linux-kernel - Re: [PATCH v2] arm64: dts: imx8mn-var-som-symphony: add vcc supply for PCA9534

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Message-ID: <20231206005033.GK236001@dragon>
Date:   Wed, 6 Dec 2023 08:50:33 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Hugo Villeneuve <hugo@...ovil.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: imx8mn-var-som-symphony: add vcc supply
 for PCA9534

On Tue, Nov 07, 2023 at 10:50:40AM -0500, Hugo Villeneuve wrote:
> From: Hugo Villeneuve <hvilleneuve@...onoff.com>
> 
> The following warning is shown when probing device:
> 
>     pca953x 1-0020: supply vcc not found, using dummy regulator
> 
> Define a new fixed 3.3v regulator for carrier board peripherals,
> enabled by mosfet switch Q2 after the SOM_3V3 supply rises (no software
> control).
> 
> Add this new regulator as vcc supply to the PCA9534 to silence the warning.
> 
> Signed-off-by: Hugo Villeneuve <hvilleneuve@...onoff.com>

Applied, thanks!