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SubjectRe: [PATCH v2 2/5] clk: sunxi-ng: mux: support fixed pre-dividers on multiple parents
On Tue, Aug 23, 2016 at 05:52:59PM +0800, Chen-Yu Tsai wrote:
> >> static const char * const ahb2_parents[] = { "ahb1" , "pll-periph0" };
> >> +static const struct ccu_mux_fixed_prediv ahb2_fixed_predivs[] = {
> >> + { .index = 1, .div = 2 },
> >> + { },
> >> +};
> >>
> >> [...]
> >>
> >> --- a/drivers/clk/sunxi-ng/ccu_mux.h
> >> +++ b/drivers/clk/sunxi-ng/ccu_mux.h
> >> @@ -5,15 +5,18 @@
> >>
> >> #include "ccu_common.h"
> >>
> >> +struct ccu_mux_fixed_prediv {
> >> + u8 index;
> >> + u16 div;
> >> +};
> >> +
> >> struct ccu_mux_internal {
> >> u8 shift;
> >> u8 width;
> >> const u8 *table;
> >>
> >> - struct {
> >> - u8 index;
> >> - u16 div;
> >> - } fixed_prediv;
> >> + const struct ccu_mux_fixed_prediv *fixed_predivs;
> >> + u8 n_predivs;
> >
> > I don't think you're using it anywhere (at least you don't define it
> > in ahb2_clk, and the extra item in the array will introduce an
> > off-by-one error.
>
> The truth is I forgot to update the change in ccu-sun8i-h3.c
> It is used correctly in the subsequent a31 patch. Sorry.
>
> I'm not sure what you mean by the off-by-one error though. IIRC
> we initialize the structure using named fields.

What I meant was that remember to also remove the second empty field
in ahb2_fixed_predivs.

Maxime

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