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/*
* 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 */
/* Bits in LP5562 CONFIG register */
#define LP5562_PWM_HF LP5521_PWM_HF
#define LP5562_PWRSAVE_EN LP5521_PWRSAVE_EN
#define LP5562_CLK_SRC_EXT LP5521_CLK_SRC_EXT
#define LP5562_CLK_INT LP5521_CLK_INT
#define LP5562_CLK_AUTO LP5521_CLK_AUTO
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 {
const u8 *r;
const u8 *g;
const 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 */
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