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[93.144.20.233]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48722d236a9sm193697875e9.11.2026.03.27.09.33.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Mar 2026 09:33:03 -0700 (PDT) From: Stefano Radaelli X-Google-Original-From: Stefano Radaelli To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: pierluigi.p@variscite.com, Stefano Radaelli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Subject: [PATCH v1 1/1] arm64: dts: imx91-var-dart-sonata: add RGB select supply for PCA6408 Date: Fri, 27 Mar 2026 17:32:43 +0100 Message-ID: <20260327163243.17334-1-stefano.r@variscite.com> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Stefano Radaelli RGB_SEL controls the routing of some carrier board lines on the Sonata board. The two PCA6408 GPIO expanders depend on that path being enabled, so describe the selector as a fixed regulator and use it as their vcc-supply. Signed-off-by: Stefano Radaelli --- arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts index afa39dab240a..3b5816884f24 100644 --- a/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts +++ b/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts @@ -90,6 +90,13 @@ reg_vref_1v8: regulator-adc-vref { regulator-max-microvolt = <1800000>; }; + reg_rgb_sel: regulator-rgb-sel { + compatible = "regulator-fixed"; + regulator-name = "rgb-select"; + gpio = <&pca9534 7 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + reg_usdhc2_vmmc: regulator-vmmc-usdhc2 { compatible = "regulator-fixed"; pinctrl-names = "default"; @@ -195,6 +202,7 @@ pca6408_1: gpio@20 { #gpio-cells = <2>; interrupt-parent = <&gpio1>; interrupts = <10 IRQ_TYPE_LEVEL_LOW>; + vcc-supply = <®_rgb_sel>; }; pca6408_2: gpio@21 { @@ -204,6 +212,7 @@ pca6408_2: gpio@21 { #gpio-cells = <2>; interrupt-parent = <&gpio1>; interrupts = <10 IRQ_TYPE_LEVEL_LOW>; + vcc-supply = <®_rgb_sel>; }; pca9534: gpio@22 { -- 2.47.3