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Message-ID: <Y1/NNbZiVvM9+mrm@lunn.ch>
Date:   Mon, 31 Oct 2022 14:27:17 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Chester Lin <clin@...e.com>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jan Petrous <jan.petrous@....com>,
        Ondrej Spacek <ondrej.spacek@....com>,
        Ghennadi Procopciuc <Ghennadi.Procopciuc@....com>,
        Andra-Teodora Ilie <andra.ilie@....com>,
        Andreas Färber <afaerber@...e.de>,
        Matthias Brugger <mbrugger@...e.com>
Subject: Re: [PATCH 5/5] net: stmmac: Add NXP S32 SoC family support

> +	/* set interface mode */
> +	if (gmac->ctrl_sts) {
> +		switch (gmac->intf_mode) {
> +		default:
> +			dev_info(&pdev->dev, "unsupported mode %u, set the default phy mode.\n",
> +				 gmac->intf_mode);

If it is an unsupported mode use dev_err() and return -EINVAL;

> +			fallthrough;
> +		case PHY_INTERFACE_MODE_SGMII:
> +			dev_info(&pdev->dev, "phy mode set to SGMII\n");

dev_dbg()

Please don't spam the lock with useless information.

> +			intf_sel = PHY_INTF_SEL_SGMII;
> +			break;
> +		case PHY_INTERFACE_MODE_RGMII:
> +		case PHY_INTERFACE_MODE_RGMII_ID:
> +		case PHY_INTERFACE_MODE_RGMII_TXID:
> +		case PHY_INTERFACE_MODE_RGMII_RXID:
> +			dev_info(&pdev->dev, "phy mode set to RGMII\n");

dev_dbg()

> +			intf_sel = PHY_INTF_SEL_RGMII;
> +			break;
> +		case PHY_INTERFACE_MODE_RMII:
> +			dev_info(&pdev->dev, "phy mode set to RMII\n");

dev_dbg()

> +			intf_sel = PHY_INTF_SEL_RMII;
> +			break;
> +		case PHY_INTERFACE_MODE_MII:
> +			dev_info(&pdev->dev, "phy mode set to MII\n");

dev_dbg()

> +			intf_sel = PHY_INTF_SEL_MII;
> +			break;
> +		}
> +
> +		writel(intf_sel, gmac->ctrl_sts);
> +	}
> +
> +	return 0;
> +}
> +
> +static int s32cc_config_cache_coherency(struct platform_device *pdev,
> +					struct plat_stmmacenet_data *plat_dat)
> +{
> +	plat_dat->axi4_ace_ctrl =
> +		devm_kzalloc(&pdev->dev,
> +			     sizeof(struct stmmac_axi4_ace_ctrl),
> +			     GFP_KERNEL);
> +
> +	if (!plat_dat->axi4_ace_ctrl) {
> +		dev_info(&pdev->dev, "Fail to allocate axi4_ace_ctrl\n");

dev_err(). But devm_kzalloc() failing will produce log messages, so
you probably don't need this.

    Andrew

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