[00/15,v2] Ux500 hash cleanup

Message

Linus Walleij July 25, 2022, 2:04 p.m. UTC

This cleans up the Ux500 hash accelerator.

This has been very sparingly maintained the last few years,
but as it happens an active user appeared and sent me a
bug report, so here is a series cleaning up the driver
so we can maintain it going forward.

Most patches are modernizations, using new frameworks and
helpers.

The expensive self tests are passing fine after this series.

I think it is a bit too big to backport to stable :/
But please put it in as non-urgent fix.

If this goes well the plan is to do the same for the crypto
driver which has all the same problems.

ChangeLog v1->v2:
- Iron out some minor runtime bugs.
- Fix a regmap initialization error.
- Fix up to use runtime PM and drop custom power states.

Linus Walleij (15):
  crypto: ux500/hash: Pass ctx to hash_setconfiguration()
  crypto: ux500/hash: Get rid of custom device list
  crypto: ux500/hash: Pass context to zero message digest
  crypto: ux500/hash: Drop custom state save/restore
  crypto: ux500/hash: Drop bit index
  crypto: ux500/hash: Break while/do instead of if/else
  crypto: ux500/hash: Rename and switch type of member
  crypto: ux500/hash: Stop saving/restoring compulsively
  crypto: ux500/hash: Get rid of state from request context
  crypto: ux500/hash: Implement .export and .import
  crypto: ux500/hash: Drop custom uint64 type
  crypto: ux500/hash: Drop regulator handling
  crypto: ux500/hash: Convert to regmap MMIO
  crypto: ux500/hash: Use AMBA core primecell IDs
  crypto: ux500/hash: Implement runtime PM

 drivers/crypto/ux500/Kconfig          |    1 +
 drivers/crypto/ux500/hash/hash_alg.h  |  262 ++----
 drivers/crypto/ux500/hash/hash_core.c | 1154 ++++++++++---------------
 3 files changed, 536 insertions(+), 881 deletions(-)