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rtc: mc146818-lib: refactor mc146818_does_rtc_work

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Refactor mc146818_does_rtc_work() so that it uses mc146818_avoid_UIP().
It is enough to call mc146818_avoid_UIP() with no callback.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211210200131.153887-8-mat.jonczyk@o2.pl
This commit is contained in:
Mateusz Jończyk 2021-12-10 21:01:29 +01:00 committed by Alexandre Belloni
parent 2a61b0ac54
commit 2c7d47a45b
1 changed files with 1 additions and 16 deletions
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17
drivers/rtc/rtc-mc146818-lib.c
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@ -84,22 +84,7 @@ EXPORT_SYMBOL_GPL(mc146818_avoid_UIP);
*/
bool mc146818_does_rtc_work(void)
{
int i;
unsigned char val;
unsigned long flags;
for (i = 0; i < 10; i++) {
spin_lock_irqsave(&rtc_lock, flags);
val = CMOS_READ(RTC_FREQ_SELECT);
spin_unlock_irqrestore(&rtc_lock, flags);
if ((val & RTC_UIP) == 0)
return true;
mdelay(1);
}
return false;
return mc146818_avoid_UIP(NULL, NULL);
}
EXPORT_SYMBOL_GPL(mc146818_does_rtc_work);