mbox series

[v1,0/6] Support ROHM BD96801 scalable PMIC

Message ID cover.1714478142.git.mazziesaccount@gmail.com (mailing list archive)
Headers show
Series Support ROHM BD96801 scalable PMIC | expand

Message

Matti Vaittinen April 30, 2024, 11:59 a.m. UTC 
Support ROHM BD96801 "scalable" PMIC.

The ROHM BD96801 is automotive grade PMIC, intended to be usable in
multiple solutions. The BD96801 can be used as a stand-alone, or together
with separate 'companion PMICs'. This modular approach aims to make this
PMIC suitable for various use-cases.

This series brings only limited support. The more complete set of
features was sent in the RFC:
https://lore.kernel.org/lkml/cover.1712058690.git.mazziesaccount@gmail.com/

As writing of this there is no known system using the ERRB interrupts,
or doing configurations which require the PMIC to be in STBY state using
Linux driver. Hence it felt natural to upstream only partial support for
now, while leaving a note about the RFC series with more complete
support for those who may need it later.

Revision history still tries to summarize changes from the RFC for the
reviewers.

Revision history:
RFCv2 => v1:
	- Drop ERRB IRQ from drivers (but not DT bindings).
	- Drop configuration which requires STBY - state.
	- Fix the register lock race by moving it from the regulator
	  driver to the MFD driver.
	- Fix watchdog timeout handling

RFCv1 => RFCv2:
	- Tidying code based on feedback form Krzysztof Kozlowski and
	  Lee Jones.
	- Documented undocumented watchdog related DT properties.
	- Added usage of the watchdog IRQ.
	- Use irq_domain_update_bus_token() to work-around debugFS name
	  collision for IRQ domains.

---


Matti Vaittinen (6):
  dt-bindings: ROHM BD96801 PMIC regulators
  dt-bindings: mfd: bd96801 PMIC core
  mfd: support ROHM BD96801 PMIC core
  regulator: bd96801: ROHM BD96801 PMIC regulators
  watchdog: ROHM BD96801 PMIC WDG driver
  MAINTAINERS: Add ROHM BD96801 'scalable PMIC' entries

 .../bindings/mfd/rohm,bd96801-pmic.yaml       | 172 ++++
 .../regulator/rohm,bd96801-regulator.yaml     |  62 ++
 MAINTAINERS                                   |   4 +
 drivers/mfd/Kconfig                           |  13 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/rohm-bd96801.c                    | 278 ++++++
 drivers/regulator/Kconfig                     |  12 +
 drivers/regulator/Makefile                    |   2 +
 drivers/regulator/bd96801-regulator.c         | 896 ++++++++++++++++++
 drivers/watchdog/Kconfig                      |  13 +
 drivers/watchdog/Makefile                     |   1 +
 drivers/watchdog/bd96801_wdt.c                | 400 ++++++++
 include/linux/mfd/rohm-bd96801.h              | 215 +++++
 include/linux/mfd/rohm-generic.h              |   1 +
 14 files changed, 2070 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd96801-pmic.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml
 create mode 100644 drivers/mfd/rohm-bd96801.c
 create mode 100644 drivers/regulator/bd96801-regulator.c
 create mode 100644 drivers/watchdog/bd96801_wdt.c
 create mode 100644 include/linux/mfd/rohm-bd96801.h


base-commit: 4cece764965020c22cff7665b18a012006359095