diff options
Diffstat (limited to 'include/linux/platform_data/leds-lp55xx.h')
| -rw-r--r-- | include/linux/platform_data/leds-lp55xx.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h new file mode 100644 index 000000000000..1509570d5a3f --- /dev/null +++ b/include/linux/platform_data/leds-lp55xx.h @@ -0,0 +1,87 @@ +/* + * LP55XX Platform Data Header + * + * Copyright (C) 2012 Texas Instruments + * + * Author: Milo(Woogyom) Kim <milo.kim@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * Derived from leds-lp5521.h, leds-lp5523.h + */ + +#ifndef _LEDS_LP55XX_H +#define _LEDS_LP55XX_H + +/* Clock configuration */ +#define LP55XX_CLOCK_AUTO 0 +#define LP55XX_CLOCK_INT 1 +#define LP55XX_CLOCK_EXT 2 + +/* Bits in LP5521 CONFIG register. 'update_config' in lp55xx_platform_data */ +#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 lp55xx_led_config { + const char *name; + u8 chan_nr; + u8 led_current; /* mA x10, 0 if led is not connected */ + u8 max_current; +}; + +struct lp55xx_predef_pattern { + u8 *r; + u8 *g; + u8 *b; + u8 size_r; + u8 size_g; + u8 size_b; +}; + +/* + * struct lp55xx_platform_data + * @led_config : Configurable led class device + * @num_channels : Number of LED channels + * @label : Used for naming LEDs + * @clock_mode : Input clock mode. LP55XX_CLOCK_AUTO or _INT or _EXT + * @setup_resources : Platform specific function before enabling the chip + * @release_resources : Platform specific function after disabling the chip + * @enable : EN pin control by platform side + * @patterns : Predefined pattern data for RGB channels + * @num_patterns : Number of patterns + * @update_config : Value of CONFIG register + */ +struct lp55xx_platform_data { + + /* LED channel configuration */ + struct lp55xx_led_config *led_config; + u8 num_channels; + const char *label; + + /* Clock configuration */ + u8 clock_mode; + + /* Platform specific functions */ + int (*setup_resources)(void); + void (*release_resources)(void); + void (*enable)(bool state); + + /* Predefined pattern data */ + struct lp55xx_predef_pattern *patterns; + unsigned int num_patterns; + + /* _CONFIG register */ + u8 update_config; +}; + +#endif /* _LEDS_LP55XX_H */ |