dt-bindings: Add cros-ec Type C port driver
Some Chrome OS devices with Embedded Controllers (EC) can read and modify Type C port state. Add an entry in the DT Bindings documentation that lists out the logical device and describes the relevant port information, to be used by the corresponding driver. Signed-off-by: Prashant Malani <pmalani@chromium.org> Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Rob Herring <robh@kernel.org>
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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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$id: http://devicetree.org/schemas/chrome/google,cros-ec-typec.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Google Chrome OS EC(Embedded Controller) Type C port driver.
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maintainers:
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- Benson Leung <bleung@chromium.org>
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- Prashant Malani <pmalani@chromium.org>
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description:
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Chrome OS devices have an Embedded Controller(EC) which has access to
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Type C port state. This node is intended to allow the host to read and
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control the Type C ports. The node for this device should be under a
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cros-ec node like google,cros-ec-spi.
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properties:
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compatible:
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const: google,cros-ec-typec
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connector:
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$ref: /schemas/connector/usb-connector.yaml#
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required:
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- compatible
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examples:
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- |+
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spi0 {
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#address-cells = <1>;
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#size-cells = <0>;
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cros_ec: ec@0 {
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compatible = "google,cros-ec-spi";
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reg = <0>;
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typec {
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compatible = "google,cros-ec-typec";
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#address-cells = <1>;
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#size-cells = <0>;
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connector@0 {
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compatible = "usb-c-connector";
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reg = <0>;
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power-role = "dual";
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data-role = "dual";
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try-power-role = "source";
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};
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};
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};
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};
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