74 lines
2.2 KiB
Diff
74 lines
2.2 KiB
Diff
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diff --git a/Documentation/devicetree/bindings/extcon/extcon-usbc-virtual-pd.yaml b/Documentation/devicetree/bindings/extcon/extcon-usbc-virtual-pd.yaml
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new file mode 100644
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index 000000000000..8110fbe2ddc2
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/extcon/extcon-usbc-virtual-pd.yaml
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@@ -0,0 +1,66 @@
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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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+$id: http://devicetree.org/schemas/extcon/extcon-usbc-virtual-pd.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Type-C Virtual PD extcon
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+
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+maintainers:
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+ - Jagan Teki <jagan@amarulasolutions.com>
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+
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+description: |
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+ USB Type-C protocol supports various modes of operations includes PD,
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+ USB3, and Altmode. If the platform design supports a Type-C connector
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+ then configuring these modes can be done via enumeration.
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+
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+ However, there are some platforms that design these modes as separate
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+ protocol connectors like design Display Port from on-chip USB3 controller.
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+ So we can access Type-C Altmode Display Port via onboard Display Port
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+ connector instead of a Type-C connector. These kinds of platforms require
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+ an explicit extcon driver in order to handle Power Delivery and
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+ Port Detection.
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+
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+properties:
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+ compatible:
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+ const: linux,extcon-usbc-virtual-pd
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+
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+ det-gpios:
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+ description: Detect GPIO pin. Pin can be Display Port Detect or USB ID.
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+ maxItems: 1
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+
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+ vpd-polarity:
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+ description: USB Type-C Polarity. false for Normal and true for Flip.
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+ type: boolean
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+
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+ vpd-super-speed:
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+ description: USB Super Speed. false for USB2 and true for USB3.
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+ type: boolean
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+
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+ vpd-data-role:
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+ description: USB Data roles for Virtual Type-C.
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+ $ref: /schemas/types.yaml#definitions/string
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+
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+ enum:
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+ - host
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+ - device
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+ - display-port
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+
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+required:
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+ - compatible
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+ - det-gpios
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+ - vpd-data-role
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+
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+additionalProperties: false
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+
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+examples:
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+ - |
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+ #include <dt-bindings/gpio/gpio.h>
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+ #include <dt-bindings/pinctrl/rockchip.h>
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+
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+ virtual_pd: virtual-pd {
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+ compatible = "linux,extcon-usbc-virtual-pd";
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+ det-gpios = <&gpio4 RK_PD1 GPIO_ACTIVE_LOW>;
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+ vpd-data-role = "display-port";
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+ vpd-super-speed;
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+ };
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