linux-kernel - Re: [PATCH] arm64: dts: freescale: imx93-phyboard-nash: Move ADC vref to SoM

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Message-ID: <20250605025325.GF29462@nxa18884-linux>
Date: Thu, 5 Jun 2025 10:53:25 +0800
From: Peng Fan <peng.fan@....nxp.com>
To: Primoz Fiser <primoz.fiser@...ik.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, upstream@...ts.phytec.de
Subject: Re: [PATCH] arm64: dts: freescale: imx93-phyboard-nash: Move ADC
 vref to SoM

On Mon, Jun 02, 2025 at 02:52:07PM +0200, Primoz Fiser wrote:
>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 <primoz.fiser@...ik.com>

Reviewed-by: Peng Fan <peng.fan@....com>