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dt-bindings: input: TSC2007 bindings
Moving the bindings to yaml format and adding the common touchscreen.yaml properties. Old properties that are now covered via touchscreen.yaml have been removed and replaced by the relevant properties from touchscreen.yaml Signed-off-by: Timon Skerutsch <kernel@diodes-delight.com>
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Dec 14, 2023
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Documentation/devicetree/bindings/input/touchscreen/ti,tsc2007.yaml
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* Texas Instruments tsc2007 touchscreen controller | ||
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Required properties: | ||
- compatible: must be "ti,tsc2007". | ||
- reg: I2C address of the chip. | ||
- ti,x-plate-ohms: X-plate resistance in ohms. | ||
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Optional properties: | ||
- gpios: the interrupt gpio the chip is connected to (trough the penirq pin). | ||
The penirq pin goes to low when the panel is touched. | ||
(see GPIO binding[1] for more details). | ||
- interrupts: (gpio) interrupt to which the chip is connected | ||
(see interrupt binding[0]). | ||
- ti,max-rt: maximum pressure. | ||
- ti,fuzzx: specifies the absolute input fuzz x value. | ||
If set, it will permit noise in the data up to +- the value given to the fuzz | ||
parameter, that is used to filter noise from the event stream. | ||
- ti,fuzzy: specifies the absolute input fuzz y value. | ||
- ti,fuzzz: specifies the absolute input fuzz z value. | ||
- ti,poll-period: how much time to wait (in milliseconds) before reading again the | ||
values from the tsc2007. | ||
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[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt | ||
[1]: Documentation/devicetree/bindings/gpio/gpio.txt | ||
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Example: | ||
&i2c1 { | ||
/* ... */ | ||
tsc2007@49 { | ||
compatible = "ti,tsc2007"; | ||
reg = <0x49>; | ||
interrupt-parent = <&gpio4>; | ||
interrupts = <0x0 0x8>; | ||
gpios = <&gpio4 0 0>; | ||
ti,x-plate-ohms = <180>; | ||
}; | ||
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/* ... */ | ||
}; | ||
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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,tsc2007.yaml# | ||
$schema: http://devicetree.org/meta-schemas/core.yaml# | ||
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title: Texas Instruments TSC2007 touchscreen controller bindings | ||
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maintainers: | ||
- Timon Skerutsch <kernel@diodes-delight.com> | ||
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allOf: | ||
- $ref: touchscreen.yaml# | ||
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properties: | ||
compatible: | ||
enum: | ||
- ti,tsc2007 | ||
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reg: | ||
maxItems: 1 | ||
description: | | ||
I2C address of the chip. | ||
interrupts: | ||
maxItems: 1 | ||
description: | | ||
(gpio) interrupt to which the chip is connected | ||
gpios: | ||
maxItems: 1 | ||
description: the interrupt gpio the chip is connected to (trough the penirq pin). | ||
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ti,poll-period: how much time to wait (in milliseconds) before reading again | ||
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touchscreen-fuzz-pressure: true | ||
touchscreen-fuzz-x: true | ||
touchscreen-fuzz-y: true | ||
touchscreen-min-pressure: true | ||
touchscreen-max-pressure: true | ||
touchscreen-min-x: true | ||
touchscreen-size-x: true | ||
touchscreen-min-y: true | ||
touchscreen-size-y: true | ||
touchscreen-x-plate-ohms: true | ||
touchscreen-inverted-x: true | ||
touchscreen-inverted-y: true | ||
touchscreen-swapped-x-y: true | ||
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additionalProperties: false | ||
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required: | ||
- compatible | ||
- reg | ||
- touchscreen-x-plate-ohms | ||
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examples: | ||
- | | ||
tsc2007@48 { | ||
compatible = "ti,tsc2007"; | ||
reg = <0x48>; | ||
touchscreen-swapped-x-y; | ||
touchscreen-inverted-x; | ||
touchscreen-min-x = <350>; | ||
touchscreen-size-x = <3700>; | ||
touchscreen-fuzz-x = <4>; | ||
touchscreen-min-y = <320>; | ||
touchscreen-size-y = <3700>; | ||
touchscreen-fuzz-y = <4>; | ||
touchscreen-min-pressure = <1000>; | ||
touchscreen-max-pressure = <3700>; | ||
touchscreen-fuzz-pressure = <4>; | ||
touchscreen-x-plate-ohms = <180>; | ||
pinctrl-0 = <&tsc_int_pin>; | ||
interrupt-parent = <&gpio>; | ||
interrupts = <17 2>; | ||
gpios = <&gpio 17 1>; | ||
}; | ||
40 changes: 1 addition & 39 deletions
40
Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt
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* Texas Instruments tsc2007 touchscreen controller | ||
|
||
Required properties: | ||
- compatible: must be "ti,tsc2007". | ||
- reg: I2C address of the chip. | ||
- ti,x-plate-ohms: X-plate resistance in ohms. | ||
|
||
Optional properties: | ||
- gpios: the interrupt gpio the chip is connected to (trough the penirq pin). | ||
The penirq pin goes to low when the panel is touched. | ||
(see GPIO binding[1] for more details). | ||
- interrupts: (gpio) interrupt to which the chip is connected | ||
(see interrupt binding[0]). | ||
- ti,max-rt: maximum pressure. | ||
- ti,fuzzx: specifies the absolute input fuzz x value. | ||
If set, it will permit noise in the data up to +- the value given to the fuzz | ||
parameter, that is used to filter noise from the event stream. | ||
- ti,fuzzy: specifies the absolute input fuzz y value. | ||
- ti,fuzzz: specifies the absolute input fuzz z value. | ||
- ti,poll-period: how much time to wait (in milliseconds) before reading again the | ||
values from the tsc2007. | ||
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[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt | ||
[1]: Documentation/devicetree/bindings/gpio/gpio.txt | ||
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Example: | ||
&i2c1 { | ||
/* ... */ | ||
tsc2007@49 { | ||
compatible = "ti,tsc2007"; | ||
reg = <0x49>; | ||
interrupt-parent = <&gpio4>; | ||
interrupts = <0x0 0x8>; | ||
gpios = <&gpio4 0 0>; | ||
ti,x-plate-ohms = <180>; | ||
}; | ||
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/* ... */ | ||
}; | ||
see ti,tsc2007.yaml |