linux-kernel - [tip: timers/clocksource] clocksource/drivers/arm_arch_timer

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Message-ID: <176416804140.498.4985971315349863628.tip-bot2@tip-bot2>
Date: Wed, 26 Nov 2025 14:40:41 -0000
From: "tip-bot2 for Johan Hovold" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Johan Hovold <johan@...nel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>, Marc Zyngier <maz@...nel.org>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: timers/clocksource] clocksource/drivers/arm_arch_timer_mmio:
 Prevent driver unbind

The following commit has been merged into the timers/clocksource branch of tip:

Commit-ID:     6aa10f0e2ef9eba1955be6a9d0a8eaecf6bdb7ae
Gitweb:        https://git.kernel.org/tip/6aa10f0e2ef9eba1955be6a9d0a8eaecf6bdb7ae
Author:        Johan Hovold <johan@...nel.org>
AuthorDate:    Tue, 11 Nov 2025 16:32:24 +01:00
Committer:     Daniel Lezcano <daniel.lezcano@...aro.org>
CommitterDate: Wed, 26 Nov 2025 11:24:47 +01:00

clocksource/drivers/arm_arch_timer_mmio: Prevent driver unbind

Clockevents cannot be deregistered so suppress the bind attributes to
prevent the driver from being unbound and releasing the underlying
resources after registration.

Fixes: 4891f01527bb ("clocksource/drivers/arm_arch_timer: Add standalone MMIO driver")
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Acked-by: Marc Zyngier <maz@...nel.org>
Link: https://patch.msgid.link/20251111153226.579-2-johan@kernel.org
---
 drivers/clocksource/arm_arch_timer_mmio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clocksource/arm_arch_timer_mmio.c b/drivers/clocksource/arm_arch_timer_mmio.c
index ebe1987..d103626 100644
--- a/drivers/clocksource/arm_arch_timer_mmio.c
+++ b/drivers/clocksource/arm_arch_timer_mmio.c
@@ -426,6 +426,7 @@ static struct platform_driver arch_timer_mmio_drv = {
 	.driver	= {
 		.name = "arch-timer-mmio",
 		.of_match_table	= arch_timer_mmio_of_table,
+		.suppress_bind_attrs = true,
 	},
 	.probe	= arch_timer_mmio_probe,
 };
@@ -434,6 +435,7 @@ builtin_platform_driver(arch_timer_mmio_drv);
 static struct platform_driver arch_timer_mmio_acpi_drv = {
 	.driver	= {
 		.name = "gtdt-arm-mmio-timer",
+		.suppress_bind_attrs = true,
 	},
 	.probe	= arch_timer_mmio_probe,
 };