Debugfs operations may set the page number, which must be done
atomically with the subsequent i2c operation. Lock the update_lock
in the debugfs functions and provide a function for pmbus drivers
to lock and unlock the update_lock.
Use the new lock/unlock functions in the ibm-cffps driver and make
some additional improvements.

Eddie James (2):
  hwmon: (pmbus/core) Add lock and unlock functions
  hwmon: (pmbus/ibm-cffps) Use default debugfs attributes and lock
    function

 drivers/hwmon/pmbus/ibm-cffps.c  | 273 +++++++++++++------------------
 drivers/hwmon/pmbus/pmbus.h      |   2 +
 drivers/hwmon/pmbus/pmbus_core.c |  30 ++++
 3 files changed, 150 insertions(+), 155 deletions(-)

-- 
2.31.1