struct i2c_adapter *adapter);
-/* (legacy) Locking functions exposed to i2c-keywest */
-extern int pmac_low_i2c_lock(struct device_node *np);
-extern int pmac_low_i2c_unlock(struct device_node *np);
-
/* Access functions for platform code */
extern int pmac_i2c_open(struct pmac_i2c_bus *bus, int polled);
extern void pmac_i2c_close(struct pmac_i2c_bus *bus);
}
EXPORT_SYMBOL_GPL(pmac_i2c_match_adapter);
-int pmac_low_i2c_lock(struct device_node *np)
-{
- struct pmac_i2c_bus *bus, *found = NULL;
-
- list_for_each_entry(bus, &pmac_i2c_busses, link) {
- if (np == bus->controller) {
- found = bus;
- break;
- }
- }
- if (!found)
- return -ENODEV;
- return pmac_i2c_open(bus, 0);
-}
-EXPORT_SYMBOL_GPL(pmac_low_i2c_lock);
-
-int pmac_low_i2c_unlock(struct device_node *np)
-{
- struct pmac_i2c_bus *bus, *found = NULL;
-
- list_for_each_entry(bus, &pmac_i2c_busses, link) {
- if (np == bus->controller) {
- found = bus;
- break;
- }
- }
- if (!found)
- return -ENODEV;
- pmac_i2c_close(bus);
- return 0;
-}
-EXPORT_SYMBOL_GPL(pmac_low_i2c_unlock);
-
-
int pmac_i2c_open(struct pmac_i2c_bus *bus, int polled)
{
int rc;