netdev - Re: [PATCH v3 2/4] Documentation: Bindings: Add STM32 DWMAC glue

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Message-ID: <CAJgp7zz3XEY=z6xT91tpYRo4yzaD6zcd0YrweQeuk81+arFMTg@mail.gmail.com>
Date:	Fri, 4 Mar 2016 10:04:07 +0100
From:	Alexandre Torgue <alexandre.torgue@...il.com>
To:	Rob Herring <robh@...nel.org>
Cc:	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	netdev <netdev@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v3 2/4] Documentation: Bindings: Add STM32 DWMAC glue

Hi Rob,

2016-03-02 19:33 GMT+01:00 Rob Herring <robh@...nel.org>:
> On Fri, Feb 26, 2016 at 11:51:50AM +0100, Alexandre TORGUE wrote:
>> Signed-off-by: Alexandre TORGUE <alexandre.torgue@...il.com>
>>
>> diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.txt b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
>> new file mode 100644
>> index 0000000..67fceda
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
>> @@ -0,0 +1,40 @@
>> +STMicroelectronics STM32 / MCU DWMAC glue layer controller
>> +
>> +This file documents platform glue layer for stmmac.
>> +Please see stmmac.txt for the other unchanged properties.
>> +
>> +The device node has following properties.
>> +
>> +Required properties:
>> +- compatible:  Should be "st,stm32-dwmac" to select glue, and
>> +            "snps,dwmac-3.50a" to select IP vesrion.
>> +- clocks: Should contain the GMAC main clock, and tx clock
>> +- compatible:  Should be "st,stm32-dwmac" to select glue and
>> +            "snps,dwmac-3.50a" to select IP version.
>> +- clocks: Should contain the MAC main clock
>> +- clock-names: Should contain the clock names "stmmaceth".
>> +- st,syscon : Should be phandle/offset pair. The phandle to the syscon node which
>> +           encompases the glue register, and the offset of the control register.
>> +
>> +Optional properties:
>> +- clocks: Could contain:
>> +     - the tx clock,
>> +     - the rx clock
>> +- clock-names: Could contain the clock names "tx-clk", "rx-clk"
>
> Either the IP block has 3 clocks or it has 1. If you have a case where 1
> clock feeds all 3 inputs, then list the clock 3 times.

I agree. I will move rx/tx clock to required properties and then send a v4.

Regards.

Alexandre
>
> Rob