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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
dt-bindings: input: document Goodix Berlin Touchscreen IC
Document the Goodix GT9916 wich is part of the "Berlin" serie
of Touchscreen controllers IC from Goodix.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240129-topic-goodix-berlin-upstream-initial-v15-1-6f7d096c0a0a@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
authored by
Neil Armstrong
and committed by
Dmitry Torokhov
9c81ef43
55067a49
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Documentation/devicetree/bindings/input/touchscreen/goodix,gt9916.yaml
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Documentation/devicetree/bindings/input/touchscreen/goodix,gt9916.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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$id: http://devicetree.org/schemas/input/touchscreen/goodix,gt9916.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Goodix Berlin series touchscreen controller
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description: The Goodix Berlin series of touchscreen controllers
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be connected to either I2C or SPI buses.
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maintainers:
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- Neil Armstrong <neil.armstrong@linaro.org>
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allOf:
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- $ref: touchscreen.yaml#
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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properties:
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compatible:
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enum:
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- goodix,gt9916
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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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reset-gpios:
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maxItems: 1
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avdd-supply:
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description: Analog power supply regulator on AVDD pin
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vddio-supply:
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description: power supply regulator on VDDIO pin
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spi-max-frequency: true
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touchscreen-inverted-x: true
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touchscreen-inverted-y: true
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touchscreen-size-x: true
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touchscreen-size-y: true
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touchscreen-swapped-x-y: true
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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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- avdd-supply
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- touchscreen-size-x
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- touchscreen-size-y
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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@5d {
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compatible = "goodix,gt9916";
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reg = <0x5d>;
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interrupt-parent = <&gpio>;
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interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
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reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
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avdd-supply = <&ts_avdd>;
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touchscreen-size-x = <1024>;
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touchscreen-size-y = <768>;
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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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num-cs = <1>;
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cs-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
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touchscreen@0 {
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compatible = "goodix,gt9916";
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reg = <0>;
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interrupt-parent = <&gpio>;
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interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
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reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
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avdd-supply = <&ts_avdd>;
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spi-max-frequency = <1000000>;
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touchscreen-size-x = <1024>;
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touchscreen-size-y = <768>;
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};
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};
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...