
168		ti,y-max = /bits/ 16 <0x0fff>;
169		ti,x-plate-ohms = /bits/ 16 <180>;
170		ti,pressure-max = /bits/ 16 <255>;
171
172		wakeup-source;
173	};
174};
175
176