linux-kernel - RE: [PATCH] net: fec: get regulator optional

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Message-ID: <VI1PR0402MB3600576A0BE62C6363F93B45FF980@VI1PR0402MB3600.eurprd04.prod.outlook.com>
Date:   Tue, 22 Jan 2019 01:39:44 +0000
From:   Andy Duan <fugang.duan@....com>
To:     Stefan Agner <stefan@...er.ch>,
        "davem@...emloft.net" <davem@...emloft.net>
CC:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        "dev@...henker.ch" <dev@...henker.ch>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] net: fec: get regulator optional

From: Stefan Agner <stefan@...er.ch> Sent: Monday, January 21, 2019 10:59 PM
> According to the device tree binding the phy-supply property is optional. Use
> the regulator_get_optional API accordingly. The code already handles NULL
> just fine.
> 
> This gets rid of the following warning:
>   fec 2188000.ethernet: 2188000.ethernet supply phy not found, using
> dummy regulator
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>
Thanks.

Acked-by: Fugang Duan <fugang.duan@....com>
> ---
>  drivers/net/ethernet/freescale/fec_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index 6db69ba30dcd..c8315d880c8c 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -3479,7 +3479,7 @@ fec_probe(struct platform_device *pdev)
>  	if (ret)
>  		goto failed_clk_ipg;
> 
> -	fep->reg_phy = devm_regulator_get(&pdev->dev, "phy");
> +	fep->reg_phy = devm_regulator_get_optional(&pdev->dev, "phy");
>  	if (!IS_ERR(fep->reg_phy)) {
>  		ret = regulator_enable(fep->reg_phy);
>  		if (ret) {
> --
> 2.20.1