| Message ID | 20200812142055.9213-1-alexandru.tachici@analog.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | hwmon: pmbus: adm1266: add support | expand |
On Wed, Aug 12, 2020 at 05:20:49PM +0300, alexandru.tachici@analog.com wrote: > From: Alexandru Tachici <alexandru.tachici@analog.com> > > 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. > Series applied. Thanks, Guenter
From: Alexandru Tachici <alexandru.tachici@analog.com> 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 Write-Read Process Call 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. Allow the current sate of the sequencer to be read through debugfs. 5. Blackboxes 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. DT bindings for ADM1266. Alexandru Tachici (6): hwmon: pmbus: adm1266: add support hwmon: pmbus: adm1266: Add Block process call hwmon: pmbus: adm1266: Add support for GPIOs hwmon: pmbus: adm1266: add debugfs for states hwmon: pmbus: adm1266: read blackbox dt-bindings: hwmon: Add bindings for ADM1266 Changelog v7 -> v8: - removed firmware/config programming - in adm1266_pmbus_block_xfer unlock buf mutex on error paths - added "depends on GPIOLIB" in kconfig ("select GPIOLIB" triggers a recursive dependency error) - removed cell access check (only blackbox cell will be used) - removed #if IS_ENABLED(CONFIG_NVMEM) - dt-bindings: removed adi,master-adm1266 property .../bindings/hwmon/adi,adm1266.yaml | 51 ++ Documentation/hwmon/adm1266.rst | 37 ++ Documentation/hwmon/index.rst | 1 + drivers/hwmon/pmbus/Kconfig | 11 + drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/adm1266.c | 513 ++++++++++++++++++ 6 files changed, 614 insertions(+) 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