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Message-ID: <ZXDDtmRklS6o994V@shell.armlinux.org.uk>
Date:   Wed, 6 Dec 2023 18:55:50 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Alexander Couzens <lynxis@...0.eu>,
        Qingfang Deng <dqfext@...il.com>,
        SkyLake Huang <SkyLake.Huang@...iatek.com>,
        Philipp Zabel <p.zabel@...gutronix.de>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-phy@...ts.infradead.org
Subject: Re: [RFC PATCH v2 8/8] net: ethernet: mtk_eth_soc: add paths and
 SerDes modes for MT7988

On Wed, Dec 06, 2023 at 01:45:17AM +0000, Daniel Golle wrote:
> @@ -516,6 +538,21 @@ static struct phylink_pcs *mtk_mac_select_pcs(struct phylink_config *config,
>  	struct mtk_eth *eth = mac->hw;
>  	unsigned int sid;
>  
> +	if (mtk_is_netsys_v3_or_greater(eth)) {
> +		switch (interface) {
> +		case PHY_INTERFACE_MODE_1000BASEX:
> +		case PHY_INTERFACE_MODE_2500BASEX:
> +		case PHY_INTERFACE_MODE_SGMII:
> +			return mtk_pcs_lynxi_select_pcs(mac->sgmii_pcs_of_node, interface);
> +		case PHY_INTERFACE_MODE_5GBASER:
> +		case PHY_INTERFACE_MODE_10GBASER:
> +		case PHY_INTERFACE_MODE_USXGMII:
> +			return mtk_usxgmii_select_pcs(mac->usxgmii_pcs_of_node, interface);

>From what I can see, neither of these two "select_pcs" methods that
you're calling makes any use of the "interface" you pass to them.
I'm not sure what they _could_ do with it either, given that what
you're effectively doing here is getting the phylink_pcs structure from
the driver, and each one only has a single phylink_pcs.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

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