linux-kernel - [PATCH v3 0/3] regulator: da9063: disable unused voltage monitors

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Date:   Wed, 05 Apr 2023 19:14:33 +0200
From:   Benjamin Bara <bbara93@...il.com>
To:     Support Opensource <support.opensource@...semi.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, Lee Jones <lee@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Steve Twiss <stwiss.opensource@...semi.com>
Cc:     DLG-Adam.Thomson.Opensource@...renesas.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Benjamin Bara <benjamin.bara@...data.com>,
        Matti Vaittinen <mazziesaccount@...il.com>
Subject: [PATCH v3 0/3] regulator: da9063: disable unused voltage monitors

Hi!

Follow-up for my initial patch regarding the disabling of unused
voltage monitors. We use the PWR_OK functionality, which asserts GP_FB2
if every monitored voltage is in range. This patch should provide the
possibility to deactivate a voltage monitor from the DT if the regulator
might be disabled during run time. For this purpose, the regulator
notification support is used:
https://lore.kernel.org/all/cover.1622628333.git.matti.vaittinen@fi.rohmeurope.com/

v2: https://lore.kernel.org/r/20230403-da9063-disable-unused-v2-0-2f1bd2a2434a@skidata.com

---
Changelog:
v3:
2:
- add clarifications, reword XVP to voltage monitoring
- improve error messages
- ensure that only one severity is set
3:
- document that ov and uv require same severity and level

v2:
- reworked solution, based on Adam Thomson's feedback

---
Benjamin Bara (3):
      regulator: da9063: add voltage monitoring registers
      regulator: da9063: implement setter for voltage monitoring
      dt-bindings: mfd: dlg,da9063: document voltage monitoring

 .../devicetree/bindings/mfd/dlg,da9063.yaml        |  17 ++-
 drivers/regulator/da9063-regulator.c               | 147 +++++++++++++++++----
 include/linux/mfd/da9063/registers.h               |  23 ++++
 3 files changed, 157 insertions(+), 30 deletions(-)
---
base-commit: 7e364e56293bb98cae1b55fd835f5991c4e96e7d
change-id: 20230403-da9063-disable-unused-15836e2f4539

Best regards,
-- 
Benjamin Bara <benjamin.bara@...data.com>