clocksource/drivers/tegra186: Avoid 64-bit division

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[ Upstream commit 409f8fe03e ]

The newly added function causes a build failure on 32-bit targets with
older compiler version such as gcc-10:

arm-linux-gnueabi-ld: drivers/clocksource/timer-tegra186.o: in function `tegra186_wdt_get_timeleft':
timer-tegra186.c:(.text+0x3c2): undefined reference to `__aeabi_uldivmod'

The calculation can trivially be changed to avoid the division entirely,
as USEC_PER_SEC is a multiple of 5. Change both such calculation for
consistency, even though gcc apparently managed to optimize the other one
properly already.

[dlezcano : Fixed conflict with 20250614175556.922159-2-linux@roeck-us.net ]

Fixes: 28c842c8b0 ("clocksource/drivers/timer-tegra186: Add WDIOC_GETTIMELEFT support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20250620111939.3395525-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Arnd Bergmann 2025-06-20 13:19:35 +02:00 • committed by Greg Kroah-Hartman

parent 0ba03ca70b

commit 587f535cce

1 changed files with 1 additions and 1 deletions

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drivers/clocksource/timer-tegra186.c

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