[U-Boot] [PATCH v2 11/40] i2c: Initialize the correct bus

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

i2c_bus_init() takes a bus number but relies on the currently selected
bus to determine which adapter to initialize. Make the function use the
bus passed in as parameter rather than the currently selected bus. While
at it, keep a pointer to the specified bus to avoid having to look it up
repeatedly.

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 drivers/i2c/i2c_core.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/i2c_core.c b/drivers/i2c/i2c_core.c
index 18d6736601c1..cca455bc9c63 100644
--- a/drivers/i2c/i2c_core.c
+++ b/drivers/i2c/i2c_core.c
@@ -214,17 +214,20 @@ static int i2c_mux_disconnet_all(void)
  * Initializes one bus. Will initialize the parent adapter. No current bus
  * changes, no mux (if any) setup.
  */
-static void i2c_init_bus(unsigned int bus_no, int speed, int slaveaddr)
+static void i2c_init_bus(unsigned int bus, int speed, int slaveaddr)
 {
-	if (bus_no >= CONFIG_SYS_NUM_I2C_BUSES)
+	struct i2c_adapter *adapter;
+
+	if (bus >= CONFIG_SYS_NUM_I2C_BUSES)
 		return;
 
-	I2C_ADAP->init(I2C_ADAP, speed, slaveaddr);
+	adapter = i2c_get_adapter(I2C_ADAPTER(bus));
+	adapter->init(adapter, speed, slaveaddr);
 
 	if (gd->flags & GD_FLG_RELOC) {
-		I2C_ADAP->init_done = 1;
-		I2C_ADAP->speed = speed;
-		I2C_ADAP->slaveaddr = slaveaddr;
+		adapter->init_done = 1;
+		adapter->speed = speed;
+		adapter->slaveaddr = slaveaddr;
 	}
 }
 
-- 
2.0.4