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    Subject[PATCH v4 8/8] Documentation/ABI: Add documentation mlxreg-io sysfs interfaces
    Date
    Add documentation for mlxreg-io driver sysfs interfaces for user space
    access to system's power resets control, reset causes monitoring,
    programmable devices version reading and devices selection control.

    Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
    ---
    v4:
    Comments pointed out by Greg:
    Add Documentation/ABI/ entries for the new sysfs files.
    ---
    Documentation/ABI/stable/sysfs-driver-mlxreg-io | 51 +++++++++++++++++++++++++
    1 file changed, 51 insertions(+)
    create mode 100644 Documentation/ABI/stable/sysfs-driver-mlxreg-io

    diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
    new file mode 100644
    index 0000000..fcd659e
    --- /dev/null
    +++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
    @@ -0,0 +1,51 @@
    +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
    + cause_aux_pwr_or_ref
    + cause_asic_thermal
    + cause_hotswap_or_wd
    + cause_fw_reset
    + cause_long_pb
    + cause_main_pwr_fail
    + cause_short_pb
    + cause_sw_reset
    +Date: May 2018
    +KernelVersion: 4.18
    +Contact: Vadim Pasternak <vadimpmellanox.com>
    +Description: These files show the system reset cause, as following: power
    + auxiliary outage or power refresh, ASIC thermal shutdown,
    + hotswap or watchdog, firmware reset, long press power button,
    + short press power button, software reset. Value 1 in file means
    + this is reset cause, 0 - otherwise. Only one of the above
    + causes could be 1 at the same time, representing only last
    + reset cause.
    +
    + The files are read only.
    +
    +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
    + cpld1_version
    + cpld2_version
    +Date: May 2018
    +KernelVersion: 4.18
    +Contact: Vadim Pasternak <vadimpmellanox.com>
    +Description: These files show with which CPLD versions have been burned
    + on carrier and switch boards.
    +
    + The files are read only.
    +
    +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
    +Date: May 2018
    +KernelVersion: 4.18
    +Contact: Vadim Pasternak <vadimpmellanox.com>
    +Description: This file allows iio devices selection.
    +
    + The file is read/write.
    +
    +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
    + /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
    + /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
    +Date: May 2018
    +KernelVersion: 4.18
    +Contact: Vadim Pasternak <vadimpmellanox.com>
    +Description: These files allow assert system's power cycling and PS units
    + on/off switching.
    +
    + The files are write only.
    --
    2.1.4
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