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[v8,0/3] clocksource: fix Tegra234 SoC Watchdog Timer.

Message ID 20250507044311.3751033-1-robelin@nvidia.com
Headers show
Series clocksource: fix Tegra234 SoC Watchdog Timer. | expand

Message

Robert Lin May 7, 2025, 4:43 a.m. UTC 
From: robelin <robelin@nvidia.com>

This set of patches includes a fix for watchdog for it may not bark
due to self-pinging and adds WDIOC_GETTIMELEFT support.

--
V8:
- Change WARN_ON() to WARN_ON_ONCE() to not spew too many message
- Use pre-exist DIV_ROUND_CLOSEST_ULL for the same math operation

V7:
- Fix formatting
- Consider overflow and warn if happens

V6:
- Fix timeleft value addition using unmatched time unit
- Use u64 type to maintain the microseconds value in case of overflow

V5:
- Print warning message if get unexpected value from the register

V4:
- Improve the precision of timeleft value
- Fix the unused variable warning

V3:
- Improve comment description
- Refactor to fit codeline within 80 columns
- Remove unused if(0) blocks


V2:
- Fix a compilation error, a warning and updates copyright
--


Pohsun Su (2):
  clocksource/drivers/timer-tegra186: add WDIOC_GETTIMELEFT support
  clocksource/drivers/timer-tegra186: fix watchdog self-pinging

robelin (1):
  clocksource/drivers/timer-tegra186: Remove unused bits

 drivers/clocksource/timer-tegra186.c | 100 +++++++++++++++++----------
 1 file changed, 63 insertions(+), 37 deletions(-)