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-rw-r--r--target/linux/brcm2708/patches-4.4/0307-dts-add-overlay-for-pitft22.patch123
1 files changed, 123 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0307-dts-add-overlay-for-pitft22.patch b/target/linux/brcm2708/patches-4.4/0307-dts-add-overlay-for-pitft22.patch
new file mode 100644
index 0000000000..9827d59869
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0307-dts-add-overlay-for-pitft22.patch
@@ -0,0 +1,123 @@
+From 56fa6791fbd2021cec1eeb45462b2ad3d1631a05 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 307/381] 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";
++ };
++};