On Mon, 09 Feb 2009 18:03:38 +0000, Catalin Marinas wrote:
> 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 <[email protected]>
> Cc: Russell King <[email protected]>
> ---
> drivers/i2c/busses/i2c-versatile.c | 11 +++++++++--
> 1 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-versatile.c
> b/drivers/i2c/busses/i2c-versatile.c
> index 4678bab..15b5e8a 100644
> --- a/drivers/i2c/busses/i2c-versatile.c
> +++ b/drivers/i2c/busses/i2c-versatile.c
> @@ -96,13 +96,20 @@ static int i2c_versatile_probe(struct platform_device
> *dev)
> writel(SCL | SDA, i2c->base + I2C_CONTROLS);
>
> i2c->adap.owner = THIS_MODULE;
> + if (dev->id >= 0)
> + i2c->adap.nr = dev->id;
> strlcpy(i2c->adap.name, "Versatile I2C adapter",
> sizeof(i2c->adap.name));
> i2c->adap.algo_data = &i2c->algo;
> i2c->adap.dev.parent = &dev->dev;
> i2c->algo = i2c_versatile_algo;
> i2c->algo.data = i2c;
>
> - ret = i2c_bit_add_bus(&i2c->adap);
> + if (dev->id >= 0)
> + /* static bus numbering */
> + ret = i2c_bit_add_numbered_bus(&i2c->adap);
> + else
> + /* dynamic bus numbering */
> + ret = i2c_bit_add_bus(&i2c->adap);
Why don't you merge both tests? This would simplify the code and make
it clearer.
> if (ret >= 0) {
> platform_set_drvdata(dev, i2c);
> return 0;
> @@ -146,7 +153,7 @@ 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");
--
Jean Delvare
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