From 1d3a82af45428c5e8deaa119cdeb79611ae46371 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 30 Aug 2006 14:09:47 -0700 Subject: PM: no suspend_prepare() phase Remove the new suspend_prepare() phase. It doesn't seem very usable, has never been tested, doesn't address fault cleanup, and would need a sibling resume_complete(); plus there are no real use cases. It could be restored later if those issues get resolved. Signed-off-by: David Brownell Cc: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/base/power/suspend.c | 27 --------------------------- 1 file changed, 27 deletions(-) (limited to 'drivers/base/power') diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index e86db83746ac..6453c25103d2 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -117,33 +117,6 @@ static int suspend_device_late(struct device *dev, pm_message_t state) return error; } -/** - * device_prepare_suspend - save state and prepare to suspend - * - * NOTE! Devices cannot detach at this point - not only do we - * hold the device list semaphores over the whole prepare, but - * the whole point is to do non-invasive preparatory work, not - * the actual suspend. - */ -int device_prepare_suspend(pm_message_t state) -{ - int error = 0; - struct device * dev; - - down(&dpm_sem); - down(&dpm_list_sem); - list_for_each_entry_reverse(dev, &dpm_active, power.entry) { - if (!dev->bus || !dev->bus->suspend_prepare) - continue; - error = dev->bus->suspend_prepare(dev, state); - if (error) - break; - } - up(&dpm_list_sem); - up(&dpm_sem); - return error; -} - /** * device_suspend - Save state and stop all devices in system. * @state: Power state to put each device in. -- cgit v1.2.3