[PATCH 1/5] dt-bindings: connector: add fixed-batteries property

Amit Sunil Dhamne via B4 Relay
2025-03-12T23:43:20Z

From: Amit Sunil Dhamne <amitsd@google.com>

Add a new "fixed-batteries" DT property to connector class. This
property is populated with nodes associated with battery type power
supplies powering the USB PD connector. This is needed by the Type-C
Port Manager (TCPM) to query psy properties which are used to feed
Battery_Status & Battery_Capacity AMS.

Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
---
Documentation/devicetree/bindings/connector/usb-connector.yaml | 8 ++++++++
Documentation/devicetree/bindings/usb/maxim,max33359.yaml | 1 +
2 files changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 11e40d225b9f3a0d0aeea7bf764f1c00a719d615..5e15bc060f5a2cfce842f83de738f1e8bae3ce2d 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -300,6 +300,14 @@ properties:
$ref: /schemas/types.yaml#/definitions/uint8-array
maxItems: 4

+ fixed-batteries:
+ description: Contains references to nodes associated with battery type power
+ supplies powering the USB PD device. These batteries are fixed type and
+ not hot swappable.
+ minItems: 1
+ maxItems: 4
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
dependencies:
sink-vdos-v1: [ sink-vdos ]
sink-vdos: [ sink-vdos-v1 ]
diff --git a/Documentation/devicetree/bindings/usb/maxim,max33359.yaml b/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
index 3de4dc40b79192b60443421b557bd2fb18683bf7..66c99f0131f074f1c08e31d7481f555647e3b2f8 100644
--- a/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
+++ b/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
@@ -75,6 +75,7 @@ examples:
PDO_FIXED(9000, 2000, 0)>;
sink-bc12-completion-time-ms = <500>;
pd-revision = /bits/ 8 <0x03 0x01 0x01 0x08>;
+ fixed-batteries = <&batt1 &batt2>;
};
};
};

--
2.49.0.rc0.332.g42c0ae87b1-goog