From: Shashank Maurya <shashank.maurya@oss.qualcomm.com>
To: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Florian Fainelli <florian.fainelli@broadcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@broadcom.com>,
Marek Vasut <marek.vasut+renesas@mailbox.org>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
venkata.valluru@oss.qualcomm.com,
Jessica Zhang <jesszhan0024@gmail.com>,
Shashank Maurya <shashank.maurya@oss.qualcomm.com>
Subject: [PATCH v3 1/2] dt-bindings: regulator: rpi-panel-v2: Add vcc-supply property
Date: Tue, 22 Sep 2026 21:01:59 +0530 [thread overview]
Message-ID: <20260922-rpi_reg-v3-1-9214321c4070@oss.qualcomm.com> (raw)
In-Reply-To: <20260922-rpi_reg-v3-0-9214321c4070@oss.qualcomm.com>
Add an optional vcc-supply property to the Raspberry Pi 7" touchscreen
panel V2 regulator binding. The panel controller MCU is powered from an
external power rail, which has to be supplied before any I2C
communication can take place.
The property is optional so that existing device trees which do not
describe the supply remain valid.
Signed-off-by: Shashank Maurya <shashank.maurya@oss.qualcomm.com>
---
.../regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml
index 37b9ed371b67..3e2cbcad6490 100644
--- a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml
+++ b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml
@@ -35,6 +35,9 @@ properties:
const: 3
description: See ../../pwm/pwm.yaml for description of the cell formats.
+ vcc-supply:
+ description: Regulator supplying power to the panel controller.
+
additionalProperties: false
required:
@@ -55,6 +58,7 @@ examples:
gpio-controller;
#gpio-cells = <2>;
#pwm-cells = <3>;
+ vcc-supply = <&vcc_reg>;
};
};
--
2.34.1
next prev parent reply other threads:[~2026-09-22 15:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-22 15:31 [PATCH v3 0/2] regulator: rpi-panel-v2: Add vcc-supply Shashank Maurya
2026-09-22 15:31 ` Shashank Maurya [this message]
2026-09-28 9:35 ` [PATCH v3 1/2] dt-bindings: regulator: rpi-panel-v2: Add vcc-supply property Krzysztof Kozlowski
2026-09-22 15:32 ` [PATCH v3 2/2] regulator: rpi-panel-v2: Add vcc-supply support Shashank Maurya
2026-09-22 15:39 ` sashiko-bot
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