tree 2d047756426224d741388b4c557151f9a7cb8335
parent 072bd413b88c17509c7aa7dbc398ab8bade633b3
author David S. Miller <davem@davemloft.net> 1219208195 -0700
committer David S. Miller <davem@davemloft.net> 1219635235 -0700

sparc: Add mutex for set property calls.

On some platforms, the I2C controller is shared between the OS and
OBP.  OBP uses this I2C controller to access the EEPROM, and thus is
programmed when the kernel calls prom_setprop().

Wrap such calls with the new of_set_property_mutex.

Relevant I2C bus drivers can grab this mutex around top-level I2C
operations to provide the proper protection.

Signed-off-by: David S. Miller <davem@davemloft.net>