backlight: lp855x: move backlight mode platform data

The brightness of LP855x devices is controlled by I2C register or PWM
input .  This mode was selected through the platform data, but it can be
chosen by the driver internally without platform data configuration.

How to decide the control mode:
  If the PWM period has specific value, the mode is PWM input.
  On the other hand, the mode is register-based.
  This mode selection is done on the _probe().

Move 'mode' from a header file to the driver private data structure,
'lp855 x'.  And correlated code was replaced.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 7 deletions

diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h
index d135939d392a..e0954dfea7ee 100644
--- a/include/linux/platform_data/lp855x.h
+++ b/include/linux/platform_data/lp855x.h
@@ -69,11 +69,6 @@ enum lp855x_chip_id {
         LP8557,
 };
 
-enum lp855x_brightness_ctrl_mode {
-        PWM_BASED = 1,
-        REGISTER_BASED,
-};
-
 enum lp8550_brighntess_source {
         LP8550_PWM_ONLY,
         LP8550_I2C_ONLY = 2,
@@ -116,7 +111,6 @@ struct lp855x_rom_data {
 /**
  * struct lp855x_platform_data
  * @name : Backlight driver name. If it is not defined, default name is set.
- * @mode : brightness control by pwm or lp855x register
  * @device_control : value of DEVICE CONTROL register
  * @initial_brightness : initial value of backlight brightness
  * @period_ns : platform specific pwm period value. unit is nano.
@@ -129,7 +123,6 @@ struct lp855x_rom_data {
  */
 struct lp855x_platform_data {
         const char *name;
-        enum lp855x_brightness_ctrl_mode mode;
         u8 device_control;
         int initial_brightness;
         unsigned int period_ns;