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>
92 lines
2.7 KiB
Diff
92 lines
2.7 KiB
Diff
From c0dfc87e355a7c6e434122e1a4fcc69729970610 Mon Sep 17 00:00:00 2001
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From: Samuel Hsu <hsu@distec.de>
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Date: Mon, 8 Apr 2019 17:06:44 +0200
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Subject: [PATCH] BCM2708: Add core Device Tree support, ilitek251x
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Signed-off-by: Samuel Hsu <hsu@distec.de>
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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 | 11 +++++
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.../boot/dts/overlays/ilitek251x-overlay.dts | 45 +++++++++++++++++++
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3 files changed, 57 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/ilitek251x-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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@@ -67,6 +67,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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i2c0-bcm2708.dtbo \
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i2c1-bcm2708.dtbo \
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i2s-gpio28-31.dtbo \
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+ ilitek251x.dtbo \
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iqaudio-dac.dtbo \
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iqaudio-dacplus.dtbo \
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iqaudio-digi-wm8804-audio.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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@@ -1146,6 +1146,17 @@ Load: dtoverlay=i2s-gpio28-31
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Params: <None>
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+Name: ilitek251x
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+Info: Enables I2C connected Ilitek 251x multiple touch controller using
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+ GPIO 4 (pin 7 on GPIO header) for interrupt.
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+Load: dtoverlay=ilitek251x,<param>=<val>
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+Params: interrupt GPIO used for interrupt (default 4)
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+ sizex Touchscreen size x, horizontal resolution of
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+ touchscreen (in pixels)
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+ sizey Touchscreen size y, vertical resolution of
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+ touchscreen (in pixels)
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+
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+
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Name: iqaudio-dac
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Info: Configures the IQaudio DAC audio card
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Load: dtoverlay=iqaudio-dac,<param>
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/ilitek251x-overlay.dts
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@@ -0,0 +1,45 @@
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+// Device tree overlay for I2C connected Ilitek multiple touch controller
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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,bcm2708";
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+
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+ fragment@0 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ ili251x_pins: ili251x_pins {
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+ brcm,pins = <4>; // interrupt
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+ brcm,function = <0>; // in
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+ brcm,pull = <2>; // pull-up //
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+ };
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&i2c1>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ ili251x: ili251x@41 {
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+ compatible = "ilitek,ili251x";
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+ reg = <0x41>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&ili251x_pins>;
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+ interrupt-parent = <&gpio>;
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+ interrupts = <4 8>; // high-to-low edge triggered
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+ touchscreen-size-x = <16384>;
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+ touchscreen-size-y = <9600>;
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+ };
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+ };
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+ };
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+
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+ __overrides__ {
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+ interrupt = <&ili251x_pins>,"brcm,pins:0",
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+ <&ili251x>,"interrupts:0";
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+ sizex = <&ili251x>,"touchscreen-size-x:0";
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+ sizey = <&ili251x>,"touchscreen-size-y:0";
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+ };
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+};
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