6f18ce8026
Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").
Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
84 lines
1.9 KiB
YAML
84 lines
1.9 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/hid-over-i2c.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: HID over I2C Devices
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maintainers:
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- Benjamin Tissoires <benjamin.tissoires@redhat.com>
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- Jiri Kosina <jkosina@suse.cz>
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description: |+
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HID over I2C provides support for various Human Interface Devices over the
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I2C bus. These devices can be for example touchpads, keyboards, touch screens
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or sensors.
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The specification has been written by Microsoft and is currently available here:
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https://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
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If this binding is used, the kernel module i2c-hid will handle the communication
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with the device and the generic hid core layer will handle the protocol.
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allOf:
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- $ref: /schemas/input/touchscreen/touchscreen.yaml#
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- wacom,w9013
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- const: hid-over-i2c
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- description: Just "hid-over-i2c" alone is allowed, but not recommended.
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const: hid-over-i2c
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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hid-descr-addr:
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description: HID descriptor address
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$ref: /schemas/types.yaml#/definitions/uint32
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post-power-on-delay-ms:
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description: Time required by the device after enabling its regulators
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or powering it on, before it is ready for communication.
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touchscreen-inverted-x: true
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touchscreen-inverted-y: true
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vdd-supply:
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description: 3.3V supply
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vddl-supply:
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description: 1.8V supply
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wakeup-source: true
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required:
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- compatible
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- reg
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- interrupts
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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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hid@2c {
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compatible = "hid-over-i2c";
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reg = <0x2c>;
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hid-descr-addr = <0x0020>;
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interrupts = <3 2>;
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};
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};
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...
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