arch/arm/boot/dts/omap3-overo-common-lcd35.dtsi

   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: pinmux_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: pinmux_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: pinmux_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: pinmux_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: pinmux_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_HIGH>;
 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 };