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[ARM] 5394/1: Add static bus numbering support to i2c-versatile

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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>
This commit is contained in:
Catalin Marinas 2009-02-12 15:57:20 +01:00 committed by Russell King
parent eab184c236
commit 2514cca06b
1 changed files with 8 additions and 2 deletions
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10
drivers/i2c/busses/i2c-versatile.c
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@ -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");