diff options
| author | Kim, Milo <Milo.Kim@ti.com> | 2013-03-20 17:37:04 -0700 |
|---|---|---|
| committer | Bryan Wu <cooloney@gmail.com> | 2013-04-01 11:04:53 -0700 |
| commit | 81f2a5b4a0570a662efd629c176fc1d67e56f7e3 (patch) | |
| tree | 673895fad2c6e0baaecfa8ac74e3f28cb47062ef /Documentation | |
| parent | 53b4192266436e75dea96c8ef495eadd6f3df981 (diff) | |
| download | linux-81f2a5b4a0570a662efd629c176fc1d67e56f7e3.tar.bz2 | |
leds: lp55xx: configure the clock detection
Now LP55xx provides automatic clock detection API, lp55xx_is_extclk_used().
The clock configuration can be done by the driver itself.
(a) Concept
The default value is set by each driver with clock selection.
The internal clock selection bit is updated in case that the external clock
is not detected or clock rate is not 32KHz.
(b) Change on LP55xx platform data
The clock configuration is done automatically, so no need to define
'update_config' in the platform side.
Correlated information are removed in the documentations and header.
(c) Definitions moved from header to driver files
CONFIG register values are moved each driver, LP5521 and LP5562.
Not necessary definitions are removed also.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/leds/leds-lp5521.txt | 19 | ||||
| -rw-r--r-- | Documentation/leds/leds-lp5562.txt | 15 |
2 files changed, 0 insertions, 34 deletions
diff --git a/Documentation/leds/leds-lp5521.txt b/Documentation/leds/leds-lp5521.txt index 270f57196339..79e4c2e6e5e8 100644 --- a/Documentation/leds/leds-lp5521.txt +++ b/Documentation/leds/leds-lp5521.txt @@ -81,22 +81,3 @@ static struct lp55xx_platform_data lp5521_platform_data = { If the current is set to 0 in the platform data, that channel is disabled and it is not visible in the sysfs. - -The 'update_config' : CONFIG register (ADDR 08h) -This value is platform-specific data. -If update_config is not defined, the CONFIG register is set with -'LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT'. -(Enable auto-powersave, set charge pump to auto, red to battery) - -example of update_config : - -#define LP5521_CONFIGS (LP5521_PWM_HF | LP5521_PWRSAVE_EN | \ - LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT | \ - LP5521_CLK_INT) - -static struct lp55xx_platform_data lp5521_pdata = { - .led_config = lp5521_led_config, - .num_channels = ARRAY_SIZE(lp5521_led_config), - .clock_mode = LP55XX_CLOCK_INT, - .update_config = LP5521_CONFIGS, -}; diff --git a/Documentation/leds/leds-lp5562.txt b/Documentation/leds/leds-lp5562.txt index 96061000dd93..5a823ff6b393 100644 --- a/Documentation/leds/leds-lp5562.txt +++ b/Documentation/leds/leds-lp5562.txt @@ -118,18 +118,3 @@ static struct lp55xx_platform_data lp5562_platform_data = { If the current is set to 0 in the platform data, that channel is disabled and it is not visible in the sysfs. - -The 'update_config' : CONFIG register (ADDR 08h) -This value is platform-specific data. -If update_config is not defined, the CONFIG register is set with -'LP5562_PWRSAVE_EN | LP5562_CLK_AUTO'. -(Enable auto-powersave, set automatic clock source selection) - -#define LP5562_CONFIGS (LP5562_PWM_HF | LP5562_PWRSAVE_EN | \ - LP5562_CLK_SRC_EXT) - -static struct lp55xx_platform_data lp5562_pdata = { - .led_config = lp5562_led_config, - .num_channels = ARRAY_SIZE(lp5562_led_config), - .update_config = LP5562_CONFIGS, -}; |