linux-kernel - Re: [PATCH v3 1/2] net: fec: restore handling of PHY reset line as optional

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Date:   Wed, 1 Feb 2023 22:58:45 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Wei Fang <wei.fang@....com>, Jakub Kicinski <kuba@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] net: fec: restore handling of PHY reset line as
 optional

On Wed, Feb 01, 2023 at 01:53:19PM -0800, Dmitry Torokhov wrote:
> Conversion of the driver to gpiod API done in 468ba54bd616 ("fec:
> convert to gpio descriptor") incorrectly made reset line mandatory and
> resulted in aborting driver probe in cases where reset line was not
> specified (note: this way of specifying PHY reset line is actually
> deprecated).
> 
> Switch to using devm_gpiod_get_optional() and skip manipulating reset
> line if it can not be located.
> 
> Fixes: 468ba54bd616 ("fec: convert to gpio descriptor")
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew