[PATCH v1] rtc: cmos: avoid UIP when writing/reading alarm time

[Kane Chen <kane.chen@intel.com>]

While runnings s0ix cycling test based on rtc alarm wakeup on ADL-P devices,
We found the data from CMOS_READ is not reasonable and causes RTC wake up fail.

With the below changes, we don't see unreasonable data from cmos and issue is gone.

cd17420: rtc: cmos: avoid UIP when writing alarm time
cdedc45: rtc: cmos: avoid UIP when reading alarm time
ec5895c: rtc: mc146818-lib: extract mc146818_avoid_UIP
ea6fa49: rtc: mc146818-lib: fix RTC presence check
13be2ef: rtc: cmos: Disable irq around direct invocation of cmos_interrupt()
0dd8d6c: rtc: Check return value from mc146818_get_time()
e1aba37: rtc: cmos: remove stale REVISIT comments
6950d04: rtc: cmos: Replace spin_lock_irqsave with spin_lock in hard IRQ
d35786b: rtc: mc146818-lib: change return values of mc146818_get_time()
ebb22a0: rtc: mc146818: Dont test for bit 0-5 in Register D
211e5db: rtc: mc146818: Detect and handle broken RTCs
dcf257e: rtc: mc146818: Reduce spinlock section in mc146818_set_time()
05a0302: rtc: mc146818: Prevent reading garbage


All of the above patches are landed on 6.0.11 stable kernel
I'd like pick the above patches back to 5.10 longterm kernel
Thanks


-- 
2.17.1