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authorGreg Kroah-Hartman <gregkh@suse.de>2009-03-08 23:13:32 +0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-05-08 19:22:21 -0700
commite67c85626cd02e306da1b4195bfaf68d61050796 (patch)
treec7cccc5780599f668a36f18caa622b1c7469a08a /include
parentbee86321b7b2312fbb62f4cb903eba1cca45e8ad (diff)
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Revert driver core: move platform_data into platform_device
This reverts commit 006f4571a15fae3a0575f2a0f9e9b63b3d1012f8: 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. As we don't really want to do it, it was a bad idea. Cc: David Brownell <david-b@pacbell.net> Cc: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/device.h9
-rw-r--r--include/linux/platform_device.h1
2 files changed, 2 insertions, 8 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 6a69caaac18..5d5c197bad4 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -384,13 +384,8 @@ struct device {
struct device_driver *driver; /* which driver has allocated this
device */
void *driver_data; /* data private to the driver */
-
- 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. */
+ void *platform_data; /* Platform specific data, device
+ core doesn't touch it */
struct dev_pm_info power;
#ifdef CONFIG_NUMA
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 72736fd8223..b67bb5d7b22 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -20,7 +20,6 @@ struct platform_device {
struct device dev;
u32 num_resources;
struct resource * resource;
- void *platform_data;
struct platform_device_id *id_entry;
};