Revert driver core: move platform_data into platform_device
authorGreg Kroah-Hartman <gregkh@suse.de>
Sun, 8 Mar 2009 15:13:32 +0000 (23:13 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sat, 9 May 2009 02:22:21 +0000 (19:22 -0700)
commite67c85626cd02e306da1b4195bfaf68d61050796
treec7cccc5780599f668a36f18caa622b1c7469a08a
parentbee86321b7b2312fbb62f4cb903eba1cca45e8ad
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>
drivers/base/platform.c
include/linux/device.h
include/linux/platform_device.h