1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Functions to access LP87565 power management chip.
4  *
5  * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
6  */
7 
8 #ifndef __LINUX_MFD_LP87565_H
9 #define __LINUX_MFD_LP87565_H
10 
11 #include <linux/i2c.h>
12 #include <linux/regulator/driver.h>
13 #include <linux/regulator/machine.h>
14 
15 enum lp87565_device_type {
16 	LP87565_DEVICE_TYPE_UNKNOWN	= 0,
17 	LP87565_DEVICE_TYPE_LP87561_Q1,
18 	LP87565_DEVICE_TYPE_LP87565_Q1,
19 };
20 
21 /* All register addresses */
22 #define LP87565_REG_DEV_REV		0X00
23 #define LP87565_REG_OTP_REV		0X01
24 #define LP87565_REG_BUCK0_CTRL_1		0X02
25 #define LP87565_REG_BUCK0_CTRL_2		0X03
26 
27 #define LP87565_REG_BUCK1_CTRL_1		0X04
28 #define LP87565_REG_BUCK1_CTRL_2		0X05
29 
30 #define LP87565_REG_BUCK2_CTRL_1		0X06
31 #define LP87565_REG_BUCK2_CTRL_2		0X07
32 
33 #define LP87565_REG_BUCK3_CTRL_1		0X08
34 #define LP87565_REG_BUCK3_CTRL_2		0X09
35 
36 #define LP87565_REG_BUCK0_VOUT			0X0A
37 #define LP87565_REG_BUCK0_FLOOR_VOUT		0X0B
38 
39 #define LP87565_REG_BUCK1_VOUT			0X0C
40 #define LP87565_REG_BUCK1_FLOOR_VOUT		0X0D
41 
42 #define LP87565_REG_BUCK2_VOUT			0X0E
43 #define LP87565_REG_BUCK2_FLOOR_VOUT		0X0F
44 
45 #define LP87565_REG_BUCK3_VOUT			0X10
46 #define LP87565_REG_BUCK3_FLOOR_VOUT		0X11
47 
48 #define LP87565_REG_BUCK0_DELAY			0X12
49 #define LP87565_REG_BUCK1_DELAY			0X13
50 
51 #define LP87565_REG_BUCK2_DELAY			0X14
52 #define LP87565_REG_BUCK3_DELAY			0X15
53 
54 #define LP87565_REG_GPO2_DELAY			0X16
55 #define LP87565_REG_GPO3_DELAY			0X17
56 #define LP87565_REG_RESET			0X18
57 #define LP87565_REG_CONFIG			0X19
58 
59 #define LP87565_REG_INT_TOP_1			0X1A
60 #define LP87565_REG_INT_TOP_2			0X1B
61 
62 #define LP87565_REG_INT_BUCK_0_1		0X1C
63 #define LP87565_REG_INT_BUCK_2_3		0X1D
64 #define LP87565_REG_TOP_STAT			0X1E
65 #define LP87565_REG_BUCK_0_1_STAT		0X1F
66 #define LP87565_REG_BUCK_2_3_STAT		0x20
67 
68 #define LP87565_REG_TOP_MASK_1			0x21
69 #define LP87565_REG_TOP_MASK_2			0x22
70 
71 #define LP87565_REG_BUCK_0_1_MASK		0x23
72 #define LP87565_REG_BUCK_2_3_MASK		0x24
73 #define LP87565_REG_SEL_I_LOAD			0x25
74 
75 #define LP87565_REG_I_LOAD_2			0x26
76 #define LP87565_REG_I_LOAD_1			0x27
77 
78 #define LP87565_REG_PGOOD_CTRL1			0x28
79 #define LP87565_REG_PGOOD_CTRL2			0x29
80 #define LP87565_REG_PGOOD_FLT			0x2A
81 #define LP87565_REG_PLL_CTRL			0x2B
82 #define LP87565_REG_PIN_FUNCTION		0x2C
83 #define LP87565_REG_GPIO_CONFIG			0x2D
84 #define LP87565_REG_GPIO_IN			0x2E
85 #define LP87565_REG_GPIO_OUT			0x2F
86 
87 #define LP87565_REG_MAX			LP87565_REG_GPIO_OUT
88 
89 /* Register field definitions */
90 #define LP87565_DEV_REV_DEV_ID			0xC0
91 #define LP87565_DEV_REV_ALL_LAYER		0x30
92 #define LP87565_DEV_REV_METAL_LAYER		0x0F
93 
94 #define LP87565_OTP_REV_OTP_ID			0xFF
95 
96 #define LP87565_BUCK_CTRL_1_EN			BIT(7)
97 #define LP87565_BUCK_CTRL_1_EN_PIN_CTRL		BIT(6)
98 #define LP87565_BUCK_CTRL_1_PIN_SELECT_EN	0x30
99 
100 #define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN	BIT(3)
101 #define LP87565_BUCK_CTRL_1_RDIS_EN		BIT(2)
102 #define LP87565_BUCK_CTRL_1_FPWM		BIT(1)
103 /* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */
104 #define LP87565_BUCK_CTRL_1_FPWM_MP_0_2		BIT(0)
105 
106 #define LP87565_BUCK_CTRL_2_ILIM		0x38
107 #define LP87565_BUCK_CTRL_2_SLEW_RATE		0x07
108 
109 #define LP87565_BUCK_VSET			0xFF
110 #define LP87565_BUCK_FLOOR_VSET			0xFF
111 
112 #define LP87565_BUCK_SHUTDOWN_DELAY		0xF0
113 #define LP87565_BUCK_STARTUP_DELAY		0x0F
114 
115 #define LP87565_GPIO_SHUTDOWN_DELAY		0xF0
116 #define LP87565_GPIO_STARTUP_DELAY		0x0F
117 
118 #define LP87565_RESET_SW_RESET			BIT(0)
119 
120 #define LP87565_CONFIG_DOUBLE_DELAY		BIT(7)
121 #define LP87565_CONFIG_CLKIN_PD			BIT(6)
122 #define LP87565_CONFIG_EN4_PD			BIT(5)
123 #define LP87565_CONFIG_EN3_PD			BIT(4)
124 #define LP87565_CONFIG_TDIE_WARN_LEVEL		BIT(3)
125 #define LP87565_CONFIG_EN2_PD			BIT(2)
126 #define LP87565_CONFIG_EN1_PD			BIT(1)
127 
128 #define LP87565_INT_GPIO			BIT(7)
129 #define LP87565_INT_BUCK23			BIT(6)
130 #define LP87565_INT_BUCK01			BIT(5)
131 #define LP87565_NO_SYNC_CLK			BIT(4)
132 #define LP87565_TDIE_SD				BIT(3)
133 #define LP87565_TDIE_WARN			BIT(2)
134 #define LP87565_INT_OVP				BIT(1)
135 #define LP87565_I_LOAD_READY			BIT(0)
136 
137 #define LP87565_INT_TOP2_RESET_REG		BIT(0)
138 
139 #define LP87565_BUCK1_PG_INT			BIT(6)
140 #define LP87565_BUCK1_SC_INT			BIT(5)
141 #define LP87565_BUCK1_ILIM_INT			BIT(4)
142 #define LP87565_BUCK0_PG_INT			BIT(2)
143 #define LP87565_BUCK0_SC_INT			BIT(1)
144 #define LP87565_BUCK0_ILIM_INT			BIT(0)
145 
146 #define LP87565_BUCK3_PG_INT			BIT(6)
147 #define LP87565_BUCK3_SC_INT			BIT(5)
148 #define LP87565_BUCK3_ILIM_INT			BIT(4)
149 #define LP87565_BUCK2_PG_INT			BIT(2)
150 #define LP87565_BUCK2_SC_INT			BIT(1)
151 #define LP87565_BUCK2_ILIM_INT			BIT(0)
152 
153 #define LP87565_SYNC_CLK_STAT			BIT(4)
154 #define LP87565_TDIE_SD_STAT			BIT(3)
155 #define LP87565_TDIE_WARN_STAT			BIT(2)
156 #define LP87565_OVP_STAT			BIT(1)
157 
158 #define LP87565_BUCK1_STAT			BIT(7)
159 #define LP87565_BUCK1_PG_STAT			BIT(6)
160 #define LP87565_BUCK1_ILIM_STAT			BIT(4)
161 #define LP87565_BUCK0_STAT			BIT(3)
162 #define LP87565_BUCK0_PG_STAT			BIT(2)
163 #define LP87565_BUCK0_ILIM_STAT			BIT(0)
164 
165 #define LP87565_BUCK3_STAT			BIT(7)
166 #define LP87565_BUCK3_PG_STAT			BIT(6)
167 #define LP87565_BUCK3_ILIM_STAT			BIT(4)
168 #define LP87565_BUCK2_STAT			BIT(3)
169 #define LP87565_BUCK2_PG_STAT			BIT(2)
170 #define LP87565_BUCK2_ILIM_STAT			BIT(0)
171 
172 #define LPL87565_GPIO_MASK			BIT(7)
173 #define LPL87565_SYNC_CLK_MASK			BIT(4)
174 #define LPL87565_TDIE_WARN_MASK			BIT(2)
175 #define LPL87565_I_LOAD_READY_MASK		BIT(0)
176 
177 #define LPL87565_RESET_REG_MASK			BIT(0)
178 
179 #define LPL87565_BUCK1_PG_MASK			BIT(6)
180 #define LPL87565_BUCK1_ILIM_MASK		BIT(4)
181 #define LPL87565_BUCK0_PG_MASK			BIT(2)
182 #define LPL87565_BUCK0_ILIM_MASK		BIT(0)
183 
184 #define LPL87565_BUCK3_PG_MASK			BIT(6)
185 #define LPL87565_BUCK3_ILIM_MASK		BIT(4)
186 #define LPL87565_BUCK2_PG_MASK			BIT(2)
187 #define LPL87565_BUCK2_ILIM_MASK		BIT(0)
188 
189 #define LP87565_LOAD_CURRENT_BUCK_SELECT	0x3
190 
191 #define LP87565_I_LOAD2_BUCK_LOAD_CURRENT	0x3
192 #define LP87565_I_LOAD1_BUCK_LOAD_CURRENT	0xFF
193 
194 #define LP87565_PG3_SEL				0xC0
195 #define LP87565_PG2_SEL				0x30
196 #define LP87565_PG1_SEL				0x0C
197 #define LP87565_PG0_SEL				0x03
198 
199 #define LP87565_HALF_DAY			BIT(7)
200 #define LP87565_EN_PG0_NINT			BIT(6)
201 #define LP87565_PGOOD_SET_DELAY			BIT(5)
202 #define LP87565_EN_PGFLT_STAT			BIT(4)
203 #define LP87565_PGOOD_WINDOW			BIT(2)
204 #define LP87565_PGOOD_OD			BIT(1)
205 #define LP87565_PGOOD_POL			BIT(0)
206 
207 #define LP87565_PG3_FLT				BIT(3)
208 #define LP87565_PG2_FLT				BIT(2)
209 #define LP87565_PG1_FLT				BIT(1)
210 #define LP87565_PG0_FLT				BIT(0)
211 
212 #define LP87565_PLL_MODE			0xC0
213 #define LP87565_EXT_CLK_FREQ			0x1F
214 
215 #define LP87565_EN_SPREAD_SPEC			BIT(7)
216 #define LP87565_EN_PIN_CTRL_GPIO3		BIT(6)
217 #define LP87565_EN_PIN_SELECT_GPIO3		BIT(5)
218 #define LP87565_EN_PIN_CTRL_GPIO2		BIT(4)
219 #define LP87565_EN_PIN_SELECT_GPIO2		BIT(3)
220 #define LP87565_GPIO3_SEL			BIT(2)
221 #define LP87565_GPIO2_SEL			BIT(1)
222 #define LP87565_GPIO1_SEL			BIT(0)
223 
224 #define LP87565_GOIO3_OD			BIT(6)
225 #define LP87565_GOIO2_OD			BIT(5)
226 #define LP87565_GOIO1_OD			BIT(4)
227 #define LP87565_GOIO3_DIR			BIT(2)
228 #define LP87565_GOIO2_DIR			BIT(1)
229 #define LP87565_GOIO1_DIR			BIT(0)
230 
231 #define LP87565_GOIO3_IN			BIT(2)
232 #define LP87565_GOIO2_IN			BIT(1)
233 #define LP87565_GOIO1_IN			BIT(0)
234 
235 #define LP87565_GOIO3_OUT			BIT(2)
236 #define LP87565_GOIO2_OUT			BIT(1)
237 #define LP87565_GOIO1_OUT			BIT(0)
238 
239 /* Number of step-down converters available */
240 #define LP87565_NUM_BUCK		6
241 
242 enum LP87565_regulator_id {
243 	/* BUCK's */
244 	LP87565_BUCK_0,
245 	LP87565_BUCK_1,
246 	LP87565_BUCK_2,
247 	LP87565_BUCK_3,
248 	LP87565_BUCK_10,
249 	LP87565_BUCK_23,
250 	LP87565_BUCK_3210,
251 };
252 
253 /**
254  * struct LP87565 - state holder for the LP87565 driver
255  * @dev: struct device pointer for MFD device
256  * @rev: revision of the LP87565
257  * @dev_type: The device type for example lp87565-q1
258  * @lock: lock guarding the data structure
259  * @regmap: register map of the LP87565 PMIC
260  *
261  * Device data may be used to access the LP87565 chip
262  */
263 struct lp87565 {
264 	struct device *dev;
265 	u8 rev;
266 	u8 dev_type;
267 	struct regmap *regmap;
268 };
269 #endif /* __LINUX_MFD_LP87565_H */
270