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Add RK801 PMIC support

From:  Joseph Chen <chenjh-AT-rock-chips.com>
To:  lee-AT-kernel.org, lgirdwood-AT-gmail.com, broonie-AT-kernel.org, robh-AT-kernel.org, krzk+dt-AT-kernel.org, conor+dt-AT-kernel.org
Subject:  [PATCH v1 0/2] Add RK801 PMIC support
Date:  Wed, 31 Dec 2025 11:09:49 +0800
Message-ID:  <20251231030951.818-1-chenjh@rock-chips.com>
Cc:  linux-kernel-AT-vger.kernel.org, linux-rockchip-AT-lists.infradead.org, Joseph Chen <chenjh-AT-rock-chips.com>
Archive-link:  Article

This patch series adds support for the Rockchip RK801 Power Management
Integrated Circuit (PMIC) to the Linux kernel.

The RK801 is a PMIC designed for multimedia and handheld devices. It
includes:
- 4 BUCK regulators (DCDC)
- 2 LDO regulators
- 1 SWITCH regulator
- Interrupt support for power key events

The implementation follows the existing rk808 MFD driver architecture
and integrates RK801 as a new variant in the RK8XX family.

Patch 1 adds the device tree binding documentation for RK801, describing
the compatible string, regulators configuration, and example usage.

Patch 2 adds the rk801 driver support.

Joseph Chen (2):
  dt-bindings: mfd: Add rk801 binding
  mfd: rk808: Add RK801 support

 .../bindings/mfd/rockchip,rk801.yaml          | 199 ++++++++++++++
 drivers/mfd/Kconfig                           |   6 +-
 drivers/mfd/rk8xx-core.c                      |  81 ++++++
 drivers/mfd/rk8xx-i2c.c                       |  33 ++-
 drivers/regulator/rk808-regulator.c           | 243 ++++++++++++++++++
 include/linux/mfd/rk808.h                     | 118 +++++++++
 6 files changed, 676 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk801.yaml

-- 
2.25.1




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