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From: Andrew Lunn <andrew@lunn.ch>
To: Juergen Borleis <jbe@pengutronix.de>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	f.fainelli@gmail.com, kernel@pengutronix.de,
	vivien.didelot@savoirfairelinux.com, davem@davemloft.net
Subject: Re: [PATCH v2 3/4] net: dsa: LAN9303: add I2C managed mode support
Date: Fri, 7 Apr 2017 15:40:07 +0200	[thread overview]
Message-ID: <20170407134007.GA22263@lunn.ch> (raw)
In-Reply-To: <20170407081502.30172-4-jbe@pengutronix.de>

Hi Juergen

> +Optional properties:
> +
> +- reset-gpios: GPIO to be used to reset the whole device, always low active

I would avoid the always low active comment. The input to the switch
is active low. But i've seen designs with an inverter in the reset
path, so from the perspective of the GPIO it would be active high. The
device tree binding allows for this, via the flags. And since you use
the gpiod API, it should all just work.

> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 { /* RMII fixed link to master */
> +				reg = <0>;
> +				label = "cpu";
> +				ethernet = <&master>;
> +			};
> +
> +			port@1 { /* external port 1 */
> +				compatible = "ethernet-phy-ieee802.3-c22";
> +				reg = <1>;
> +				label = "lan1;
> +			};

These are not PHY nodes, so does this compatible string do anything?

      Andrew

  reply	other threads:[~2017-04-07 13:40 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-07  8:14 [PATCHv2] net: dsa: add SMSC/Microchip LAN9303 three port ethernet switch driver Juergen Borleis
2017-04-07  8:14 ` [PATCH v2 1/4] net: dsa: add support for the SMSC-LAN9303 tagging format Juergen Borleis
2017-04-07 13:06   ` Andrew Lunn
2017-04-10  7:18     ` Juergen Borleis
2017-04-10 13:15       ` Andrew Lunn
2017-04-07  8:15 ` [PATCH v2 2/4] net: dsa: add new DSA switch driver for the SMSC-LAN9303 Juergen Borleis
2017-04-07 13:35   ` David Miller
2017-04-07 14:29   ` Andrew Lunn
2017-04-10  7:44     ` Juergen Borleis
2017-04-10 13:25       ` Andrew Lunn
2017-04-07  8:15 ` [PATCH v2 3/4] net: dsa: LAN9303: add I2C managed mode support Juergen Borleis
2017-04-07 13:40   ` Andrew Lunn [this message]
2017-04-10  7:58     ` Juergen Borleis
2017-04-07  8:15 ` [PATCH v2 4/4] net: dsa: LAN9303: add MDIO " Juergen Borleis
2017-04-07 14:19   ` Andrew Lunn
2017-04-07 14:27     ` David Miller
2017-04-07 14:54   ` Andrew Lunn
2017-04-07 15:05   ` Andrew Lunn

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