pm/Kconfig: make power management settings dependent on SCHED_WORKQUEUE
* The power managment system depends on workqueue support, which
checks at compile time and cause build failure, if workqueues
disabled. However, it seems necessary to make PM
option dependent on SCHED_WORKQUEUE itself.
menuconfig PM
bool "Power management (PM) driver interfaces"
default n
+ depends on SCHED_WORKQUEUE
---help---
Power management (PM) driver interfaces. These interfaces are used
to manage power usage of a platform by monitoring driver activity
