linux-kernel - Re: [PATCH v2 2/4] arm64: dts: exynos: gs101-pixel-common: add Maxim MAX77759 PMIC

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Message-ID: <2c491166-d8ae-4fb6-a4f7-74e823e1205d@kernel.org>
Date: Thu, 26 Jun 2025 21:49:25 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: André Draszik <andre.draszik@...aro.org>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Peter Griffin <peter.griffin@...aro.org>,
 Tudor Ambarus <tudor.ambarus@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 2/4] arm64: dts: exynos: gs101-pixel-common: add Maxim
 MAX77759 PMIC

On 24/05/2025 07:21, André Draszik wrote:
> +
> +		gpio {
> +			compatible = "maxim,max77759-gpio";
> +
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			/*
> +			 * "Human-readable name [SIGNAL_LABEL]" where the
> +			 * latter comes from the schematic
> +			 */
> +			gpio-line-names = "OTG boost [OTG_BOOST_EN]",
> +					  "max20339 IRQ [MW_OVP_INT_L]";
> +
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +		};
> +
> +		nvmem-0 {

Why is this called nvmem-0, not nvmem? Is there nvmem-1? I see binding
does it, but why?

Best regards,
Krzysztof