mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
98 lines
3.1 KiB
Diff
98 lines
3.1 KiB
Diff
|
From 7c9c2e970b0a047ae2a747752fdd12e31dbb2451 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Jeff LaBundy <jeff@labundy.com>
|
||
|
|
Date: Mon, 28 Jan 2019 23:11:47 -0600
|
||
|
|
Subject: [PATCH] overlays: Add overlay for Azoteq IQS550
|
||
|
|
|
||
|
|
This patch adds a device tree overlay for the Azoteq IQS550
|
||
|
|
trackpad/touchscreen controller.
|
||
|
|
|
||
|
|
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
|
||
|
|
---
|
||
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
||
|
|
arch/arm/boot/dts/overlays/README | 13 ++++++
|
||
|
|
arch/arm/boot/dts/overlays/iqs550-overlay.dts | 46 +++++++++++++++++++
|
||
|
|
3 files changed, 60 insertions(+)
|
||
|
|
create mode 100644 arch/arm/boot/dts/overlays/iqs550-overlay.dts
|
||
|
|
|
||
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
||
|
|
@@ -106,6 +106,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
|
||
|
|
iqaudio-dac.dtbo \
|
||
|
|
iqaudio-dacplus.dtbo \
|
||
|
|
iqaudio-digi-wm8804-audio.dtbo \
|
||
|
|
+ iqs550.dtbo \
|
||
|
|
irs1125.dtbo \
|
||
|
|
jedec-spi-nor.dtbo \
|
||
|
|
justboom-both.dtbo \
|
||
|
|
--- a/arch/arm/boot/dts/overlays/README
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
||
|
|
@@ -1991,6 +1991,19 @@ Params: card_name Override
|
||
|
|
dai stream name.
|
||
|
|
|
||
|
|
|
||
|
|
+Name: iqs550
|
||
|
|
+Info: Enables I2C connected Azoteq IQS550 trackpad/touchscreen controller
|
||
|
|
+ using GPIO 4 (pin 7 on GPIO header) for interrupt.
|
||
|
|
+Load: dtoverlay=iqs550,<param>=<val>
|
||
|
|
+Params: interrupt GPIO used for interrupt (default 4)
|
||
|
|
+ reset GPIO used for reset (optional)
|
||
|
|
+ sizex Touchscreen size x (default 800)
|
||
|
|
+ sizey Touchscreen size y (default 480)
|
||
|
|
+ invx Touchscreen inverted x axis
|
||
|
|
+ invy Touchscreen inverted y axis
|
||
|
|
+ swapxy Touchscreen swapped x y axis
|
||
|
|
+
|
||
|
|
+
|
||
|
|
Name: irs1125
|
||
|
|
Info: Infineon irs1125 TOF camera module.
|
||
|
|
Uses Unicam 1, which is the standard camera connector on most Pi
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/iqs550-overlay.dts
|
||
|
|
@@ -0,0 +1,46 @@
|
||
|
|
+// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
+// Definitions for Azoteq IQS550 trackpad/touchscreen controller
|
||
|
|
+/dts-v1/;
|
||
|
|
+/plugin/;
|
||
|
|
+#include <dt-bindings/gpio/gpio.h>
|
||
|
|
+#include <dt-bindings/interrupt-controller/irq.h>
|
||
|
|
+
|
||
|
|
+/ {
|
||
|
|
+ compatible = "brcm,bcm2835";
|
||
|
|
+
|
||
|
|
+ fragment@0 {
|
||
|
|
+ target = <&i2c1>;
|
||
|
|
+ __overlay__ {
|
||
|
|
+ #address-cells = <1>;
|
||
|
|
+ #size-cells = <0>;
|
||
|
|
+ status = "okay";
|
||
|
|
+
|
||
|
|
+ iqs550: iqs550@74 {
|
||
|
|
+ compatible = "azoteq,iqs550";
|
||
|
|
+ reg = <0x74>;
|
||
|
|
+ interrupt-parent = <&gpio>;
|
||
|
|
+ interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
+ touchscreen-size-x = <800>;
|
||
|
|
+ touchscreen-size-y = <480>;
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+
|
||
|
|
+ fragment@1 {
|
||
|
|
+ target = <&iqs550>;
|
||
|
|
+ iqs550_reset: __dormant__ {
|
||
|
|
+ reset-gpios = <&gpio 255 (GPIO_ACTIVE_LOW |
|
||
|
|
+ GPIO_PUSH_PULL)>;
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+
|
||
|
|
+ __overrides__ {
|
||
|
|
+ interrupt = <&iqs550>,"interrupts:0";
|
||
|
|
+ reset = <0>,"+1", <&iqs550_reset>,"reset-gpios:4";
|
||
|
|
+ sizex = <&iqs550>,"touchscreen-size-x:0";
|
||
|
|
+ sizey = <&iqs550>,"touchscreen-size-y:0";
|
||
|
|
+ invx = <&iqs550>,"touchscreen-inverted-x?";
|
||
|
|
+ invy = <&iqs550>,"touchscreen-inverted-y?";
|
||
|
|
+ swapxy = <&iqs550>,"touchscreen-swapped-x-y?";
|
||
|
|
+ };
|
||
|
|
+};
|