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path: root/drivers/video/backlight/corgi_bl.c
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* backlight: Rename the corgi backlight driver to genericRichard Purdie2009-01-081-148/+0
| | | | | | | The corgi backlight driver is really generic code. This rename makes this a lot clearer and completes the partial rename made a while ago. Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
* backlight: Add suspend/resume support to the backlight coreRichard Purdie2009-01-081-33/+12
| | | | | | | Add suspend/resume support to the backlight core and enable use of it by appropriate drivers. Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
* backlight: Convert corgi backlight driver into a more generic driverRichard Purdie2007-10-111-12/+10
| | | | | | | | Convert the corgi backlight driver to a more generic version so it can be reused by other code rather than being Zaurus/PXA specific. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* backlight: simplify corgi_bl lockingRichard Purdie2007-02-201-8/+5
| | | | | | Now update_status has locking, we can remove the mutex from corgi_bl. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* backlight: Separate backlight properties from backlight ops pointersRichard Purdie2007-02-201-8/+8
| | | | | | | | | Per device data such as brightness belongs to the indivdual device and should therefore be separate from the the backlight operation function pointers. This patch splits the two types of data and allows simplifcation of some code. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* backlight: Minor code cleanups for corgi_bl.cRichard Purdie2007-02-201-14/+16
| | | | | | | Since people use this code as an example, clean it up to to use platform_*_drvdata and remove an unneeded function. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* backlight: Remove unneeded owner fieldRichard Purdie2007-02-201-1/+0
| | | | | | | | | | | | Remove uneeded owner field from backlight_properties structure. Nothing uses it and it is unlikely that it will ever be used. The backlight class uses other means to ensure that nothing references unloaded code. Based on a patch from Dmitry Torokhov <dtor@insightbb.com> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* backlight: fix backlight_device_register compile failuresRichard Purdie2007-01-021-1/+1
| | | | | | | | | Fix breakage from commit 519ab5f2be65b72cf12ae99c89752bbe79b44df6 which didn't update all references to backlight_device_register causing compile failures. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Len Brown <len.brown@intel.com>
* [PATCH] backlight: do not power off backlight when unregisteringHenrique de Moraes Holschuh2006-12-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ACPI drivers like ibm-acpi are moving to the backlight sysfs infrastructure. During ibm-acpi testing, I have noticed that backlight_device_unregister() sets the display brightness and power to zero. This causes the display to be dimmed on ibm-acpi module removal. It will affect all other ACPI drivers that are being converted to use the backlight class, as well. It also affects a number of framebuffer devices that are used on desktops and laptops which might also not want such behaviour. Since working around this behaviour requires undesireable hacks, Richard Purdie decided that we would be better off reverting the changes in the sysfs class, and adding the code to dim and power off the backlight device to the drivers that want it. This patch is my attempt to do so. Patch against latest linux-2.6.git. Changes untested, as I lack the required hardware. Still, they are trivial enough that, apart from typos, there is little chance of getting them wrong. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3898/1: corgi_bl fix module loadingAnton Vorontsov2006-10-241-1/+1
| | | | | | | | | | | | | | Fix module loading: corgi_bl: module license 'GPLv2' taints kernel. corgi_bl: Unknown symbol platform_driver_unregister corgi_bl: Unknown symbol __symbol_get corgi_bl: Unknown symbol platform_driver_register Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: pHilipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Anton Vorontsov <cbou@mail.ru> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3897/1: corgi_bl fix module compilingAnton Vorontsov2006-10-241-1/+1
| | | | | | | | | | | | Fix module compiling: WARNING: drivers/video/backlight/corgi_bl.o - Section mismatch: reference to .init.text: from .data between '$d' (at offset 0x0) and 'bl_mutex' Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Anton Vorontsov <cbou@mail.ru> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] backlight: corgi_bl: Generalise to support other Sharp SL hardwareRichard Purdie2006-03-311-18/+13
| | | | | | | | | | | | | | Generalise the Corgi backlight driver by moving the default intensity and limit mask settings into the platform specific data structure. This enables the driver to support other Zaurus hardware, specifically the SL-6000x (Tosa) model. Also change the spinlock to a mutex (the spinlock is overkill). Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] backlight: Backlight Class ImprovementsRichard Purdie2006-03-311-63/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Backlight class attributes are currently easy to implement incorrectly. Moving certain handling into the backlight core prevents this whilst at the same time makes the drivers simpler and consistent. The following changes are included: The brightness attribute only sets and reads the brightness variable in the backlight_properties structure. The power attribute only sets and reads the power variable in the backlight_properties structure. Any framebuffer blanking events change a variable fb_blank in the backlight_properties structure. The backlight driver has only two functions to implement. One function is called when any of the above properties change (to update the backlight brightness), the second is called to return the current backlight brightness value. A new attribute "actual_brightness" is added to return this brightness as determined by the driver having combined all the above factors (and any driver/device specific factors). Additionally, the backlight core takes care of checking the maximum brightness is not exceeded and of turning off the backlight before device removal. The corgi backlight driver is updated to reflect these changes. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3228/1: SharpSL: Move PM code to arch/arm/commonRichard Purdie2006-01-051-0/+1
| | | | | | | | | | | | Patch from Richard Purdie This patch moves a large chunk of the sharpsl_pm driver to arch/arm/common so that it can be reused on other devices such as the SL-5500 (collie). It also abstracts some functions from the core into the machine and platform specific parts of the driver to aid reuse. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge master.kernel.org:/home/rmk/linux-2.6-drvmodelLinus Torvalds2005-11-111-10/+11
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| * [DRIVER MODEL] Convert platform drivers to use struct platform_driverRussell King2005-11-091-10/+11
| | | | | | | | | | | | | | | | | | This allows us to eliminate the casts in the drivers, and eventually remove the use of the device_driver function pointer methods for platform device drivers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [ARM] 3096/1: Add SharpSL Zaurus power and battery management core driverRichard Purdie2005-11-101-0/+6
|/ | | | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie This patch adds a power and battery management core driver which with the addition of the right device files, supports the c7x0 and cxx00 series of Sharp Zaurus handhelds. The driver is complex for several reasons. Battery charging is manually monitored and controlled. When suspended, the device needs to periodically partially resume, check the charging status and then re-suspend. It does without bothering the higher linux layers as a full resume and re-suspend is unnecessary. The code is carefully written to avoid interrupts or calling code outside the module under these circumstances. It also vets the various wake up sources and monitors the device's power situation. Hooks to limit the backlight intensity and to notify the battery monitoring code of backlight events are connected/added as the backlight is one of the biggest users of power on the device. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Create platform_device.h to contain all the platform device details.Russell King2005-10-291-1/+1
| | | | | | | | Convert everyone who uses platform_bus_type to include linux/platform_device.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacksRussell King2005-10-281-6/+4
| | | | | | | | | | | | | | | | In PM v1, all devices were called at SUSPEND_DISABLE level. Then all devices were called at SUSPEND_SAVE_STATE level, and finally SUSPEND_POWER_DOWN level. However, with PM v2, to maintain compatibility for platform devices, I arranged for the PM v2 suspend/resume callbacks to call the old PM v1 suspend/resume callbacks three times with each level in order so that existing drivers continued to work. Since this is obsolete infrastructure which is no longer necessary, we can remove it. Here's an (untested) patch to do exactly that. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [ARM] Don't include mach-types.h unnecessarilyRussell King2005-09-291-1/+0
| | | | | | | | | It's pointless to include mach-types.h if you're not going to use anything from it. These references were removed as a result of: grep -lr 'asm/mach-types\.h' . | xargs grep -L 'machine_is_\|MACH_TYPE_\|MACHINE_START\|machine_type' Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] SharpSL: Add missing hunk from backlight updateRichard Purdie2005-09-171-4/+5
| | | | | | | | | This hunk from the sharpsl/corgi backlight update appears to have got lost somewhere along the way. Its needed to match the other changes. Signed-Off-By: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SharpSL: Abstract model specifics from Corgi Backlight driverRichard Purdie2005-09-131-14/+11
| | | | | | | | | | | | | | Separate out the Sharp Zaurus c7x0 series specific code from the Corgi backlight driver. Abstract model/machine specific functions to corgi_lcd.c via sharpsl.h This enables the driver to be used by the Zaurus cxx00 series. Signed-Off-by: Richard Purdie <rpurdie@rpsys.net> Cc: Vojtech Pavlik <vojtech@suse.cz> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix u32 vs. pm_message_t in driver/videoPavel Machek2005-04-161-1/+1
| | | | | | | | | This fixes u32 vs. pm_message_t confusion in drivers/video. Should change no code. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2Linus Torvalds2005-04-161-0/+198
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!
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