[PATCH v4 1/6] clk: samsung: Use clk->base instead of directly using clk->con0 for PLL3xxx

[Andrew Bresticker]

Doug,

>> Hmm, if done properly, it could simplify PLL registration in SoC clock
>> initialization code a lot.
>>
>> I'm not sure if this is really the best solution (feel free to suggest
>> anything better), but we could put PLLs in an array, like other clocks,
>> e.g.
>>
>>         ... exynos4210_pll_clks[] = {
>>                 CLK_PLL45XX(...),
>>                 CLK_PLL45XX(...),
>>                 CLK_PLL46XX(...),
>>                 CLK_PLL46XX(...),
>>         };
>>
>> and then just call a helper like
>>
>>         samsung_clk_register_pll(exynos4210_pll_clks,
>>                         ARRAY_SIZE(exynos4210_pll_clks));
>
> Something like that looks like what I was thinking.  I'd have to see
> it actually coded up to see if there's something I'm missing that
> would prevent us from doing that, but I don't see anything.

The only issue I see with this is that we may only want to register a
rate table with a PLL only if fin_pll is running at a certain rate.
On 5250 and 5420, for example, we have EPLL and VPLL rate tables that
should only be registered if fin_pll is 24Mhz.  We may have to
register those separately, but this approach seems fine otherwise.

-Andrew