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

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Message-Id: <20220223175908.191618-1-luca@lucaceresoli.net>
Date:   Wed, 23 Feb 2022 18:59:00 +0100
From:   Luca Ceresoli <luca@...aceresoli.net>
To:     linux-kernel@...r.kernel.org
Cc:     Luca Ceresoli <luca@...aceresoli.net>,
        Lee Jones <lee.jones@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>, devicetree@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: [PATCH v6 0/8] Add MAX77714 PMIC minimal driver (RTC and watchdog only)

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

-- 
2.25.1