+++ /dev/null
-From a64595c1bc19752dca712c6cd90692a2a0e7397b Mon Sep 17 00:00:00 2001
-From: Hans-Wilhelm Warlo <5417271+hanswilw@users.noreply.github.com>
-Date: Tue, 16 Oct 2018 18:20:48 +0200
-Subject: [PATCH] Add hy28b 2017 model device tree overlay (#2721)
-
-The 2017 version of the hy28b display requires a different
-initialisation sequence.
-
-Signed-off-by: Hans-Wilhelm Warlo <hw@warlo.no>
----
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 19 +++
- .../boot/dts/overlays/hy28b-2017-overlay.dts | 152 ++++++++++++++++++
- 3 files changed, 172 insertions(+)
- create mode 100644 arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -49,6 +49,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
- hifiberry-digi-pro.dtbo \
- hy28a.dtbo \
- hy28b.dtbo \
-+ hy28b-2017.dtbo \
- i2c-bcm2708.dtbo \
- i2c-gpio.dtbo \
- i2c-mux.dtbo \
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -770,6 +770,25 @@ Params: speed Display
- ledgpio GPIO used to control backlight
-
-
-+Name: hy28b-2017
-+Info: HY28B 2017 version - 2.8" TFT LCD Display Module by HAOYU Electronics
-+ Default values match Texy's display shield
-+Load: dtoverlay=hy28b-2017,<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}
-+
-+ xohms Touchpanel sensitivity (X-plate resistance)
-+
-+ resetgpio GPIO used to reset controller
-+
-+ ledgpio GPIO used to control backlight
-+
-+
- Name: i2c-bcm2708
- Info: Fall back to the i2c_bcm2708 driver for the i2c_arm bus.
- Load: dtoverlay=i2c-bcm2708
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
-@@ -0,0 +1,152 @@
-+/*
-+ * Device Tree overlay for HY28b display shield by Texy.
-+ * Modified for 2017 version with ILI9325 D chip
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
-+
-+ fragment@0 {
-+ target = <&spi0>;
-+ __overlay__ {
-+ status = "okay";
-+ };
-+ };
-+
-+ fragment@1 {
-+ target = <&spidev0>;
-+ __overlay__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@2 {
-+ target = <&spidev1>;
-+ __overlay__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@3 {
-+ target = <&gpio>;
-+ __overlay__ {
-+ hy28b_pins: hy28b_pins {
-+ brcm,pins = <17 25 18>;
-+ brcm,function = <0 1 1>; /* in out out */
-+ };
-+ };
-+ };
-+
-+ fragment@4 {
-+ target = <&spi0>;
-+ __overlay__ {
-+ /* needed to avoid dtc warning */
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ hy28b: hy28b@0{
-+ compatible = "ilitek,ili9325";
-+ reg = <0>;
-+ pinctrl-names = "default";
-+ pinctrl-0 = <&hy28b_pins>;
-+
-+ spi-max-frequency = <48000000>;
-+ spi-cpol;
-+ spi-cpha;
-+ rotate = <270>;
-+ bgr;
-+ fps = <50>;
-+ buswidth = <8>;
-+ startbyte = <0x70>;
-+ reset-gpios = <&gpio 25 0>;
-+ led-gpios = <&gpio 18 1>;
-+
-+ init = <0x10000e5 0x78F0
-+ 0x1000001 0x0100
-+ 0x1000002 0x0700
-+ 0x1000003 0x1030
-+ 0x1000004 0x0000
-+ 0x1000008 0x0207
-+ 0x1000009 0x0000
-+ 0x100000a 0x0000
-+ 0x100000c 0x0000
-+ 0x100000d 0x0000
-+ 0x100000f 0x0000
-+ 0x1000010 0x0000
-+ 0x1000011 0x0007
-+ 0x1000012 0x0000
-+ 0x1000013 0x0000
-+ 0x1000007 0x0001
-+ 0x2000032
-+ 0x2000032
-+ 0x2000032
-+ 0x2000032
-+ 0x1000010 0x1090
-+ 0x1000011 0x0227
-+ 0x2000032
-+ 0x1000012 0x001f
-+ 0x2000032
-+ 0x1000013 0x1500
-+ 0x1000029 0x0027
-+ 0x100002b 0x000d
-+ 0x2000032
-+ 0x1000020 0x0000
-+ 0x1000021 0x0000
-+ 0x2000032
-+ 0x1000030 0x0000
-+ 0x1000031 0x0707
-+ 0x1000032 0x0307
-+ 0x1000035 0x0200
-+ 0x1000036 0x0008
-+ 0x1000037 0x0004
-+ 0x1000038 0x0000
-+ 0x1000039 0x0707
-+ 0x100003c 0x0002
-+ 0x100003d 0x1d04
-+ 0x1000050 0x0000
-+ 0x1000051 0x00ef
-+ 0x1000052 0x0000
-+ 0x1000053 0x013f
-+ 0x1000060 0xa700
-+ 0x1000061 0x0001
-+ 0x100006a 0x0000
-+ 0x1000080 0x0000
-+ 0x1000081 0x0000
-+ 0x1000082 0x0000
-+ 0x1000083 0x0000
-+ 0x1000084 0x0000
-+ 0x1000085 0x0000
-+ 0x1000090 0x0010
-+ 0x1000092 0x0600
-+ 0x1000007 0x0133>;
-+ debug = <0>;
-+ };
-+
-+ hy28b_ts: hy28b-ts@1 {
-+ compatible = "ti,ads7846";
-+ reg = <1>;
-+
-+ spi-max-frequency = <2000000>;
-+ interrupts = <17 2>; /* high-to-low edge triggered */
-+ interrupt-parent = <&gpio>;
-+ pendown-gpio = <&gpio 17 0>;
-+ ti,x-plate-ohms = /bits/ 16 <100>;
-+ ti,pressure-max = /bits/ 16 <255>;
-+ };
-+ };
-+ };
-+ __overrides__ {
-+ speed = <&hy28b>,"spi-max-frequency:0";
-+ rotate = <&hy28b>,"rotate:0";
-+ fps = <&hy28b>,"fps:0";
-+ debug = <&hy28b>,"debug:0";
-+ xohms = <&hy28b_ts>,"ti,x-plate-ohms;0";
-+ resetgpio = <&hy28b>,"reset-gpios:4",
-+ <&hy28b_pins>, "brcm,pins:4";
-+ ledgpio = <&hy28b>,"led-gpios:4",
-+ <&hy28b_pins>, "brcm,pins:8";
-+ };
-+};
projects / openwrt / openwrt.git / blobdiff