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pelwellpelwell
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Merge pull request #853 from notro/fbtft-overlay
dts: overlay: add support for various displays
2 parents 0aa653a + 025bcc9 commit 8602a3f

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‎arch/arm/boot/dts/Makefile

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Original file line numberDiff line numberDiff line change
@@ -71,12 +71,16 @@ dtb-$(RPI_DT_OVERLAYS) += hifiberry-dac-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += hifiberry-dacplus-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += hifiberry-digi-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += hy28a-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += pcf2127-rtc-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += pcf8523-rtc-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += rpi-display-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += w1-gpio-overlay.dtb
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dtb-$(RPI_DT_OVERLAYS) += w1-gpio-pullup-overlay.dtb
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dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb

‎arch/arm/boot/dts/hy28a-overlay.dts

Lines changed: 87 additions & 0 deletions
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@@ -0,0 +1,87 @@
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/*
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* Device Tree overlay for HY28A display
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*
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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fragment@0 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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spidev@0{
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status = "disabled";
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};
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spidev@1{
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status = "disabled";
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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hy28a_pins: hy28a_pins {
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brcm,pins = <17 25 18>;
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brcm,function = <0 1 1>; /* in out out */
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};
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};
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};
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fragment@2 {
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target = <&spi0>;
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__overlay__ {
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/* needed to avoid dtc warning */
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#address-cells = <1>;
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#size-cells = <0>;
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hy28a: hy28a@0{
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compatible = "ilitek,ili9320";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&hy28a_pins>;
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spi-max-frequency = <32000000>;
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spi-cpol;
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spi-cpha;
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rotate = <270>;
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bgr;
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fps = <50>;
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buswidth = <8>;
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startbyte = <0x70>;
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reset-gpios = <&gpio 25 0>;
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led-gpios = <&gpio 18 1>;
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debug = <0>;
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};
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hy28a_ts: hy28a-ts@1 {
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compatible = "ti,ads7846";
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reg = <1>;
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spi-max-frequency = <2000000>;
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interrupts = <17 2>; /* high-to-low edge triggered */
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interrupt-parent = <&gpio>;
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pendown-gpio = <&gpio 17 0>;
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ti,x-plate-ohms = /bits/ 16 <100>;
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ti,pressure-max = /bits/ 16 <255>;
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};
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};
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};
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__overrides__ {
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speed = <&hy28a>,"spi-max-frequency:0";
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rotate = <&hy28a>,"rotate:0";
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fps = <&hy28a>,"fps:0";
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debug = <&hy28a>,"debug:0";
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xohms = <&hy28a_ts>,"ti,x-plate-ohms;0";
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resetgpio = <&hy28a>,"reset-gpios:4",
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<&hy28a_pins>, "brcm,pins:1";
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ledgpio = <&hy28a>,"led-gpios:4",
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<&hy28a_pins>, "brcm,pins:2";
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};
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};

‎arch/arm/boot/dts/hy28b-overlay.dts

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/*
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* Device Tree overlay for HY28b display shield by Texy
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*
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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fragment@0 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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spidev@0{
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status = "disabled";
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};
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spidev@1{
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status = "disabled";
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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hy28b_pins: hy28b_pins {
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brcm,pins = <17 25 18>;
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brcm,function = <0 1 1>; /* in out out */
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};
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};
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};
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fragment@2 {
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target = <&spi0>;
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__overlay__ {
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/* needed to avoid dtc warning */
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#address-cells = <1>;
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#size-cells = <0>;
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hy28b: hy28b@0{
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compatible = "ilitek,ili9325";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&hy28b_pins>;
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spi-max-frequency = <48000000>;
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spi-cpol;
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spi-cpha;
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rotate = <270>;
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bgr;
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fps = <50>;
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buswidth = <8>;
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startbyte = <0x70>;
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reset-gpios = <&gpio 25 0>;
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led-gpios = <&gpio 18 1>;
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gamma = "04 1F 4 7 7 0 7 7 6 0\n0F 00 1 7 4 0 0 0 6 7";
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init = <0x10000e7 0x0010
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0x1000000 0x0001
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0x1000001 0x0100
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0x1000002 0x0700
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0x1000003 0x1030
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0x1000004 0x0000
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0x1000008 0x0207
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0x1000009 0x0000
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0x100000a 0x0000
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0x100000c 0x0001
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0x100000d 0x0000
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0x100000f 0x0000
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0x1000010 0x0000
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0x1000011 0x0007
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0x1000012 0x0000
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0x1000013 0x0000
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0x2000032
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0x1000010 0x1590
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0x1000011 0x0227
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0x2000032
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0x1000012 0x009c
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0x2000032
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0x1000013 0x1900
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0x1000029 0x0023
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0x100002b 0x000e
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0x2000032
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0x1000020 0x0000
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0x1000021 0x0000
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0x2000032
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0x1000050 0x0000
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0x1000051 0x00ef
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0x1000052 0x0000
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0x1000053 0x013f
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0x1000060 0xa700
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0x1000061 0x0001
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0x100006a 0x0000
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0x1000080 0x0000
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0x1000081 0x0000
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0x1000082 0x0000
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0x1000083 0x0000
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0x1000084 0x0000
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0x1000085 0x0000
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0x1000090 0x0010
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0x1000092 0x0000
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0x1000093 0x0003
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0x1000095 0x0110
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0x1000097 0x0000
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0x1000098 0x0000
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0x1000007 0x0133
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0x1000020 0x0000
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0x1000021 0x0000
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0x2000064>;
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debug = <0>;
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};
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hy28b_ts: hy28b-ts@1 {
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compatible = "ti,ads7846";
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reg = <1>;
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spi-max-frequency = <2000000>;
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interrupts = <17 2>; /* high-to-low edge triggered */
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interrupt-parent = <&gpio>;
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pendown-gpio = <&gpio 17 0>;
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ti,x-plate-ohms = /bits/ 16 <100>;
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ti,pressure-max = /bits/ 16 <255>;
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};
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};
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};
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__overrides__ {
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speed = <&hy28b>,"spi-max-frequency:0";
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rotate = <&hy28b>,"rotate:0";
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fps = <&hy28b>,"fps:0";
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debug = <&hy28b>,"debug:0";
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xohms = <&hy28b_ts>,"ti,x-plate-ohms;0";
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resetgpio = <&hy28b>,"reset-gpios:4",
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<&hy28b_pins>, "brcm,pins:1";
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ledgpio = <&hy28b>,"led-gpios:4",
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<&hy28b_pins>, "brcm,pins:2";
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};
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};

‎arch/arm/boot/dts/piscreen-overlay.dts

Lines changed: 94 additions & 0 deletions
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@@ -0,0 +1,94 @@
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/*
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* Device Tree overlay for PiScreen 3.5" display shield by Ozzmaker
3+
*
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*/
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6+
/dts-v1/;
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/plugin/;
8+
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/ {
10+
compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
11+
12+
fragment@0 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
16+
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spidev@0{
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status = "disabled";
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};
20+
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spidev@1{
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status = "disabled";
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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piscreen_pins: piscreen_pins {
31+
brcm,pins = <17 25 24 22>;
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brcm,function = <0 1 1 1>; /* in out out out */
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};
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};
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};
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fragment@2 {
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target = <&spi0>;
39+
__overlay__ {
40+
/* needed to avoid dtc warning */
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#address-cells = <1>;
42+
#size-cells = <0>;
43+
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piscreen: piscreen@0{
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compatible = "ilitek,ili9486";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&piscreen_pins>;
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spi-max-frequency = <32000000>;
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rotate = <270>;
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bgr;
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fps = <30>;
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buswidth = <8>;
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regwidth = <16>;
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reset-gpios = <&gpio 25 0>;
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dc-gpios = <&gpio 24 0>;
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led-gpios = <&gpio 22 1>;
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debug = <0>;
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init = <0x10000b0 0x00
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0x1000011
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0x20000ff
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0x100003a 0x55
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0x1000036 0x28
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0x10000c2 0x44
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0x10000c5 0x00 0x00 0x00 0x00
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0x10000e0 0x0f 0x1f 0x1c 0x0c 0x0f 0x08 0x48 0x98 0x37 0x0a 0x13 0x04 0x11 0x0d 0x00
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0x10000e1 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00
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0x10000e2 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00
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0x1000011
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0x1000029>;
73+
};
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piscreen-ts@1 {
76+
compatible = "ti,ads7846";
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reg = <1>;
78+
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spi-max-frequency = <2000000>;
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interrupts = <17 2>; /* high-to-low edge triggered */
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interrupt-parent = <&gpio>;
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pendown-gpio = <&gpio 17 0>;
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ti,x-plate-ohms = /bits/ 16 <100>;
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ti,pressure-max = /bits/ 16 <255>;
85+
};
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};
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};
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__overrides__ {
89+
speed = <&piscreen>,"spi-max-frequency:0";
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rotate = <&piscreen>,"rotate:0";
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fps = <&piscreen>,"fps:0";
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debug = <&piscreen>,"debug:0";
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};
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};

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