From 8cc9c7592390c258d3da8b621eca05921b481942 Mon Sep 17 00:00:00 2001 From: Primoz Fiser Date: Mon, 2 Jun 2025 14:52:07 +0200 Subject: [PATCH] arm64: dts: freescale: imx93-phyboard-nash: Move ADC vref to SoM Move configuration for ADC voltage reference from board DTS to a SoM include file. The SoC ADC reference voltage is connected to a "VDDA_1V8" voltage node and supplied by the PMIC's BUCK5 regulator. The reference voltage is thus defined by the SoM and cannot be changed by the carrier board design and as such belongs into the SoM include file. Moreover, with this in place, customers designing own carrier boards can simply include imx93-phycore-som.dtsi and enable adc1 in their own DTS without the need to define dummy ADC vref regulator themselves anymore. Signed-off-by: Primoz Fiser Reviewed-by: Peng Fan Signed-off-by: Shawn Guo --- .../boot/dts/freescale/imx93-phyboard-nash.dts | 8 -------- .../arm64/boot/dts/freescale/imx93-phycore-som.dtsi | 13 +++++++++++++ 2 files changed, 13 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx93-phyboard-nash.dts b/arch/arm64/boot/dts/freescale/imx93-phyboard-nash.dts index e1c9aa77c0004..475913cf0cb9e 100644 --- a/arch/arm64/boot/dts/freescale/imx93-phyboard-nash.dts +++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-nash.dts @@ -53,18 +53,10 @@ regulator-max-microvolt = <1800000>; regulator-min-microvolt = <1800000>; }; - - reg_vref_1v8: regulator-adc-vref { - compatible = "regulator-fixed"; - regulator-name = "VREF_1V8"; - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <1800000>; - }; }; /* ADC */ &adc1 { - vref-supply = <®_vref_1v8>; status = "okay"; }; diff --git a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi index 0ea61841e591e..26bd801a49bb0 100644 --- a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi @@ -46,6 +46,19 @@ linux,default-trigger = "heartbeat"; }; }; + + reg_vdda_1v8: regulator-vdda-1v8 { + compatible = "regulator-fixed"; + regulator-name = "VDDA_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&buck5>; + }; +}; + +/* ADC */ +&adc1 { + vref-supply = <®_vdda_1v8>; }; /* Ethernet */ -- 2.51.0