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Subject[PATCH v2 1/4] dt-bindings: Add cros-ec Type C port driver
Date
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>
---

Changes in v2:
- No changes. Patch first introduced in v2 of series.

.../bindings/chrome/google,cros-ec-typec.yaml | 77 +++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml

diff --git a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
new file mode 100644
index 00000000000000..46ebcbe76db3c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/chrome/google,cros-ec-typec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google Chrome OS EC(Embedded Controller) Type C port driver.
+
+maintainers:
+ - Benson Leung <bleung@chromium.org>
+ - Prashant Malani <pmalani@chromium.org>
+
+description:
+ Chrome OS devices have an Embedded Controller(EC) which has access to
+ Type C port state. This node is intended to allow the host to read and
+ control the Type C ports. The node for this device should be under a
+ cros-ec node like google,cros-ec-spi.
+
+properties:
+ compatible:
+ const: google,cros-ec-typec
+
+ port:
+ description: A node that represents a physical Type C port on the
+ device.
+ type: object
+ properties:
+ port-number:
+ description: The number used by the Chrome OS EC to identify
+ this type C port.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ power-role:
+ description: Determines the power role that the Type C port will
+ adopt.
+ oneOf:
+ - items:
+ - const: sink
+ - const: source
+ - const: dual
+ data-role:
+ description: Determines the data role that the Type C port will
+ adopt.
+ oneOf:
+ - items:
+ - const: host
+ - const: device
+ - const: dual
+ try-power-role:
+ description: Determines the preferred power role of the Type C port.
+ oneOf:
+ - items:
+ - const: sink
+ - const: source
+ - const: dual
+
+ required:
+ - port-number
+ - power-role
+ - data-role
+ - try-power-role
+
+required:
+ - compatible
+ - port
+
+examples:
+ - |+
+ typec {
+ compatible = "google,cros-ec-typec";
+
+ port@0 {
+ port-number = <0>;
+ power-role = "dual";
+ data-role = "dual";
+ try-power-role = "source";
+ };
+ };
--
2.25.0.341.g760bfbb309-goog
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