Implements syscore_ops in cpu_pm to call the cpu and
cpu cluster notifiers during suspend and resume,
allowing drivers receiving the notifications to
avoid implementing syscore_ops.
Signed-off-by: Colin Cross <[email protected]>
Signed-off-by: Santosh Shilimkar <[email protected]>
Reviewed-by: Kevin Hilman <[email protected]>
Tested-and-Acked-by: Shawn Guo <[email protected]>
Tested-by: Vishwanath BS <[email protected]>
During some CPU power modes entered during idle, hotplug and
suspend, peripherals located in the CPU power domain, such as
the GIC, localtimers, and VFP, may be powered down. Add a
notifier chain that allows drivers for those peripherals to
be notified before and after they may be reset.
Notified drivers can include VFP co-processor, interrupt controller
and it's PM extensions, local CPU timers context save/restore which
shouldn't be interrupted. Hence CPU PM event APIs must be called
with interrupts disabled.
Signed-off-by: Colin Cross <[email protected]>
Signed-off-by: Santosh Shilimkar <[email protected]>
Reviewed-by: Kevin Hilman <[email protected]>
Tested-and-Acked-by: Shawn Guo <[email protected]>
Tested-by: Kevin Hilman <[email protected]>
Tested-by: Vishwanath BS <[email protected]>
Nicolas Pitre