Jingoo Han
7c9332d19e
drivers/video/backlight/kb3886_bl.c: use usleep_range() instead of msleep() for small sleeps
...
Since msleep() might not sleep for the desired amount when less than 20ms,
use usleep_range().
Signed-off-by: Jingoo Han <jg1.han@samsung.com >
Cc: Claudio Nieder <private@claudio.ch >
Cc: Richard Purdie <rpurdie@rpsys.net >
Cc: Sachin Kamat <sachin.kamat@linaro.org >
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2012-10-06 03:04:52 +09:00
Matthew Garrett
bb7ca747f8
backlight: add backlight type
...
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 >
2011-03-22 17:43:59 -07:00
Matthew Garrett
a19a6ee6ca
backlight: Allow properties to be passed at registration
...
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 >
2010-03-16 19:47:54 +00:00
Emese Revfy
9905a43b2d
backlight: Constify struct backlight_ops
...
Signed-off-by: Emese Revfy <re.emese@gmail.com >
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com >
2009-12-16 11:33:46 +00:00
Claudio Nieder
d03ebb1298
backlight: Add driver for Tabletkiosk Sahara TouchIT-213 Tablet PC
...
[akpm@linux-foundation.org: coding-style fixes]
[rpurdie@linux.intel.com: minor tweaks]
Signed-off-by: Claudio Nieder <private@claudio.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2008-10-21 00:19:49 +01:00
