linux-kernel - [PATCH v3 1/6] dt-bindings: connector: add power-opmode optional property to usb-connector

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Message-ID: <20200924090049.9041-2-amelie.delaunay@st.com>
Date:   Thu, 24 Sep 2020 11:00:44 +0200
From:   Amelie Delaunay <amelie.delaunay@...com>
To:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Russell King <linux@...linux.org.uk>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Amelie Delaunay <amelie.delaunay@...com>,
        Fabrice Gasnier <fabrice.gasnier@...com>
Subject: [PATCH v3 1/6] dt-bindings: connector: add power-opmode optional property to usb-connector

Power operation mode may depends on hardware design, so, add the optional
property power-opmode for usb-c connector to select the power operation
mode capability.

Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
---
Changes in v3:
- Remove usb_power_delivery from possible operation current values.
  power-opmode should be used in case of no power delivery support.
Changes in v2:
- Add description for possible operation current values
---
 .../bindings/connector/usb-connector.yaml      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 9bd52e63c935..fdf89ca54858 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -88,6 +88,24 @@ properties:
       - device
       - dual
 
+  power-opmode:
+    description: Determines the power operation mode that the Type C connector
+      will support and will advertise through CC pins when it has no power
+      delivery support.
+      - "default" corresponds to default USB voltage and current defined by the
+        USB 2.0 and USB 3.2 specifications, 5V 500mA for USB 2.0 ports and
+        5V 900mA or 1500mA for USB 3.2 ports in single-lane or dual-lane
+        operation respectively.
+      - "1.5A" and "3.0A", 5V 1.5A and 5V 3.0A respectively, as defined in USB
+        Type-C Cable and Connector specification, when Power Delivery is not
+        supported.
+    allOf:
+      - $ref: /schemas/types.yaml#definitions/string
+    enum:
+      - default
+      - 1.5A
+      - 3.0A
+
   # The following are optional properties for "usb-c-connector" with power
   # delivery support.
   source-pdos:
-- 
2.17.1