[PATCH v2 2/2] clocksource/drivers/renesas-ostm: Enable reprobe for all ARM64 SoCs

[Geert Uytterhoeven]

Hi Prabhakar,

On Fri, 2 May 2025 at 14:47, Prabhakar <prabhakar.csengg at gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
>
> Change the OSTM driver's probe condition to `CONFIG_ARM64` so that the
> platform driver will defer and reprobe on any ARM64 Renesas SoC once its
> reset controller is available. Previously, only RZ/G2L and RZ/V2H(P)
> were covered.
>
> By matching on `CONFIG_ARM64`, this avoids adding a new config entry
> for each future ARM64 Renesas SoC with OSTM IP. RZ/A1 and RZ/A2 (ARM32)
> are unaffected-they still use OSTM but do not define a resets property,
> so the deferred reprobe mechanism is unnecessary.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
> ---
> Hi Geert,
> I've restored the Reviewed-by tag from v1 with your suggestions applied.
> I hope you're okay with this.
> Cheers, Prabhakar
>
> v1->v2:
> - Instead of adding config for new SoC, changed the probe condition to
>   `CONFIG_ARM64`.
> - Updated commit message
> - Added a Reviewed-by tag from Geert.
> ---
>  drivers/clocksource/renesas-ostm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clocksource/renesas-ostm.c b/drivers/clocksource/renesas-ostm.c
> index 3fcbd02b2483..6a5785f9c9c1 100644
> --- a/drivers/clocksource/renesas-ostm.c
> +++ b/drivers/clocksource/renesas-ostm.c
> @@ -225,7 +225,7 @@ static int __init ostm_init(struct device_node *np)
>
>  TIMER_OF_DECLARE(ostm, "renesas,ostm", ostm_init);
>
> -#if defined(CONFIG_ARCH_RZG2L) || defined(CONFIG_ARCH_R9A09G057)
> +#if defined(CONFIG_ARM64)

Sorry, I've just realized RZ/Five also wants this.

"#ifndef CONFIG_ARM"?

>  static int __init ostm_probe(struct platform_device *pdev)
>  {
>         struct device *dev = &pdev->dev;

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