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