On 2022-12-19 16:15:02 [+0100], Krzysztof Kozlowski wrote: > device_pm_check_callbacks() uses dev->power spinlock, which on > PREEMPT_RT sleeps. However some PM domains on PREEMPT_RT might be using > raw spinlocks as genpd_lock(), thus dev_pm_domain_set() must not call > device_pm_check_callbacks(). In fact device_pm_check_callbacks() is not > strictly related to dev_pm_domain_set() and calls for these two can be > made separately. > > Add new helper dev_pm_domain_set_no_cb() which will only set PM domain > but will not check the callbacks, leaving the checl to the caller. s/checl/check/ But this I comprehend. > Cc: Adrien Thierry <athierry@xxxxxxxxxx> > Cc: Brian Masney <bmasney@xxxxxxxxxx> > Cc: linux-rt-users@xxxxxxxxxxxxxxx > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Sebastian
