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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/touchscreen/ti,tsc2005.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments TSC2004 and TSC2005 touchscreen controller
maintainers:
- Marek Vasut <marex@denx.de>
- Michael Welling <mwelling@ieee.org>
properties:
$nodename:
pattern: "^touchscreen(@.*)?$"
compatible:
enum:
- ti,tsc2004
- ti,tsc2005
reg:
maxItems: 1
description: |
I2C address when used on the I2C bus, or the SPI chip select index
when used on the SPI bus
interrupts:
maxItems: 1
reset-gpios:
maxItems: 1
description: GPIO specifier for the controller reset line
spi-max-frequency:
description: TSC2005 SPI bus clock frequency.
maximum: 25000000
ti,x-plate-ohms:
description: resistance of the touchscreen's X plates in ohm (defaults to 280)
ti,esd-recovery-timeout-ms:
description: |
if the touchscreen does not respond after the configured time
(in milli seconds), the driver will reset it. This is disabled
by default.
vio-supply:
description: Regulator specifier
touchscreen-fuzz-pressure: true
touchscreen-fuzz-x: true
touchscreen-fuzz-y: true
touchscreen-max-pressure: true
touchscreen-size-x: true
touchscreen-size-y: true
allOf:
- $ref: touchscreen.yaml#
- if:
properties:
compatible:
contains:
const: ti,tsc2004
then:
properties:
spi-max-frequency: false
additionalProperties: false
required:
- compatible
- reg
- interrupts
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
touchscreen@48 {
compatible = "ti,tsc2004";
reg = <0x48>;
vio-supply = <&vio>;
reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
interrupts-extended = <&gpio1 27 IRQ_TYPE_EDGE_RISING>;
touchscreen-fuzz-x = <4>;
touchscreen-fuzz-y = <7>;
touchscreen-fuzz-pressure = <2>;
touchscreen-size-x = <4096>;
touchscreen-size-y = <4096>;
touchscreen-max-pressure = <2048>;
ti,x-plate-ohms = <280>;
ti,esd-recovery-timeout-ms = <8000>;
};
};
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
touchscreen@0 {
compatible = "ti,tsc2005";
spi-max-frequency = <6000000>;
reg = <0>;
vio-supply = <&vio>;
reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* 104 */
interrupts-extended = <&gpio4 4 IRQ_TYPE_EDGE_RISING>; /* 100 */
touchscreen-fuzz-x = <4>;
touchscreen-fuzz-y = <7>;
touchscreen-fuzz-pressure = <2>;
touchscreen-size-x = <4096>;
touchscreen-size-y = <4096>;
touchscreen-max-pressure = <2048>;
ti,x-plate-ohms = <280>;
ti,esd-recovery-timeout-ms = <8000>;
};
};
|
