From: Zi-Yu Chen <zychennvt@gmail.com>
To: Jacky Huang <ychuang3@nuvoton.com>, Andi Shyti <andi.shyti@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Zi-Yu Chen <zychennvt@gmail.com>
Subject: [PATCH v3 0/3] i2c: ma35d1: Add support for MA35D1 I2C controller
Date: Tue, 12 May 2026 15:39:50 +0800 [thread overview]
Message-ID: <20260512073953.564323-1-zychennvt@gmail.com> (raw)
This series adds support for the I2C controller found in the Nuvoton
MA35D1 SoC. The driver supports controller and optional target mode
and runtime power management.
The implementation has been tested on the Nuvoton MA35D1 SOM board.
Changes in v3:
- Fix minor DTS formatting issues (whitespace, missing newline)
v2: https://lore.kernel.org/r/20260316063726.41048-1-zychennvt@gmail.com
Changes in v2:
- Overall:
- Rebase on linux-i2c/i2c-next
- Switched terminology from "master/slave" to "controller/target".
- Patch 1 (dt-bindings):
- Simplified description and fixed 'reg' size in example.
- Patch 2 (driver):
- Modernized using devm_*, generic device properties, and FIELD_PREP/GENMASK.
- Optimized power management by moving clock control to runtime PM.
- Simplified code by removing redundant .remove(), .owner, and inlines.
- Added dev_err_probe() and default bus frequency handling.
- Patch 3 (dts):
- Moved i2c aliases to board dts and reordered nodes alphabetically.
v1: https://lore.kernel.org/r/20260302020822.13936-1-zychennvt@gmail.com
Zi-Yu Chen (3):
dt-bindings: i2c: nuvoton,ma35d1-i2c: Add MA35D1 I2C controller
i2c: ma35d1: Add Nuvoton MA35D1 I2C driver support
arm64: dts: nuvoton: Add I2C nodes for MA35D1 SoC
.../bindings/i2c/nuvoton,ma35d1-i2c.yaml | 63 ++
.../boot/dts/nuvoton/ma35d1-som-256m.dts | 15 +
arch/arm64/boot/dts/nuvoton/ma35d1.dtsi | 60 ++
drivers/i2c/busses/Kconfig | 13 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-ma35d1.c | 792 ++++++++++++++++++
6 files changed, 944 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/nuvoton,ma35d1-i2c.yaml
create mode 100644 drivers/i2c/busses/i2c-ma35d1.c
--
2.34.1
next reply other threads:[~2026-05-12 7:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 7:39 Zi-Yu Chen [this message]
2026-05-12 7:39 ` [PATCH v3 1/3] dt-bindings: i2c: nuvoton,ma35d1-i2c: Add MA35D1 I2C controller Zi-Yu Chen
2026-05-12 7:39 ` [PATCH v3 2/3] i2c: ma35d1: Add Nuvoton MA35D1 I2C driver support Zi-Yu Chen
2026-05-12 7:39 ` [PATCH v3 3/3] arm64: dts: nuvoton: Add I2C nodes for MA35D1 SoC Zi-Yu Chen
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