| Message ID | 20190302134735.4393-2-wsa+renesas@sang-engineering.com (mailing list archive) |
|---|---|
| State | RFC, archived |
| Headers | show |
| Series | i2c: core: introduce atomic transfers | expand |
On Sat, Mar 02, 2019 at 02:47:29PM +0100, Wolfram Sang wrote: > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> > --- > include/linux/i2c.h | 23 +++++++++++++---------- > 1 file changed, 13 insertions(+), 10 deletions(-) > > diff --git a/include/linux/i2c.h b/include/linux/i2c.h > index 383510b4f083..758a6db864c9 100644 > --- a/include/linux/i2c.h > +++ b/include/linux/i2c.h > @@ -517,20 +517,23 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info, > * Documentation file Documentation/i2c/fault-codes. > */ > struct i2c_algorithm { > - /* If an adapter algorithm can't do I2C-level access, set master_xfer > - to NULL. If an adapter algorithm can do SMBus access, set > - smbus_xfer. If set to NULL, the SMBus protocol is simulated > - using common I2C messages */ > - /* master_xfer should return the number of messages successfully > - processed, or a negative value on error */ > + /* > + * If an adapter algorithm can't do I2C-level access, set master_xfer > + * to NULL. If an adapter algorithm can do SMBus access, set > + * smbus_xfer. If set to NULL, the SMBus protocol is simulated > + * using common I2C messages. > + * > + * master_xfer should return the number of messages successfully > + * processed, or a negative value on error > + */ > int (*master_xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs, > int num); > - int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, > - unsigned short flags, char read_write, > - u8 command, int size, union i2c_smbus_data *data); > + int (*smbus_xfer)(struct i2c_adapter *adap, u16 addr, > + unsigned short flags, char read_write, > + u8 command, int size, union i2c_smbus_data *data); > > /* To determine what the adapter supports */ > - u32 (*functionality) (struct i2c_adapter *); > + u32 (*functionality)(struct i2c_adapter *adap); > > #if IS_ENABLED(CONFIG_I2C_SLAVE) > int (*reg_slave)(struct i2c_client *client); > -- > 2.11.0 >
On Sat, Mar 02, 2019 at 02:47:29PM +0100, Wolfram Sang wrote:
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
I think this preparational patch can be applied right away.
Applied to for-next, thanks!
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 383510b4f083..758a6db864c9 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -517,20 +517,23 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info, * Documentation file Documentation/i2c/fault-codes. */ struct i2c_algorithm { - /* If an adapter algorithm can't do I2C-level access, set master_xfer - to NULL. If an adapter algorithm can do SMBus access, set - smbus_xfer. If set to NULL, the SMBus protocol is simulated - using common I2C messages */ - /* master_xfer should return the number of messages successfully - processed, or a negative value on error */ + /* + * If an adapter algorithm can't do I2C-level access, set master_xfer + * to NULL. If an adapter algorithm can do SMBus access, set + * smbus_xfer. If set to NULL, the SMBus protocol is simulated + * using common I2C messages. + * + * master_xfer should return the number of messages successfully + * processed, or a negative value on error + */ int (*master_xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); - int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, - unsigned short flags, char read_write, - u8 command, int size, union i2c_smbus_data *data); + int (*smbus_xfer)(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data *data); /* To determine what the adapter supports */ - u32 (*functionality) (struct i2c_adapter *); + u32 (*functionality)(struct i2c_adapter *adap); #if IS_ENABLED(CONFIG_I2C_SLAVE) int (*reg_slave)(struct i2c_client *client);
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> --- include/linux/i2c.h | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)