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i2c: Dynamically assign adapter id if it wasn't explictly specified 

Commit 488bf314b ("i2c: Allow i2c_add_numbered_adapter() to assign a
bus id") reworked i2c_add_numbered_adapter() to call i2c_add_adapter()
if requested bus was -1.

This allows to simplify driver's initialization procedure by using
just one function for static and dynamic adapter id registration.

This patch updates few more drivers (missed out in original patch)
to use this functionality.

Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Karol Lewandowski 2012-03-27 11:10:28 +02:00 committed by Wolfram Sang
parent bc414b7b9b
commit 44454baa7c
3 changed files with 4 additions and 14 deletions
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7
drivers/i2c/busses/i2c-gpio.c
View File

@ -190,12 +190,7 @@ static int __devinit i2c_gpio_probe(struct platform_device *pdev)
adap->dev.parent = &pdev->dev;
adap->dev.of_node = pdev->dev.of_node;
/*
* If "dev->id" is negative we consider it as zero.
* The reason to do so is to avoid sysfs names that only make
* sense when there are multiple adapters.
*/
adap->nr = (pdev->id != -1) ? pdev->id : 0;
adap->nr = pdev->id;
ret = i2c_bit_add_numbered_bus(adap);
if (ret)
goto err_add_bus;

2
drivers/i2c/busses/i2c-pca-platform.c
View File

@ -171,7 +171,7 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev)
i2c->io_size = resource_size(res);
i2c->irq = irq;
i2c->adap.nr = pdev->id >= 0 ? pdev->id : 0;
i2c->adap.nr = pdev->id;
i2c->adap.owner = THIS_MODULE;
snprintf(i2c->adap.name, sizeof(i2c->adap.name),
"PCA9564/PCA9665 at 0x%08lx",

9
drivers/i2c/busses/i2c-versatile.c
View File

@ -104,13 +104,8 @@ static int i2c_versatile_probe(struct platform_device *dev)
i2c->algo = i2c_versatile_algo;
i2c->algo.data = i2c;
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);
i2c->adap.nr = dev->id;
ret = i2c_bit_add_numbered_bus(&i2c->adap);
if (ret >= 0) {
platform_set_drvdata(dev, i2c);
of_i2c_register_devices(&i2c->adap);