[ARM] 5394/1: Add static bus numbering support to i2c-versatile
If dev->id is not -1, the platform code may use static bus numbering
rather than dynamic. The patch also changes the i2c_versatile_init to a
subsys_initcall rather than module_init to make sure it is initialised
before the I2C devices initialisation.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/i2c/busses/i2c-versatile.c b/drivers/i2c/busses/i2c-versatile.c
index 4678bab..fede619 100644
--- a/drivers/i2c/busses/i2c-versatile.c
+++ b/drivers/i2c/busses/i2c-versatile.c
@@ -102,7 +102,13 @@
i2c->algo = i2c_versatile_algo;
i2c->algo.data = i2c;
- ret = i2c_bit_add_bus(&i2c->adap);
+ if (dev->id >= 0) {
+ /* static bus numbering */
+ i2c->adap.nr = dev->id;
+ ret = i2c_bit_add_numbered_bus(&i2c->adap);
+ } else
+ /* dynamic bus numbering */
+ ret = i2c_bit_add_bus(&i2c->adap);
if (ret >= 0) {
platform_set_drvdata(dev, i2c);
return 0;
@@ -146,7 +152,7 @@
platform_driver_unregister(&i2c_versatile_driver);
}
-module_init(i2c_versatile_init);
+subsys_initcall(i2c_versatile_init);
module_exit(i2c_versatile_exit);
MODULE_DESCRIPTION("ARM Versatile I2C bus driver");