[mirror_ubuntu-bionic-kernel.git] / include / linux / mfd / aat2870.h

/*
 * linux/include/linux/mfd/aat2870.h
 *
 * Copyright (c) 2011, NVIDIA Corporation.
 * Author: Jin Park <jinyoungp@nvidia.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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

#ifndef __LINUX_MFD_AAT2870_H
#define __LINUX_MFD_AAT2870_H

#include <linux/debugfs.h>
#include <linux/i2c.h>

/* Register offsets */
#define AAT2870_BL_CH_EN	0x00
#define AAT2870_BLM		0x01
#define AAT2870_BLS		0x02
#define AAT2870_BL1		0x03
#define AAT2870_BL2		0x04
#define AAT2870_BL3		0x05
#define AAT2870_BL4		0x06
#define AAT2870_BL5		0x07
#define AAT2870_BL6		0x08
#define AAT2870_BL7		0x09
#define AAT2870_BL8		0x0A
#define AAT2870_FLR		0x0B
#define AAT2870_FM		0x0C
#define AAT2870_FS		0x0D
#define AAT2870_ALS_CFG0	0x0E
#define AAT2870_ALS_CFG1	0x0F
#define AAT2870_ALS_CFG2	0x10
#define AAT2870_AMB		0x11
#define AAT2870_ALS0		0x12
#define AAT2870_ALS1		0x13
#define AAT2870_ALS2		0x14
#define AAT2870_ALS3		0x15
#define AAT2870_ALS4		0x16
#define AAT2870_ALS5		0x17
#define AAT2870_ALS6		0x18
#define AAT2870_ALS7		0x19
#define AAT2870_ALS8		0x1A
#define AAT2870_ALS9		0x1B
#define AAT2870_ALSA		0x1C
#define AAT2870_ALSB		0x1D
#define AAT2870_ALSC		0x1E
#define AAT2870_ALSD		0x1F
#define AAT2870_ALSE		0x20
#define AAT2870_ALSF		0x21
#define AAT2870_SUB_SET		0x22
#define AAT2870_SUB_CTRL	0x23
#define AAT2870_LDO_AB		0x24
#define AAT2870_LDO_CD		0x25
#define AAT2870_LDO_EN		0x26
#define AAT2870_REG_NUM		0x27

/* Device IDs */
enum aat2870_id {
	AAT2870_ID_BL,
	AAT2870_ID_LDOA,
	AAT2870_ID_LDOB,
	AAT2870_ID_LDOC,
	AAT2870_ID_LDOD
};

/* Backlight channels */
#define AAT2870_BL_CH1		0x01
#define AAT2870_BL_CH2		0x02
#define AAT2870_BL_CH3		0x04
#define AAT2870_BL_CH4		0x08
#define AAT2870_BL_CH5		0x10
#define AAT2870_BL_CH6		0x20
#define AAT2870_BL_CH7		0x40
#define AAT2870_BL_CH8		0x80
#define AAT2870_BL_CH_ALL	0xFF

/* Backlight current magnitude (mA) */
enum aat2870_current {
	AAT2870_CURRENT_0_45 = 1,
	AAT2870_CURRENT_0_90,
	AAT2870_CURRENT_1_80,
	AAT2870_CURRENT_2_70,
	AAT2870_CURRENT_3_60,
	AAT2870_CURRENT_4_50,
	AAT2870_CURRENT_5_40,
	AAT2870_CURRENT_6_30,
	AAT2870_CURRENT_7_20,
	AAT2870_CURRENT_8_10,
	AAT2870_CURRENT_9_00,
	AAT2870_CURRENT_9_90,
	AAT2870_CURRENT_10_8,
	AAT2870_CURRENT_11_7,
	AAT2870_CURRENT_12_6,
	AAT2870_CURRENT_13_5,
	AAT2870_CURRENT_14_4,
	AAT2870_CURRENT_15_3,
	AAT2870_CURRENT_16_2,
	AAT2870_CURRENT_17_1,
	AAT2870_CURRENT_18_0,
	AAT2870_CURRENT_18_9,
	AAT2870_CURRENT_19_8,
	AAT2870_CURRENT_20_7,
	AAT2870_CURRENT_21_6,
	AAT2870_CURRENT_22_5,
	AAT2870_CURRENT_23_4,
	AAT2870_CURRENT_24_3,
	AAT2870_CURRENT_25_2,
	AAT2870_CURRENT_26_1,
	AAT2870_CURRENT_27_0,
	AAT2870_CURRENT_27_9
};

struct aat2870_register {
	bool readable;
	bool writeable;
	u8 value;
};

struct aat2870_data {
	struct device *dev;
	struct i2c_client *client;

	struct mutex io_lock;
	struct aat2870_register *reg_cache; /* register cache */
	int en_pin; /* enable GPIO pin (if < 0, ignore this value) */
	bool is_enable;

	/* init and uninit for platform specified */
	int (*init)(struct aat2870_data *aat2870);
	void (*uninit)(struct aat2870_data *aat2870);

	/* i2c io funcntions */
	int (*read)(struct aat2870_data *aat2870, u8 addr, u8 *val);
	int (*write)(struct aat2870_data *aat2870, u8 addr, u8 val);
	int (*update)(struct aat2870_data *aat2870, u8 addr, u8 mask, u8 val);

	/* for debugfs */
	struct dentry *dentry_root;
	struct dentry *dentry_reg;
};

struct aat2870_subdev_info {
	int id;
	const char *name;
	void *platform_data;
};

struct aat2870_platform_data {
	int en_pin; /* enable GPIO pin (if < 0, ignore this value) */

	struct aat2870_subdev_info *subdevs;
	int num_subdevs;

	/* init and uninit for platform specified */
	int (*init)(struct aat2870_data *aat2870);
	void (*uninit)(struct aat2870_data *aat2870);
};

struct aat2870_bl_platform_data {
	/* backlight channels, default is AAT2870_BL_CH_ALL */
	int channels;
	/* backlight current magnitude, default is AAT2870_CURRENT_27_9 */
	int max_current;
	/* maximum brightness, default is 255 */
	int max_brightness;
};

#endif /* __LINUX_MFD_AAT2870_H */
Commit	Line	Data
09d6292b JP	1	/*
	2	* linux/include/linux/mfd/aat2870.h
	3	*
	4	* Copyright (c) 2011, NVIDIA Corporation.
	5	* Author: Jin Park <jinyoungp@nvidia.com>
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License
	9	* version 2 as published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	19	* 02110-1301 USA
	20	*/
	21
	22	#ifndef __LINUX_MFD_AAT2870_H
	23	#define __LINUX_MFD_AAT2870_H
	24
	25	#include <linux/debugfs.h>
	26	#include <linux/i2c.h>
	27
	28	/* Register offsets */
	29	#define AAT2870_BL_CH_EN 0x00
	30	#define AAT2870_BLM 0x01
	31	#define AAT2870_BLS 0x02
	32	#define AAT2870_BL1 0x03
	33	#define AAT2870_BL2 0x04
	34	#define AAT2870_BL3 0x05
	35	#define AAT2870_BL4 0x06
	36	#define AAT2870_BL5 0x07
	37	#define AAT2870_BL6 0x08
	38	#define AAT2870_BL7 0x09
	39	#define AAT2870_BL8 0x0A
	40	#define AAT2870_FLR 0x0B
	41	#define AAT2870_FM 0x0C
	42	#define AAT2870_FS 0x0D
	43	#define AAT2870_ALS_CFG0 0x0E
	44	#define AAT2870_ALS_CFG1 0x0F
	45	#define AAT2870_ALS_CFG2 0x10
	46	#define AAT2870_AMB 0x11
	47	#define AAT2870_ALS0 0x12
	48	#define AAT2870_ALS1 0x13
	49	#define AAT2870_ALS2 0x14
	50	#define AAT2870_ALS3 0x15
	51	#define AAT2870_ALS4 0x16
	52	#define AAT2870_ALS5 0x17
	53	#define AAT2870_ALS6 0x18
	54	#define AAT2870_ALS7 0x19
	55	#define AAT2870_ALS8 0x1A
	56	#define AAT2870_ALS9 0x1B
	57	#define AAT2870_ALSA 0x1C
	58	#define AAT2870_ALSB 0x1D
	59	#define AAT2870_ALSC 0x1E
	60	#define AAT2870_ALSD 0x1F
	61	#define AAT2870_ALSE 0x20
	62	#define AAT2870_ALSF 0x21
	63	#define AAT2870_SUB_SET 0x22
	64	#define AAT2870_SUB_CTRL 0x23
65	#define AAT2870_LDO_AB 0x24
66	#define AAT2870_LDO_CD 0x25
67	#define AAT2870_LDO_EN 0x26
68	#define AAT2870_REG_NUM 0x27
69
70	/* Device IDs */
71	enum aat2870_id {
72	AAT2870_ID_BL,
73	AAT2870_ID_LDOA,
74	AAT2870_ID_LDOB,
75	AAT2870_ID_LDOC,
76	AAT2870_ID_LDOD
77	};
78
79	/* Backlight channels */
80	#define AAT2870_BL_CH1 0x01
81	#define AAT2870_BL_CH2 0x02
82	#define AAT2870_BL_CH3 0x04
83	#define AAT2870_BL_CH4 0x08
84	#define AAT2870_BL_CH5 0x10
85	#define AAT2870_BL_CH6 0x20
86	#define AAT2870_BL_CH7 0x40
87	#define AAT2870_BL_CH8 0x80
88	#define AAT2870_BL_CH_ALL 0xFF
89
90	/* Backlight current magnitude (mA) */
91	enum aat2870_current {
5d6f921b	92	AAT2870_CURRENT_0_45 = 1,
09d6292b JP	93	AAT2870_CURRENT_0_90,
	94	AAT2870_CURRENT_1_80,
	95	AAT2870_CURRENT_2_70,
	96	AAT2870_CURRENT_3_60,
	97	AAT2870_CURRENT_4_50,
	98	AAT2870_CURRENT_5_40,
	99	AAT2870_CURRENT_6_30,
	100	AAT2870_CURRENT_7_20,
	101	AAT2870_CURRENT_8_10,
	102	AAT2870_CURRENT_9_00,
	103	AAT2870_CURRENT_9_90,
	104	AAT2870_CURRENT_10_8,
	105	AAT2870_CURRENT_11_7,
	106	AAT2870_CURRENT_12_6,
	107	AAT2870_CURRENT_13_5,
	108	AAT2870_CURRENT_14_4,
	109	AAT2870_CURRENT_15_3,
	110	AAT2870_CURRENT_16_2,
	111	AAT2870_CURRENT_17_1,
	112	AAT2870_CURRENT_18_0,
	113	AAT2870_CURRENT_18_9,
	114	AAT2870_CURRENT_19_8,
	115	AAT2870_CURRENT_20_7,
	116	AAT2870_CURRENT_21_6,
	117	AAT2870_CURRENT_22_5,
	118	AAT2870_CURRENT_23_4,
	119	AAT2870_CURRENT_24_3,
	120	AAT2870_CURRENT_25_2,
	121	AAT2870_CURRENT_26_1,
	122	AAT2870_CURRENT_27_0,
	123	AAT2870_CURRENT_27_9
	124	};
	125
	126	struct aat2870_register {
	127	bool readable;
	128	bool writeable;
	129	u8 value;
	130	};
	131
	132	struct aat2870_data {
	133	struct device *dev;
	134	struct i2c_client *client;
	135
	136	struct mutex io_lock;
	137	struct aat2870_register reg_cache; / register cache */
	138	int en_pin; /* enable GPIO pin (if < 0, ignore this value) */
	139	bool is_enable;
	140
	141	/* init and uninit for platform specified */
	142	int (init)(struct aat2870_data aat2870);
	143	void (uninit)(struct aat2870_data aat2870);
	144
	145	/* i2c io funcntions */
	146	int (read)(struct aat2870_data aat2870, u8 addr, u8 *val);
	147	int (write)(struct aat2870_data aat2870, u8 addr, u8 val);
	148	int (update)(struct aat2870_data aat2870, u8 addr, u8 mask, u8 val);
	149
	150	/* for debugfs */
	151	struct dentry *dentry_root;
	152	struct dentry *dentry_reg;
	153	};
	154
	155	struct aat2870_subdev_info {
	156	int id;
157	const char *name;
158	void *platform_data;
159	};
160
161	struct aat2870_platform_data {
162	int en_pin; /* enable GPIO pin (if < 0, ignore this value) */
163
164	struct aat2870_subdev_info *subdevs;
165	int num_subdevs;
166
167	/* init and uninit for platform specified */
168	int (init)(struct aat2870_data aat2870);
169	void (uninit)(struct aat2870_data aat2870);
170	};
171
172	struct aat2870_bl_platform_data {
173	/* backlight channels, default is AAT2870_BL_CH_ALL */
174	int channels;
175	/* backlight current magnitude, default is AAT2870_CURRENT_27_9 */
176	int max_current;
177	/* maximum brightness, default is 255 */
178	int max_brightness;
179	};
180
181	#endif /* __LINUX_MFD_AAT2870_H */