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authorCatalin Marinas <catalin.marinas@arm.com>2009-02-12 15:57:20 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-19 11:30:22 +0000
commit2514cca06be9dc7ae12908085ebaf0ef49e6d8ae (patch)
tree912c6b59bf5d82f8bd0e24a6ffe787c670bba4f2 /drivers/i2c
parenteab184c2362567f2b2e951b7bd0e0d353a7e5091 (diff)
[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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-versatile.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-versatile.c b/drivers/i2c/busses/i2c-versatile.c
index 4678babd3ce..fede619ba22 100644
--- a/drivers/i2c/busses/i2c-versatile.c
+++ b/drivers/i2c/busses/i2c-versatile.c
@@ -102,7 +102,13 @@ static int i2c_versatile_probe(struct platform_device *dev)
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 @@ static void __exit i2c_versatile_exit(void)
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");