From 3b49aacd0e56d5bf1b511f6554f17cd65eb8da64 Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Fri, 23 Mar 2012 15:02:08 -0700 Subject: drivers/leds/leds-lp5521.c: add 'update_config' in the lp5521_platform_data The value of CONFIG register(Addr 08h) is configurable. For supporting this feature, update_config is added in the platform data. If 'update_config' is not defined, the default value is 'LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT'. To define CONFIG register in the platform data, the bit definitions were mo= ved to the header file. Documentation updated : description about 'update_config' and example. Signed-off-by: Milo(Woogyom) Kim Acked-by: Linus Walleij Cc: Arun MURTHY Cc: Srinidhi Kasagar Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/leds/leds-lp5521.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'Documentation/leds') diff --git a/Documentation/leds/leds-lp5521.txt b/Documentation/leds/leds-lp5521.txt index f48ab757d12..e3c66c64591 100644 --- a/Documentation/leds/leds-lp5521.txt +++ b/Documentation/leds/leds-lp5521.txt @@ -92,3 +92,22 @@ static struct lp5521_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 lp5521_platform_data lp5521_pdata = { + .led_config = lp5521_led_config, + .num_channels = ARRAY_SIZE(lp5521_led_config), + .clock_mode = LP5521_CLOCK_INT, + .update_config = LP5521_CONFIGS, +}; -- cgit v1.2.3