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path: root/drivers/base/power
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2005-10-28[PATCH] USB: fix pm patches with CONFIG_PM off part 2Andrew Morton
With CONFIG_PM=n: drivers/built-in.o(.text+0x1098c): In function `hub_thread': drivers/usb/core/hub.c:2673: undefined reference to `.dpm_runtime_resume' drivers/built-in.o(.text+0x10998):drivers/usb/core/hub.c:2674: undefined reference to `.dpm_runtime_resume' Please, never ever ever put extern decls into .c files. Use the darn header files :( Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] root hub changes (lesser half)David Brownell
This patch collects various small updates related to root hubs, to shrink later patches which build on them. - For root hub suspend/resume support: * Make the existing usb_hcd_resume_root_hub() routine respect pmcore locking, exporting and using the dpm_runtime_resume() method. * Add a new usb_hcd_suspend_root_hub() to pair with that routine. (Essential to make OHCI autosuspend behave again...) * HC_SUSPENDED by itself only refers to the root hub's downstream ports. So let HCDs see root hub URBs unless the parent device is suspended. - Remove an assertion we no longer need (and now, also don't want). - Generic suspend/resume updates to work better with swsusp. * Ignore the FREEZE vs SUSPEND distinction for hardware; trying to use it breaks the swsusp snapshots it's supposed to help (sigh). * On resume, mark devices as resumed right away, but then do nothing else if the device is marked NOTATTACHED. These changes shouldn't be very noticable by themselves. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/base/power/runtime.c | 1 drivers/usb/core/hcd.c | 64 ++++++++++++++++++++++++++++++++++++++----- drivers/usb/core/hcd.h | 1 drivers/usb/core/hub.c | 45 ++++++++++++++++++++++++------ drivers/usb/core/usb.c | 20 +++++++++---- drivers/usb/core/usb.h | 1 6 files changed, 111 insertions(+), 21 deletions(-)
2005-10-28[PATCH] one less word in struct deviceDavid Brownell
This saves a word from "struct device" ... there's a refcounting mechanism stub that's rather ineffective (the values are never even tested!), which can safely be deleted. With this patch it uses normal device refcounting, so any potential users of the pm_parent mechanism will be more correct. (That mechanism is actually unusable for now though; it does nothing.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/base/power/main.c | 26 +++----------------------- include/linux/pm.h | 1 - 2 files changed, 3 insertions(+), 24 deletions(-)
2005-10-28[PATCH] driver model wakeup flagsDavid Brownell
This is a refresh of an earlier patch to add "wakeup" support to the PM core model. This provides per-device bus-neutral control of the use of wakeup events. * "struct device_pm_info" has two bits that are initialized as part of setting up the enclosing struct device: - "can_wakeup", reflecting hardware capabilities - "may_wakeup", the policy setting (when CONFIG_PM) * There's a writeable sysfs "wakeup" file, with one of two values: - "enabled", when the policy is to allow wakeup - "disabled", when the policy is not to allow it - "" if the device can't currently issue wakeups By default, wakeup is enabled on all devices that support it. If its driver doesn't support it ... treat it as a bug. :) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] swsusp: switch pm_message_t to structPavel Machek
This adds type-checking to pm_message_t, so that people can't confuse it with int or u32. It also allows us to fix "disk yoyo" during suspend (disk spinning down/up/down). [We've tried that before; since that cpufreq problems were fixed and I've tried make allyes config and fixed resulting damage.] Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Alexander Nyberg <alexn@telia.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-20[PATCH] Driver core: Don't "lose" devices on suspend on failureBenjamin Herrenschmidt
I think we need this patch or we might "lose" devices to the dpm_irq_off list if a failure occurs during the suspend process. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update ↵Yani Ioannou
device attribute callbacks Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20[PATCH] Add a semaphore to struct device to synchronize calls to its driver.mochel@digitalimplant.org
This adds a per-device semaphore that is taken before every call from the core to a driver method. This prevents e.g. simultaneous calls to the ->suspend() or ->resume() and ->probe() or ->release(), potentially saving a whole lot of headaches. It also moves us a step closer to removing the bus rwsem, since it protects the fields in struct device that are modified by the core. Signed-off-by: Patrick Mochel <mochel@digitalimplant.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-05-17[PATCH] Driver Core: remove driver model detach_stateDavid Brownell
The driver model has a "detach_state" mechanism that: - Has never been used by any in-kernel drive; - Is superfluous, since driver remove() methods can do the same thing; - Became buggy when the suspend() parameter changed semantics and type; - Could self-deadlock when called from certain suspend contexts; - Is effectively wasted documentation, object code, and headspace. This removes that "detach_state" mechanism; net code shrink, as well as a per-device saving in the driver model and sysfs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-05-17[PATCH] Driver Core: pm diagnostics update, check for errorsDavid Brownell
This patch includes various tweaks in the messaging that appears during system pm state transitions: * Warn about certain illegal calls in the device tree, like resuming child before parent or suspending parent before child. This could happen easily enough through sysfs, or in some cases when drivers use device_pm_set_parent(). * Be more consistent about dev_dbg() tracing ... do it for resume() and shutdown() too, and never if the driver doesn't have that method. * Say which type of system sleep state is being entered. Except for the warnings, these only affect debug messaging. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!