i2c: header: remove unneeded stuff regarding i2c_algorithm

The forward declaration is not needed anymore. The sentence about
"following structs" became obsolete when struct i2c_algorithm became a
kdoc. The paragraph about return values can go because we have this
information in kdoc already.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index e9cc14b1f9a1078adada872618bc4f90b4a092c1..1e34b486f60452fd1011785efeddd276a2a1528f 100644 (file)
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -30,7 +30,6 @@ extern const struct device_type i2c_client_type;
 /* --- General options ------------------------------------------------        */
 
 struct i2c_msg;
-struct i2c_algorithm;
 struct i2c_adapter;
 struct i2c_client;
 struct i2c_driver;
@@ -533,8 +532,6 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info,
  * @reg_slave: deprecated, use @reg_target
  * @unreg_slave: deprecated, use @unreg_target
  *
- *
- * The following structs are for those who like to implement new bus drivers:
  * i2c_algorithm is the interface to a class of hardware solutions which can
  * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584
  * to name two of the most common.
@@ -550,9 +547,6 @@ struct i2c_algorithm {
         * 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.
-        *
-        * xfer should return the number of messages successfully
-        * processed, or a negative value on error
         */
        union {
                int (*xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs,