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backlight: lp855x: add FAST bit description for LP8556

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LP8556 backlight driver supports fast refresh mode when exiting the low
power mode.  This bit can be configurable in the platform side.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kim, Milo 2012-10-04 17:12:50 -07:00 committed by Linus Torvalds
parent 7c9332d19e
commit 6275ce9f7f
1 changed files with 2 additions and 0 deletions
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2
include/linux/platform_data/lp855x.h
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@ -46,6 +46,8 @@
#define LP8556_I2C_CONFIG ((ENABLE_BL << BL_CTL_SHFT) | \
(LP8556_I2C_ONLY << BRT_MODE_SHFT))
#define LP8556_COMB2_CONFIG (LP8556_COMBINED2 << BRT_MODE_SHFT)
#define LP8556_FAST_CONFIG BIT(7) /* use it if EPROMs should be maintained
when exiting the low power mode */
enum lp855x_chip_id {
LP8550,