netdev - Re: [PATCH v5 net-next 07/13] net: dsa: felix: add support for MFD configurations

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Message-ID: <1a359e6a-0836-9281-6246-b06fe252e431@gmail.com>
Date:   Fri, 27 Jan 2023 11:40:22 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Colin Foster <colin.foster@...advantage.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Russell King <linux@...linux.org.uk>,
        Richard Cochran <richardcochran@...il.com>,
        Andrew Lunn <andrew@...n.ch>, UNGLinuxDriver@...rochip.com,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, Lee Jones <lee@...nel.org>
Subject: Re: [PATCH v5 net-next 07/13] net: dsa: felix: add support for MFD
 configurations



On 1/27/2023 11:35 AM, Colin Foster wrote:
> The architecture around the VSC7512 differs from existing felix drivers. In
> order to add support for all the chip's features (pinctrl, MDIO, gpio) the
> device had to be laid out as a multi-function device (MFD).
> 
> One difference between an MFD and a standard platform device is that the
> regmaps are allocated to the parent device before the child devices are
> probed. As such, there is no need for felix to initialize new regmaps in
> these configurations, they can simply be requested from the parent device.
> 
> Add support for MFD configurations by performing this request from the
> parent device.
> 
> Signed-off-by: Colin Foster <colin.foster@...advantage.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian