arch/arm/boot/dts/omap3-overo-common-lcd43.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         lte430_pins: pinmux_lte430_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                 >;
  66         };
  67
  68         ads7846_pins: pinmux_ads7846_pins {
  69                 pinctrl-single,pins = <
  70                         OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT_PULLDOWN | MUX_MODE4)       /* csi2_dx1.gpio_114 */
  71                 >;
  72         };
  73 };
  74
  75 /* Needed to power the DPI pins */
  76 &vpll2 {
  77         regulator-always-on;
  78 };
  79
  80 &dss {
  81         status = "ok";
  82
  83         pinctrl-names = "default";
  84         pinctrl-0 = <&dss_dpi_pins>;
  85
  86         port {
  87                 dpi_out: endpoint {
  88                         remote-endpoint = <&lcd_in>;
  89                         data-lines = <24>;
  90                 };
  91         };
  92 };
  93
  94 / {
  95         aliases {
  96                 display0 = &lcd0;
  97         };
  98
  99         lcd0: display {
 100                 compatible = "samsung,lte430wq-f0c", "panel-dpi";
 101                 label = "lcd43";
 102
 103                 pinctrl-names = "default";
 104                 pinctrl-0 = <&lte430_pins>;
 105                 enable-gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>;            /* gpio_144 */
 106
 107                 port {
 108                         lcd_in: endpoint {
 109                                 remote-endpoint = <&dpi_out>;
 110                         };
 111                 };
 112
 113                 panel-timing {
 114                         clock-frequency = <9200000>;
 115                         hactive = <480>;
 116                         vactive = <272>;
 117                         hfront-porch = <8>;
 118                         hback-porch = <4>;
 119                         hsync-len = <41>;
 120                         vback-porch = <2>;
 121                         vfront-porch = <4>;
 122                         vsync-len = <10>;
 123
 124                         hsync-active = <0>;
 125                         vsync-active = <0>;
 126                         de-active = <1>;
 127                         pixelclk-active = <1>;
 128                 };
 129         };
 130
 131         ads7846reg: ads7846-reg {
 132                 compatible = "regulator-fixed";
 133                 regulator-name = "ads7846-reg";
 134                 regulator-min-microvolt = <3300000>;
 135                 regulator-max-microvolt = <3300000>;
 136         };
 137
 138         backlight {
 139                 compatible = "gpio-backlight";
 140
 141                 pinctrl-names = "default";
 142                 pinctrl-0 = <&backlight_pins>;
 143                 gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>;           /* gpio_145 */
 144
 145                 default-on;
 146         };
 147 };
 148
 149 &mcspi1 {
 150         pinctrl-names = "default";
 151         pinctrl-0 = <&mcspi1_pins>;
 152
 153         /* touch controller */
 154         ads7846@0 {
 155                 pinctrl-names = "default";
 156                 pinctrl-0 = <&ads7846_pins>;
 157
 158                 compatible = "ti,ads7846";
 159                 vcc-supply = <&ads7846reg>;
 160
 161                 reg = <0>;                              /* CS0 */
 162                 spi-max-frequency = <1500000>;
 163
 164                 interrupt-parent = <&gpio4>;
 165                 interrupts = <18 0>;                    /* gpio_114 */
 166                 pendown-gpio = <&gpio4 18 GPIO_ACTIVE_HIGH>;
 167
 168                 ti,x-min = /bits/ 16 <0x0>;
 169                 ti,x-max = /bits/ 16 <0x0fff>;
 170                 ti,y-min = /bits/ 16 <0x0>;
 171                 ti,y-max = /bits/ 16 <0x0fff>;
 172                 ti,x-plate-ohms = /bits/ 16 <180>;
 173                 ti,pressure-max = /bits/ 16 <255>;
 174
 175                 wakeup-source;
 176         };
 177 };
 178