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Sun, 28 Jun 2026 16:00:46 -0700 (PDT) From: Rosen Penev To: devicetree@vger.kernel.org Cc: Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dennis Gilmore , linux-arm-kernel@lists.infradead.org (moderated list:ARM/Marvell Kirkwood and Armada 370, 375, 38x,...), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/4] ARM: dts: helios4: add vcc-supply to GPIO expander Date: Sun, 28 Jun 2026 16:00:40 -0700 Message-ID: <20260628230042.1204293-3-rosenp@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260628230042.1204293-1-rosenp@gmail.com> References: <20260628230042.1204293-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The pca953x driver requests a 'vcc' supply, producing: pca953x 0-0020: supply vcc not found, using dummy regulator The PCA9655 (PCA9555-compatible) expander is powered by the same always-on 3.3V rail as the other I2C devices on the bus. Add vcc-supply = <®_3p3v> to silence the warning. Fixes: ced8025b569e ("ARM: dts: armada388-helios4") Assisted-by: opencode:big-pickle Signed-off-by: Rosen Penev --- arch/arm/boot/dts/marvell/armada-388-helios4.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/marvell/armada-388-helios4.dts b/arch/arm/boot/dts/marvell/armada-388-helios4.dts index 05540b8012c2..cf0432a0e71a 100644 --- a/arch/arm/boot/dts/marvell/armada-388-helios4.dts +++ b/arch/arm/boot/dts/marvell/armada-388-helios4.dts @@ -169,6 +169,7 @@ expander0: gpio-expander@20 { gpio-controller; #gpio-cells = <2>; reg = <0x20>; + vcc-supply = <®_3p3v>; pinctrl-names = "default"; pinctrl-0 = <&pca0_pins>; interrupt-parent = <&gpio0>; -- 2.54.0