[0/9] Introduce Photonicat power management MCU driver

Initial support for the power management MCU in the Ariaboard Photonicat
This patch series depends on Add support for Ariaboard Photonicat RK3568 [1]

Currently implemented features:
  Implement serial communication protocol with MCU [2].
  Support watchdog in MCU.
  Shutdown by power button and system notifies MCU to power-off.
  Read charger and battery supply voltage and simply calculate capacity.
  Read board temperature sensor.
  Set status of the network status LED.
  Read and set the MCU real-time clock date time.

[1] https://lore.kernel.org/linux-arm-kernel/20240906045706.1004813-1-bigfoot@classfun.cn/
[2] https://photonicat.com/wiki/PMU_Protocol

Junhao Xie (9):
  mfd: Add driver for Photonicat power management MCU
  power: reset: add Photonicat PMU poweroff driver
  watchdog: Add Photonicat PMU watchdog driver
  power: supply: photonicat-supply: Add Photonicat PMU battery and
    charger
  rtc: Add Photonicat PMU real-time clock
  hwmon: Add support for Photonicat PMU board temperature sensor
  leds: add Photonicat PMU LED driver
  dt-bindings: Add documentation for Photonicat PMU
  arm64: dts: rockchip: add Photonicat PMU support for Ariaboard
    Photonicat

 .../hwmon/ariaboard,photonicat-pmu-hwmon.yaml |  40 ++
 .../leds/ariaboard,photonicat-pmu-leds.yaml   |  41 ++
 .../mfd/ariaboard,photonicat-pmu.yaml         | 107 ++++
 .../ariaboard,photonicat-pmu-poweroff.yaml    |  34 ++
 .../ariaboard,photonicat-pmu-supply.yaml      |  55 ++
 .../rtc/ariaboard,photonicat-pmu-rtc.yaml     |  37 ++
 .../ariaboard,photonicat-pmu-watchdog.yaml    |  37 ++
 .../boot/dts/rockchip/rk3568-photonicat.dts   |  43 ++
 drivers/hwmon/Kconfig                         |  10 +
 drivers/hwmon/Makefile                        |   1 +
 drivers/hwmon/photonicat-hwmon.c              | 129 +++++
 drivers/leds/Kconfig                          |  11 +
 drivers/leds/Makefile                         |   1 +
 drivers/leds/leds-photonicat.c                |  75 +++
 drivers/mfd/Kconfig                           |  13 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/photonicat-pmu.c                  | 501 ++++++++++++++++++
 drivers/power/reset/Kconfig                   |  12 +
 drivers/power/reset/Makefile                  |   1 +
 drivers/power/reset/photonicat-poweroff.c     |  95 ++++
 drivers/power/supply/Kconfig                  |  12 +
 drivers/power/supply/Makefile                 |   1 +
 drivers/power/supply/photonicat-supply.c      | 250 +++++++++
 drivers/rtc/Kconfig                           |  12 +
 drivers/rtc/Makefile                          |   1 +
 drivers/rtc/rtc-photonicat.c                  | 190 +++++++
 drivers/watchdog/Kconfig                      |  12 +
 drivers/watchdog/Makefile                     |   1 +
 drivers/watchdog/photonicat-wdt.c             | 124 +++++
 include/linux/mfd/photonicat-pmu.h            |  86 +++
 30 files changed, 1933 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/ariaboard,photonicat-pmu-hwmon.yaml
 create mode 100644 Documentation/devicetree/bindings/leds/ariaboard,photonicat-pmu-leds.yaml
 create mode 100644 Documentation/devicetree/bindings/mfd/ariaboard,photonicat-pmu.yaml
 create mode 100644 Documentation/devicetree/bindings/power/reset/ariaboard,photonicat-pmu-poweroff.yaml
 create mode 100644 Documentation/devicetree/bindings/power/supply/ariaboard,photonicat-pmu-supply.yaml
 create mode 100644 Documentation/devicetree/bindings/rtc/ariaboard,photonicat-pmu-rtc.yaml
 create mode 100644 Documentation/devicetree/bindings/watchdog/ariaboard,photonicat-pmu-watchdog.yaml
 create mode 100644 drivers/hwmon/photonicat-hwmon.c
 create mode 100644 drivers/leds/leds-photonicat.c
 create mode 100644 drivers/mfd/photonicat-pmu.c
 create mode 100644 drivers/power/reset/photonicat-poweroff.c
 create mode 100644 drivers/power/supply/photonicat-supply.c
 create mode 100644 drivers/rtc/rtc-photonicat.c
 create mode 100644 drivers/watchdog/photonicat-wdt.c
 create mode 100644 include/linux/mfd/photonicat-pmu.h

On 2024/9/8 17:30, Chukun Pan wrote:
>> Initial support for the power management MCU in the Ariaboard Photonicat
>> This patch series depends on Add support for Ariaboard Photonicat RK3568 [1]
> 
> The official website says it's "Renesas RA2E1 cortex M23 ultra-low power MCU"
> Perhaps renaming the 'Photonicat MCU' to 'Renesas RA2E1 MCU' would be better?

Renesas RA2E1 is a MCU product line, and Ariaboard wrote firmware for this MCU.
Maybe "Renesas RA2E1 MCU in Photonicat" would be better?


Best regards,
Junhao