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authorKim, Milo <Milo.Kim@ti.com>2013-02-27 17:02:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 19:10:09 -0800
commitc5a51053cf3b499ddba60a89ab067ea05ad15840 (patch)
tree0f76cd10dc1ee7f57782434f1aff21a4a4e39bc0 /drivers/video/backlight/Kconfig
parent9ed8a30f3471347c1b763bd062fa78ae80f18eae (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/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index be27b551473..db10d0120d2 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