[v4,0/9] Add MAX77714 PMIC minimal driver (RTC and watchdog only)

Message

Luca Ceresoli Nov. 20, 2021, 3:56 p.m. UTC

Hi,

this series adds minimal drivers for the Maxim Semiconductor MAX77714
(https://www.maximintegrated.com/en/products/power/power-management-ics/MAX77714.html).
Only RTC and watchdog are implemented by these patches.

All implemented functionality is tested and working: RTC read/write,
watchdog start/stop/ping/set_timeout.

Patches 1-3 + 6 are trivial cleanups to the max77686 drivers and Kconfig
indentation and can probably be applied easily.

Patches 4, 5, 7, 8 and 9 add: dt bindings, mfd driver, watchdog driver and
rtc driver.

Changes in v4:
 - do not add a new wdog driver for MAX77714, extend the MAX77620 wdog
   driver; this means removing v3 patch 7, now replaced by patches 7+8
 - added review tags

Changes in v3:
 - fixed all issues reported on v1 patches
 - removed patch 1 of v2, already applied
   ("mfd: max77686: Correct tab-based alignment of register addresses")

Changes in v2:
 - fixed all issues reported on v1 patches
 - added patch 7 ("watchdog: Kconfig: fix help text indentation")
 - additional minor improvements

Luca

Luca Ceresoli (9):
  rtc: max77686: convert comments to kernel-doc format
  rtc: max77686: rename day-of-month defines
  rtc: max77686: remove unused code to read in 12-hour mode
  dt-bindings: mfd: add Maxim MAX77714 PMIC
  mfd: max77714: Add driver for Maxim MAX77714 PMIC
  watchdog: Kconfig: fix help text indentation
  watchdog: max77620: add support for the max77714 variant
  watchdog: max77620: add comment to clarify set_timeout procedure
  rtc: max77686: add MAX77714 support

 .../bindings/mfd/maxim,max77714.yaml          |  68 ++++++++
 MAINTAINERS                                   |   7 +
 drivers/mfd/Kconfig                           |  14 ++
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/max77686.c                        |   2 +-
 drivers/mfd/max77714.c                        | 152 ++++++++++++++++++
 drivers/rtc/Kconfig                           |   2 +-
 drivers/rtc/rtc-max77686.c                    |  75 +++++----
 drivers/watchdog/Kconfig                      |  50 +++---
 drivers/watchdog/max77620_wdt.c               | 101 +++++++++---
 include/linux/mfd/max77686-private.h          |   4 +-
 include/linux/mfd/max77714.h                  |  60 +++++++
 12 files changed, 455 insertions(+), 81 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max77714.yaml
 create mode 100644 drivers/mfd/max77714.c
 create mode 100644 include/linux/mfd/max77714.h