xref: /openbmc/linux/include/linux/mfd/rohm-bd718x7.h (revision ccb01374)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* Copyright (C) 2018 ROHM Semiconductors */
3 
4 #ifndef __LINUX_MFD_BD718XX_H__
5 #define __LINUX_MFD_BD718XX_H__
6 
7 #include <linux/regmap.h>
8 
9 enum {
10 	BD718XX_TYPE_BD71837 = 0,
11 	BD718XX_TYPE_BD71847,
12 	BD718XX_TYPE_AMOUNT
13 };
14 
15 enum {
16 	BD718XX_BUCK1 = 0,
17 	BD718XX_BUCK2,
18 	BD718XX_BUCK3,
19 	BD718XX_BUCK4,
20 	BD718XX_BUCK5,
21 	BD718XX_BUCK6,
22 	BD718XX_BUCK7,
23 	BD718XX_BUCK8,
24 	BD718XX_LDO1,
25 	BD718XX_LDO2,
26 	BD718XX_LDO3,
27 	BD718XX_LDO4,
28 	BD718XX_LDO5,
29 	BD718XX_LDO6,
30 	BD718XX_LDO7,
31 	BD718XX_REGULATOR_AMOUNT,
32 };
33 
34 /* Common voltage configurations */
35 #define BD718XX_DVS_BUCK_VOLTAGE_NUM		0x3D
36 #define BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM	0x3D
37 
38 #define BD718XX_LDO1_VOLTAGE_NUM	0x08
39 #define BD718XX_LDO2_VOLTAGE_NUM	0x02
40 #define BD718XX_LDO3_VOLTAGE_NUM	0x10
41 #define BD718XX_LDO4_VOLTAGE_NUM	0x0A
42 #define BD718XX_LDO6_VOLTAGE_NUM	0x0A
43 
44 /* BD71837 specific voltage configurations */
45 #define BD71837_BUCK5_VOLTAGE_NUM	0x10
46 #define BD71837_BUCK6_VOLTAGE_NUM	0x04
47 #define BD71837_BUCK7_VOLTAGE_NUM	0x08
48 #define BD71837_LDO5_VOLTAGE_NUM	0x10
49 #define BD71837_LDO7_VOLTAGE_NUM	0x10
50 
51 /* BD71847 specific voltage configurations */
52 #define BD71847_BUCK3_VOLTAGE_NUM	0x18
53 #define BD71847_BUCK4_VOLTAGE_NUM	0x08
54 #define BD71847_LDO5_VOLTAGE_NUM	0x20
55 
56 /* Registers specific to BD71837 */
57 enum {
58 	BD71837_REG_BUCK3_CTRL =	0x07,
59 	BD71837_REG_BUCK4_CTRL =	0x08,
60 	BD71837_REG_BUCK3_VOLT_RUN =	0x12,
61 	BD71837_REG_BUCK4_VOLT_RUN =	0x13,
62 	BD71837_REG_LDO7_VOLT =		0x1E,
63 };
64 
65 /* Registers common for BD71837 and BD71847 */
66 enum {
67 	BD718XX_REG_REV =			0x00,
68 	BD718XX_REG_SWRESET =			0x01,
69 	BD718XX_REG_I2C_DEV =			0x02,
70 	BD718XX_REG_PWRCTRL0 =			0x03,
71 	BD718XX_REG_PWRCTRL1 =			0x04,
72 	BD718XX_REG_BUCK1_CTRL =		0x05,
73 	BD718XX_REG_BUCK2_CTRL =		0x06,
74 	BD718XX_REG_1ST_NODVS_BUCK_CTRL =	0x09,
75 	BD718XX_REG_2ND_NODVS_BUCK_CTRL =	0x0A,
76 	BD718XX_REG_3RD_NODVS_BUCK_CTRL =	0x0B,
77 	BD718XX_REG_4TH_NODVS_BUCK_CTRL =	0x0C,
78 	BD718XX_REG_BUCK1_VOLT_RUN =		0x0D,
79 	BD718XX_REG_BUCK1_VOLT_IDLE =		0x0E,
80 	BD718XX_REG_BUCK1_VOLT_SUSP =		0x0F,
81 	BD718XX_REG_BUCK2_VOLT_RUN =		0x10,
82 	BD718XX_REG_BUCK2_VOLT_IDLE =		0x11,
83 	BD718XX_REG_1ST_NODVS_BUCK_VOLT =	0x14,
84 	BD718XX_REG_2ND_NODVS_BUCK_VOLT =	0x15,
85 	BD718XX_REG_3RD_NODVS_BUCK_VOLT =	0x16,
86 	BD718XX_REG_4TH_NODVS_BUCK_VOLT =	0x17,
87 	BD718XX_REG_LDO1_VOLT =			0x18,
88 	BD718XX_REG_LDO2_VOLT =			0x19,
89 	BD718XX_REG_LDO3_VOLT =			0x1A,
90 	BD718XX_REG_LDO4_VOLT =			0x1B,
91 	BD718XX_REG_LDO5_VOLT =			0x1C,
92 	BD718XX_REG_LDO6_VOLT =			0x1D,
93 	BD718XX_REG_TRANS_COND0 =		0x1F,
94 	BD718XX_REG_TRANS_COND1 =		0x20,
95 	BD718XX_REG_VRFAULTEN =			0x21,
96 	BD718XX_REG_MVRFLTMASK0 =		0x22,
97 	BD718XX_REG_MVRFLTMASK1 =		0x23,
98 	BD718XX_REG_MVRFLTMASK2 =		0x24,
99 	BD718XX_REG_RCVCFG =			0x25,
100 	BD718XX_REG_RCVNUM =			0x26,
101 	BD718XX_REG_PWRONCONFIG0 =		0x27,
102 	BD718XX_REG_PWRONCONFIG1 =		0x28,
103 	BD718XX_REG_RESETSRC =			0x29,
104 	BD718XX_REG_MIRQ =			0x2A,
105 	BD718XX_REG_IRQ =			0x2B,
106 	BD718XX_REG_IN_MON =			0x2C,
107 	BD718XX_REG_POW_STATE =			0x2D,
108 	BD718XX_REG_OUT32K =			0x2E,
109 	BD718XX_REG_REGLOCK =			0x2F,
110 	BD718XX_REG_OTPVER =			0xFF,
111 	BD718XX_MAX_REGISTER =			0x100,
112 };
113 
114 #define REGLOCK_PWRSEQ	0x1
115 #define REGLOCK_VREG	0x10
116 
117 /* Generic BUCK control masks */
118 #define BD718XX_BUCK_SEL	0x02
119 #define BD718XX_BUCK_EN		0x01
120 #define BD718XX_BUCK_RUN_ON	0x04
121 
122 /* Generic LDO masks */
123 #define BD718XX_LDO_SEL		0x80
124 #define BD718XX_LDO_EN		0x40
125 
126 /* BD71837 BUCK ramp rate CTRL reg bits */
127 #define BUCK_RAMPRATE_MASK	0xC0
128 #define BUCK_RAMPRATE_10P00MV	0x0
129 #define BUCK_RAMPRATE_5P00MV	0x1
130 #define BUCK_RAMPRATE_2P50MV	0x2
131 #define BUCK_RAMPRATE_1P25MV	0x3
132 
133 #define DVS_BUCK_RUN_MASK	0x3F
134 #define DVS_BUCK_SUSP_MASK	0x3F
135 #define DVS_BUCK_IDLE_MASK	0x3F
136 
137 #define BD718XX_1ST_NODVS_BUCK_MASK	0x07
138 #define BD718XX_3RD_NODVS_BUCK_MASK	0x07
139 #define BD718XX_4TH_NODVS_BUCK_MASK	0x3F
140 
141 #define BD71847_BUCK3_MASK		0x07
142 #define BD71847_BUCK3_RANGE_MASK	0xC0
143 #define BD71847_BUCK4_MASK		0x03
144 #define BD71847_BUCK4_RANGE_MASK	0x40
145 
146 #define BD71837_BUCK5_MASK		0x07
147 #define BD71837_BUCK5_RANGE_MASK	0x80
148 #define BD71837_BUCK6_MASK		0x03
149 
150 #define BD718XX_LDO1_MASK		0x03
151 #define BD718XX_LDO1_RANGE_MASK		0x20
152 #define BD718XX_LDO2_MASK		0x20
153 #define BD718XX_LDO3_MASK		0x0F
154 #define BD718XX_LDO4_MASK		0x0F
155 #define BD718XX_LDO6_MASK		0x0F
156 
157 #define BD71837_LDO5_MASK		0x0F
158 #define BD71847_LDO5_MASK		0x0F
159 #define BD71847_LDO5_RANGE_MASK		0x20
160 
161 #define BD71837_LDO7_MASK		0x0F
162 
163 /* BD718XX Voltage monitoring masks */
164 #define BD718XX_BUCK1_VRMON80           0x1
165 #define BD718XX_BUCK1_VRMON130          0x2
166 #define BD718XX_BUCK2_VRMON80           0x4
167 #define BD718XX_BUCK2_VRMON130          0x8
168 #define BD718XX_1ST_NODVS_BUCK_VRMON80  0x1
169 #define BD718XX_1ST_NODVS_BUCK_VRMON130 0x2
170 #define BD718XX_2ND_NODVS_BUCK_VRMON80  0x4
171 #define BD718XX_2ND_NODVS_BUCK_VRMON130 0x8
172 #define BD718XX_3RD_NODVS_BUCK_VRMON80  0x10
173 #define BD718XX_3RD_NODVS_BUCK_VRMON130 0x20
174 #define BD718XX_4TH_NODVS_BUCK_VRMON80  0x40
175 #define BD718XX_4TH_NODVS_BUCK_VRMON130 0x80
176 #define BD718XX_LDO1_VRMON80            0x1
177 #define BD718XX_LDO2_VRMON80            0x2
178 #define BD718XX_LDO3_VRMON80            0x4
179 #define BD718XX_LDO4_VRMON80            0x8
180 #define BD718XX_LDO5_VRMON80            0x10
181 #define BD718XX_LDO6_VRMON80            0x20
182 
183 /* BD71837 specific voltage monitoring masks */
184 #define BD71837_BUCK3_VRMON80           0x10
185 #define BD71837_BUCK3_VRMON130          0x20
186 #define BD71837_BUCK4_VRMON80           0x40
187 #define BD71837_BUCK4_VRMON130          0x80
188 #define BD71837_LDO7_VRMON80            0x40
189 
190 /* BD718XX_REG_IRQ bits */
191 #define IRQ_SWRST		0x40
192 #define IRQ_PWRON_S		0x20
193 #define IRQ_PWRON_L		0x10
194 #define IRQ_PWRON		0x08
195 #define IRQ_WDOG		0x04
196 #define IRQ_ON_REQ		0x02
197 #define IRQ_STBY_REQ		0x01
198 
199 /* BD718XX_REG_OUT32K bits */
200 #define BD718XX_OUT32K_EN	0x01
201 
202 /* BD7183XX gated clock rate */
203 #define BD718XX_CLK_RATE 32768
204 
205 /* ROHM BD718XX irqs */
206 enum {
207 	BD718XX_INT_STBY_REQ,
208 	BD718XX_INT_ON_REQ,
209 	BD718XX_INT_WDOG,
210 	BD718XX_INT_PWRBTN,
211 	BD718XX_INT_PWRBTN_L,
212 	BD718XX_INT_PWRBTN_S,
213 	BD718XX_INT_SWRST
214 };
215 
216 /* ROHM BD718XX interrupt masks */
217 #define BD718XX_INT_SWRST_MASK		0x40
218 #define BD718XX_INT_PWRBTN_S_MASK	0x20
219 #define BD718XX_INT_PWRBTN_L_MASK	0x10
220 #define BD718XX_INT_PWRBTN_MASK		0x8
221 #define BD718XX_INT_WDOG_MASK		0x4
222 #define BD718XX_INT_ON_REQ_MASK		0x2
223 #define BD718XX_INT_STBY_REQ_MASK	0x1
224 
225 /* Register write induced reset settings */
226 
227 /*
228  * Even though the bit zero is not SWRESET type we still want to write zero
229  * to it when changing type. Bit zero is 'SWRESET' trigger bit and if we
230  * write 1 to it we will trigger the action. So always write 0 to it when
231  * changning SWRESET action - no matter what we read from it.
232  */
233 #define BD718XX_SWRESET_TYPE_MASK	7
234 #define BD718XX_SWRESET_TYPE_DISABLED	0
235 #define BD718XX_SWRESET_TYPE_COLD	4
236 #define BD718XX_SWRESET_TYPE_WARM	6
237 
238 #define BD718XX_SWRESET_RESET_MASK	1
239 #define BD718XX_SWRESET_RESET		1
240 
241 /* Poweroff state transition conditions */
242 
243 #define BD718XX_ON_REQ_POWEROFF_MASK	1
244 #define BD718XX_SWRESET_POWEROFF_MASK	2
245 #define BD718XX_WDOG_POWEROFF_MASK	4
246 #define BD718XX_KEY_L_POWEROFF_MASK	8
247 
248 #define BD718XX_POWOFF_TO_SNVS	0
249 #define BD718XX_POWOFF_TO_RDY	0xF
250 
251 #define BD718XX_POWOFF_TIME_MASK 0xF0
252 enum {
253 	BD718XX_POWOFF_TIME_5MS = 0,
254 	BD718XX_POWOFF_TIME_10MS,
255 	BD718XX_POWOFF_TIME_15MS,
256 	BD718XX_POWOFF_TIME_20MS,
257 	BD718XX_POWOFF_TIME_25MS,
258 	BD718XX_POWOFF_TIME_30MS,
259 	BD718XX_POWOFF_TIME_35MS,
260 	BD718XX_POWOFF_TIME_40MS,
261 	BD718XX_POWOFF_TIME_45MS,
262 	BD718XX_POWOFF_TIME_50MS,
263 	BD718XX_POWOFF_TIME_75MS,
264 	BD718XX_POWOFF_TIME_100MS,
265 	BD718XX_POWOFF_TIME_250MS,
266 	BD718XX_POWOFF_TIME_500MS,
267 	BD718XX_POWOFF_TIME_750MS,
268 	BD718XX_POWOFF_TIME_1500MS
269 };
270 
271 /* Poweron sequence state transition conditions */
272 #define BD718XX_RDY_TO_SNVS_MASK 0xF
273 #define BD718XX_SNVS_TO_RUN_MASK 0xF0
274 
275 #define BD718XX_PWR_TRIG_KEY_L		1
276 #define BD718XX_PWR_TRIG_KEY_S		2
277 #define BD718XX_PWR_TRIG_PMIC_ON	4
278 #define BD718XX_PWR_TRIG_VSYS_UVLO	8
279 #define BD718XX_RDY_TO_SNVS_SIFT	0
280 #define BD718XX_SNVS_TO_RUN_SIFT	4
281 
282 #define BD718XX_PWRBTN_PRESS_DURATION_MASK 0xF
283 
284 /* Timeout value for detecting short press */
285 enum {
286 	BD718XX_PWRBTN_SHORT_PRESS_10MS = 0,
287 	BD718XX_PWRBTN_SHORT_PRESS_500MS,
288 	BD718XX_PWRBTN_SHORT_PRESS_1000MS,
289 	BD718XX_PWRBTN_SHORT_PRESS_1500MS,
290 	BD718XX_PWRBTN_SHORT_PRESS_2000MS,
291 	BD718XX_PWRBTN_SHORT_PRESS_2500MS,
292 	BD718XX_PWRBTN_SHORT_PRESS_3000MS,
293 	BD718XX_PWRBTN_SHORT_PRESS_3500MS,
294 	BD718XX_PWRBTN_SHORT_PRESS_4000MS,
295 	BD718XX_PWRBTN_SHORT_PRESS_4500MS,
296 	BD718XX_PWRBTN_SHORT_PRESS_5000MS,
297 	BD718XX_PWRBTN_SHORT_PRESS_5500MS,
298 	BD718XX_PWRBTN_SHORT_PRESS_6000MS,
299 	BD718XX_PWRBTN_SHORT_PRESS_6500MS,
300 	BD718XX_PWRBTN_SHORT_PRESS_7000MS,
301 	BD718XX_PWRBTN_SHORT_PRESS_7500MS
302 };
303 
304 /* Timeout value for detecting LONG press */
305 enum {
306 	BD718XX_PWRBTN_LONG_PRESS_10MS = 0,
307 	BD718XX_PWRBTN_LONG_PRESS_1S,
308 	BD718XX_PWRBTN_LONG_PRESS_2S,
309 	BD718XX_PWRBTN_LONG_PRESS_3S,
310 	BD718XX_PWRBTN_LONG_PRESS_4S,
311 	BD718XX_PWRBTN_LONG_PRESS_5S,
312 	BD718XX_PWRBTN_LONG_PRESS_6S,
313 	BD718XX_PWRBTN_LONG_PRESS_7S,
314 	BD718XX_PWRBTN_LONG_PRESS_8S,
315 	BD718XX_PWRBTN_LONG_PRESS_9S,
316 	BD718XX_PWRBTN_LONG_PRESS_10S,
317 	BD718XX_PWRBTN_LONG_PRESS_11S,
318 	BD718XX_PWRBTN_LONG_PRESS_12S,
319 	BD718XX_PWRBTN_LONG_PRESS_13S,
320 	BD718XX_PWRBTN_LONG_PRESS_14S,
321 	BD718XX_PWRBTN_LONG_PRESS_15S
322 };
323 
324 struct bd718xx_clk;
325 
326 struct bd718xx {
327 	unsigned int chip_type;
328 	struct device *dev;
329 	struct regmap *regmap;
330 	unsigned long int id;
331 
332 	int chip_irq;
333 	struct regmap_irq_chip_data *irq_data;
334 
335 	struct bd718xx_clk *clk;
336 };
337 
338 #endif /* __LINUX_MFD_BD718XX_H__ */
339