1 From 15aa7a1d49c20f7f41b5c69cea2f46e1e976e660 Mon Sep 17 00:00:00 2001
2 From: Aaron Shaw <shawaj@gmail.com>
3 Date: Sun, 24 Dec 2017 21:57:05 +0000
4 Subject: [PATCH 143/454] overlays: Add media center HAT overlay (#2313)
7 arch/arm/boot/dts/overlays/Makefile | 1 +
8 arch/arm/boot/dts/overlays/README | 24 ++++
9 .../dts/overlays/media-center-overlay.dts | 132 ++++++++++++++++++
10 3 files changed, 157 insertions(+)
11 create mode 100644 arch/arm/boot/dts/overlays/media-center-overlay.dts
13 --- a/arch/arm/boot/dts/overlays/Makefile
14 +++ b/arch/arm/boot/dts/overlays/Makefile
15 @@ -61,6 +61,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
23 --- a/arch/arm/boot/dts/overlays/README
24 +++ b/arch/arm/boot/dts/overlays/README
25 @@ -994,6 +994,30 @@ Params: spi<n>-<m>-present boolean,
26 spi<n>-<m>-speed integer, set the spi bus speed for this device
30 +Info: Media Center HAT - 2.83" Touch Display + extras by Pi Supply
31 +Load: dtoverlay=media-center,<param>=<val>
32 +Params: speed Display SPI bus speed
33 + rotate Display rotation {0,90,180,270}
34 + fps Delay between frame updates
35 + xohms Touchpanel sensitivity (X-plate resistance)
36 + swapxy Swap x and y axis
37 + gpio_out_pin GPIO for output (default "17")
38 + gpio_in_pin GPIO for input (default "18")
39 + gpio_in_pull Pull up/down/off on the input pin
41 + sense Override the IR receive auto-detection logic:
42 + "0" = force active-high
43 + "1" = force active-low
44 + "-1" = use auto-detection
46 + softcarrier Turn the software carrier "on" or "off"
48 + invert "on" = invert the output pin (default "off")
49 + debug "on" = enable additional debug messages
54 Info: Configures UART0 (ttyAMA0) so that a requested 38.4kbaud actually gets
55 31.25kbaud, the frequency required for MIDI
57 +++ b/arch/arm/boot/dts/overlays/media-center-overlay.dts
60 + * Device Tree overlay for Media Center HAT by Pi Supply
68 + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
76 + status = "disabled";
80 + status = "disabled";
88 + rpi_display_pins: rpi_display_pins {
89 + brcm,pins = <12 23 24 25>;
90 + brcm,function = <1 1 1 0>; /* out out out in */
91 + brcm,pull = <0 0 0 2>; /* - - - up */
99 + /* needed to avoid dtc warning */
100 + #address-cells = <1>;
103 + rpidisplay: rpi-display@0{
104 + compatible = "ilitek,ili9341";
106 + pinctrl-names = "default";
107 + pinctrl-0 = <&rpi_display_pins>;
109 + spi-max-frequency = <32000000>;
114 + reset-gpios = <&gpio 23 0>;
115 + dc-gpios = <&gpio 24 0>;
116 + led-gpios = <&gpio 12 1>;
120 + rpidisplay_ts: rpi-display-ts@1 {
121 + compatible = "ti,ads7846";
124 + spi-max-frequency = <2000000>;
125 + interrupts = <25 2>; /* high-to-low edge triggered */
126 + interrupt-parent = <&gpio>;
127 + pendown-gpio = <&gpio 25 0>;
128 + ti,x-plate-ohms = /bits/ 16 <60>;
129 + ti,pressure-max = /bits/ 16 <255>;
137 + lirc_rpi: lirc_rpi {
138 + compatible = "rpi,lirc-rpi";
139 + pinctrl-names = "default";
140 + pinctrl-0 = <&lirc_pins>;
143 + // Override autodetection of IR receiver circuit
144 + // (0 = active high, 1 = active low, -1 = no override )
145 + rpi,sense = <0xffffffff>;
147 + // Software carrier
148 + // (0 = off, 1 = on)
149 + rpi,softcarrier = <1>;
152 + // (0 = off, 1 = on)
155 + // Enable debugging messages
156 + // (0 = off, 1 = on)
165 + lirc_pins: lirc_pins {
167 + brcm,function = <1 0>; // out in
168 + brcm,pull = <0 1>; // off down
174 + speed = <&rpidisplay>,"spi-max-frequency:0";
175 + rotate = <&rpidisplay>,"rotate:0";
176 + fps = <&rpidisplay>,"fps:0";
177 + debug = <&rpidisplay>,"debug:0",
178 + <&lirc_rpi>,"rpi,debug:0";
179 + xohms = <&rpidisplay_ts>,"ti,x-plate-ohms;0";
180 + swapxy = <&rpidisplay_ts>,"ti,swap-xy?";
182 + gpio_out_pin = <&lirc_pins>,"brcm,pins:0";
183 + gpio_in_pin = <&lirc_pins>,"brcm,pins:4";
184 + gpio_in_pull = <&lirc_pins>,"brcm,pull:4";
186 + sense = <&lirc_rpi>,"rpi,sense:0";
187 + softcarrier = <&lirc_rpi>,"rpi,softcarrier:0";
188 + invert = <&lirc_rpi>,"rpi,invert:0";