Re: [PATCH v2 5/8] pinctrl: sh-pfc: r8a77990: Add VIN pins, groups and functions

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Hi Jacopo,

On Tue, Sep 11, 2018 at 9:44 AM jacopo mondi <jacopo@xxxxxxxxxx> wrote:
> On Mon, Sep 10, 2018 at 03:01:15PM +0200, Simon Horman wrote:
> > On Wed, Sep 05, 2018 at 05:29:42PM +0200, Jacopo Mondi wrote:
> > > This patch adds VIN{4,5} pins, groups and functions to the R8A77990 SoC.

> Currently there are two open questions on this PFC patch:

> 2) VIN5 synchronism signals (V/HSYNC, CLKENB, FIELD) are marked as
>    "_A" only, while VIN4 ones have not _A or _B extensions and are
>    shared between _A and _B group. The VIN5_#_A extension is an
>    indication that synchronism signals for group _B are not
>    multiplexed but active be default according to Morimoto-san, that
>    is about to confirm this with HW team. In that case, we need to
>    decide if to provide an 'vin5_sync_b' group anyway to let user
>    select it from DTS. Otherwise it won't be possible to select
>    synchronism pins for VIN5_B group (which is maybe fine if they're
>    not multiplexed at all).

If the a "B" sync group exists, the pins are probably configurable as GPIOs,
too, so we probably do need a group for them in the driver.

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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