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

   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@1 {
 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                 wakeup-source;
 165         };
 166 };