netdev - Re: [PATCHv2 1/9] at91: provide macb clks with "pclk" and "hclk" name

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Message-ID: <AANLkTin9FH2orOaV-6feGDikCGvb3C-Q2CnRzp-Y2S4X@mail.gmail.com>
Date:	Thu, 17 Mar 2011 11:22:37 +0200
From:	Andrew Victor <avictor.za@...il.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	nicolas.ferre@...el.com, Jamie Iles <jamie@...ieiles.com>,
	plagnioj@...osoft.com, linux-arm-kernel@...ts.infradead.org,
	netdev@...r.kernel.org
Subject: Re: [PATCHv2 1/9] at91: provide macb clks with "pclk" and "hclk" name

hi Russell,

>> There is no reference to a "pclk" or "hclk" in the AT91 architecture.
>> So to avoid possible confusion, maybe create two "fake" clocks both
>> parented to "macb_clk", and add a comment they're only for
>> compatibility with the AVR32.
>
> It doesn't matter what's in the documentation.
>
> What matters more than conforming to documentation is keeping the drivers
> in a clean and maintainable state without throwing lots of ifdefs into
> them.

I'm not saying the drivers need ifdefs, they should request both
"pclk" and "hclk" as suggested.

What I was suggesting is the platform clock setup on AT91 as:
    macb_clk
        |
        +-- hclk
        +-- pclk

rather than:
    pclk
        |
        +-- hclk

Regards,
  Andrew Victor
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