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From 9ee66e1acf33fd1dcf4beb8a6fce4fdade01ab05 Mon Sep 17 00:00:00 2001
From: Samuel Hsu <hsu@distec.de>
Date: Mon, 8 Apr 2019 16:49:51 +0200
Subject: [PATCH] Input: ili210x - add DT binding document
commit 41a852e002e65ab7a1e6841b485d72d022e95df2 upstream
Add DT binding document for the Ilitek ILI210x and ILI251x
touchscreen controllers.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
.../bindings/input/ilitek,ili2xxx.txt | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/ilitek,ili2xxx.txt
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ilitek,ili2xxx.txt
@@ -0,0 +1,26 @@
+Ilitek ILI210x/ILI251x touchscreen controller
+
+Required properties:
+- compatible:
+ ilitek,ili210x for ILI210x
+ ilitek,ili251x for ILI251x
+
+- reg: The I2C address of the device
+
+- interrupts: The sink for the touchscreen's IRQ output
+ See ../interrupt-controller/interrupts.txt
+
+Optional properties for main touchpad device:
+
+- reset-gpios: GPIO specifier for the touchscreen's reset pin (active low)
+
+Example:
+
+ touchscreen@41 {
+ compatible = "ilitek,ili251x";
+ reg = <0x41>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpio5 21 GPIO_ACTIVE_LOW>;
+ };
+
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