Clocks are now configurable via the common clock framework, however,
users have the option use the legacy clocks if desired. The intent is to
keep the changes minimal for this old SoC.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

In preparation for CCF migration for IPUv3 separate existing clock code
to legacy files. These will be used by i.MX5 that currently does not
support the CCF. No functional change.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

Get rid of most globals that are spread around between TU's and place
them in their own structs managed by dm. Device state is now owned by
each driver instance. This design mirrors the Linux IPUv3 driver
architecture.

This work is done in preparation to migrate the driver to the clock
framework. While not the primary intent, this change also enables
multiple IPU instances to exist contemporarily.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

Bring driver up-to-date with U-Boot conventions, but also takes into
account SPL and TPL, let compiler optimize while keeping code more
readable.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

U-Boot style specifies to use snake case and checkpatch nudge to check
them every time.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

Conform with U-Boot guidelines and pass checkpatch checks for upcoming
changes.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

Bring the code into compliance with U-Boot's coding style guidelines for
upcoming changes. Sort includes to tidy things up and apply
{ RemoveBracesLLVM: true } to remove unnecessary blocks.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

These functions don't seem to be defined nor called anywhere so remove
them.

Signed-off-by: Brian Ruley <brian.ruley@gehealthcare.com>

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>