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* i2c-isa: Restore driver ownerJean Delvare2006-09-26
| | | | | | | | | | | | i2c-isa: Restore driver owner Commit 2b48716d1d2f2edb1e7cbc5ecf1cb2cb39373e33 back in January 2006 was a bit overzealous. It removed .owner from all i2c drivers, including i2c-isa ones, while they still need it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-viapro: Add support for the VT8237A and VT8251Rudolf Marek2006-09-26
| | | | | | | | | | | i2c-viapro: Add support for the VT8237A and VT8251 Documentation update included. Compile tested. Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: Warn on i2c client creation failureJean Delvare2006-09-26
| | | | | | | | | | | | | i2c: Warn on i2c client creation failure Warn when an i2c client creation fails. If we don't, the user will never know something wrong happened, as i2c client creation is typically called through an attach_adapter callback, those return value we currently ignore for technical reasons. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-core: Drop useless bitmaskingsJean Delvare2006-09-26
| | | | | | | | | | i2c-core: Drop useless bitmaskings The code generated is exactly the same. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-algo-pcf: Discard the mdelay data struct memberAdrian Bunk2006-09-26
| | | | | | | | | | | i2c-algo-pcf: Discard the mdelay data struct member Just as i2c-algo-bit, i2c-algo-pcf has an unused mdelay struct member, which we can get rid of to spare some code and memory. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-algo-bit: CleanupsJean Delvare2006-09-26
| | | | | | | | | | | | i2c-algo-bit: Cleanups * Uninline long functions (saves around 1 kB or 15%) * Refactor code in sclhi() * Drop redundant udelay on repeated start Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-isa: Fail adding driver on attach_adapter errorDavid Hubbard2006-09-26
| | | | | | | | | i2c-isa: Fail adding driver on attach_adapter error Signed-off-by: David Hubbard <david.c.hubbard@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: __must_check fixes (chip drivers)Jean Delvare2006-09-26
| | | | | | | | | | | | | | | | i2c: __must_check fixes (chip drivers) Check for error on sysfs file creation. Delete sysfs files on device removal. The approach taken for the most complex case (pcf8591) is similar to what Mark M. Hoffman proposed for hardware monitoring chip drivers. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Ben Gardner <bgardner@wabtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-dev: attach/detach_adapter cleanupsJean Delvare2006-09-26
| | | | | | | | | | | | i2c-dev: attach/detach_adapter cleanups * Only print that an adapter was attached when it succeeds. * i2c_dev == NULL on detach simply means that the attach failed before, this isn't an error per se. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-stub: Chip address as a module parameterJean Delvare2006-09-26
| | | | | | | | | | | | | | | i2c-stub: Chip address as a module parameter Add a mandatory chip_addr parameter to i2c-stub. This parameter defines to which chip address the driver will respond, instead of reponding to all addresses as before. The idea is to prevent the users from loading i2c-stub at random and being then confused by the results of sensors-detect or other user-space tools. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: New bus driver for TI OMAP boardsKomal Shah2006-09-26
| | | | | | | | | | | | | i2c: New bus driver for TI OMAP boards This patch adds I2C bus driver for various Texas Instruments (TI) OMAP1/2 (http://www.ti.com/omap) series based boards like OMAP1510/1610/1710/242x. Signed-off-by: Komal Shah <komal_shah802003@yahoo.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-algo-bit: Discard the mdelay data struct memberJean Delvare2006-09-26
| | | | | | | | | | | | | | i2c-algo-bit: Discard the mdelay data struct member The i2c_algo_bit_data structure has an mdelay member, which is not used by the algorithm code (the code has always been ifdef'd out.) Let's discard it to save some code and memory. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-matroxfb: Struct init conversionJean Delvare2006-09-26
| | | | | | | | | | | | i2c-matroxfb: Struct init conversion Convert the struct i2c_algo_bit_data initialization to proper C99 style. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Petr Vandrovec <vandrove@vc.cvut.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: Fix copy-n-paste in subsystem KconfigArthur Othieno2006-09-26
| | | | | | | | | | | | | i2c: Fix copy-n-paste in subsystem Kconfig We have: drivers/i2c/Kconfig:2:# Character device configuration Which is obviously not true.. Signed-off-by: Arthur Othieno <apgo@patchbomb.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-au1550: Add I2C support for Au1200Domen Puncer2006-09-26
| | | | | | | | | | i2c-au1550: Add I2C support for Au1200 Signed-off-by: Domen Puncer <domen.puncer@ultra.si> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-au1550: Add SMBus functionality flagDomen Puncer2006-09-26
| | | | | | | | | | | | i2c-au1550: Add SMBus functionality flag Add SMBus functionality flag, so we can use eeprom and similar drivers. Signed-off-by: Domen Puncer <domen.puncer@ultra.si> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-au1550: Fix timeout problemDomen Puncer2006-09-26
| | | | | | | | | | | | | | | | | i2c-au1550: Fix timeout problem Fix from Jordan Crouse: If the transmit and recieve FIFOS are not empty, forceably flush them rather then waiting for them to drain on their own. This solves at least a problem reported by Clem Taylor: http://www.linux-mips.org/archives/linux-mips/2006-05/msg00240.html (1% of I2C transactions would timeout) Signed-off-by: Domen Puncer <domen.puncer@ultra.si> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-sibyte: Kip Walker is goneJean Delvare2006-09-26
| | | | | | | | | | | i2c-sibyte: Kip Walker is gone Kip Walker no longer works at Broadcom, and his e-mail address there bounces back, so let's drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-algo-sibyte: Merge into i2c-sibyteJean Delvare2006-09-26
| | | | | | | | | | | | | | | i2c-algo-sibyte: Merge into i2c-sibyte Merge i2c-algo-sibyte into i2c-sibyte, as this is a complete, hardware-dependent SMBus implementation and not a reusable algorithm. Perform some basic coding style cleanups while we're here (mainly space-based indentation replaced by tabulations.) Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-algo-sibyte: CleanupsJean Delvare2006-09-26
| | | | | | | | | | | | | | i2c-algo-sibyte: Cleanups * Delete empty algo_control implementation. * Simplify i2c_sibyte_del_bus. * Delete empty module init and cleanup functions. * Drop out-of-date #ifdef MODULE construct. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: __must_check fixes, i2c-devJean Delvare2006-09-26
| | | | | | | | | | | | | | | | | | | i2c: __must_check fixes (i2c-dev) Check for error on sysfs file creation. Check for error on device creation. Delete sysfs file on device destruction. I couldn't test this one beyond compilation, as it applies on top of another patch in Greg's tree [1] which breaks all my systems when I apply it (my udev isn't recent enough.) Anyone with bleeding edge udev is welcome to test and report. [1] http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/i2c/i2c-dev-device.patch Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: __must_check fixes (core drivers)Jean Delvare2006-09-26
| | | | | | | | | | | | | | | | | | | i2c: __must_check fixes (core drivers) Check for error on sysfs file creation. Check for error on device registration. Check for error on class device registration. Greg, I am not familiar with completion, can you please tell me if I need to take care of it in the error paths (as I did in this patch, see /* Needed? */ comments), or if it isn't needed? These patches were tested, including forced errors, so they should work fine. But of course more testing can't hurt. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-dev: Drop the client templateJean Delvare2006-09-26
| | | | | | | | | | | | i2c-dev: Drop the client template Drop the i2c-dev client template. This saves about 360 bytes of memory. I got the idea from a similar cleanup Hans-Frieder Vogt made to i2c-nforce2 recently. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-dev: Use a list for data storageJean Delvare2006-09-26
| | | | | | | | | | | | | | | | i2c-dev: Use a list for data storage Use a list instead of a static array for storing the i2c-dev data. Given that most systems have less than 10 i2c busses, most of the space was wasted, so this saves around 1 kB of memory (2 kB on 64-bit archs.) The drawback is that lookup was in O(1) and is now in O(N), but given that the values of N are always small, I don't think this is a problem. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-dev: CleanupsJean Delvare2006-09-26
| | | | | | | | | | | | | | | | | | i2c-dev: Cleanups * We no more need to include platform_device.h. * Delete the to_i2c_dev macro, which is no more used (and no more valid either.) * Drop i2c_dev.minor. Now that the minor number always matches the i2c adapter number, this field is redundant with i2c_dev.adap->nr. * Delete i2c_dev_get_by_adapter() which is now redundant with i2c_dev_get_by_minor() for the same reason. * Drop the local variable dev in i2cdev_attach_adapter(), we can easily do without it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2006-09-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (47 commits) Driver core: Don't call put methods while holding a spinlock Driver core: Remove unneeded routines from driver core Driver core: Fix potential deadlock in driver core PCI: enable driver multi-threaded probe Driver Core: add ability for drivers to do a threaded probe sysfs: add proper sysfs_init() prototype drivers/base: check errors drivers/base: Platform notify needs to occur before drivers attach to the device v4l-dev2: handle __must_check add CONFIG_ENABLE_MUST_CHECK add __must_check to device management code Driver core: fixed add_bind_files() definition Driver core: fix comments in drivers/base/power/resume.c sysfs_remove_bin_file: no return value, dump_stack on error kobject: must_check fixes Driver core: add ability for devices to create and remove bin files Class: add support for class interfaces for devices Driver core: create devices/virtual/ tree Driver core: add device_rename function Driver core: add ability for classes to handle devices properly ...
| * Driver core: Remove unneeded routines from driver coreAlan Stern2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as783) simplifies the driver core slightly by removing four unnecessary _get and _put methods. It is vital that when a driver is removed from its bus's klist of registered drivers, or when a device is removed from a driver's klist of bound devices, that the klist updates complete synchronously. Otherwise the kernel might try binding an unregistered driver to a newly-registered device, or adding a device to the klist for a new driver before it has been removed from the old driver's klist. Since the removals must be synchronous, they don't need to update any reference counts. Hence the _get and _put methods can be dispensed with. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: Fix potential deadlock in driver coreAlan Stern2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a potential deadlock in the driver core. It boils down to the fact that bus_remove_device() calls klist_remove() instead of klist_del(), thereby waiting until the reference count of the klist_node in the bus's klist of devices drops to 0. The refcount can't reach 0 so long as a modprobe process is trying to bind a new driver to the device being removed, by calling __driver_attach(). The problem is that __driver_attach() tries to acquire the device's parent's semaphore, but the caller of bus_remove_device() is quite likely to own that semaphore already. It isn't sufficient just to replace klist_remove() with klist_del(). Doing so runs the risk that the device would remain on the bus's klist of devices for some time, and so could be bound to another driver even after it was unregistered. What's needed is a new way to distinguish whether or not a device is registered, based on a criterion other than whether its klist_node is linked into the bus's klist of devices. That way driver binding can fail when the device is unregistered, even if it is still linked into the klist. This patch (as782) implements the solution, by adding a new bitflag to indiate when a struct device is registered, by testing the flag before allowing a driver to bind a device, and by changing the definition of the device_is_registered() inline. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PCI: enable driver multi-threaded probeGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This provides a build and run-time option to turn on multhreaded probe for all PCI drivers. It can cause bad problems on multi-processor machines that take a while to find their root disks, and play havoc on machines that don't use persistant device names for block or network devices. But it can cause speedups on some machines, my tiny laptop's boot goes up by 0.4 seconds, and my desktop boots up several seconds faster. Use at your own risk!!! Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver Core: add ability for drivers to do a threaded probeGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the infrastructure for drivers to do a threaded probe, and waits at init time for all currently outstanding probes to complete. A new kernel thread will be created when the probe() function for the driver is called, if the multithread_probe bit is set in the driver saying it can support this kind of operation. I have tested this with USB and PCI, and it works, and shaves off a lot of time in the boot process, but there are issues with finding root boot disks, and some USB drivers assume that this can never happen, so it is currently not enabled for any bus type. Individual drivers can enable this right now if they wish, and bus authors can selectivly turn it on as well, once they determine that their subsystem will work properly with it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * drivers/base: check errorsAndrew Morton2006-09-26
| | | | | | | | | | | | | | | | | | | | | | Add lots of return-value checking. <pcornelia.huck@de.ibm.com>: fix bus_rescan_devices()] Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * drivers/base: Platform notify needs to occur before drivers attach to the deviceBrian Walsh2006-09-26
| | | | | | | | | | | | | | | | | | | | The platform_notify call for Arm and PPC architectures needs to be called before the driver attaches to the device. The problem only presents itself when hotplugging certain devices while the driver is already loaded. Signed-off-by: Brian Walsh <brian@walsh.ws> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: fixed add_bind_files() definitionYoichi Yuasa2006-09-26
| | | | | | | | | | | | | | | | | | When CONFIG_HOTPLUG is n, add_bind_files() definition is wrong. This patch has fixed it. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: fix comments in drivers/base/power/resume.cDmitry Torokhov2006-09-26
| | | | | | | | | | | | | | | | Driver core: fix comments in drivers/base/power/resume.c Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * sysfs_remove_bin_file: no return value, dump_stack on errorRandy.Dunlap2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sysfs_remove_bin_file() void. If it detects an error, printk the file name and call dump_stack(). sysfs_hash_and_remove() now returns an error code indicating its success or failure so that sysfs_remove_bin_file() can know success/failure. Convert the only driver that checked the return value of sysfs_remove_bin_file(). Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: add ability for devices to create and remove bin filesGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | Makes it easier for devices to create and remove binary attribute files so they don't have to call directly into sysfs. This is needed to help with the conversion from struct class_device to struct device. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Class: add support for class interfaces for devicesGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | When moving class_device usage over to device, we need to handle class_interfaces properly with devices. This patch adds that support. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: create devices/virtual/ treeGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | | | | | This change creates a devices/virtual/CLASS_NAME tree for struct devices that belong to a class, yet do not have a "real" struct device for a parent. It automatically creates the directories on the fly as needed. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: add device_rename functionGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | The network layer needs this to convert to using struct device instead of a struct class_device. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: add ability for classes to handle devices properlyGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds two new callbacks to the class structure: int (*dev_uevent)(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); void (*dev_release)(struct device *dev); And one pointer: struct device_attribute * dev_attrs; which all corrispond with the same thing as the "normal" class devices do, yet this is for when a struct device is bound to a class. Someday soon, struct class_device will go away, and then the other fields in this structure can be removed too. But this is necessary in order to get the transition to work properly. Tested out on a network core patch that converted it to use struct device instead of struct class_device. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: allow devices in classes to have no parentGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes an oops when a device is attached to a class, yet has no "parent" device. An example of this would be the "lo" device in the network core. We should create a "virtual" subdirectory under /sys/devices/ for these, but no one seems to agree on a proper name for it yet... Oh, and update my copyright on the driver core. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: add groups support to struct deviceGreg Kroah-Hartman2006-09-26
| | | | | | | | | | | | | | | | This is needed for the network class devices in order to be able to convert over to use struct device. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: platform_bus and late_suspend/early_resumeDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | Teach platform_bus about the new suspend_late/resume_early PM calls, issued with IRQs off. Do we really need sysdev and friends any more, or can janitors start switching its users over to platform_device so we can do a minor code-ectomy? Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: device_suspend/resume may sleepPavel Machek2006-09-26
| | | | | | | | | | | | | | | | | | This adds warning when someone tries them from atomic context. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: no suspend_prepare() phaseDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | 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 <dbrownell@users.sourceforge.net> Cc: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: add kconfig option for deprecated .../power/state filesDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | Add a new PM_SYSFS_DEPRECATED config option to control whether or not the /sys/devices/.../power/state files are provided. This will make it easier to get rid of that mechanism when the time comes, and to verify that userspace tools work right without it. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: update docs for writing .../power/stateDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Updates to match current code: - Make writes to the /sys/devices/.../power/state files fail cleanly if the device requires the irqs-off call variants. - Fix comments describing the /sys/devices/.../power/state file writes to match the code; the last several releases have invalidated the previous text. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: issue PM_EVENT_PRETHAWDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is the first of this series that should actually change any behavior ... by issuing the new event, now tha the rest of the kernel is prepared to receive it. This converts the PM core to issue the new PRETHAW message, which the rest of the kernel is now ready to receive. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: USB HCDs use PM_EVENT_PRETHAWDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | This teaches several USB host controller drivers to treat PRETHAW as a chip reset since the controller, and all devices connected to it, are no longer in states compatible with how the snapshotted suspend() left them. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * PM: video drivers and PM_EVENT_PRETHAWDavid Brownell2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | Video drivers which explicitly test for messages reporting PM_EVENT_FREEZE will now handle PM_EVENT_PRETHAW the same way. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>