RE: [PATCH 5/8] pinctrl: sh-pfc: r8a77995: Add EthernetAVB pins, groups and functions

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Hi Geert-san,

> -----Original Message-----
> From: Yoshihiro Shimoda
> Sent: Wednesday, August 30, 2017 10:14 PM
> 
> Hi Geert-san,
> 
> Sorry, I also missed this email...
> 
> > -----Original Message-----
> > From: Geert Uytterhoeven
> > Sent: Wednesday, August 16, 2017 8:06 PM
> >
> > Hi Shimoda-san, Kihara-san,
> >
> > On Wed, Aug 9, 2017 at 2:19 PM, Yoshihiro Shimoda
> > <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
> > > From: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
> > >
> > > Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
> > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
> >
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> >
> > But before I apply this, please see my question below...
> >
> > > --- a/drivers/pinctrl/sh-pfc/pfc-r8a77995.c
> > > +++ b/drivers/pinctrl/sh-pfc/pfc-r8a77995.c
> >
> > > +static const char * const avb0_groups[] = {
> > > +       "avb0_td",
> > > +       "avb0_rd",
> > > +       "avb0_tx_ctl",
> > > +       "avb0_rx_ctl",
> > > +       "avb0_txc",
> > > +       "avb0_rxc",
> > > +       "avb0_txcrefclk",
> > > +       "avb0_link",
> > > +       "avb0_magic",
> > > +       "avb0_phy_int",
> > > +       "avb0_mdc",
> > > +       "avb0_mdio",
> > > +       "avb0_avtp_pps_a",
> > > +       "avb0_avtp_match_a",
> > > +       "avb0_avtp_capture_a",
> > > +       "avb0_avtp_pps_b",
> > > +       "avb0_avtp_match_b",
> > > +       "avb0_avtp_capture_b",
> > > +};
> >
> > Is there any specific reason this uses a different split than the
> > EtherAVB groups
> > in pinctrl drivers for other SoCs?
> 
> I will check this tomorrow (or later...).

I asked Kihara-san about this and he doesn't know other SoC (r8a7795) has mii group.
So, I will modify the patch like r8a7795's group.

But...

> > Note that I do understand that the different prefix ("avb0" vs. "avb")
> > was used to
> > match the R-Car D3 datasheet, which is thus OK.

I checked this on the datasheet, but it seems error in it.
PFC section names "AVB0", but Ethernet AVB section names "AVB".
So, I'm asking hw team about this. After I got reply from them,
I will send v2 patch.

Best regards,
Yoshihiro Shimoda

> > 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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