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The HiDeep touchscreen device is a capacitive multi-touch controller mainly for multi-touch supported devices use. It use I2C interface for communication to IC and provide axis X, Y, Z locations for ten finger touch through input event interface to userspace. It support the Crimson and the Lime two type IC. They are different the number of channel supported and FW size. But the working protocol is same. Signed-off-by: Anthony Kim <anthony.kim@hideep.com> Acked-by: Rob Herring <robh+dt@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
* HiDeep Finger and Stylus touchscreen controller
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Required properties:
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- compatible : must be "hideep,hideep-ts"
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- reg : I2C slave address, (e.g. 0x6C).
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- interrupt-parent : Interrupt controller to which the chip is connected.
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- interrupts : Interrupt to which the chip is connected.
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Optional properties:
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- vdd-supply : It is the controller supply for controlling
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main voltage(3.3V) through the regulator.
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- vid-supply : It is the controller supply for controlling
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IO voltage(1.8V) through the regulator.
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- reset-gpios : Define for reset gpio pin.
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It is to use for reset IC.
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- touchscreen-size-x : X axis size of touchscreen
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- touchscreen-size-y : Y axis size of touchscreen
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- linux,keycodes : Specifies an array of numeric keycode values to
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be used for reporting button presses. The array can
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contain up to 3 entries.
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Example:
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#include "dt-bindings/input/input.h"
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i2c@00000000 {
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/* ... */
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touchscreen@6c {
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compatible = "hideep,hideep-ts";
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reg = <0x6c>;
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interrupt-parent = <&gpx1>;
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interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
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vdd-supply = <&ldo15_reg>";
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vid-supply = <&ldo18_reg>;
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reset-gpios = <&gpx1 5 0>;
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touchscreen-size-x = <1080>;
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touchscreen-size-y = <1920>;
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linux,keycodes = <KEY_HOME>, <KEY_MENU>, <KEY_BACK>;
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};
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};
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