1 /*
2  * max8997.h - Driver for the Maxim 8997/8966
3  *
4  *  Copyright (C) 2009-2010 Samsung Electrnoics
5  *  MyungJoo Ham <myungjoo.ham@samsung.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  *
21  * This driver is based on max8998.h
22  *
23  * MAX8997 has PMIC, MUIC, HAPTIC, RTC, FLASH, and Fuel Gauge devices.
24  * Except Fuel Gauge, every device shares the same I2C bus and included in
25  * this mfd driver. Although the fuel gauge is included in the chip, it is
26  * excluded from the driver because a) it has a different I2C bus from
27  * others and b) it can be enabled simply by using MAX17042 driver.
28  */
29 
30 #ifndef __LINUX_MFD_MAX8998_H
31 #define __LINUX_MFD_MAX8998_H
32 
33 #include <linux/regulator/consumer.h>
34 
35 /* MAX8997/8966 regulator IDs */
36 enum max8998_regulators {
37 	MAX8997_LDO1 = 0,
38 	MAX8997_LDO2,
39 	MAX8997_LDO3,
40 	MAX8997_LDO4,
41 	MAX8997_LDO5,
42 	MAX8997_LDO6,
43 	MAX8997_LDO7,
44 	MAX8997_LDO8,
45 	MAX8997_LDO9,
46 	MAX8997_LDO10,
47 	MAX8997_LDO11,
48 	MAX8997_LDO12,
49 	MAX8997_LDO13,
50 	MAX8997_LDO14,
51 	MAX8997_LDO15,
52 	MAX8997_LDO16,
53 	MAX8997_LDO17,
54 	MAX8997_LDO18,
55 	MAX8997_LDO21,
56 	MAX8997_BUCK1,
57 	MAX8997_BUCK2,
58 	MAX8997_BUCK3,
59 	MAX8997_BUCK4,
60 	MAX8997_BUCK5,
61 	MAX8997_BUCK6,
62 	MAX8997_BUCK7,
63 	MAX8997_EN32KHZ_AP,
64 	MAX8997_EN32KHZ_CP,
65 	MAX8997_ENVICHG,
66 	MAX8997_ESAFEOUT1,
67 	MAX8997_ESAFEOUT2,
68 	MAX8997_CHARGER_CV, /* control MBCCV of MBCCTRL3 */
69 	MAX8997_CHARGER, /* charger current, MBCCTRL4 */
70 	MAX8997_CHARGER_TOPOFF, /* MBCCTRL5 */
71 
72 	MAX8997_REG_MAX,
73 };
74 
75 struct max8997_regulator_data {
76 	int id;
77 	struct regulator_init_data *initdata;
78 	struct device_node *reg_node;
79 };
80 
81 struct max8997_muic_reg_data {
82 	u8 addr;
83 	u8 data;
84 };
85 
86 /**
87  * struct max8997_muic_platform_data
88  * @init_data: array of max8997_muic_reg_data
89  *	       used for initializing registers of MAX8997 MUIC device
90  * @num_init_data: array size of init_data
91  */
92 struct max8997_muic_platform_data {
93 	struct max8997_muic_reg_data *init_data;
94 	int num_init_data;
95 
96 	/* Check cable state after certain delay */
97 	int detcable_delay_ms;
98 
99 	/*
100 	 * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB
101 	 * h/w path of COMP2/COMN1 on CONTROL1 register.
102 	 */
103 	int path_usb;
104 	int path_uart;
105 };
106 
107 enum max8997_haptic_motor_type {
108 	MAX8997_HAPTIC_ERM,
109 	MAX8997_HAPTIC_LRA,
110 };
111 
112 enum max8997_haptic_pulse_mode {
113 	MAX8997_EXTERNAL_MODE,
114 	MAX8997_INTERNAL_MODE,
115 };
116 
117 enum max8997_haptic_pwm_divisor {
118 	MAX8997_PWM_DIVISOR_32,
119 	MAX8997_PWM_DIVISOR_64,
120 	MAX8997_PWM_DIVISOR_128,
121 	MAX8997_PWM_DIVISOR_256,
122 };
123 
124 /**
125  * max8997_haptic_platform_data
126  * @pwm_channel_id: channel number of PWM device
127  *		    valid for MAX8997_EXTERNAL_MODE
128  * @pwm_period: period in nano second for PWM device
129  *		valid for MAX8997_EXTERNAL_MODE
130  * @type: motor type
131  * @mode: pulse mode
132  *     MAX8997_EXTERNAL_MODE: external PWM device is used to control motor
133  *     MAX8997_INTERNAL_MODE: internal pulse generator is used to control motor
134  * @pwm_divisor: divisor for external PWM device
135  * @internal_mode_pattern: internal mode pattern for internal mode
136  *     [0 - 3]: valid pattern number
137  * @pattern_cycle: the number of cycles of the waveform
138  *		   for the internal mode pattern
139  *     [0 - 15]: available cycles
140  * @pattern_signal_period: period of the waveform for the internal mode pattern
141  *     [0 - 255]: available period
142  */
143 struct max8997_haptic_platform_data {
144 	unsigned int pwm_channel_id;
145 	unsigned int pwm_period;
146 
147 	enum max8997_haptic_motor_type type;
148 	enum max8997_haptic_pulse_mode mode;
149 	enum max8997_haptic_pwm_divisor pwm_divisor;
150 
151 	unsigned int internal_mode_pattern;
152 	unsigned int pattern_cycle;
153 	unsigned int pattern_signal_period;
154 };
155 
156 enum max8997_led_mode {
157 	MAX8997_NONE,
158 	MAX8997_FLASH_MODE,
159 	MAX8997_MOVIE_MODE,
160 	MAX8997_FLASH_PIN_CONTROL_MODE,
161 	MAX8997_MOVIE_PIN_CONTROL_MODE,
162 };
163 
164 /**
165  *  struct max8997_led_platform_data
166  *  The number of LED devices for MAX8997 is two
167  *  @mode: LED mode for each LED device
168  *  @brightness: initial brightness for each LED device
169  *	range:
170  *	[0 - 31]: MAX8997_FLASH_MODE and MAX8997_FLASH_PIN_CONTROL_MODE
171  *	[0 - 15]: MAX8997_MOVIE_MODE and MAX8997_MOVIE_PIN_CONTROL_MODE
172  */
173 struct max8997_led_platform_data {
174 	enum max8997_led_mode mode[2];
175 	u8 brightness[2];
176 };
177 
178 struct max8997_platform_data {
179 	/* IRQ */
180 	int ono;
181 
182 	/* ---- PMIC ---- */
183 	struct max8997_regulator_data *regulators;
184 	int num_regulators;
185 
186 	/*
187 	 * SET1~3 DVS GPIOs control Buck1, 2, and 5 simultaneously. Therefore,
188 	 * With buckx_gpiodvs enabled, the buckx cannot be controlled
189 	 * independently. To control buckx (of 1, 2, and 5) independently,
190 	 * disable buckx_gpiodvs and control with BUCKxDVS1 register.
191 	 *
192 	 * When buckx_gpiodvs and bucky_gpiodvs are both enabled, set_voltage
193 	 * on buckx will change the voltage of bucky at the same time.
194 	 *
195 	 */
196 	bool ignore_gpiodvs_side_effect;
197 	int buck125_gpios[3]; /* GPIO of [0]SET1, [1]SET2, [2]SET3 */
198 	int buck125_default_idx; /* Default value of SET1, 2, 3 */
199 	unsigned int buck1_voltage[8]; /* buckx_voltage in uV */
200 	bool buck1_gpiodvs;
201 	unsigned int buck2_voltage[8];
202 	bool buck2_gpiodvs;
203 	unsigned int buck5_voltage[8];
204 	bool buck5_gpiodvs;
205 
206 	/* ---- Charger control ---- */
207 	/* eoc stands for 'end of charge' */
208 	int eoc_mA; /* 50 ~ 200mA by 10mA step */
209 	/* charge Full Timeout */
210 	int timeout; /* 0 (no timeout), 5, 6, 7 hours */
211 
212 	/* ---- MUIC ---- */
213 	struct max8997_muic_platform_data *muic_pdata;
214 
215 	/* ---- HAPTIC ---- */
216 	struct max8997_haptic_platform_data *haptic_pdata;
217 
218 	/* RTC: Not implemented */
219 	/* ---- LED ---- */
220 	struct max8997_led_platform_data *led_pdata;
221 };
222 
223 #endif /* __LINUX_MFD_MAX8998_H */
224