1 From 9a5679751907b45b2470c02322dff8e87980464a Mon Sep 17 00:00:00 2001
2 From: =?UTF-8?q?Petter=20Mab=C3=A4cker?= <petter@technux.se>
3 Date: Fri, 8 Jan 2016 09:02:44 +0100
4 Subject: [PATCH] dts: add overlay for pitft22
6 Content-Type: text/plain; charset=UTF-8
7 Content-Transfer-Encoding: 8bit
9 Add the pitft22 overlay from adafruit Adafruit-Pi-Kernel-o-Matic repo:
10 https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic
12 Signed-off-by: Petter Mabäcker <petter@technux.se>
13 Signed-off-by: Andrei Gherzan <andrei@resin.io>
15 arch/arm/boot/dts/overlays/Makefile | 1 +
16 arch/arm/boot/dts/overlays/README | 12 +++++
17 arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69 ++++++++++++++++++++++++++
18 3 files changed, 82 insertions(+)
19 create mode 100644 arch/arm/boot/dts/overlays/pitft22-overlay.dts
21 --- a/arch/arm/boot/dts/overlays/Makefile
22 +++ b/arch/arm/boot/dts/overlays/Makefile
23 @@ -51,6 +51,7 @@ dtbo-$(RPI_DT_OVERLAYS) += pi3-disable-b
24 dtbo-$(RPI_DT_OVERLAYS) += pi3-miniuart-bt.dtbo
25 dtbo-$(RPI_DT_OVERLAYS) += piscreen.dtbo
26 dtbo-$(RPI_DT_OVERLAYS) += piscreen2r.dtbo
27 +dtbo-$(RPI_DT_OVERLAYS) += pitft22.dtbo
28 dtbo-$(RPI_DT_OVERLAYS) += pitft28-capacitive.dtbo
29 dtbo-$(RPI_DT_OVERLAYS) += pitft28-resistive.dtbo
30 dtbo-$(RPI_DT_OVERLAYS) += pps-gpio.dtbo
31 --- a/arch/arm/boot/dts/overlays/README
32 +++ b/arch/arm/boot/dts/overlays/README
33 @@ -644,6 +644,18 @@ Params: speed Display
34 xohms Touchpanel sensitivity (X-plate resistance)
38 +Info: Adafruit PiTFT 2.2" screen
39 +Load: dtoverlay=pitft22,<param>=<val>
40 +Params: speed Display SPI bus speed
42 + rotate Display rotation {0,90,180,270}
44 + fps Delay between frame updates
46 + debug Debug output level {0-7}
49 Name: pitft28-capacitive
50 Info: Adafruit PiTFT 2.8" capacitive touch screen
51 Load: dtoverlay=pitft28-capacitive,<param>=<val>
53 +++ b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
56 + * Device Tree overlay for pitft by Adafruit
64 + compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
72 + status = "disabled";
76 + status = "disabled";
84 + pitft_pins: pitft_pins {
86 + brcm,function = <1>; /* out */
87 + brcm,pull = <0>; /* none */
95 + /* needed to avoid dtc warning */
96 + #address-cells = <1>;
100 + compatible = "ilitek,ili9340";
102 + pinctrl-names = "default";
103 + pinctrl-0 = <&pitft_pins>;
105 + spi-max-frequency = <32000000>;
110 + dc-gpios = <&gpio 25 0>;
118 + speed = <&pitft>,"spi-max-frequency:0";
119 + rotate = <&pitft>,"rotate:0";
120 + fps = <&pitft>,"fps:0";
121 + debug = <&pitft>,"debug:0";