Re: [PATCH v2 06/13] pinctrl: renesas: pinctrl-rzg2l: Add function pointers for locking/unlocking the PFC register

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

On Tue, Apr 23, 2024 at 7:59 PM Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> On the RZ/G2L SoC, the PFCWE bit controls writing to PFC registers.
> However, on the RZ/V2H(P) SoC, the PFCWE (REGWE_A on RZ/V2H) bit controls
> writing to both PFC and PMC registers. Additionally, BIT(7) B0WI is
> undocumented for the PWPR register on RZ/V2H(P) SoC. To accommodate these
> differences across SoC variants, introduce the set_pfc_mode() and
> pm_set_pfc() function pointers.
>
> Note, in rzg2l_pinctrl_set_pfc_mode() the pwpr_pfc_unlock() call is now
> called before PMC read/write and pwpr_pfc_lock() call is now called after
> PMC read/write this is to keep changes minimal for RZ/V2H(P).
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
> RFC->v2
> - Introduced function pointer for (un)lock

Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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