linux-kernel - Re: [PATCH v2 1/4] net: dsa: Change DT bindings for Vitesse VSC73xx switches

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Message-ID: <97789626-8371-703b-b515-7eef5cdf198d@gmail.com>
Date:   Wed, 3 Jul 2019 08:26:18 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Pawel Dembicki <paweldembicki@...il.com>
Cc:     linus.walleij@...aro.org, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] net: dsa: Change DT bindings for Vitesse VSC73xx
 switches



On 7/3/2019 1:57 AM, Pawel Dembicki wrote:
> This commit introduce how to use vsc73xx platform driver.
> 
> Signed-off-by: Pawel Dembicki <paweldembicki@...il.com>

Pawel, please resubmit your patches starting a new thread, not as reply
to the existing ones, see
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/networking/netdev-FAQ.rst#n134
for details. Also, David Miller typically likes to have a cover letter
for patch count > 1.

Thanks!

> ---
> Changes in v2:
> - Drop -spi and -platform suffix
> - Change commit message
> 
>  .../bindings/net/dsa/vitesse,vsc73xx.txt      | 57 +++++++++++++++++--
>  1 file changed, 53 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
> index ed4710c40641..c55e0148657d 100644
> --- a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
> +++ b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
> @@ -2,8 +2,8 @@ Vitesse VSC73xx Switches
>  ========================
>  
>  This defines device tree bindings for the Vitesse VSC73xx switch chips.
> -The Vitesse company has been acquired by Microsemi and Microsemi in turn
> -acquired by Microchip but retains this vendor branding.
> +The Vitesse company has been acquired by Microsemi and Microsemi has
> +been acquired Microchip but retains this vendor branding.
>  
>  The currently supported switch chips are:
>  Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
> @@ -11,8 +11,13 @@ Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
>  Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
>  Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
>  
> -The device tree node is an SPI device so it must reside inside a SPI bus
> -device tree node, see spi/spi-bus.txt
> +This switch could have two different management interface.
> +
> +If SPI interface is used, the device tree node is an SPI device so it must
> +reside inside a SPI bus device tree node, see spi/spi-bus.txt
> +
> +If Platform driver is used, the device tree node is an platform device so it
> +must reside inside a platform bus device tree node.
>  
>  Required properties:
>  
> @@ -38,6 +43,7 @@ and subnodes of DSA switches.
>  
>  Examples:
>  
> +SPI:
>  switch@0 {
>  	compatible = "vitesse,vsc7395";
>  	reg = <0>;
> @@ -79,3 +85,46 @@ switch@0 {
>  		};
>  	};
>  };
> +
> +Platform:
> +switch@2,0 {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +	compatible = "vitesse,vsc7385";
> +	reg = <0x2 0x0 0x20000>;
> +	reset-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port@0 {
> +			reg = <0>;
> +			label = "lan1";
> +		};
> +		port@1 {
> +			reg = <1>;
> +			label = "lan2";
> +		};
> +		port@2 {
> +			reg = <2>;
> +			label = "lan3";
> +		};
> +		port@3 {
> +			reg = <3>;
> +			label = "lan4";
> +		};
> +		vsc: port@6 {
> +			reg = <6>;
> +			label = "cpu";
> +			ethernet = <&enet0>;
> +			phy-mode = "rgmii";
> +			fixed-link {
> +				speed = <1000>;
> +				full-duplex;
> +				pause;
> +			};
> +		};
> +	};
> +
> +};
> 

-- 
Florian