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>
This commit is contained in:
parent
e0edd3c65a
commit
006f4571a1
@ -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];
|
||||
|
||||
|
@ -385,8 +385,13 @@ struct device {
|
||||
struct device_driver *driver; /* which driver has allocated this
|
||||
device */
|
||||
void *driver_data; /* data private to the driver */
|
||||
void *platform_data; /* Platform specific data, device
|
||||
core doesn't touch it */
|
||||
|
||||
void *platform_data; /* We will remove platform_data
|
||||
field if all platform devices
|
||||
pass its platform specific data
|
||||
from platform_device->platform_data,
|
||||
other kind of devices should not
|
||||
use platform_data. */
|
||||
struct dev_pm_info power;
|
||||
|
||||
#ifdef CONFIG_NUMA
|
||||
|
@ -20,6 +20,7 @@ struct platform_device {
|
||||
struct device dev;
|
||||
u32 num_resources;
|
||||
struct resource * resource;
|
||||
void *platform_data;
|
||||
|
||||
struct platform_device_id *id_entry;
|
||||
};
|
||||
|
Loading…
Reference in New Issue
Block a user