linux-brain/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
Dmitry Torokhov 97c6261433 ARM: ux500: improve BU21013 touchpad bindings
In preparation to update to bu21013_tp driver properly annotate GPIOs
property (the INT GPIOs are active low, not open drain), and also define
interrupt lines so we do not have to have special conversion in the driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-21 14:40:32 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2012 ST-Ericsson AB
*
* Device Tree for the HREF version 60 or later with the ST UIB
*/
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "ste-hrefv60plus.dtsi"
#include "ste-href-stuib.dtsi"
/ {
model = "ST-Ericsson HREF (v60+) and ST UIB";
compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
/* This stablilizes the serial port enumeration */
aliases {
serial0 = &ux500_serial0;
serial1 = &ux500_serial1;
serial2 = &ux500_serial2;
};
soc {
/* Reset line for the BU21013 touchscreen */
i2c@80110000 {
/* Only one of these will be used */
bu21013_tp@5c {
interrupt-parent = <&gpio2>;
interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
touch-gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
reset-gpios = <&gpio4 17 GPIO_LINE_OPEN_DRAIN>;
};
bu21013_tp@5d {
interrupt-parent = <&gpio2>;
interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
touch-gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
reset-gpios = <&gpio4 17 GPIO_LINE_OPEN_DRAIN>;
};
};
};
};