linux-kernel - Re: [PATCH v2] pinctrl: sh-pfc: r8a7790: Add VIN1-B and VIN2-G pins, groups and functions

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Date:   Tue, 15 Sep 2020 01:27:56 +0200
From:   Niklas Söderlund 
        <niklas.soderlund@...natech.se>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Biju Das <biju.das.jz@...renesas.com>,
        Prabhakar <prabhakar.csengg@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v2] pinctrl: sh-pfc: r8a7790: Add VIN1-B and VIN2-G pins,
 groups and functions

Hi Geert, Lad,

On 2020-09-14 16:47:27 +0200, Geert Uytterhoeven wrote:
> Hi Prabhakar,
> 
> CC Laurent, Niklas
> 
> On Sun, Sep 13, 2020 at 8:29 PM Lad Prabhakar
> <prabhakar.mahadev-lad.rj@...renesas.com> wrote:
> > Add pins, groups and functions for the VIN1-B [data/clk/sync] and VIN2-G [data].
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > Reviewed-by: Biju Das <biju.das.jz@...renesas.com>
> > ---
> > Changes for v2:
> > * Added complete list of VIN1-B pins
> > * Renamed vin2_data8_g to vin2_data8g
> > * Sorted vin1_sync_b pins
> >
> > v1 - https://patchwork.kernel.org/patch/11761191/
> 
> Thanks for the update!
> 
> > --- a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
> > +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
> 
> > @@ -3874,6 +3940,14 @@ static const unsigned int vin1_sync_mux[] = {
> >         VI1_HSYNC_N_MARK,
> >         VI1_VSYNC_N_MARK,
> >  };
> > +static const unsigned int vin1_sync_b_pins[] = {
> > +       RCAR_GP_PIN(1, 24), /* HSYNC */
> > +       RCAR_GP_PIN(1, 25), /* VSYNC */
> > +};
> > +static const unsigned int vin1_sync_b_mux[] = {
> > +       VI1_HSYNC_N_B_MARK,
> > +       VI1_VSYNC_N_B_MARK,
> > +};
> >  static const unsigned int vin1_field_pins[] = {
> >         RCAR_GP_PIN(1, 13),
> >  };
> 
> Missing field_b and clkenb_b.
> 
> > @@ -3959,6 +4039,18 @@ static const unsigned int vin2_data18_mux[] = {
> >         VI2_R4_MARK, VI2_R5_MARK,
> >         VI2_R6_MARK, VI2_R7_MARK,
> >  };
> > +static const unsigned int vin2_data8g_pins[] = {
> > +       RCAR_GP_PIN(0, 27), RCAR_GP_PIN(0, 28),
> > +       RCAR_GP_PIN(0, 29), RCAR_GP_PIN(1, 10),
> > +       RCAR_GP_PIN(1, 4), RCAR_GP_PIN(1, 5),
> > +       RCAR_GP_PIN(1, 6), RCAR_GP_PIN(1, 7),
> > +};
> > +static const unsigned int vin2_data8g_mux[] = {
> > +       VI2_G0_MARK, VI2_G1_MARK,
> > +       VI2_G2_MARK, VI2_G3_MARK,
> > +       VI2_G4_MARK, VI2_G5_MARK,
> > +       VI2_G6_MARK, VI2_G7_MARK,
> > +};
> 
> Laurent, Niklas: are you happy with the name "vin2_data8g", or do
> you have a better suggestion?

I learnt recently that traditionally for single 8-bit RAW inputs are 
named R8 (fist in RGB). But as this really is the G pins and they are 
labeled as such I'm OK with the name, but I would like to hear Laurent's 
view as well.

> 
> >  static const unsigned int vin2_sync_pins[] = {
> >         RCAR_GP_PIN(1, 16), /* HSYNC */
> >         RCAR_GP_PIN(1, 21), /* VSYNC */
> 
> > @@ -4310,15 +4402,25 @@ static const struct {
> >                 VIN_DATA_PIN_GROUP(vin1_data, 10),
> >                 VIN_DATA_PIN_GROUP(vin1_data, 8),
> >                 VIN_DATA_PIN_GROUP(vin1_data, 4),
> > +               VIN_DATA_PIN_GROUP(vin1_data, 24, _b),
> > +               VIN_DATA_PIN_GROUP(vin1_data, 20, _b),
> > +               SH_PFC_PIN_GROUP(vin1_data18_b),
> > +               VIN_DATA_PIN_GROUP(vin1_data, 16, _b),
> > +               VIN_DATA_PIN_GROUP(vin1_data, 12, _b),
> > +               VIN_DATA_PIN_GROUP(vin1_data, 10, _b),
> > +               VIN_DATA_PIN_GROUP(vin1_data, 8, _b),
> 
> Missing vin1_data4_b.
> 
> >                 SH_PFC_PIN_GROUP(vin1_sync),
> > +               SH_PFC_PIN_GROUP(vin1_sync_b),
> >                 SH_PFC_PIN_GROUP(vin1_field),
> >                 SH_PFC_PIN_GROUP(vin1_clkenb),
> >                 SH_PFC_PIN_GROUP(vin1_clk),
> > +               SH_PFC_PIN_GROUP(vin1_clk_b),
> >                 VIN_DATA_PIN_GROUP(vin2_data, 24),
> >                 SH_PFC_PIN_GROUP(vin2_data18),
> >                 VIN_DATA_PIN_GROUP(vin2_data, 16),
> >                 VIN_DATA_PIN_GROUP(vin2_data, 8),
> >                 VIN_DATA_PIN_GROUP(vin2_data, 4),
> > +               SH_PFC_PIN_GROUP(vin2_data8g),
> >                 SH_PFC_PIN_GROUP(vin2_sync),
> >                 SH_PFC_PIN_GROUP(vin2_field),
> >                 SH_PFC_PIN_GROUP(vin2_clkenb),
> > @@ -4784,10 +4886,19 @@ static const char * const vin1_groups[] = {
> >         "vin1_data10",
> >         "vin1_data8",
> >         "vin1_data4",
> > +       "vin1_data24_b",
> > +       "vin1_data20_b",
> > +       "vin1_data18_b",
> > +       "vin1_data16_b",
> > +       "vin1_data12_b",
> > +       "vin1_data10_b",
> > +       "vin1_data8_b",
> 
> Missing vin1_data4_b.
> 
> >         "vin1_sync",
> > +       "vin1_sync_b",
> >         "vin1_field",
> >         "vin1_clkenb",
> >         "vin1_clk",
> > +       "vin1_clk_b",
> >  };
> >
> >  static const char * const vin2_groups[] = {
> 
> The rest looks good to me.
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-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

-- 
Regards,
Niklas Söderlund