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clockevents/drivers/timer-stm32: Fix build warning spotted by kbuild test robot

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This patch fixes below warning spotted by kbuild test robot when building
with ARCH=powerpc:

   drivers/clocksource/timer-stm32.c: In function 'stm32_clockevent_init':
>> drivers/clocksource/timer-stm32.c:140:9: warning: large integer implicitly
	truncated to unsigned type [-Woverflow]

     writel_relaxed(~0UL, data->base + TIM_ARR);

The fix consists in using 0U instead of 0UL.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Maxime Coquelin 2015-05-28 07:05:53 +02:00 committed by Daniel Lezcano
parent e37e45934a
commit d4688bdc63
1 changed files with 2 additions and 2 deletions
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4
drivers/clocksource/timer-stm32.c
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@ -137,9 +137,9 @@ static void __init stm32_clockevent_init(struct device_node *np)
}
/* Detect whether the timer is 16 or 32 bits */
writel_relaxed(~0UL, data->base + TIM_ARR);
writel_relaxed(~0U, data->base + TIM_ARR);
max_delta = readl_relaxed(data->base + TIM_ARR);
if (max_delta == ~0UL) {
if (max_delta == ~0U) {
prescaler = 1;
bits = 32;
} else {