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