From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Johan Hovold <johan@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Marc Zyngier <maz@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] clocksource/drivers/nxp-pit: Prevent driver unbind
Date: Wed, 12 Nov 2025 11:00:05 +0100 [thread overview]
Message-ID: <6336a324-3597-4726-b2ff-fe0f561c59bc@linaro.org> (raw)
In-Reply-To: <20251111153226.579-3-johan@kernel.org>
On 11/11/25 16:32, Johan Hovold wrote:
> The driver does not support unbinding (e.g. as clockevents cannot be
> deregistered) so suppress the bind attributes to prevent the driver from
> being unbound and rebound after registration (and disabling the timer
> when reprobing fails).
>
> Even if the driver can currently only be built-in, also switch to
> builtin_platform_driver() to prevent it from being unloaded should
> modular builds ever be enabled.
>
> Fixes: bee33f22d7c3 ("clocksource/drivers/nxp-pit: Add NXP Automotive s32g2 / s32g3 support")
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
> drivers/clocksource/timer-nxp-pit.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/clocksource/timer-nxp-pit.c b/drivers/clocksource/timer-nxp-pit.c
> index 2d0a3554b6bf..d1740f18f718 100644
> --- a/drivers/clocksource/timer-nxp-pit.c
> +++ b/drivers/clocksource/timer-nxp-pit.c
> @@ -374,9 +374,10 @@ static struct platform_driver nxp_pit_driver = {
> .driver = {
> .name = "nxp-pit",
> .of_match_table = pit_timer_of_match,
> + .suppress_bind_attrs = true,
> },
> .probe = pit_timer_probe,
> };
> -module_platform_driver(nxp_pit_driver);
> +builtin_platform_driver(nxp_pit_driver);
Do not use builtin_platform here. You can add the tristate Kconfig
option for this driver, I tested it.
--
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next prev parent reply other threads:[~2025-11-12 10:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-11 15:32 [PATCH 0/3] clocksource/drivers: Prevent clockevent " Johan Hovold
2025-11-11 15:32 ` [PATCH 1/3] clocksource/drivers/arm_arch_timer_mmio: Prevent " Johan Hovold
2025-11-11 15:45 ` Marc Zyngier
2025-11-26 14:40 ` [tip: timers/clocksource] " tip-bot2 for Johan Hovold
2025-11-11 15:32 ` [PATCH 2/3] clocksource/drivers/nxp-pit: " Johan Hovold
2025-11-12 10:00 ` Daniel Lezcano [this message]
2025-11-12 11:01 ` Johan Hovold
2025-11-12 15:20 ` Daniel Lezcano
2025-11-26 14:40 ` [tip: timers/clocksource] " tip-bot2 for Johan Hovold
2025-11-11 15:32 ` [PATCH 3/3] clocksource/drivers/nxp-stm: " Johan Hovold
2025-11-26 14:40 ` [tip: timers/clocksource] " tip-bot2 for Johan Hovold
2025-11-12 9:48 ` [PATCH 0/3] clocksource/drivers: Prevent clockevent " Daniel Lezcano
2025-11-12 11:00 ` Johan Hovold
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