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191 lines
5.3 KiB
Diff
191 lines
5.3 KiB
Diff
From 15aa7a1d49c20f7f41b5c69cea2f46e1e976e660 Mon Sep 17 00:00:00 2001
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From: Aaron Shaw <shawaj@gmail.com>
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Date: Sun, 24 Dec 2017 21:57:05 +0000
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Subject: [PATCH 143/454] overlays: Add media center HAT overlay (#2313)
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 24 ++++
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.../dts/overlays/media-center-overlay.dts | 132 ++++++++++++++++++
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3 files changed, 157 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/media-center-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -61,6 +61,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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mcp2515-can0.dtbo \
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mcp2515-can1.dtbo \
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mcp3008.dtbo \
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+ media-center.dtbo \
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midi-uart0.dtbo \
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midi-uart1.dtbo \
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mmc.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -994,6 +994,30 @@ Params: spi<n>-<m>-present boolean,
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spi<n>-<m>-speed integer, set the spi bus speed for this device
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+Name: media-center
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+Info: Media Center HAT - 2.83" Touch Display + extras by Pi Supply
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+Load: dtoverlay=media-center,<param>=<val>
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+Params: speed Display SPI bus speed
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+ rotate Display rotation {0,90,180,270}
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+ fps Delay between frame updates
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+ xohms Touchpanel sensitivity (X-plate resistance)
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+ swapxy Swap x and y axis
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+ gpio_out_pin GPIO for output (default "17")
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+ gpio_in_pin GPIO for input (default "18")
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+ gpio_in_pull Pull up/down/off on the input pin
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+ (default "down")
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+ sense Override the IR receive auto-detection logic:
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+ "0" = force active-high
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+ "1" = force active-low
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+ "-1" = use auto-detection
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+ (default "-1")
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+ softcarrier Turn the software carrier "on" or "off"
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+ (default "on")
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+ invert "on" = invert the output pin (default "off")
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+ debug "on" = enable additional debug messages
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+ (default "off")
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+
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+
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Name: midi-uart0
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Info: Configures UART0 (ttyAMA0) so that a requested 38.4kbaud actually gets
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31.25kbaud, the frequency required for MIDI
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/media-center-overlay.dts
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@@ -0,0 +1,132 @@
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+/*
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+ * Device Tree overlay for Media Center HAT by Pi Supply
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+ *
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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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+/ {
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+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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+
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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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+
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+ spidev@0{
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+ status = "disabled";
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+ };
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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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+
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+ fragment@1 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ rpi_display_pins: rpi_display_pins {
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+ brcm,pins = <12 23 24 25>;
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+ brcm,function = <1 1 1 0>; /* out out out in */
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+ brcm,pull = <0 0 0 2>; /* - - - up */
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+ };
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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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+
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+ rpidisplay: rpi-display@0{
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+ compatible = "ilitek,ili9341";
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+ reg = <0>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&rpi_display_pins>;
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+
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+ spi-max-frequency = <32000000>;
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+ rotate = <90>;
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+ bgr;
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+ fps = <30>;
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+ buswidth = <8>;
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+ reset-gpios = <&gpio 23 0>;
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+ dc-gpios = <&gpio 24 0>;
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+ led-gpios = <&gpio 12 1>;
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+ debug = <0>;
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+ };
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+
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+ rpidisplay_ts: rpi-display-ts@1 {
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+ compatible = "ti,ads7846";
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+ reg = <1>;
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+
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+ spi-max-frequency = <2000000>;
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+ interrupts = <25 2>; /* high-to-low edge triggered */
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+ interrupt-parent = <&gpio>;
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+ pendown-gpio = <&gpio 25 0>;
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+ ti,x-plate-ohms = /bits/ 16 <60>;
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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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+
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+ fragment@3 {
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+ target-path = "/";
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+ __overlay__ {
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+ lirc_rpi: lirc_rpi {
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+ compatible = "rpi,lirc-rpi";
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&lirc_pins>;
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+ status = "okay";
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+
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+ // Override autodetection of IR receiver circuit
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+ // (0 = active high, 1 = active low, -1 = no override )
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+ rpi,sense = <0xffffffff>;
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+
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+ // Software carrier
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+ // (0 = off, 1 = on)
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+ rpi,softcarrier = <1>;
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+
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+ // Invert output
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+ // (0 = off, 1 = on)
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+ rpi,invert = <0>;
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+
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+ // Enable debugging messages
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+ // (0 = off, 1 = on)
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+ rpi,debug = <0>;
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+ };
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ lirc_pins: lirc_pins {
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+ brcm,pins = <6 5>;
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+ brcm,function = <1 0>; // out in
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+ brcm,pull = <0 1>; // off down
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+ };
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+ };
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+ };
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+
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+ __overrides__ {
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+ speed = <&rpidisplay>,"spi-max-frequency:0";
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+ rotate = <&rpidisplay>,"rotate:0";
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+ fps = <&rpidisplay>,"fps:0";
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+ debug = <&rpidisplay>,"debug:0",
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+ <&lirc_rpi>,"rpi,debug:0";
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+ xohms = <&rpidisplay_ts>,"ti,x-plate-ohms;0";
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+ swapxy = <&rpidisplay_ts>,"ti,swap-xy?";
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+
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+ gpio_out_pin = <&lirc_pins>,"brcm,pins:0";
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+ gpio_in_pin = <&lirc_pins>,"brcm,pins:4";
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+ gpio_in_pull = <&lirc_pins>,"brcm,pull:4";
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+
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+ sense = <&lirc_rpi>,"rpi,sense:0";
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+ softcarrier = <&lirc_rpi>,"rpi,softcarrier:0";
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+ invert = <&lirc_rpi>,"rpi,invert:0";
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+ };
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+};
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