[linux-sunxi] Re: [PATCH 2/3] clk: sunxi-ng: add support for PRCM CCUs

Icenowy Zheng icenowy at aosc.xyz
Thu Mar 2 07:13:53 PST 2017

02.03.2017, 22:09, "Maxime Ripard" <maxime.ripard at free-electrons.com>:
> On Wed, Mar 01, 2017 at 08:22:13PM +0800, Icenowy Zheng wrote:
>>  > I'm a bit worried by that to be honest. You claim to support the A31,
>>  > yet jugdging by the current state of that code you never actually
>>  > tested it on that SoC.
>>  >
>>  > What makes you say that the PRCM clocks are the same for the H3 and
>>  > A64? We have to be sure, otherwise we might not be able to get the DT
>>  > binding right from the very beginning, and we might not be able to fix
>>  > it later.
>>  In fact, if we worry about this, we shouldn't make r-ccu, as
>>  dedicated clocks are more easy to fix.
>>  For newer SoCs' PRCM, we never have enough documents, and Allwinner
>>  have said that they cannot provide it. (I asked them for this.)
>>  The best solution is to implement mature enough dedicated clocks
>>  before we convert to ccu.
> What do you mean by dedicated clocks?

The legacy form of clocks.

> Maxime
> --
> Maxime Ripard, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com
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