From: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
To: Guenter Roeck <linux@roeck-us.net>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>
Cc: <linux-hwmon@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>,
"Alexis Czezar Torreno" <alexisczezar.torreno@analog.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: [PATCH v3 0/4] Add support for MAX20830C and MAX20840C step-down DC-DC switching regulator
Date: Mon, 20 Jul 2026 11:14:41 +0800 [thread overview]
Message-ID: <20260720-dev-max20830c-v3-0-9d06d27d6da3@analog.com> (raw)
This series adds a few features before adding support to MAX20830C and
MAX20840C.
Patches 1 and 2 adds new resistor feedback properties that is needed to
properly scale VOUT
Patches 3 and 4 adds support for devices MAX20830C and MAX20840C.
MAX20830C and MAX20840 are step-down DC-DC switching regulator with PMBus
interface. MAX20830C is a different packaging for MAX20830, and MAX20840C
supports 40A regulation compared to MAX20830 that is only 30A.
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
---
Changes in v3:
- Dropped patch that add EN-GPIO property in DTS
- discussed to be skippable until an actual use-case arise
- Patch 1/4:
- Carried over the completed examples from previously dropped patch
- Kept the review tag as the carried info from the dropped patched
was also reviewed.
- Patch 2/4:
- added clamping to read_vout during scaling
- improved comments regarding future regulator support
- Link to v2: https://lore.kernel.org/r/20260706-dev-max20830c-v2-0-37761e89bb5f@analog.com
Changes in v2:
- Patch 1/5: completing example
- Dropped patch adding GPIO enable in driver (no use case)
- Patch 3/5: added notes on READ_VOUT and related VOUT commands
- Patch 4/5: removed comment on fallback
- Patch 5/5: simplified device ID check handling
- Link to v1: https://lore.kernel.org/r/20260630-dev-max20830c-v1-0-a02786bde470@analog.com
---
Alexis Czezar Torreno (4):
dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties and complete examples
hwmon: (pmbus/max20830): add VOUT feedback resistor scaling support
dt-bindings: hwmon: (pmbus/max20830): add max20830c and max20840c support
hwmon: (pmbus/max20830): add support for max20830c and max20840c
.../bindings/hwmon/pmbus/adi,max20830.yaml | 28 ++++++-
Documentation/hwmon/max20830.rst | 27 +++++--
drivers/hwmon/pmbus/max20830.c | 86 ++++++++++++++++++----
3 files changed, 121 insertions(+), 20 deletions(-)
---
base-commit: 1a42625604046790ea8ec61c2a749bbf76b28943
change-id: 20260630-dev-max20830c-9d38d8b0a765
Best regards,
--
Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
next reply other threads:[~2026-07-20 3:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 3:14 Alexis Czezar Torreno [this message]
2026-07-20 3:14 ` [PATCH v3 1/4] dt-bindings: hwmon: (pmbus/max20830): add VOUT feedback resistor properties and complete examples Alexis Czezar Torreno
2026-07-20 3:41 ` Torreno, Alexis Czezar
2026-07-20 4:38 ` Rob Herring (Arm)
2026-07-20 3:14 ` [PATCH v3 2/4] hwmon: (pmbus/max20830): add VOUT feedback resistor scaling support Alexis Czezar Torreno
2026-07-20 3:14 ` [PATCH v3 3/4] dt-bindings: hwmon: (pmbus/max20830): add max20830c and max20840c support Alexis Czezar Torreno
2026-07-20 4:38 ` Rob Herring (Arm)
2026-07-20 3:14 ` [PATCH v3 4/4] hwmon: (pmbus/max20830): add support for max20830c and max20840c Alexis Czezar Torreno
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