Re: [PATCH v2 02/10] pinctrl: sh-pfc: r8a7796: add Audio SSI pin support

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Hi Morimoto-san,

On Mon, May 15, 2017 at 2:23 AM, Kuninori Morimoto
<kuninori.morimoto.gx@xxxxxxxxxxx> wrote:
>> > +static const unsigned int ssi34_ctrl_pins[] = {
>> > +       /* SCK, WS */
>> > +       RCAR_GP_PIN(6, 5), RCAR_GP_PIN(6, 6),
>> > +};
>> > +static const unsigned int ssi34_ctrl_mux[] = {
>> > +       SSI_SCK34_MARK, SSI_WS34_MARK,
>> > +};
>>
>> I'm a bit confused by this group: in the R-Car M3 Pin Function Rev. 0.54
>> sheet, these are named SCK349 resp. WS349. According to the history, the
>> change from {SCK,WS}34 to {SCK,WS}349 was made at the same time as the
>> change from {SCK,WS}0129 to {SCK,WS}01239.
>> However, the former change is not reflected in the PFC section of the
>> Hardware User's Manual.
>>
>> So which is correct: {SCK,WS}34 or {SCK,WS}349?
>>
>> Can you please enlighten me?
>
> It seems
> SSI_SCK 0129 -> 01239 was happen on v0.51 timing,
> SSI_SCK 34   -> 349   was happen on v0.54 timing.

In the pin function spreadsheets, the changes were made together, in June 2016.

> r8a7795 is still using old (= 34) naming now.

Does this affect H3 ES1.0, too?
My main worry there is that the name "ssi34_ctrl" is part of the DT ABI,
so we have to keep that as an alias for "ssi349_ctrl".

> I can adjust it both r8a7795/6.
> Do you want to v3 patch for r8a7796 ?
> or incremental patch is OK with r8a7795 ?

As long as I haven't sent a pull request for sh-pfc-for-v4.13, it can still be
fixed incrementally.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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