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path: root/drivers/video/backlight/ep93xx_bl.c
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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* backlight: Remove .owner field for drivers using module_platform_driverPeter Griffin2014-08-281-1/+0
| | | | | | | | | This patch removes the superflous .owner field for drivers which use the module_platform_driver or platform_driver_register api, as this is overriden in __platform_driver_register. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* backlight: ep93xx: use devm_backlight_device_register()Jingoo Han2013-11-131-11/+2
| | | | | | | | | Use devm_backlight_device_register() to make cleanup paths simpler, and remove unnecessary remove(). 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>
* backlight: ep93xx: remove unnecessary platform_set_drvdata()Jingoo Han2013-07-031-1/+0
| | | | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d063100 ("device-core: Ensure drvdata = NULL when no driver is bound"). Thus, it is not needed to manually clear the device driver data to NULL. 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>
* backlight: ep93xx: convert ep93xx to dev_pm_opsJingoo Han2013-04-291-10/+8
| | | | | | | | | 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>
* drivers/video/backlight/ep93xx_bl.c: remove incorrect __init annotationJingoo Han2013-04-291-1/+1
| | | | | | | | | | | When platform_driver_probe() is not used, bind/unbind via sysfs is enabled. Thus, __init/__exit annotations should be removed from probe()/remove(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Ryan Mallon <rmallon@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* backlight: remove use of __devexit_pBill Pemberton2012-11-281-1/+1
| | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ep93xx: Use ioremap for backlight driverRyan Mallon2012-03-141-11/+14
| | | | | | | | | | | | | | | | | | | | | | | | The ep93xx backlight driver uses a single register within the framebuffer's register space. Currently the backlight driver uses a static IO mapping for the register since the memory cannot be requested by both drivers. Convert the static mapping to use ioremap so that we can remove the dependency on mach/hardware.h. To do so, we need remove the request_mem_region from both the backlight and framebuffer drivers, since whichever driver is loaded second will fail with -EBUSY otherwise. A proper fix is still required, and a FIXME comment has been added to both drivers. Signed-off-by: Ryan Mallon <rmallon@gmail.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: Mika Westerberg <mika.westerberg@iki.fi> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
* drivers/video/backlight/ep93xx_bl.c: remove duplicated header includeJingoo Han2012-01-101-1/+0
| | | | | | | | | | | module.h is included twice. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.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>
* backlight: convert drivers/video/backlight/* to use module_platform_driver()Axel Lin2012-01-101-11/+1
| | | | | | | | | | | | | | | | Convert the drivers in drivers/video/backlight/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> [ep93xx_bl.c] Cc: Mike Rapoport <mike@compulab.co.il> Cc: Richard Purdie <rpurdie@rpsys.net> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* video: Add module.h to drivers/video files who really use it.Paul Gortmaker2011-10-311-0/+1
| | | | | | | | | | They were getting this implicitly by an include of module.h from device.h -- but we are going to clean that up and break that include chain, so include module.h explicitly now. [ with contributions from Axel Lin <axel.lin@gmail.com> ] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* drivers/video/backlight/ep93xx_bl.c: add missing include of linux/module.hAxel Lin2011-08-251-1/+1
| | | | | | | | | | | | | | | | | | ep93xx_bl.c uses interfaces from linux/module.h, so it should include that file. This patch fixes build errors: CC [M] drivers/video/backlight/ep93xx_bl.o drivers/video/backlight/ep93xx_bl.c:138: error: 'THIS_MODULE' undeclared here (not in a function) drivers/video/backlight/ep93xx_bl.c:158: error: expected declaration specifiers or '...' before string constant drivers/video/backlight/ep93xx_bl.c:158: warning: data definition has no type or storage class ... Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ryan Mallon <rmallon@gmail.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>
* backlight: add backlight typeMatthew Garrett2011-03-221-0/+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>
* backlight: Add Cirrus EP93xx backlight driverH Hartley Sweeten2010-05-261-0/+160
The EP9307, EP9312, and EP9315 processors include a framebuffer peripheral. This peripheral has a dedicated pwm output called BRIGHT that can be used to control the backlight on an LCD. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>