tree 5dbbfa41d5186add0e28b6d6b3e07b2267856c4f
parent c6505f3f8df8a5f00197f0eee5cc502e4e59c6a4
author Jonny Svärd <jonny.svaerd@arm.com> 1650990684 +0200
committer Kristofer Jonsson <kristofer.jonsson@arm.com> 1651755393 +0000

Refactor power handling

Add reference counted ethosu_request_power(),
ethosu_release_power() functions. While there are
active requests, disable the Q-channel power gating
of the Ethos-U device, leaving the device powered on.
Note that clock gating is implemented to follow the
state of the power gating.

Add ethosu_soft_reset() function. Restore power-
and clock gating state after reset.

Refactor and simplify driver code to use the new
functions.

Change-Id: I9756572c5c3e51b2be244bcea856d88e890e2d40