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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250312-batt_ops-v1-1-88e0bb3129fd@google.com>
Date: Wed, 12 Mar 2025 16:42:01 -0700
From: Amit Sunil Dhamne via B4 Relay <devnull+amitsd.google.com@...nel.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Badhri Jagan Sridharan <badhri@...gle.com>, 
 Sebastian Reichel <sre@...nel.org>, 
 Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <len.brown@...el.com>, 
 Pavel Machek <pavel@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-usb@...r.kernel.org, linux-pm@...r.kernel.org, 
 RD Babiera <rdbabiera@...gle.com>, Kyle Tso <kyletso@...gle.com>, 
 Amit Sunil Dhamne <amitsd@...gle.com>
Subject: [PATCH 1/5] dt-bindings: connector: add fixed-batteries property

From: Amit Sunil Dhamne <amitsd@...gle.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@...gle.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