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| author | Ming Lei <tom.leiming@gmail.com> | 2009-03-08 15:13:32 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 23:38:26 (GMT) |
| commit | 006f4571a15fae3a0575f2a0f9e9b63b3d1012f8 (patch) | |
| tree | 22c2e30f830b0440032c1347b13bf96734a76022 /drivers/base | |
| parent | e0edd3c65aa5b53e20280565a7ce11675eb7ed6b (diff) | |
| download | linux-006f4571a15fae3a0575f2a0f9e9b63b3d1012f8.tar.xz | |
driver core: move platform_data into platform_device
This patch moves platform_data from struct device into
struct platform_device, based on the two ideas:
1. Now all platform_driver is registered by platform_driver_register,
which makes probe()/release()/... of platform_driver passed parameter
of platform_device *, so platform driver can get platform_data from
platform_device;
2. Other kind of devices do not need to use platform_data, we can
decrease size of device if moving it to platform_device.
Taking into consideration of thousands of files to be fixed and they
can't be finished in one night(maybe it will take a long time), so we
keep platform_data in device to allow two kind of cases coexist until
all platform devices pass its platfrom data from
platform_device->platform_data.
All patches to do this kind of conversion are welcome.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/platform.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index ec993aa..c5ac81d 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -217,6 +217,7 @@ int platform_device_add_data(struct platform_device *pdev, const void *data, if (d) { memcpy(d, data, size); pdev->dev.platform_data = d; + pdev->platform_data = d; } return d ? 0 : -ENOMEM; } @@ -246,6 +247,8 @@ int platform_device_add(struct platform_device *pdev) else dev_set_name(&pdev->dev, pdev->name); + pdev->platform_data = pdev->dev.platform_data; + for (i = 0; i < pdev->num_resources; i++) { struct resource *p, *r = &pdev->resource[i]; |