- 08 1月, 2009 3 次提交
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由 Richard Purdie 提交于
Add suspend/resume support to the backlight core and enable use of it by appropriate drivers. Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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由 Zhang Rui 提交于
Always invoke backlight_update_status when users want to change the backlight. For setups where brightness change is an expensive operation, this could be done in the driver rather than the core. http://bugzilla.kernel.org/show_bug.cgi?id=12249Signed-off-by: NZhang Rui <rui.zhang@intel.com> Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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由 Pavel Machek 提交于
Check input properly in backlight, echo > brightness should not turn off the backlight. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix printk warning] Signed-off-by: NPavel Machek <pavel@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>
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- 07 1月, 2009 1 次提交
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由 Kay Sievers 提交于
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 23 7月, 2008 1 次提交
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由 Sebastian Siewior 提交于
Signed-off-by: NSebastian Siewior <bigeasy@linutronix.de> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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- 07 2月, 2008 1 次提交
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由 Helge Deller 提交于
Avoid driver callbacks when the brightness hasn't changed since they're not necessary. Signed-off-by: NHelge Deller <deller@gmx.de> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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- 12 10月, 2007 1 次提交
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由 Adrian Bunk 提交于
This patch makes two needlessly global structs static. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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- 16 7月, 2007 1 次提交
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由 Richard Purdie 提交于
Convert the backlight and LCD classes from struct class_device to struct device since class_device is scheduled for removal. One nasty API break is the backlight power attribute has had to be renamed to bl_power and the LCD power attribute has had to be renamed to lcd_power since the original names clash with the core. I can't see a way around this. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 12 7月, 2007 1 次提交
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由 Tejun Heo 提交于
sysfs is now completely out of driver/module lifetime game. After deletion, a sysfs node doesn't access anything outside sysfs proper, so there's no reason to hold onto the attribute owners. Note that often the wrong modules were accounted for as owners leading to accessing removed modules. This patch kills now unnecessary attribute->owner. Note that with this change, userland holding a sysfs node does not prevent the backing module from being unloaded. For more info regarding lifetime rule cleanup, please read the following message. http://article.gmane.org/gmane.linux.kernel/510293 (tweaked by Greg to not delete the field just yet, to make it easier to merge things properly.) Signed-off-by: NTejun Heo <htejun@gmail.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 20 2月, 2007 7 次提交
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由 Richard Purdie 提交于
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: NRichard Purdie <rpurdie@rpsys.net>
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由 Richard Purdie 提交于
Move the setting/unsetting of pmac_backlight into the backlight core instead of doing it in each driver. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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由 Richard Purdie 提交于
The backlight class wants notification whenever the console is blanked but doesn't get this when hardware blanking fails and software blanking is used. Changing FB_EVENT_BLANK to report both would be a behaviour change which could confuse the console layer so add a new event for software blanking and have the backlight class listen for both. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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由 Richard Purdie 提交于
Convert internal semaphore to a mutex Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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由 Richard Purdie 提交于
backlight_device->sem has a very specific use as documented in the header file. The external users of this are using it for a different reason, to serialise access to the update_status() method. backlight users were supposed to implement their own internal serialisation of update_status() if needed but everyone is doing things differently and incorrectly. Therefore add a global mutex to take care of serialisation for everyone, once and for all. Locking for get_brightness remains optional since most users don't need it. Also update the lcd class in a similar way. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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由 Dmitry Torokhov 提交于
Remove excessive numbers of (un)likely()s in the backlight core. There are no hot paths in this code so rely on compiler to do the right thing. Signed-off-by: NDmitry Torokhov <dtor@mail.ru> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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由 Dmitry Torokhov 提交于
Fix error handling when registering new device Signed-off-by: NDmitry Torokhov <dtor@mail.ru> Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
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- 20 12月, 2006 1 次提交
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由 Yu Luming 提交于
This patch set adds generic abstract layer support for acpi video driver to have generic user interface to control backlight and output switch control by leveraging the existing backlight sysfs class driver, and by adding a new video output sysfs class driver. This patch: Add dev argument for backlight_device_register to link the class device to real device object. The platform specific driver should find a way to get the real device object for their video device. [akpm@osdl.org: build fix] [akpm@osdl.org: fix msi-laptop.c] Signed-off-by: NLuming Yu <Luming.yu@intel.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 09 12月, 2006 3 次提交
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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: NHenrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: NRichard Purdie <rpurdie@rpsys.net> Acked-by: NPavel Machek <pavel@ucw.cz> Acked-by: NJames Simmons <jsimmons@infradead.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 James Simmons 提交于
The backlight layer should be independent from the framebuffer layer. It can use the services offered by the framebuffer, but its absence should not prevent the backlight/lcd layer from functioning. [akpm@osdl.org: cleanups] Signed-off-by: NJames Simmons <jsimmons@infradead.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Helge Deller 提交于
- move some structs and arrays to the read-only (.rodata) section [akpm@osdl.org: build fix] Signed-off-by: NHelge Deller <deller@gmx.de> Acked-by: NJames Simmons <jsimmons@infradead.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 16 5月, 2006 1 次提交
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由 Richard Purdie 提交于
The backlight and LCD class _store functions currently accept values like "34 some random strings" without error. This corrects them to return -EINVAL if the value is not numeric with an optional byte of trailing whitespace. Signed-off-by: NRichard Purdie <rpurdie@rpsys.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 01 4月, 2006 1 次提交
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由 Richard Purdie 提交于
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: NRichard Purdie <rpurdie@rpsys.net> Signed-off-by: NAntonino Daplas <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 10 3月, 2006 1 次提交
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由 Jean Delvare 提交于
ERR_PTR() is supposed to be passed a negative value. Signed-off-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 08 2月, 2006 1 次提交
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由 Al Viro 提交于
A bunch of asm/bug.h includes are both not needed (since it will get pulled anyway) and bogus (since they are done too early). Removed. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 09 11月, 2005 1 次提交
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由 Olaf Hering 提交于
This patch removes almost all inclusions of linux/version.h. The 3 #defines are unused in most of the touched files. A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is unfortunatly in linux/version.h. There are also lots of #ifdef for long obsolete kernels, this was not touched. In a few places, the linux/version.h include was move to where the LINUX_VERSION_CODE was used. quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'` search pattern: /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h Signed-off-by: NOlaf Hering <olh@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
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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