[PATCH 04/15] pinctrl: sh-pfc: Initial R-Car M3-N support

jacopo mondi jacopo at jmondi.org
Wed Feb 14 05:53:06 PST 2018

Hi Geert,
   thanks for review

On Wed, Feb 14, 2018 at 02:37:08PM +0100, Geert Uytterhoeven wrote:
> Hi Jacopo,
> On Tue, Feb 13, 2018 at 10:45 AM, Jacopo Mondi
> <jacopo+renesas at jmondi.org> wrote:
> > Add initial PFC support for R-Car M3-N (r8a77965) SoC.
> > No groups or functions defined, just pin and registers enumeration.
> >
> > Signed-off-by: Jacopo Mondi <jacopo+renesas at jmondi.org>
> Thanks for your patch!
> Looks mostly OK to me.
> You do want to compare with pfc-r8a7796.c: all differences not related to
> SATA_DEVSL, FSCLK, DU_DOTCLKIN2/3, and PRESET are issues that were fixed
> recently in pfc-r8a7796.c, and should apply to pfc-r8a77965.c, too.

I have used the M3-W tables with the exception of the pins/groups you
mentioned, that are clearly marked as different in the datasheet. At
least, this was my intention :)

I used v4.15 M3-W PFC tables, should I look in v4.16-rc1 or in
renesas-drivers for updates?

> That leaves us with very few differences only, but it won't be trivial to have
> a combined M3-W/N PFC driver, I'm afraid.

Takes a certain degree of grep-foo to clearly highlight differences
between the two version. Do you have any script/tools you use to
compare PFC tables a bit more easily?


> Gr{oetje,eeting}s,
>                         Geert
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
> 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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