linux-kernel - Re: [PATCH 2/4] arcnet: com20020: bindings for smsc com20020

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Message-ID: <4f6cda28-478e-1af8-4a63-2165298cabcb@gmail.com>
Date:   Wed, 30 May 2018 16:07:22 +0200
From:   Andrea Greco <andrea.greco.gapmilano@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     "Tobin C. Harding" <tobin@...orbit.com>,
        Andrea Greco <a.greco@...gma.it>,
        Mark Rutland <mark.rutland@....com>,
        netdev <netdev@...r.kernel.org>, devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] arcnet: com20020: bindings for smsc com20020

On 05/24/2018 04:36 PM, Rob Herring wrote> If you want to add it, that's 
fine. But it's really not something that
> comes up often. For UARTs, there's already the "current-speed"
> property and most other things I can think of use Hz to express
> speeds.

No, Pref keep standard and use Hz.

This if finally:
```
SMSC com20020 Arcnet network controller

Required property:
- timeout-ns: Arcnet bus timeout, Idle Time (328000 - 20500)
- bus-speed-bps: Arcnet bus speed (10000000 - 156250)
- smsc,xtal-mhz: External oscillator frequency
- smsc,backplane-enabled: Controller use backplane mode
- reset-gpios: Chip reset pin
- interrupts: Should contain controller interrupt

arcnet@...00000 {
	compatible = "smsc,com20020";

	timeout-ns = <20500>;
	bus-speed-hz = <10000000>;
	smsc,xtal-mhz = <20>;
	smsc,backplane-enabled;

	reset-gpios = <&gpio3 21 GPIO_ACTIVE_LOW>;
	interrupts = <&gpio2 10 GPIO_ACTIVE_LOW>;
};
```
If confirmed, for me is right

Andrea