linux-kernel - [PATCH v2] dt-bindings: raspberrypi,bcm2835-firmware: Add 'power' and gpio-hog nodes

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Message-ID: <20251215213513.3331128-2-robh@kernel.org>
Date: Mon, 15 Dec 2025 15:35:14 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Ray Jui <rjui@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Eric Anholt <eric@...olt.net>,
	Stefan Wahren <wahrenst@....net>
Cc: devicetree@...r.kernel.org,
	linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] dt-bindings: raspberrypi,bcm2835-firmware: Add 'power' and gpio-hog nodes

Add missing child nodes for the RaspberryPi firmware. The firmware
implements a power domain provider in a 'power' node. GPIO hog nodes are
also already in use.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
v2:
 - The error in the hog pattern was from my own bad addition, so fix the 
   patch to add gpio hog nodes.

 .../bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
index 8349c0a854d9..983ea80eaec9 100644
--- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
@@ -65,6 +65,11 @@ properties:
       gpio-line-names:
         minItems: 8
 
+    patternProperties:
+      '-hog$':
+        required:
+          - gpio-hog
+
     required:
       - compatible
       - gpio-controller
@@ -87,6 +92,9 @@ properties:
       - compatible
       - "#reset-cells"
 
+  power:
+    $ref: /schemas/power/raspberrypi,bcm2835-power.yaml#
+
   pwm:
     type: object
     additionalProperties: false
-- 
2.51.0