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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
210 lines
5.2 KiB
Diff
210 lines
5.2 KiB
Diff
From a64595c1bc19752dca712c6cd90692a2a0e7397b Mon Sep 17 00:00:00 2001
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From: Hans-Wilhelm Warlo <5417271+hanswilw@users.noreply.github.com>
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Date: Tue, 16 Oct 2018 18:20:48 +0200
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Subject: [PATCH] Add hy28b 2017 model device tree overlay (#2721)
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The 2017 version of the hy28b display requires a different
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initialisation sequence.
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Signed-off-by: Hans-Wilhelm Warlo <hw@warlo.no>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 19 +++
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.../boot/dts/overlays/hy28b-2017-overlay.dts | 152 ++++++++++++++++++
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3 files changed, 172 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -49,6 +49,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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hifiberry-digi-pro.dtbo \
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hy28a.dtbo \
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hy28b.dtbo \
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+ hy28b-2017.dtbo \
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i2c-bcm2708.dtbo \
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i2c-gpio.dtbo \
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i2c-mux.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -770,6 +770,25 @@ Params: speed Display
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ledgpio GPIO used to control backlight
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+Name: hy28b-2017
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+Info: HY28B 2017 version - 2.8" TFT LCD Display Module by HAOYU Electronics
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+ Default values match Texy's display shield
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+Load: dtoverlay=hy28b-2017,<param>=<val>
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+Params: speed Display SPI bus speed
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+
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+ rotate Display rotation {0,90,180,270}
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+
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+ fps Delay between frame updates
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+
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+ debug Debug output level {0-7}
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+
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+ xohms Touchpanel sensitivity (X-plate resistance)
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+
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+ resetgpio GPIO used to reset controller
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+
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+ ledgpio GPIO used to control backlight
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+
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+
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Name: i2c-bcm2708
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Info: Fall back to the i2c_bcm2708 driver for the i2c_arm bus.
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Load: dtoverlay=i2c-bcm2708
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
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@@ -0,0 +1,152 @@
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+/*
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+ * Device Tree overlay for HY28b display shield by Texy.
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+ * Modified for 2017 version with ILI9325 D chip
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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+
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+ fragment@0 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&spidev0>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&spidev1>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ hy28b_pins: hy28b_pins {
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+ brcm,pins = <17 25 18>;
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+ brcm,function = <0 1 1>; /* in out out */
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+ };
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ /* needed to avoid dtc warning */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ hy28b: hy28b@0{
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+ compatible = "ilitek,ili9325";
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+ reg = <0>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&hy28b_pins>;
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+
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+ spi-max-frequency = <48000000>;
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+ spi-cpol;
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+ spi-cpha;
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+ rotate = <270>;
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+ bgr;
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+ fps = <50>;
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+ buswidth = <8>;
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+ startbyte = <0x70>;
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+ reset-gpios = <&gpio 25 0>;
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+ led-gpios = <&gpio 18 1>;
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+
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+ init = <0x10000e5 0x78F0
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+ 0x1000001 0x0100
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+ 0x1000002 0x0700
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+ 0x1000003 0x1030
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+ 0x1000004 0x0000
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+ 0x1000008 0x0207
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+ 0x1000009 0x0000
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+ 0x100000a 0x0000
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+ 0x100000c 0x0000
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+ 0x100000d 0x0000
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+ 0x100000f 0x0000
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+ 0x1000010 0x0000
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+ 0x1000011 0x0007
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+ 0x1000012 0x0000
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+ 0x1000013 0x0000
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+ 0x1000007 0x0001
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+ 0x2000032
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+ 0x2000032
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+ 0x2000032
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+ 0x2000032
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+ 0x1000010 0x1090
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+ 0x1000011 0x0227
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+ 0x2000032
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+ 0x1000012 0x001f
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+ 0x2000032
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+ 0x1000013 0x1500
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+ 0x1000029 0x0027
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+ 0x100002b 0x000d
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+ 0x2000032
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+ 0x1000020 0x0000
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+ 0x1000021 0x0000
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+ 0x2000032
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+ 0x1000030 0x0000
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+ 0x1000031 0x0707
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+ 0x1000032 0x0307
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+ 0x1000035 0x0200
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+ 0x1000036 0x0008
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+ 0x1000037 0x0004
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+ 0x1000038 0x0000
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+ 0x1000039 0x0707
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+ 0x100003c 0x0002
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+ 0x100003d 0x1d04
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+ 0x1000050 0x0000
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+ 0x1000051 0x00ef
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+ 0x1000052 0x0000
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+ 0x1000053 0x013f
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+ 0x1000060 0xa700
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+ 0x1000061 0x0001
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+ 0x100006a 0x0000
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+ 0x1000080 0x0000
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+ 0x1000081 0x0000
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+ 0x1000082 0x0000
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+ 0x1000083 0x0000
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+ 0x1000084 0x0000
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+ 0x1000085 0x0000
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+ 0x1000090 0x0010
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+ 0x1000092 0x0600
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+ 0x1000007 0x0133>;
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+ debug = <0>;
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+ };
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+
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+ hy28b_ts: hy28b-ts@1 {
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+ compatible = "ti,ads7846";
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+ reg = <1>;
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+
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+ spi-max-frequency = <2000000>;
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+ interrupts = <17 2>; /* high-to-low edge triggered */
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+ interrupt-parent = <&gpio>;
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+ pendown-gpio = <&gpio 17 0>;
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+ ti,x-plate-ohms = /bits/ 16 <100>;
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+ ti,pressure-max = /bits/ 16 <255>;
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+ };
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+ };
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+ };
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+ __overrides__ {
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+ speed = <&hy28b>,"spi-max-frequency:0";
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+ rotate = <&hy28b>,"rotate:0";
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+ fps = <&hy28b>,"fps:0";
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+ debug = <&hy28b>,"debug:0";
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+ xohms = <&hy28b_ts>,"ti,x-plate-ohms;0";
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+ resetgpio = <&hy28b>,"reset-gpios:4",
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+ <&hy28b_pins>, "brcm,pins:4";
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+ ledgpio = <&hy28b>,"led-gpios:4",
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+ <&hy28b_pins>, "brcm,pins:8";
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+ };
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+};
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