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Message-ID: <20240819223834.2049862-12-swboyd@chromium.org>
Date: Mon, 19 Aug 2024 15:38:25 -0700
From: Stephen Boyd <swboyd@...omium.org>
To: chrome-platform@...ts.linux.dev
Cc: linux-kernel@...r.kernel.org,
patches@...ts.linux.dev,
devicetree@...r.kernel.org,
Douglas Anderson <dianders@...omium.org>,
Pin-yen Lin <treapking@...omium.org>,
Andrzej Hajda <andrzej.hajda@...el.com>,
Benson Leung <bleung@...omium.org>,
Conor Dooley <conor+dt@...nel.org>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...il.com>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
dri-devel@...ts.freedesktop.org,
Guenter Roeck <groeck@...omium.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Jonas Karlman <jonas@...boo.se>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Lee Jones <lee@...nel.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Neil Armstrong <neil.armstrong@...aro.org>,
Prashant Malani <pmalani@...omium.org>,
Robert Foss <rfoss@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Tzung-Bi Shih <tzungbi@...nel.org>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Daniel Scally <djrscally@...il.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Ivan Orlov <ivan.orlov0322@...il.com>,
linux-acpi@...r.kernel.org,
linux-usb@...r.kernel.org,
Mika Westerberg <mika.westerberg@...ux.intel.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Vinod Koul <vkoul@...nel.org>
Subject: [PATCH v3 11/17] dt-bindings: usb-switch: Extract endpoints to defs
Move the usb-switch endpoint bindings to defs so that they can be reused
by other bindings. Future users of this binding will have more than one
type-c output node when they're muxing a single DP signal to more than
one usb-c-connector. Add an example to show how this binding can be used
and accelerate binding checks.
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Benson Leung <bleung@...omium.org>
Cc: Guenter Roeck <groeck@...omium.org>
Cc: Prashant Malani <pmalani@...omium.org>
Cc: Tzung-Bi Shih <tzungbi@...nel.org>
Cc: <devicetree@...r.kernel.org>
Cc: <chrome-platform@...ts.linux.dev>
Cc: Pin-yen Lin <treapking@...omium.org>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---
.../devicetree/bindings/usb/usb-switch.yaml | 74 ++++++++++++++++---
1 file changed, 62 insertions(+), 12 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/usb-switch.yaml b/Documentation/devicetree/bindings/usb/usb-switch.yaml
index da76118e73a5..5fc031b56fad 100644
--- a/Documentation/devicetree/bindings/usb/usb-switch.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-switch.yaml
@@ -35,9 +35,13 @@ properties:
$ref: /schemas/graph.yaml#/properties/ports
properties:
port@0:
- $ref: /schemas/graph.yaml#/properties/port
- description:
- Super Speed (SS) Output endpoint to the Type-C connector
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+
+ properties:
+ endpoint:
+ $ref: '#/$defs/usbc-out-endpoint'
+ unevaluatedProperties: false
port@1:
$ref: /schemas/graph.yaml#/$defs/port-base
@@ -47,16 +51,8 @@ properties:
properties:
endpoint:
- $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ $ref: '#/$defs/usbc-in-endpoint'
unevaluatedProperties: false
- properties:
- data-lanes:
- $ref: /schemas/types.yaml#/definitions/uint32-array
- minItems: 1
- maxItems: 8
- uniqueItems: true
- items:
- maximum: 8
oneOf:
- required:
@@ -65,3 +61,57 @@ oneOf:
- ports
additionalProperties: true
+
+$defs:
+ usbc-out-endpoint:
+ $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ description: Super Speed (SS) output endpoint to a type-c connector
+ unevaluatedProperties: false
+
+ usbc-in-endpoint:
+ $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ description: Super Speed (SS) input endpoint from the Super Speed PHY
+ unevaluatedProperties: false
+ properties:
+ data-lanes:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 8
+ uniqueItems: true
+ items:
+ maximum: 8
+
+examples:
+ # A USB orientation switch which flips the pin orientation
+ # for a usb-c-connector node.
+ - |
+ device {
+ orientation-switch;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ endpoint {
+ remote-endpoint = <&usb_c_connector>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ endpoint {
+ remote-endpoint = <&usb_ss_phy>;
+ };
+ };
+ };
+ };
+
+...
--
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