linux-kernel - [PATCH v1 1/2] dt-bindings: can: microchip,mcp251xfd: allow gpio-hog child nodes

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Message-Id: <20260108125200.2803112-2-viken.dadhaniya@oss.qualcomm.com>
Date: Thu,  8 Jan 2026 18:21:59 +0530
From: Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>
To: mkl@...gutronix.de, mani@...nel.org, thomas.kopp@...rochip.com,
        mailhol@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, andersson@...nel.org, konradybcio@...nel.org,
        linux-can@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Cc: mukesh.savaliya@....qualcomm.com, anup.kulkarni@....qualcomm.com,
        Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>
Subject: [PATCH v1 1/2] dt-bindings: can: microchip,mcp251xfd: allow gpio-hog child nodes

The MCP251XFD can expose two pins as GPIOs. The binding already declares
gpio-controller and #gpio-cells for the device. Whitelist GPIO hog child
nodes using patternProperties so boards can set default GPIO states at
boot via DT, consistent with other GPIO controllers
(e.g. microchip,mpfs-gpio).

Signed-off-by: Viken Dadhaniya <viken.dadhaniya@....qualcomm.com>
---
 .../devicetree/bindings/net/can/microchip,mcp251xfd.yaml    | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml b/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml
index 2d13638ebc6a..49d6f6bbe193 100644
--- a/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml
@@ -54,6 +54,12 @@ properties:
   "#gpio-cells":
     const: 2
 
+patternProperties:
+  "^.+-hog(-[0-9]+)?$":
+    type: object
+    required:
+      - gpio-hog
+
 required:
   - compatible
   - reg
-- 
2.34.1