src/arm/ti/omap/omap3-overo-common-lcd43.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: 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