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clocksource/drivers/tegra186: Add module owner

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The conversion to modules requires a correct handling of the module
refcount in order to prevent to unload it if it is in use. That is
especially true with clockevents where there is no function to
unregister them.

The core time framework correctly handles the module refcount with the
different clocksource and clockevents if the module owner is set.

Add the module owner to make sure the core framework will prevent
stupid things happening when the driver will be converted into a
module.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20250602151853.1942521-5-daniel.lezcano@linaro.org
(cherry picked from commit 6d92fe9b423c19e6ec6dcbf71528a4bbbb7bf814)

Bug 5391604

Change-Id: I49c3424890eedf748a8c18fe0f0f6a2645b84e6e
Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-noble/+/3422019
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Daniel Lezcano
2025-06-02 17:18:48 +02:00
committed by mobile promotions
parent e2e1186972
commit e8d7eea840
1 changed files with 3 additions and 0 deletions
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drivers/clocksource/timer-tegra186.c
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@@ -373,6 +373,7 @@ static int tegra186_timer_tsc_init(struct tegra186_timer *tegra)
tegra->tsc.read = tegra186_timer_tsc_read;
tegra->tsc.mask = CLOCKSOURCE_MASK(56);
tegra->tsc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
tegra->tsc.owner = THIS_MODULE;
return clocksource_register_hz(&tegra->tsc, 31250000);
}
@@ -392,6 +393,7 @@ static int tegra186_timer_osc_init(struct tegra186_timer *tegra)
tegra->osc.read = tegra186_timer_osc_read;
tegra->osc.mask = CLOCKSOURCE_MASK(32);
tegra->osc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
tegra->osc.owner = THIS_MODULE;
return clocksource_register_hz(&tegra->osc, 38400000);
}
@@ -411,6 +413,7 @@ static int tegra186_timer_usec_init(struct tegra186_timer *tegra)
tegra->usec.read = tegra186_timer_usec_read;
tegra->usec.mask = CLOCKSOURCE_MASK(32);
tegra->usec.flags = CLOCK_SOURCE_IS_CONTINUOUS;
tegra->usec.owner = THIS_MODULE;
return clocksource_register_hz(&tegra->usec, USEC_PER_SEC);
}