linux-kernel - Re: [PATCH net-next v3 4/8] net: sparx5: use phy_interface_mode_is

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Message-ID: <ZzzwNci1cHqsfHm4@shell.armlinux.org.uk>
Date: Tue, 19 Nov 2024 20:08:21 +0000
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Daniel Machon <daniel.machon@...rochip.com>
Cc: UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Lars Povlsen <lars.povlsen@...rochip.com>,
	Steen Hegelund <Steen.Hegelund@...rochip.com>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	jacob.e.keller@...el.com, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, devicetree@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH net-next v3 4/8] net: sparx5: use
 phy_interface_mode_is_rgmii()

Hi,

On Mon, Nov 18, 2024 at 02:00:50PM +0100, Daniel Machon wrote:
> diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
> index f8562c1a894d..cb55e05e5611 100644
> --- a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
> +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
> @@ -32,6 +32,9 @@ sparx5_phylink_mac_select_pcs(struct phylink_config *config,
>  {
>  	struct sparx5_port *port = netdev_priv(to_net_dev(config->dev));
>  
> +	if (phy_interface_mode_is_rgmii(interface))
> +		return NULL;
> +
>  	return &port->phylink_pcs;

Maybe turn this into positive logic - return the PCS only when the
interface mode requires the PCS?

Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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