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Diffstat (limited to 'include/linux/platform_data/leds-lp55xx.h')
-rw-r--r--include/linux/platform_data/leds-lp55xx.h87
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
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index 000000000000..1509570d5a3f
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+++ b/include/linux/platform_data/leds-lp55xx.h
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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 */
+
+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 */