Re: [PATCH v4 2/6] clk: sunxi: Add H3 clocks support

Maxime Ripard
2015-11-04T16:24:56Z

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Hi Arnd,

On Fri, Oct 30, 2015 at 09:28:55AM +0100, Arnd Bergmann wrote:
> On Tuesday 27 October 2015 17:50:22 Jens Kuske wrote:
> > + of_property_read_string_index(node, "clock-output-names",
> > + i, &clk_name);
> > +
> > + if (index == 17 || (index >= 29 && index <= 31))
> > + clk_parent = AHB2;
> > + else if (index <= 63 || index >= 128)
> > + clk_parent = AHB1;
> > + else if (index >= 64 && index <= 95)
> > + clk_parent = APB1;
> > + else if (index >= 96 && index <= 127)
> > + clk_parent = APB2;
> > +
> > + clk_reg = reg + 4 * (index / 32);
> >
>
> Same as for the reset driver, this probably means you should have one
> cell to indicate which bus it is for, and another cell for the
> index.

It's not really comparable to the reset driver.

What's happening here is that we have a single set of (contiguous)
registers, controlling gates from different parents.

Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering