From: Alexandru Tachici <alexandru.tachici@xxxxxxxxxx> Add PMBus probing driver for the adm1266 Cascadable Super Sequencer with Margin Control and Fault Recording. Driver is using the pmbus_core, creating sysfs files under hwmon for inputs: vh1->vh4 and vp1->vp13. 1. Add PMBus probing driver for inputs vh1->vh4 and vp1->vp13. 2. Add Block WR command. A pmbus specific implementation was required because block write with I2C_SMBUS_PROC_CALL flag allows a maximum of 32 bytes to be received. 3. This makes adm1266 driver expose GPIOs to user-space. Currently are read only. Future developments on the firmware will allow them to be writable. 4. Add debugfs files for go_command and read_state. 5. Blakcboxes are 64 bytes of chip state related data that is generated on faults. Use the nvmem kernel api to expose the blackbox chip functionality to userspace. 6. Device tree bindings for ADM1266. Alexandru Tachici (6): hwmon: pmbus: adm1266: add support hwmon: (pmbus/core) Add Block WR hwmon: pmbus: adm1266: Add support for GPIOs hwmon: pmbus: adm1266: add debugfs attr for states hwmon: pmbus: adm1266: read blackbox dt-bindings: hwmon: Add bindings for ADM1266 Changelog v2 -> v3: - added block write-read process call in pmbus-core - expose GPIOs/PDIOs to user-space as readonly - allow the user to issue commands to adm1266 in go_command debugfs file - allow the user to read state of the adm1266 sequencer from debugfs file read_state - chip generated blackboxes can now be read from the nvmem file .../bindings/hwmon/adi,adm1266.yaml | 56 ++ Documentation/hwmon/adm1266.rst | 35 ++ drivers/hwmon/pmbus/Kconfig | 11 +- drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/adm1266.c | 500 ++++++++++++++++++ drivers/hwmon/pmbus/pmbus.h | 4 + drivers/hwmon/pmbus/pmbus_core.c | 88 +++ 7 files changed, 694 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/hwmon/adi,adm1266.yaml create mode 100644 Documentation/hwmon/adm1266.rst create mode 100644 drivers/hwmon/pmbus/adm1266.c -- 2.20.1
