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| author | Ming Lei <tom.leiming@gmail.com> | 2009-03-13 23:06:59 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 16:38:26 -0700 |
| commit | ce21c7bcd796fc4f45d48781b7e85f493cc55ee5 (patch) | |
| tree | 7b2152db4af5f8ca42180166ef336596d52f8dc0 /drivers | |
| parent | 006f4571a15fae3a0575f2a0f9e9b63b3d1012f8 (diff) | |
| download | linux-ce21c7bcd796fc4f45d48781b7e85f493cc55ee5.tar.gz linux-ce21c7bcd796fc4f45d48781b7e85f493cc55ee5.tar.bz2 linux-ce21c7bcd796fc4f45d48781b7e85f493cc55ee5.zip | |
driver core: fix passing platform_data
We will remove platform_data field from struct device until
all platform devices pass its specific data from platfom_device
and all platform drivers use platform specific data passed by
platform_device->platform_data. This kind of conversion will
need a long time, for thousands of files is affected.
To make the conversion easily, we allow platform specific data
passed by struct device or struct platform_device and platform
driver may use it from struct device or struct platform_device.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/platform.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index c5ac81d22303..d2198f64ad4e 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -247,7 +247,20 @@ int platform_device_add(struct platform_device *pdev) else dev_set_name(&pdev->dev, pdev->name); - pdev->platform_data = pdev->dev.platform_data; + /* We will remove platform_data field from struct device + * if all platform devices pass its platform specific data + * from platform_device. The conversion is going to be a + * long time, so we allow the two cases coexist to make + * this kind of fix more easily*/ + if (pdev->platform_data && pdev->dev.platform_data) { + printk(KERN_ERR + "%s: use which platform_data?\n", + dev_name(&pdev->dev)); + } else if (pdev->platform_data) { + pdev->dev.platform_data = pdev->platform_data; + } else if (pdev->dev.platform_data) { + pdev->platform_data = pdev->dev.platform_data; + } for (i = 0; i < pdev->num_resources; i++) { struct resource *p, *r = &pdev->resource[i]; |