[PATCH v4 0/3] hw/i2c: smbus: Reset fixes

[Joe Komlodi <komlodi@google.com>]

Changelog:

v3 -> v4

Patch 1
- Removed the rest of the I3CBus class definition that I forgot to
  remove in v3

v2 -> v3
Patch 1
- Removed I3CBus class definition, since it was unneeded.
- whitespace fixes
- Changed enter_reset to hold_reset

Patch 2
- Moved pointer returned by object_get_canonical_path outside of printf
  so it can be freed

Patch 3
- Changed enter_reset to hold_reset

v1 -> v2
- Dropped 4th patch "hw/i2c: smbus: mux: Reset SMBusDevice state
on reset". After more testing and Corey's comment, I realized it
wasn't needed.

Original message:

Hi all,

This series adds some resets for SMBus and for the I2C core. Along with
it, we make SMBus slave error printing a little more helpful.

These reset issues were very infrequent, they would maybe occur in 1 out
of hundreds of resets in our testing, but the way they happen is pretty
straightforward.

Basically as long as a reset happens in the middle of a transaction, the
state of the old transaction would still partially be there after the
reset. Once a new transaction comes in, the partial stale state can
cause the new transaction to incorrectly fail.

Thanks,
Joe

Joe Komlodi (3):
  hw/i2c: core: Add reset
  hw/i2c/smbus_slave: Add object path on error prints
  hw/i2c: smbus_slave: Reset state on reset

 hw/i2c/core.c        | 19 +++++++++++++++++++
 hw/i2c/smbus_slave.c | 17 +++++++++++++++--
 2 files changed, 34 insertions(+), 2 deletions(-)

-- 
2.44.0.rc0.258.g7320e95886-goog