Re: [PATCH 2/6] iommu/arm-smmu: add support for specifying regulators

On Wed, Aug 13, 2014 at 01:51:35AM +0100, Mitchel Humpherys wrote:

On some power-constrained platforms it's useful to disable power when a
device is not in use. Add support for specifying regulators for SMMUs
and only leave power on as long as the SMMU is in use (attached).

... and for bypass mode? My comments for clks largely apply here too -- I'd
much rather see this in domain_init/domain_destroy with appropriate
refcounting. It's just too much of a mess having these calls littered around
the driver.

Will