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dt-bindings: input: touchscreen: convert tsc2007.txt to yaml format
Convert tsc2007.txt to yaml format.
Additional changes:
- add pendown-gpio property to match existed dts.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250529193241.793678-1-Frank.Li@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
authored by
Frank Li
and committed by
Dmitry Torokhov
45601c66
54e626d0
+75
-39
+75
Documentation/devicetree/bindings/input/touchscreen/ti.tsc2007.yaml
+75
Documentation/devicetree/bindings/input/touchscreen/ti.tsc2007.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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$id: http://devicetree.org/schemas/input/touchscreen/ti.tsc2007.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments tsc2007 touchscreen controller
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maintainers:
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- Frank Li <Frank.Li@nxp.com>
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properties:
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compatible:
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const: ti,tsc2007
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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ti,x-plate-ohms:
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description: X-plate resistance in ohms.
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gpios: true
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+
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pendown-gpio: true
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ti,max-rt:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: maximum pressure.
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ti,fuzzx:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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specifies the absolute input fuzz x value.
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If set, it will permit noise in the data up to +- the value given to the fuzz
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parameter, that is used to filter noise from the event stream.
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ti,fuzzy:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: specifies the absolute input fuzz y value.
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ti,fuzzz:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: specifies the absolute input fuzz z value.
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ti,poll-period:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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how much time to wait (in milliseconds) before reading again the
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values from the tsc2007.
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required:
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- compatible
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- reg
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- ti,x-plate-ohms
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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touch@49 {
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compatible = "ti,tsc2007";
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reg = <0x49>;
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interrupt-parent = <&gpio4>;
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interrupts = <0x0 0x8>;
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gpios = <&gpio4 0 0>;
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ti,x-plate-ohms = <180>;
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};
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};
-39
Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt
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Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt
···
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* Texas Instruments tsc2007 touchscreen controller
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Required properties:
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- compatible: must be "ti,tsc2007".
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- reg: I2C address of the chip.
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- ti,x-plate-ohms: X-plate resistance in ohms.
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Optional properties:
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- gpios: the interrupt gpio the chip is connected to (through the penirq pin).
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The penirq pin goes to low when the panel is touched.
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(see GPIO binding[1] for more details).
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- interrupts: (gpio) interrupt to which the chip is connected
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(see interrupt binding[0]).
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- ti,max-rt: maximum pressure.
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- ti,fuzzx: specifies the absolute input fuzz x value.
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If set, it will permit noise in the data up to +- the value given to the fuzz
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parameter, that is used to filter noise from the event stream.
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- ti,fuzzy: specifies the absolute input fuzz y value.
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- ti,fuzzz: specifies the absolute input fuzz z value.
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- ti,poll-period: how much time to wait (in milliseconds) before reading again the
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values from the tsc2007.
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[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
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[1]: Documentation/devicetree/bindings/gpio/gpio.txt
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Example:
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&i2c1 {
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/* ... */
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tsc2007@49 {
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compatible = "ti,tsc2007";
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reg = <0x49>;
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interrupt-parent = <&gpio4>;
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interrupts = <0x0 0x8>;
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gpios = <&gpio4 0 0>;
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ti,x-plate-ohms = <180>;
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};
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/* ... */
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};