[PATCH] backlight: lp855x: add FAST bit description for LP8556

[Kim, Milo]

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@xxxxxx>
---
 include/linux/platform_data/lp855x.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h
index cc76f1f..761f317 100644
--- a/include/linux/platform_data/lp855x.h
+++ b/include/linux/platform_data/lp855x.h
@@ -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,
-- 
1.7.2.5


Best Regards,
Milo


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