linux-kernel - [PATCH] regulator: dt-bindings: rpi-panel: Mark 7" Raspberry Pi as GPIO controller

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Message-ID: <20260107213638.505319-1-marex@nabladev.com>
Date: Wed,  7 Jan 2026 22:36:25 +0100
From: Marek Vasut <marex@...ladev.com>
To: devicetree@...r.kernel.org
Cc: Marek Vasut <marex@...ladev.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-rpi-kernel@...ts.infradead.org
Subject: [PATCH] regulator: dt-bindings: rpi-panel: Mark 7" Raspberry Pi as GPIO controller

Mark the Raspberry Pi 7" Display 1 ATTINY based regulator
as GPIO controller, because the hardware behaves that way
in addition to being a regulator. Add fixed gpio-cells as
well.

Signed-off-by: Marek Vasut <marex@...ladev.com>
---
Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Florian Fainelli <florian.fainelli@...adcom.com>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-rpi-kernel@...ts.infradead.org
---
 .../raspberrypi,7inch-touchscreen-panel-regulator.yaml       | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
index 41678400e63fa..6c23f18a32c6c 100644
--- a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
@@ -24,6 +24,11 @@ properties:
   reg:
     maxItems: 1
 
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
 additionalProperties: false
 
 required:
-- 
2.51.0