[PATCH v6 0/8] Add MAX77714 PMIC minimal driver (RTC and watchdog only)

From: Luca Ceresoli
Date: Wed Feb 23 2022 - 12:59:26 EST


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.

This is almost a bare resend of v5. Changes are minimal, trivial and only
in comments (see list below).

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

Patches 1-3 are trivial cleanups to the max77686 drivers.

Patches 4-8 add dt bindings, mfd driver, watchdog driver and rtc driver.

Changes in v6:
- patch 6: removed, now in mainline
- patch 5: describe as "Core driver", not "MFD driver" in comment
(Lee Jones)
- update copyright years
- add review tags

Changes in v5:
- patch 7: fix (and simplify) watchdog_info code
- patch 8: remove amibguity in comment

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 (8):
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: 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 | 2 +-
drivers/watchdog/max77620_wdt.c | 85 ++++++++--
include/linux/mfd/max77686-private.h | 4 +-
include/linux/mfd/max77714.h | 60 +++++++
12 files changed, 421 insertions(+), 51 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

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2.25.1