Re: [PATCH 04/14] clk: sunxi: add ahb1 clock for A83T

Vishnu Patekar
2016-02-12T05:24:39Z

Hello Maxime,

On Thu, Feb 4, 2016 at 4:01 PM, Maxime Ripard
<maxime.ripard@free-electrons.com> wrote:
> On Thu, Feb 04, 2016 at 02:06:45PM +0800, Vishnu Patekar wrote:
>> Hello Maxime,
>>
>>
>> On Tue, Feb 2, 2016 at 9:17 PM, Maxime Ripard
>> <maxime.ripard@free-electrons.com> wrote:
>> > Hi,
>> >
>> > On Sun, Jan 31, 2016 at 09:20:56AM +0800, Vishnu Patekar wrote:
>> >> AHB1 on A83T is similar to ahb1 on A31, except parents are different.
>> >> clock index 0b1x is PLL6.
>> >>
>> >> Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
>> >
>> > If the clock is the same but the parents are different, then we don't
>> > need to duplicate all the logic. Simply add the number of parents to
>> > mux_data, and you're all set.
>>
>> Problem here is: parent 0b10 for A31 ahb1 is AXI, 0b11 is pll6/pre_div.
>> 0b10 and 0b11 is pll6/pre_div.
>> So, just adding number of parents to mux_data will not solve problem.
>
> Is anyone using 0b11 ? Can't we just ignore it?
Yes, it's used, 0b11 is pll6 parent in case of A31.
>
> Maxime
>
> --
> Maxime Ripard, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com