[PATCH v1 1/1] arm64: dts: imx91-var-dart-sonata: add RGB select supply for PCA6408
From: Stefano Radaelli <hidden>
Date: 2026-03-27 16:33:05
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
From: Stefano Radaelli <redacted> 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 <redacted> --- 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