0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003 * Copyright (C) 2014 Florian Vaussard, EPFL Mobots group
0004 */
0005
0006 /*
0007 * 4.3'' LCD panel output for some Gumstix Overo boards (Gallop43, Chestnut43)
0008 */
0009
0010 &omap3_pmx_core {
0011 dss_dpi_pins: pinmux_dss_dpi_pins {
0012 pinctrl-single,pins = <
0013 OMAP3_CORE1_IOPAD(0x20d4, PIN_OUTPUT | MUX_MODE0) /* dss_pclk.dss_pclk */
0014 OMAP3_CORE1_IOPAD(0x20d6, PIN_OUTPUT | MUX_MODE0) /* dss_hsync.dss_hsync */
0015 OMAP3_CORE1_IOPAD(0x20d8, PIN_OUTPUT | MUX_MODE0) /* dss_vsync.dss_vsync */
0016 OMAP3_CORE1_IOPAD(0x20da, PIN_OUTPUT | MUX_MODE0) /* dss_acbias.dss_acbias */
0017 OMAP3_CORE1_IOPAD(0x20dc, PIN_OUTPUT | MUX_MODE0) /* dss_data0.dss_data0 */
0018 OMAP3_CORE1_IOPAD(0x20de, PIN_OUTPUT | MUX_MODE0) /* dss_data1.dss_data1 */
0019 OMAP3_CORE1_IOPAD(0x20e0, PIN_OUTPUT | MUX_MODE0) /* dss_data2.dss_data2 */
0020 OMAP3_CORE1_IOPAD(0x20e2, PIN_OUTPUT | MUX_MODE0) /* dss_data3.dss_data3 */
0021 OMAP3_CORE1_IOPAD(0x20e4, PIN_OUTPUT | MUX_MODE0) /* dss_data4.dss_data4 */
0022 OMAP3_CORE1_IOPAD(0x20e6, PIN_OUTPUT | MUX_MODE0) /* dss_data5.dss_data5 */
0023 OMAP3_CORE1_IOPAD(0x20e8, PIN_OUTPUT | MUX_MODE0) /* dss_data6.dss_data6 */
0024 OMAP3_CORE1_IOPAD(0x20ea, PIN_OUTPUT | MUX_MODE0) /* dss_data7.dss_data7 */
0025 OMAP3_CORE1_IOPAD(0x20ec, PIN_OUTPUT | MUX_MODE0) /* dss_data8.dss_data8 */
0026 OMAP3_CORE1_IOPAD(0x20ee, PIN_OUTPUT | MUX_MODE0) /* dss_data9.dss_data9 */
0027 OMAP3_CORE1_IOPAD(0x20f0, PIN_OUTPUT | MUX_MODE0) /* dss_data10.dss_data10 */
0028 OMAP3_CORE1_IOPAD(0x20f2, PIN_OUTPUT | MUX_MODE0) /* dss_data11.dss_data11 */
0029 OMAP3_CORE1_IOPAD(0x20f4, PIN_OUTPUT | MUX_MODE0) /* dss_data12.dss_data12 */
0030 OMAP3_CORE1_IOPAD(0x20f6, PIN_OUTPUT | MUX_MODE0) /* dss_data13.dss_data13 */
0031 OMAP3_CORE1_IOPAD(0x20f8, PIN_OUTPUT | MUX_MODE0) /* dss_data14.dss_data14 */
0032 OMAP3_CORE1_IOPAD(0x20fa, PIN_OUTPUT | MUX_MODE0) /* dss_data15.dss_data15 */
0033 OMAP3_CORE1_IOPAD(0x20fc, PIN_OUTPUT | MUX_MODE0) /* dss_data16.dss_data16 */
0034 OMAP3_CORE1_IOPAD(0x20fe, PIN_OUTPUT | MUX_MODE0) /* dss_data17.dss_data17 */
0035 OMAP3_CORE1_IOPAD(0x2100, PIN_OUTPUT | MUX_MODE0) /* dss_data18.dss_data18 */
0036 OMAP3_CORE1_IOPAD(0x2102, PIN_OUTPUT | MUX_MODE0) /* dss_data19.dss_data19 */
0037 OMAP3_CORE1_IOPAD(0x2104, PIN_OUTPUT | MUX_MODE0) /* dss_data20.dss_data20 */
0038 OMAP3_CORE1_IOPAD(0x2106, PIN_OUTPUT | MUX_MODE0) /* dss_data21.dss_data21 */
0039 OMAP3_CORE1_IOPAD(0x2108, PIN_OUTPUT | MUX_MODE0) /* dss_data22.dss_data22 */
0040 OMAP3_CORE1_IOPAD(0x210a, PIN_OUTPUT | MUX_MODE0) /* dss_data23.dss_data23 */
0041 >;
0042 };
0043
0044 lb035_pins: pinmux_lb035_pins {
0045 pinctrl-single,pins = <
0046 OMAP3_CORE1_IOPAD(0x2174, PIN_OUTPUT | MUX_MODE4) /* uart2_cts.gpio_144 */
0047 >;
0048 };
0049
0050 backlight_pins: pinmux_backlight_pins {
0051 pinctrl-single,pins = <
0052 OMAP3_CORE1_IOPAD(0x2176, PIN_OUTPUT | MUX_MODE4) /* uart2_rts.gpio_145 */
0053 >;
0054 };
0055
0056 mcspi1_pins: pinmux_mcspi1_pins {
0057 pinctrl-single,pins = <
0058 OMAP3_CORE1_IOPAD(0x21c8, PIN_INPUT | MUX_MODE0) /* mcspi1_clk.mcspi1_clk */
0059 OMAP3_CORE1_IOPAD(0x21ca, PIN_INPUT | MUX_MODE0) /* mcspi1_simo.mcspi1_simo */
0060 OMAP3_CORE1_IOPAD(0x21cc, PIN_INPUT | MUX_MODE0) /* mcspi1_somi.mcspi1_somi */
0061 OMAP3_CORE1_IOPAD(0x21ce, PIN_INPUT | MUX_MODE0) /* mcspi1_cs0.mcspi1_cs0 */
0062 OMAP3_CORE1_IOPAD(0x21d0, PIN_INPUT | MUX_MODE0) /* mcspi1_cs1.mcspi1_cs1 */
0063 >;
0064 };
0065
0066 ads7846_pins: pinmux_ads7846_pins {
0067 pinctrl-single,pins = <
0068 OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT_PULLDOWN | MUX_MODE4) /* csi2_dx1.gpio_114 */
0069 >;
0070 };
0071 };
0072
0073 /* Needed to power the DPI pins */
0074 &vpll2 {
0075 regulator-always-on;
0076 };
0077
0078 &dss {
0079 status = "okay";
0080
0081 pinctrl-names = "default";
0082 pinctrl-0 = <&dss_dpi_pins>;
0083
0084 port {
0085 dpi_out: endpoint {
0086 remote-endpoint = <&lcd_in>;
0087 data-lines = <24>;
0088 };
0089 };
0090 };
0091
0092 / {
0093 aliases {
0094 display0 = &lcd0;
0095 };
0096
0097 ads7846reg: ads7846-reg {
0098 compatible = "regulator-fixed";
0099 regulator-name = "ads7846-reg";
0100 regulator-min-microvolt = <3300000>;
0101 regulator-max-microvolt = <3300000>;
0102 };
0103
0104 backlight {
0105 compatible = "gpio-backlight";
0106
0107 pinctrl-names = "default";
0108 pinctrl-0 = <&backlight_pins>;
0109 gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>; /* gpio_145 */
0110
0111 default-on;
0112 };
0113 };
0114
0115 &mcspi1 {
0116 pinctrl-names = "default";
0117 pinctrl-0 = <&mcspi1_pins>;
0118
0119 lcd0: display@1 {
0120 compatible = "lgphilips,lb035q02";
0121 label = "lcd35";
0122
0123 reg = <1>; /* CS1 */
0124 spi-max-frequency = <500000>;
0125 spi-cpol;
0126 spi-cpha;
0127
0128 pinctrl-names = "default";
0129 pinctrl-0 = <&lb035_pins>;
0130 enable-gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>; /* gpio_144 */
0131
0132 port {
0133 lcd_in: endpoint {
0134 remote-endpoint = <&dpi_out>;
0135 };
0136 };
0137 };
0138
0139 /* touch controller */
0140 ads7846@0 {
0141 pinctrl-names = "default";
0142 pinctrl-0 = <&ads7846_pins>;
0143
0144 compatible = "ti,ads7846";
0145 vcc-supply = <&ads7846reg>;
0146
0147 reg = <0>; /* CS0 */
0148 spi-max-frequency = <1500000>;
0149
0150 interrupt-parent = <&gpio4>;
0151 interrupts = <18 0>; /* gpio_114 */
0152 pendown-gpio = <&gpio4 18 GPIO_ACTIVE_HIGH>;
0153
0154 ti,x-min = /bits/ 16 <0x0>;
0155 ti,x-max = /bits/ 16 <0x0fff>;
0156 ti,y-min = /bits/ 16 <0x0>;
0157 ti,y-max = /bits/ 16 <0x0fff>;
0158 ti,x-plate-ohms = /bits/ 16 <180>;
0159 ti,pressure-max = /bits/ 16 <255>;
0160
0161 wakeup-source;
0162 };
0163 };
