linux-kernel - Re: [PATCH] pinctrl: renesas: r8a779[56]x: add MediaLB pins

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Date:   Thu, 7 Oct 2021 18:48:52 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Nikita Yushchenko <nikita.yoush@...entembedded.com>
Cc:     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>,
        Andrey Gusakov <andrey.gusakov@...entembedded.com>,
        Vladimir Barinov <vladimir.barinov@...entembedded.com>,
        LUU HOAI <hoai.luu.ub@...esas.com>
Subject: Re: [PATCH] pinctrl: renesas: r8a779[56]x: add MediaLB pins

Hi Nikita,

On Wed, Sep 29, 2021 at 11:14 PM Nikita Yushchenko
<nikita.yoush@...entembedded.com> wrote:
> From: Andrey Gusakov <andrey.gusakov@...entembedded.com>
>
> This adds pins, groups, and functions for MediaLB device on Renesas
> H3 and M3.
>
> Signed-off-by: Andrey Gusakov <andrey.gusakov@...entembedded.com>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@...entembedded.com>
> Signed-off-by: LUU HOAI <hoai.luu.ub@...esas.com>
> Signed-off-by: Nikita Yushchenko <nikita.yoush@...entembedded.com>

Thanks for your patch!

> --- a/drivers/pinctrl/renesas/pfc-r8a77950.c
> +++ b/drivers/pinctrl/renesas/pfc-r8a77950.c
> @@ -2369,6 +2369,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
>         IRQ5_MARK,
>  };
>
> +/* - MLB+ ------------------------------------------------------------------- */
> +static const unsigned int mlb_3pin_pins[] = {
> +       RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
> +};
> +static const unsigned int mlb_3pin_mux[] = {
> +       MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
> +};
> +
>  /* - MSIOF0 ----------------------------------------------------------------- */
>  static const unsigned int msiof0_clk_pins[] = {
>         /* SCK */
> @@ -3987,6 +3995,7 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
>         SH_PFC_PIN_GROUP(intc_ex_irq3),
>         SH_PFC_PIN_GROUP(intc_ex_irq4),
>         SH_PFC_PIN_GROUP(intc_ex_irq5),
> +       SH_PFC_PIN_GROUP(mlb_3pin),
>         SH_PFC_PIN_GROUP(msiof0_clk),
>         SH_PFC_PIN_GROUP(msiof0_sync),
>         SH_PFC_PIN_GROUP(msiof0_ss1),
> @@ -4380,6 +4389,10 @@ static const char * const intc_ex_groups[] = {
>         "intc_ex_irq5",
>  };
>
> +static const char * const mlb_3pin_groups[] = {
> +       "mlb_3pin",
> +};
> +
>  static const char * const msiof0_groups[] = {
>         "msiof0_clk",
>         "msiof0_sync",
> @@ -4709,6 +4722,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
>         SH_PFC_FUNCTION(i2c5),
>         SH_PFC_FUNCTION(i2c6),
>         SH_PFC_FUNCTION(intc_ex),
> +       SH_PFC_FUNCTION(mlb_3pin),
>         SH_PFC_FUNCTION(msiof0),
>         SH_PFC_FUNCTION(msiof1),
>         SH_PFC_FUNCTION(msiof2),

This part looks fine to me.

> diff --git a/drivers/pinctrl/renesas/pfc-r8a77951.c b/drivers/pinctrl/renesas/pfc-r8a77951.c
> index 84c0ea5d59c1..4e4e39640df4 100644
> --- a/drivers/pinctrl/renesas/pfc-r8a77951.c
> +++ b/drivers/pinctrl/renesas/pfc-r8a77951.c
> @@ -2453,6 +2453,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
>         IRQ5_MARK,
>  };
>
> +/* - MLB+ ------------------------------------------------------------------- */
> +static const unsigned int mlb_3pin_pins[] = {
> +       RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
> +};
> +static const unsigned int mlb_3pin_mux[] = {
> +       MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
> +};
> +
>  /* - MSIOF0 ----------------------------------------------------------------- */
>  static const unsigned int msiof0_clk_pins[] = {
>         /* SCK */
> @@ -4233,7 +4241,7 @@ static const unsigned int vin5_clk_mux[] = {
>  };
>
>  static const struct {
> -       struct sh_pfc_pin_group common[328];
> +       struct sh_pfc_pin_group common[329];

As MLB is not available on RZ/G2 SoCs, only on R-Car Gen3 SoCs, it should
be added to the automotive sections instead of the common sections.

This applies to pfc-r8a7796.c and pfc-r8a77965.c, too.

> --- a/drivers/pinctrl/renesas/pfc-r8a7796.c
> +++ b/drivers/pinctrl/renesas/pfc-r8a7796.c
> @@ -2458,6 +2458,14 @@ static const unsigned int intc_ex_irq5_mux[] = {
>         IRQ5_MARK,
>  };
>
> +/* - MLB+ ------------------------------------------------------------------- */
> +static const unsigned int mlb_3pin_pins[] = {
> +       RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 25),
> +};
> +static const unsigned int mlb_3pin_mux[] = {
> +       MLB_CLK_MARK, MLB_SIG_MARK, MLB_DAT_MARK,
> +};
> +
>  /* - MSIOF0 ----------------------------------------------------------------- */
>  static const unsigned int msiof0_clk_pins[] = {
>         /* SCK */
> @@ -4301,6 +4309,7 @@ static const struct {
>                 SH_PFC_PIN_GROUP(intc_ex_irq3),
>                 SH_PFC_PIN_GROUP(intc_ex_irq4),
>                 SH_PFC_PIN_GROUP(intc_ex_irq5),
> +               SH_PFC_PIN_GROUP(mlb_3pin),

error: excess elements in array initializer [-Werror]

>                 SH_PFC_PIN_GROUP(msiof0_clk),
>                 SH_PFC_PIN_GROUP(msiof0_sync),
>                 SH_PFC_PIN_GROUP(msiof0_ss1),

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