sparc: Add mutex for set property calls.

Browse source

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>

...

This commit is contained in:

David S. Miller 2008-08-19 21:56:35 -07:00

parent 072bd413b8

commit 2481d76615

3 changed files with 14 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/sparc/include/asm/prom.h

View file

6

arch/sparc/kernel/prom.c

View file

6

arch/sparc64/kernel/prom.c

View file