[PATCH 0/5] watchdog: dw_wdt: reset clean up and pm
From: Artem Shimko
Date: Fri Mar 20 2026 - 09:56:43 EST
Hello maintainers and reviewers,
Patch 1 moves reset_control_deassert() before any register access to
ensure the watchdog controller is properly taken out of reset before
configuration, fixing a potential hardware access issue.
Patch 2 adds proper error handling for reset_control_deassert() to
prevent probe from continuing when reset deassertion fails, improving
diagnostics and reliability.
Patch 3 replaces manual reset control management with the
devm_reset_control_get_optional_shared_deasserted() helper, eliminating
explicit reset_control_assert() calls in error paths and remove.
Patch 4 adds reset line management during system suspend and resume,
asserting the reset before clocks are disabled and deasserting after
clocks are re-enabled to maintain consistent hardware state.
Patch 5 is a final cleanup of the resume function error handling.
Thank you!
--
Best regards,
Artem Shimko
Artem Shimko (5):
watchdog: dw_wdt: move reset control deassertion before register
access
watchdog: dw_wdt: add error handling for reset control deassertion
watchdog: dw_wdt: Use
devm_reset_control_get_optional_shared_deasserted
watchdog: dw_wdt: manage reset line during system suspend/resume
watchdog: dw_wdt: clean up error paths in resume function
drivers/watchdog/dw_wdt.c | 37 +++++++++++++++++++++----------------
1 file changed, 21 insertions(+), 16 deletions(-)
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2.43.0