Add ERRB IRQ support to ROHM BD96801 PMIC driver.

The BD96801 has two IRQ pins, ERRB and INTB. ERRB is used to notify
'fatal' events so handling it has not been mandatory. However, there
are use-cases where handling the ERRB interrupts may be beneficial.

Revision history:
v1 => v2:
	- MFD: Minor styling and print improvements as was suggested
	  by Lee.
	- Regulators: Rebased, no other changes

The ERRB patches were originally part of this series:
https://lore.kernel.org/all/cover.1717486682.git.mazziesaccount@gmail.com/

Revision history in the patches refers to the old versions in that
series.

---

Matti Vaittinen (2):
  mfd: bd96801: Add ERRB IRQ
  regulator: bd96801: Add ERRB IRQ

 drivers/mfd/rohm-bd96801.c            | 275 ++++++++++++++++++++++----
 drivers/regulator/bd96801-regulator.c | 130 ++++++++++--
 2 files changed, 356 insertions(+), 49 deletions(-)


base-commit: 9852d85ec9d492ebef56dc5f229416c925758edc
-- 
2.46.2