i2c-algo-bit: Add i2c_bit_add_numbered_bus

Add i2c_bit_add_numbered_bus(), which is equivalent to i2c_bit_add_bus
except that it calls i2c_add_numbered_adapter() at the end instead of
i2c_add_adapter().

Signed-off-by: Jean Delvare <khali@linux-fr.org>

2 files changed, 25 insertions, 1 deletions

diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index fcef6ff3d287..fc16f9d268a3 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -540,7 +540,7 @@ static const struct i2c_algorithm i2c_bit_algo = {
 /* 
  * registering functions to load algorithms at runtime 
  */
-int i2c_bit_add_bus(struct i2c_adapter *adap)
+static int i2c_bit_prepare_bus(struct i2c_adapter *adap)
 {
         struct i2c_algo_bit_data *bit_adap = adap->algo_data;
 
@@ -558,10 +558,33 @@ int i2c_bit_add_bus(struct i2c_adapter *adap)
         adap->timeout = 100;    /* default values, should       */
         adap->retries = 3;      /* be replaced by defines       */
 
+        return 0;
+}
+
+int i2c_bit_add_bus(struct i2c_adapter *adap)
+{
+        int err;
+
+        err = i2c_bit_prepare_bus(adap);
+        if (err)
+                return err;
+
         return i2c_add_adapter(adap);
 }
 EXPORT_SYMBOL(i2c_bit_add_bus);
 
+int i2c_bit_add_numbered_bus(struct i2c_adapter *adap)
+{
+        int err;
+
+        err = i2c_bit_prepare_bus(adap);
+        if (err)
+                return err;
+
+        return i2c_add_numbered_adapter(adap);
+}
+EXPORT_SYMBOL(i2c_bit_add_numbered_bus);
+
 MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
 MODULE_DESCRIPTION("I2C-Bus bit-banging algorithm");
 MODULE_LICENSE("GPL");
diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h
index 937da70cb4c4..d91dab886357 100644
--- a/include/linux/i2c-algo-bit.h
+++ b/include/linux/i2c-algo-bit.h
@@ -44,5 +44,6 @@ struct i2c_algo_bit_data {
 };
 
 int i2c_bit_add_bus(struct i2c_adapter *);
+int i2c_bit_add_numbered_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_BIT_H */