[PATCH v3 0/4] Support ROHM BD9576MUF and BD9573MUF PMICs

From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
To: mazziesaccount@gmail.com, matti.vaittinen@fi.rohmeurope.com
Cc: Lee Jones <lee.jones@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-power@fi.rohmeurope.com, linux-watchdog@vger.kernel.org
Subject: [PATCH v3 0/4] Support ROHM BD9576MUF and BD9573MUF PMICs
Date: Tue, 29 Sep 2020 11:14:03 +0300	[thread overview]
Message-ID: <cover.1601366711.git.matti.vaittinen@fi.rohmeurope.com> (raw)

Initial support for ROHM BD9576MUF and BD9573MUF PMICs.

These PMICs are primarily intended to be used to power the R-Car family
processors. BD9576MUF includes some additional safety features the
BD9573MUF does not have. This initial version of drivers does not
utilize these features and for now the SW behaviour is identical.

This patch series includes MFD and watchdog drivers. Regulator part was
already applied.

- Enabling and pinging the watchdog
- configuring watchog timeout / window from device-tree

This patch series does not bring interrupt support. BD9576MUF and BD9573MUF
are designed to keep the IRQ line low for whole duration of error
condition. IRQ can't be 'acked'. So proper IRQ support would require
some IRQ limiter implementation (delayed unmask?) in order to not hog
the CPU.

Changelog v3:
  - use only one binding to specify watchdog time-out window.

Changelog v2:
  - dropped already applied regulator part
  - dt_bindings: Fix case for regulator-names in the example
  - watchdod: unify probe error check and revise includes

---

Matti Vaittinen (4):
  dt_bindings: mfd: Add ROHM BD9576MUF and BD9573MUF PMICs
  mfd: Support ROHM BD9576MUF and BD9573MUF
  wdt: Support wdt on ROHM BD9576MUF and BD9573MUF
  MAINTAINERS: Add ROHM BD9576MUF and BD9573MUF drivers

 .../bindings/mfd/rohm,bd9576-pmic.yaml        | 123 ++++++++
 MAINTAINERS                                   |   4 +
 drivers/mfd/Kconfig                           |  11 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/rohm-bd9576.c                     | 130 ++++++++
 drivers/watchdog/Kconfig                      |  13 +
 drivers/watchdog/Makefile                     |   1 +
 drivers/watchdog/bd9576_wdt.c                 | 290 ++++++++++++++++++
 include/linux/mfd/rohm-bd957x.h               |  59 ++++
 include/linux/mfd/rohm-generic.h              |   2 +
 10 files changed, 634 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd9576-pmic.yaml
 create mode 100644 drivers/mfd/rohm-bd9576.c
 create mode 100644 drivers/watchdog/bd9576_wdt.c
 create mode 100644 include/linux/mfd/rohm-bd957x.h

base-commit: f4d51dffc6c01a9e94650d95ce0104964f8ae822
-- 
2.21.0

-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =] 