Add a binding documentation for the TI TSC2046 touchscreen controllers ADC functionality. Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> --- .../bindings/iio/adc/ti,tsc2046.yaml | 115 ++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml b/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml new file mode 100644 index 000000000000..4f705dc0f639 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml @@ -0,0 +1,115 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,tsc2046.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments TSC2046 touch screen controller. + +maintainers: + - Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> + +description: | + TSC2046 is a touch screen controller with 8 channels ADC. + +properties: + compatible: + enum: + - ti,tsc2046e-adc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + spi-max-frequency: true + + "#io-channel-cells": + const: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +required: + - compatible + - reg + +patternProperties: + "^channel@[0-7]$": + $ref: "adc.yaml" + type: object + + properties: + reg: + description: | + The channel number. It can have up to 8 channels + items: + minimum: 0 + maximum: 7 + + settling-time-us: true + average-samples: true + + required: + - reg + + additionalProperties: false + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "ti,tsc2046e-adc"; + reg = <0>; + spi-max-frequency = <1000000>; + interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>; + #io-channel-cells = <1>; + + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0>; + }; + channel@1 { + reg = <1>; + settling-time-us = <700>; + average-samples = <5>; + }; + channel@2 { + reg = <2>; + }; + channel@3 { + reg = <3>; + settling-time-us = <700>; + average-samples = <5>; + }; + channel@4 { + reg = <4>; + settling-time-us = <700>; + average-samples = <5>; + }; + channel@5 { + reg = <5>; + settling-time-us = <700>; + average-samples = <5>; + }; + channel@6 { + reg = <6>; + }; + channel@7 { + reg = <7>; + }; + }; + }; +... -- 2.29.2
