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* PM: Simplify the new suspend/hibernation framework for devicesRafael J. Wysocki2009-01-061-1/+0
| | | | | | | | | | | | | | | | | | | | | | PM: Simplify the new suspend/hibernation framework for devices Following the discussion at the Kernel Summit, simplify the new device PM framework by merging 'struct pm_ops' and 'struct pm_ext_ops' and removing pointers to 'struct pm_ext_ops' from 'struct platform_driver' and 'struct pci_driver'. After this change, the suspend/hibernation callbacks will only reside in 'struct device_driver' as well as at the bus type/ device class/device type level. Accordingly, PCI and platform device drivers are now expected to put their suspend/hibernation callbacks into the 'struct device_driver' embedded in 'struct pci_driver' or 'struct platform_driver', respectively. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@suse.cz> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* platform: add new device registration helperDmitry Baryshkov2008-10-161-0/+2
| | | | | | | | | | | | | | Add a helper that registers simple platform_device w/o resources but with parent and device data. This is usefull to cleanup platform code from code that registers such simple devices as leds-gpio, generic-bl, etc. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Implement new suspend and hibernation callbacks for platform bussesRafael J. Wysocki2008-06-101-0/+1
| | | | | | | | | | Implement new suspend and hibernation callbacks for the platform bus type. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg KH <greg@kroah.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* Driver Core: constify the name passed to platform_device_register_simpleStephen Rothwell2008-01-241-1/+1
| | | | | | | | | This name is just passed to platform_device_alloc which has its parameter declared const. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Driver core: Make platform_device.id an intJean Delvare2007-10-121-3/+4
| | | | | | | | | | | While platform_device.id is a u32, platform_device_add() handles "-1" as a special id value. This has potential for confusion and bugs. Making it an int instead should prevent problems from happening in the future. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Driver core: Make platform_device_add_data accept a const pointerScott Wood2006-12-131-1/+1
| | | | | | | | | | | | platform_device_add_data() makes a copy of the data that is given to it, and thus the parameter can be const. This removes a warning when data from get_property() on powerpc is handed to platform_device_add_data(), as get_property() returns a const pointer. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Driver core: platform_driver_probe(), can save codespaceDavid Brownell2006-12-011-0/+6
| | | | | | | | | | | | | | | | | | This defines a new platform_driver_probe() method allowing the driver's probe() method, and its support code+data, to safely live in __init sections for typical system configurations. Many system-on-chip processors could benefit from this API, to the tune of recovering hundreds to thousands of bytes per driver. That's memory which is currently wasted holding code which can never be called after system startup, yet can not be removed. It can't be removed because of the linkage requirement that pointers to init section code (like, ideally, probe support) must not live in other sections (like driver method tables) after those pointers would be invalid. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* PM: platform_bus and late_suspend/early_resumeDavid Brownell2006-09-251-0/+2
| | | | | | | | | | | 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>
* [PATCH] Driver Core: Add platform_device_del()Dmitry Torokhov2006-01-041-0/+1
| | | | | | | | | | Driver core: add platform_device_del function Having platform_device_del90 allows more straightforward error handling code in drivers registering platform devices. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [DRIVER MODEL] Add platform_driverRussell King2005-11-091-0/+15
| | | | | | | | | | | | | | | Introduce struct platform_driver. This allows the platform device driver methods to be passed a platform_device structure instead of instead of a plain device structure, and therefore requiring casting in every platform driver. We introduce this in such a way that any existing platform drivers registered directly via driver_register continue to work as before, thereby allowing a gradual conversion to the new platform_driver methods. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* [DRIVER MODEL] Improved dynamically allocated platform_device interfaceRussell King2005-11-051-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | Re-jig the simple platform device support to allow private data to be attached to a platform device, as well as allowing the parent device to be set. Example usage: pdev = platform_device_alloc("mydev", id); if (pdev) { err = platform_device_add_resources(pdev, &resources, ARRAY_SIZE(resources)); if (err == 0) err = platform_device_add_data(pdev, &platform_data, sizeof(platform_data)); if (err == 0) err = platform_device_add(pdev); } else { err = -ENOMEM; } if (err) platform_device_put(pdev); Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* [DRIVER MODEL] Add missing platform_device.h header.Russell King2005-10-291-0/+40
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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