This patchset consists of the DTS, which describes the WD MyCloud EX2 Ultra device, 'poweroff' and 'resert' drivers for power-managing MCUs connected to a board via UART (these drivers are more versatile than qnap-poweroff and could be used as a substitude), and DT bindings for these drivers.
The difference between uart-poweroff and qnap-poweroff is small, but important: uart-poweroff is able to send to an MCU a command of arbitrary length, and the command itself is defined in a DTS file for a specific device/board, thus making this driver applicable to wider range of devices. Evgeny Kolesnikov (5): power: reset: Add UART-based MCU poweroff DT bindings power: reset: Add UART-based MCU restart DT bindings power/reset: Add a power off driver for UART-based PM MCUs power/reset: Add a restart driver for UART-based PM MCUs ARM: dts: armada385-wd-mcex2u: Add DTS file for WD My Cloud EX2 Ultra .../bindings/power/reset/uart-poweroff.txt | 38 +++ .../bindings/power/reset/uart-restart.txt | 39 +++ arch/arm/boot/dts/armada-385-wd-mcex2u.dts | 313 ++++++++++++++++++ drivers/power/reset/Kconfig | 14 + drivers/power/reset/Makefile | 2 + drivers/power/reset/uart-poweroff.c | 155 +++++++++ drivers/power/reset/uart-restart.c | 204 ++++++++++++ 7 files changed, 765 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/reset/uart-poweroff.txt create mode 100644 Documentation/devicetree/bindings/power/reset/uart-restart.txt create mode 100644 arch/arm/boot/dts/armada-385-wd-mcex2u.dts create mode 100644 drivers/power/reset/uart-poweroff.c create mode 100644 drivers/power/reset/uart-restart.c -- 2.21.0
