[RFC 0/8] mfd: Add support for Khadas Microcontroller
From: Neil Armstrong
Date: Tue Apr 21 2020 - 04:01:09 EST
The new Khadas VIM2, VIM3 and Edge boards embeds an on-board microcontroller
connected via I2C.
This Microcontroller is present on the Khadas VIM1, VIM2, VIM3 and Edge
boards.
It has multiple boot control features like password check, power-on
options, power-off control and system FAN control on recent boards.
Thie serie adds :
- the bindings
- the MFD driver
- the HWMON cell driver
- the NVMEM cell driver
- updates MAINTAINERS
- add support into the Khadas VIM3/VIM3L DT
Neil Armstrong (8):
dt-bindings: mfd: add Khadas Microcontroller bindings
mfd: add support for the Khadas System control Microcontroller
hwmon: add support for the MCU controlled FAN on Khadas boards
nvmem: add support for the Khadas MCU Programmable User Memory
MAINTAINERS: add myself as maintainer for Khadas MCU drivers
arm64: dts: meson-g12b: move G12B thermal nodes to meson-g12b.dtsi
arm64: dts: meson-sm1: add cpu thermal nodes
arm64: dts: meson-khadas-vim3: add Khadas MCU nodes
.../devicetree/bindings/mfd/khadas,mcu.yaml | 44 ++++
MAINTAINERS | 11 +
arch/arm64/boot/dts/amlogic/meson-g12.dtsi | 23 --
arch/arm64/boot/dts/amlogic/meson-g12b.dtsi | 22 ++
.../boot/dts/amlogic/meson-khadas-vim3.dtsi | 23 ++
arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 24 ++
drivers/hwmon/Kconfig | 9 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/khadas-mcu-fan.c | 230 ++++++++++++++++++
drivers/mfd/Kconfig | 14 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/khadas-mcu.c | 143 +++++++++++
drivers/nvmem/Kconfig | 8 +
drivers/nvmem/Makefile | 2 +
drivers/nvmem/khadas-mcu-user-mem.c | 128 ++++++++++
include/linux/mfd/khadas-mcu.h | 91 +++++++
16 files changed, 751 insertions(+), 23 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
create mode 100644 drivers/hwmon/khadas-mcu-fan.c
create mode 100644 drivers/mfd/khadas-mcu.c
create mode 100644 drivers/nvmem/khadas-mcu-user-mem.c
create mode 100644 include/linux/mfd/khadas-mcu.h
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2.22.0