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authorKim, Milo <Milo.Kim@ti.com>2013-04-30 03:18:03 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 05:28:18 +0400
commit0b8185733966c1863b6b90ca2697327118ce5032 (patch)
tree746742b89c6eb0b9f20058139afc2ec93c3bd122 /Documentation
parent600ffd33d09e3803d81607d3404a8cad709160e4 (diff)
downloadlinux-0b8185733966c1863b6b90ca2697327118ce5032.tar.xz
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/backlight/lp855x-driver.txt3
1 files changed, 0 insertions, 3 deletions
diff --git a/Documentation/backlight/lp855x-driver.txt b/Documentation/backlight/lp855x-driver.txt
index 18b06ca038ea..72e2a673f774 100644
--- a/Documentation/backlight/lp855x-driver.txt
+++ b/Documentation/backlight/lp855x-driver.txt
@@ -32,7 +32,6 @@ Platform data for lp855x
For supporting platform specific data, the lp855x platform data can be used.
* name : Backlight driver name. If it is not defined, default name is set.
-* mode : Brightness control mode. PWM or register based.
* device_control : Value of DEVICE CONTROL register.
* initial_brightness : Initial value of backlight brightness.
* period_ns : Platform specific PWM period value. unit is nano.
@@ -54,7 +53,6 @@ static struct lp855x_rom_data lp8552_eeprom_arr[] = {
static struct lp855x_platform_data lp8552_pdata = {
.name = "lcd-bl",
- .mode = REGISTER_BASED,
.device_control = I2C_CONFIG(LP8552),
.initial_brightness = INITIAL_BRT,
.load_new_rom_data = 1,
@@ -65,7 +63,6 @@ static struct lp855x_platform_data lp8552_pdata = {
example 2) lp8556 platform data : pwm input mode with default rom data
static struct lp855x_platform_data lp8556_pdata = {
- .mode = PWM_BASED,
.device_control = PWM_CONFIG(LP8556),
.initial_brightness = INITIAL_BRT,
.period_ns = 1000000,