Commit 8f445ffa authored by Michael Srba's avatar Michael Srba Committed by Dmitry Torokhov
Browse files

dt-bindings: input/touchscreen: add bindings for zinitix



This patch adds dts bindings for the zinitix bt541 touchscreen.

Signed-off-by: default avatarMichael Srba <Michael.Srba@seznam.cz>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201001122949.16846-2-michael.srba@seznam.cz


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 2c2b364f
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Device tree bindings for Zinitx BT541 touchscreen controller

Required properties:

 - compatible		: Should be "zinitix,bt541"
 - reg			: I2C address of the chip. Should be 0x20
 - interrupts		: Interrupt to which the chip is connected

Optional properties:

 - vdd-supply		: Analog power supply regulator on VCCA pin
 - vddo-supply		: Digital power supply regulator on VDD pin
 - zinitix,mode		: Mode of reporting touch points. Some modes may not work
			  with a particular ts firmware for unknown reasons. Available
			  modes are 1 and 2. Mode 2 is the default and preferred.

The touchscreen-* properties are documented in touchscreen.txt in this
directory.

Example:

	i2c@00000000 {
		/* ... */

		bt541@20 {
			compatible = "zinitix,bt541";
			reg = <0x20>;
			interrupt-parent = <&msmgpio>;
			interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
			pinctrl-names = "default";
			pinctrl-0 = <&tsp_default>;
			vdd-supply = <&reg_vdd_tsp>;
			vddo-supply = <&pm8916_l6>;
			touchscreen-size-x = <540>;
			touchscreen-size-y = <960>;
			zinitix,mode = <2>;
		};

		/* ... */
	};
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@@ -1143,6 +1143,8 @@ patternProperties:
    description: Shenzhen Zidoo Technology Co., Ltd.
  "^zii,.*":
    description: Zodiac Inflight Innovations
  "^zinitix,.*":
    description: Zinitix Co., Ltd
  "^zte,.*":
    description: ZTE Corp.
  "^zyxel,.*":