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path: root/drivers/video/backlight/locomolcd.c (follow)
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2021-02-01ARM: 9049/1: locomo: make locomo bus's remove callback return voidUwe Kleine-König1-2/+1
The driver core ignores the return value of struct bus_type::remove because there is only little that can be done. To simplify the quest to make this function return void, let struct locomo_driver::remove return void, too. All users already unconditionally return 0, this commit makes it obvious that returning an error code is a bad idea and ensures future users behave accordingly. Link: https://lore.kernel.org/r/20201126110140.2021758-1-u.kleine-koenig@pengutronix.de Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2020-07-20backlight: Use backlight_get_brightness() throughoutSam Ravnborg1-5/+1
Introduce the backlight_get_brightness() helper in all video/backlight/* drivers. This simplifies the code and align the implementation of the update_status() operation across the different backlight drivers. Some of the drivers gains a little extra functionality by the change as they now respect the fb_blank() ioctl. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257Thomas Gleixner1-1/+1
Based on 1 normalized pattern(s): gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 19 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141333.108140152@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-29backlight: locomolcd: convert locomolcd to dev_pm_opsJingoo Han1-9/+7
Instead of using legacy suspend/resume methods, using newer dev_pm_ops structure allows better control over power management. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18backlight: locomolcd: fix checkpatch error and warningJingoo Han1-13/+25
This patch fixes the checkpatch error and warning as below: WARNING: space prohibited between function name and open parenthesis '(' ERROR: trailing statements should be on next line Also, long comments are fixed for the preferred style and unnecessary lines are removed. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-02ARM: fix lcd power build failure in collie_defconfigPaul Gortmaker1-8/+1
Commit 086ada54abaa4316e8603f02410fe8ebc9ba2de1 "FB: sa1100: remove global sa1100fb_.*_power function pointers" got rid of all instances but one in locomolcd.c -- which was conditional on CONFIG_SA1100_COLLIE. The associated .power field which replaces the global is populated in mach-sa1100/collie.c so move the assignment there, but make it conditional on the locomolcd support, so use CONFIG_BACKLIGHT_LOCOMO in that file. Cc: arm@kernel.org Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-22backlight: add backlight typeMatthew Garrett1-0/+1
There may be multiple ways of controlling the backlight on a given machine. Allow drivers to expose the type of interface they are providing, making it possible for userspace to make appropriate policy decisions. Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Airlie <airlied@linux.ie> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-07-19update email addressPavel Machek1-2/+2
pavel@suse.cz no longer works, replace it with working address. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-03-16backlight: Allow properties to be passed at registrationMatthew Garrett1-2/+6
Values such as max_brightness should be set before backlights are registered, but the current API doesn't allow that. Add a parameter to backlight_device_register and update drivers to ensure that they set this correctly. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-12-16backlight: Constify struct backlight_opsEmese Revfy1-1/+1
Signed-off-by: Emese Revfy <re.emese@gmail.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2007-03-08[ARM] 4250/1: Fix locomo backlight conversion error/compile failureRichard Purdie1-2/+2
Fix locomo backlight conversion error and subsequent compile failure from commit 599a52d12629394236d785615808845823875868. Signed-off-by: RIchard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-20backlight: Separate backlight properties from backlight ops pointersRichard Purdie1-6/+6
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>
2007-02-20backlight: Remove unneeded owner fieldRichard Purdie1-1/+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>
2007-01-02backlight: fix backlight_device_register compile failuresRichard Purdie1-1/+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>
2006-12-08[PATCH] backlight: do not power off backlight when unregisteringHenrique de Moraes Holschuh1-0/+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>
2006-09-27[ARM] 3847/2: Convert LOMOMO to use struct device for GPIOsRichard Purdie1-15/+15
Convert LOMOMO to use struct device * for GPIOs instead of struct locomo_dev. This enables access to the GPIOs from code which is not a locomo device itself (such as audio). Access for gpio 31 is removed for error handling (no such hardware exists). Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-26[PATCH] backlight: LOCOMO Backlight Driver updatesRichard Purdie1-16/+107
Add backlight intensity control to the LOCOMO lcd/backlight driver using the backlight class and add basic power management support. This is a reimplementation and improvement of patches by John Lenz and Pavel Machek Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Antonino Daplas <adaplas@pol.net> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25[PATCH] fix hardcoded values in collie frontlightPavel Machek1-13/+10
In frontlight support, we should really use values from flash-ROM instead of hardcoding our own. Cleanup includes. Signed-off-by: Pavel Machek <pavel@suse.cz> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07[PATCH] Support powering sharp zaurus sl-5500 LCD up and downPavel Machek1-0/+157
This adds support for powering Zaurus's video up and down. PDA without screen is kind of useless, so it is quite important... I'll have to figure out how to really control the frontlight, because LCD without that is quite hard to read. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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