When the TUI use case starts, HLOS prepares for sharing the HW
by collecting the register io spaces and IRQ lines from all the
participating subdrivers before the switch. This change
adds necessary hook in the VM event framework, so that
subdrivers can provide their callback functions while
registering for events. It also adds necessary helpers
in the sde io util to parse and populate the IO memory
region that needs to be shared.
Change-Id: I4c0825fa76453a1c1ec421640deff36158d6ef8c
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
bd60dce87c