diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/via/via_i2c.c | 13 | ||||
| -rw-r--r-- | drivers/video/via/via_i2c.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/video/via/via_i2c.c b/drivers/video/via/via_i2c.c index c88450ee62ba..febc1dda69c1 100644 --- a/drivers/video/via/via_i2c.c +++ b/drivers/video/via/via_i2c.c @@ -157,6 +157,19 @@ int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len return i2c_transfer(&via_i2c_par[adap].adapter, msgs, 2); } +/* + * Allow other viafb subdevices to look up a specific adapter + * by port name. + */ +struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which) +{ + struct via_i2c_stuff *stuff = &via_i2c_par[which]; + + return &stuff->adapter; +} +EXPORT_SYMBOL_GPL(viafb_find_i2c_adapter); + + static int create_i2c_bus(struct i2c_adapter *adapter, struct i2c_algo_bit_data *algo, struct via_port_cfg *adap_cfg, diff --git a/drivers/video/via/via_i2c.h b/drivers/video/via/via_i2c.h index 1d18e7d57b7f..44532e468c05 100644 --- a/drivers/video/via/via_i2c.h +++ b/drivers/video/via/via_i2c.h @@ -35,6 +35,7 @@ struct via_i2c_stuff { int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata); int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data); int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len); +struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which); extern int viafb_i2c_init(void); extern void viafb_i2c_exit(void); |