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 --- include/linux/leds-lp5521.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/linux/leds-lp5521.h b/include/linux/leds-lp5521.h index e675b8d4c7bf..e9ab583cac36 100644 --- a/include/linux/leds-lp5521.h +++ b/include/linux/leds-lp5521.h @@ -36,6 +36,18 @@ struct lp5521_led_config { #define LP5521_CLOCK_INT 1 #define LP5521_CLOCK_EXT 2 +/* Bits in CONFIG register */ +#define LP5521_PWM_HF 0x40 /* PWM: 0 = 256Hz, 1 = 558Hz */ +#define LP5521_PWRSAVE_EN 0x20 /* 1 = Power save mode */ +#define LP5521_CP_MODE_OFF 0 /* Charge pump (CP) off */ +#define LP5521_CP_MODE_BYPASS 8 /* CP forced to bypass mode */ +#define LP5521_CP_MODE_1X5 0x10 /* CP forced to 1.5x mode */ +#define LP5521_CP_MODE_AUTO 0x18 /* Automatic mode selection */ +#define LP5521_R_TO_BATT 4 /* R out: 0 = CP, 1 = Vbat */ +#define LP5521_CLK_SRC_EXT 0 /* Ext-clk source (CLK_32K) */ +#define LP5521_CLK_INT 1 /* Internal clock */ +#define LP5521_CLK_AUTO 2 /* Automatic clock selection */ + struct lp5521_platform_data { struct lp5521_led_config *led_config; u8 num_channels; @@ -44,6 +56,7 @@ struct lp5521_platform_data { void (*release_resources)(void); void (*enable)(bool state); const char *label; + u8 update_config; }; #endif /* __LINUX_LP5521_H */ -- cgit v1.2.3