i2c-pxa: Initialize early

Initialize the pxa i2c bus during subsystem initialization to make it
available during driver initialization (e.g. display powerup for pxafb).

Signed-off-by: Uli Luckas <u.luckas@road.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index eb69fba..78c0fc4 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -1134,5 +1134,5 @@
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:pxa2xx-i2c");
 
-module_init(i2c_adap_pxa_init);
+subsys_initcall(i2c_adap_pxa_init);
 module_exit(i2c_adap_pxa_exit);