diff options
| author | Kim, Milo <Milo.Kim@ti.com> | 2013-02-27 17:02:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-27 19:10:09 -0800 |
| commit | c5a51053cf3b499ddba60a89ab067ea05ad15840 (patch) | |
| tree | 0f76cd10dc1ee7f57782434f1aff21a4a4e39bc0 /drivers/video/backlight/Kconfig | |
| parent | 9ed8a30f3471347c1b763bd062fa78ae80f18eae (diff) | |
backlight: add new lp8788 backlight driver
TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight
dri= ver and current sinks. This patch enables LP8788 backlight module.
(Brightness mode)
The brightness is controlled by PWM input or I2C register.
All modes are supported in the driver.
(Platform data)
Configurable data can be defined in the platform side.
name : backlight driver name. (default: "lcd-backlight")
initial_brightness : initial value of backlight brightness
bl_mode : brightness control by PWM or lp8788 register
dim_mode : dimming mode selection
full_scale : full scale current setting
rise_time : brightness ramp up step time
fall_time : brightness ramp down step time
pwm_pol : PWM polarity setting when bl_mode is PWM based
period_ns : platform specific PWM period value. unit is nano.
The default values are set in case no platform data is defined.
[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Cc: "devendra.aaru" <devendra.aaru@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/backlight/Kconfig')
| -rw-r--r-- | drivers/video/backlight/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index be27b551473f..db10d0120d2b 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -384,6 +384,12 @@ config BACKLIGHT_LP855X This supports TI LP8550, LP8551, LP8552, LP8553, LP8556 and LP8557 backlight driver. +config BACKLIGHT_LP8788 + tristate "Backlight driver for TI LP8788 MFD" + depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788 + help + This supports TI LP8788 backlight driver. + config BACKLIGHT_OT200 tristate "Backlight driver for ot200 visualisation device" depends on BACKLIGHT_CLASS_DEVICE && CS5535_MFGPT && GPIO_CS5535 |