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The tsc2007 can be used not only as resistive touchscreen controller but also as a ADC IIO sensor. The second use case requires '#io-channel-cells' property, hence add it. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260122193549.29858-2-clamor95@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
81 lines
1.8 KiB
YAML
81 lines
1.8 KiB
YAML
# 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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pendown-gpio: true
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wakeup-source: 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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"#io-channel-cells":
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const: 1
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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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};
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