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| author | Kim, Milo <Milo.Kim@ti.com> | 2013-04-29 16:18:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 18:28:18 -0700 |
| commit | 0b8185733966c1863b6b90ca2697327118ce5032 (patch) | |
| tree | 746742b89c6eb0b9f20058139afc2ec93c3bd122 /Documentation/backlight | |
| parent | 600ffd33d09e3803d81607d3404a8cad709160e4 (diff) | |
| download | lwn-0b8185733966c1863b6b90ca2697327118ce5032.tar.gz lwn-0b8185733966c1863b6b90ca2697327118ce5032.zip | |
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/backlight')
| -rw-r--r-- | Documentation/backlight/lp855x-driver.txt | 3 |
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, |