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- From 9a5679751907b45b2470c02322dff8e87980464a Mon Sep 17 00:00:00 2001
- From: =?UTF-8?q?Petter=20Mab=C3=A4cker?= <petter@technux.se>
- Date: Fri, 8 Jan 2016 09:02:44 +0100
- Subject: [PATCH] dts: add overlay for pitft22
- MIME-Version: 1.0
- Content-Type: text/plain; charset=UTF-8
- Content-Transfer-Encoding: 8bit
- Add the pitft22 overlay from adafruit Adafruit-Pi-Kernel-o-Matic repo:
- https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic
- Signed-off-by: Petter Mabäcker <petter@technux.se>
- Signed-off-by: Andrei Gherzan <andrei@resin.io>
- ---
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 12 +++++
- arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69 ++++++++++++++++++++++++++
- 3 files changed, 82 insertions(+)
- create mode 100644 arch/arm/boot/dts/overlays/pitft22-overlay.dts
- --- a/arch/arm/boot/dts/overlays/Makefile
- +++ b/arch/arm/boot/dts/overlays/Makefile
- @@ -51,6 +51,7 @@ dtbo-$(RPI_DT_OVERLAYS) += pi3-disable-b
- dtbo-$(RPI_DT_OVERLAYS) += pi3-miniuart-bt.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += piscreen.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += piscreen2r.dtbo
- +dtbo-$(RPI_DT_OVERLAYS) += pitft22.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += pitft28-capacitive.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += pitft28-resistive.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += pps-gpio.dtbo
- --- a/arch/arm/boot/dts/overlays/README
- +++ b/arch/arm/boot/dts/overlays/README
- @@ -644,6 +644,18 @@ Params: speed Display
- xohms Touchpanel sensitivity (X-plate resistance)
-
-
- +Name: pitft22
- +Info: Adafruit PiTFT 2.2" screen
- +Load: dtoverlay=pitft22,<param>=<val>
- +Params: speed Display SPI bus speed
- +
- + rotate Display rotation {0,90,180,270}
- +
- + fps Delay between frame updates
- +
- + debug Debug output level {0-7}
- +
- +
- Name: pitft28-capacitive
- Info: Adafruit PiTFT 2.8" capacitive touch screen
- Load: dtoverlay=pitft28-capacitive,<param>=<val>
- --- /dev/null
- +++ b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
- @@ -0,0 +1,69 @@
- +/*
- + * Device Tree overlay for pitft by Adafruit
- + *
- + */
- +
- +/dts-v1/;
- +/plugin/;
- +
- +/ {
- + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
- +
- + fragment@0 {
- + target = <&spi0>;
- + __overlay__ {
- + status = "okay";
- +
- + spidev@0{
- + status = "disabled";
- + };
- +
- + spidev@1{
- + status = "disabled";
- + };
- + };
- + };
- +
- + fragment@1 {
- + target = <&gpio>;
- + __overlay__ {
- + pitft_pins: pitft_pins {
- + brcm,pins = <25>;
- + brcm,function = <1>; /* out */
- + brcm,pull = <0>; /* none */
- + };
- + };
- + };
- +
- + fragment@2 {
- + target = <&spi0>;
- + __overlay__ {
- + /* needed to avoid dtc warning */
- + #address-cells = <1>;
- + #size-cells = <0>;
- +
- + pitft: pitft@0{
- + compatible = "ilitek,ili9340";
- + reg = <0>;
- + pinctrl-names = "default";
- + pinctrl-0 = <&pitft_pins>;
- +
- + spi-max-frequency = <32000000>;
- + rotate = <90>;
- + fps = <25>;
- + bgr;
- + buswidth = <8>;
- + dc-gpios = <&gpio 25 0>;
- + debug = <0>;
- + };
- +
- + };
- + };
- +
- + __overrides__ {
- + speed = <&pitft>,"spi-max-frequency:0";
- + rotate = <&pitft>,"rotate:0";
- + fps = <&pitft>,"fps:0";
- + debug = <&pitft>,"debug:0";
- + };
- +};
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