Commit | Line | Data |
---|---|---|
2cd64ae3 | 1 | /* |
11375293 | 2 | * Regulator driver for Rockchip RK808/RK818 |
2cd64ae3 CZ |
3 | * |
4 | * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd | |
5 | * | |
6 | * Author: Chris Zhong <zyw@rock-chips.com> | |
7 | * Author: Zhang Qing <zhangqing@rock-chips.com> | |
8 | * | |
11375293 WE |
9 | * Copyright (C) 2016 PHYTEC Messtechnik GmbH |
10 | * | |
11 | * Author: Wadim Egorov <w.egorov@phytec.de> | |
12 | * | |
2cd64ae3 CZ |
13 | * This program is free software; you can redistribute it and/or modify it |
14 | * under the terms and conditions of the GNU General Public License, | |
15 | * version 2, as published by the Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
20 | * more details. | |
2cd64ae3 CZ |
21 | */ |
22 | ||
bad47ad2 CZ |
23 | #include <linux/delay.h> |
24 | #include <linux/gpio.h> | |
2cd64ae3 | 25 | #include <linux/i2c.h> |
bad47ad2 | 26 | #include <linux/module.h> |
2cd64ae3 | 27 | #include <linux/of_device.h> |
bad47ad2 CZ |
28 | #include <linux/of_gpio.h> |
29 | #include <linux/mfd/rk808.h> | |
2cd64ae3 CZ |
30 | #include <linux/regulator/driver.h> |
31 | #include <linux/regulator/of_regulator.h> | |
604d4994 | 32 | #include <linux/gpio/consumer.h> |
571a4010 CZ |
33 | |
34 | /* Field Definitions */ | |
2cd64ae3 CZ |
35 | #define RK808_BUCK_VSEL_MASK 0x3f |
36 | #define RK808_BUCK4_VSEL_MASK 0xf | |
37 | #define RK808_LDO_VSEL_MASK 0x1f | |
38 | ||
11375293 WE |
39 | #define RK818_BUCK_VSEL_MASK 0x3f |
40 | #define RK818_BUCK4_VSEL_MASK 0x1f | |
41 | #define RK818_LDO_VSEL_MASK 0x1f | |
42 | #define RK818_LDO3_ON_VSEL_MASK 0xf | |
43 | #define RK818_BOOST_ON_VSEL_MASK 0xe0 | |
44 | ||
8af25227 DA |
45 | /* Ramp rate definitions for buck1 / buck2 only */ |
46 | #define RK808_RAMP_RATE_OFFSET 3 | |
47 | #define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET) | |
48 | #define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET) | |
49 | #define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET) | |
50 | #define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET) | |
51 | #define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET) | |
52 | ||
bad47ad2 CZ |
53 | #define RK808_DVS2_POL BIT(2) |
54 | #define RK808_DVS1_POL BIT(1) | |
55 | ||
251ce318 CZ |
56 | /* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */ |
57 | #define RK808_SLP_REG_OFFSET 1 | |
58 | ||
bad47ad2 CZ |
59 | /* Offset from XXX_ON_VSEL to XXX_DVS_VSEL */ |
60 | #define RK808_DVS_REG_OFFSET 2 | |
61 | ||
251ce318 CZ |
62 | /* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */ |
63 | #define RK808_SLP_SET_OFF_REG_OFFSET 2 | |
64 | ||
bad47ad2 CZ |
65 | /* max steps for increase voltage of Buck1/2, equal 100mv*/ |
66 | #define MAX_STEPS_ONE_TIME 8 | |
67 | ||
9e9daa0a WE |
68 | #define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \ |
69 | _vmask, _ereg, _emask, _etime) \ | |
70 | [_id] = { \ | |
71 | .name = (_match), \ | |
72 | .supply_name = (_supply), \ | |
73 | .of_match = of_match_ptr(_match), \ | |
74 | .regulators_node = of_match_ptr("regulators"), \ | |
75 | .type = REGULATOR_VOLTAGE, \ | |
76 | .id = (_id), \ | |
77 | .n_voltages = (((_max) - (_min)) / (_step) + 1), \ | |
78 | .owner = THIS_MODULE, \ | |
79 | .min_uV = (_min) * 1000, \ | |
80 | .uV_step = (_step) * 1000, \ | |
81 | .vsel_reg = (_vreg), \ | |
82 | .vsel_mask = (_vmask), \ | |
83 | .enable_reg = (_ereg), \ | |
84 | .enable_mask = (_emask), \ | |
85 | .enable_time = (_etime), \ | |
86 | .ops = &rk808_reg_ops, \ | |
87 | } | |
88 | ||
89 | #define RK8XX_DESC_SWITCH(_id, _match, _supply, _ereg, _emask) \ | |
90 | [_id] = { \ | |
91 | .name = (_match), \ | |
92 | .supply_name = (_supply), \ | |
93 | .of_match = of_match_ptr(_match), \ | |
94 | .regulators_node = of_match_ptr("regulators"), \ | |
95 | .type = REGULATOR_VOLTAGE, \ | |
96 | .id = (_id), \ | |
97 | .enable_reg = (_ereg), \ | |
98 | .enable_mask = (_emask), \ | |
99 | .owner = THIS_MODULE, \ | |
100 | .ops = &rk808_switch_ops \ | |
101 | } | |
102 | ||
103 | ||
bad47ad2 CZ |
104 | struct rk808_regulator_data { |
105 | struct gpio_desc *dvs_gpio[2]; | |
106 | }; | |
107 | ||
8af25227 DA |
108 | static const int rk808_buck_config_regs[] = { |
109 | RK808_BUCK1_CONFIG_REG, | |
110 | RK808_BUCK2_CONFIG_REG, | |
111 | RK808_BUCK3_CONFIG_REG, | |
112 | RK808_BUCK4_CONFIG_REG, | |
113 | }; | |
114 | ||
2cd64ae3 CZ |
115 | static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = { |
116 | REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000), | |
117 | REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0), | |
118 | }; | |
119 | ||
bad47ad2 CZ |
120 | static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev) |
121 | { | |
122 | struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); | |
bf8e2762 | 123 | int id = rdev_get_id(rdev); |
bad47ad2 CZ |
124 | struct gpio_desc *gpio = pdata->dvs_gpio[id]; |
125 | unsigned int val; | |
126 | int ret; | |
127 | ||
a13eaf02 | 128 | if (!gpio || gpiod_get_value(gpio) == 0) |
bad47ad2 CZ |
129 | return regulator_get_voltage_sel_regmap(rdev); |
130 | ||
131 | ret = regmap_read(rdev->regmap, | |
132 | rdev->desc->vsel_reg + RK808_DVS_REG_OFFSET, | |
133 | &val); | |
134 | if (ret != 0) | |
135 | return ret; | |
136 | ||
137 | val &= rdev->desc->vsel_mask; | |
138 | val >>= ffs(rdev->desc->vsel_mask) - 1; | |
139 | ||
140 | return val; | |
141 | } | |
142 | ||
143 | static int rk808_buck1_2_i2c_set_voltage_sel(struct regulator_dev *rdev, | |
144 | unsigned sel) | |
145 | { | |
146 | int ret, delta_sel; | |
147 | unsigned int old_sel, tmp, val, mask = rdev->desc->vsel_mask; | |
148 | ||
149 | ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); | |
150 | if (ret != 0) | |
151 | return ret; | |
152 | ||
153 | tmp = val & ~mask; | |
154 | old_sel = val & mask; | |
155 | old_sel >>= ffs(mask) - 1; | |
156 | delta_sel = sel - old_sel; | |
157 | ||
158 | /* | |
159 | * If directly modify the register to change the voltage, we will face | |
160 | * the risk of overshoot. Put it into a multi-step, can effectively | |
161 | * avoid this problem, a step is 100mv here. | |
162 | */ | |
163 | while (delta_sel > MAX_STEPS_ONE_TIME) { | |
164 | old_sel += MAX_STEPS_ONE_TIME; | |
165 | val = old_sel << (ffs(mask) - 1); | |
166 | val |= tmp; | |
167 | ||
168 | /* | |
169 | * i2c is 400kHz (2.5us per bit) and we must transmit _at least_ | |
170 | * 3 bytes (24 bits) plus start and stop so 26 bits. So we've | |
171 | * got more than 65 us between each voltage change and thus | |
172 | * won't ramp faster than ~1500 uV / us. | |
173 | */ | |
174 | ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); | |
175 | delta_sel = sel - old_sel; | |
176 | } | |
177 | ||
178 | sel <<= ffs(mask) - 1; | |
179 | val = tmp | sel; | |
180 | ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); | |
181 | ||
182 | /* | |
183 | * When we change the voltage register directly, the ramp rate is about | |
184 | * 100000uv/us, wait 1us to make sure the target voltage to be stable, | |
185 | * so we needn't wait extra time after that. | |
186 | */ | |
187 | udelay(1); | |
188 | ||
189 | return ret; | |
190 | } | |
191 | ||
192 | static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev, | |
193 | unsigned sel) | |
194 | { | |
195 | struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); | |
bf8e2762 | 196 | int id = rdev_get_id(rdev); |
bad47ad2 CZ |
197 | struct gpio_desc *gpio = pdata->dvs_gpio[id]; |
198 | unsigned int reg = rdev->desc->vsel_reg; | |
199 | unsigned old_sel; | |
200 | int ret, gpio_level; | |
201 | ||
a13eaf02 | 202 | if (!gpio) |
bad47ad2 CZ |
203 | return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel); |
204 | ||
205 | gpio_level = gpiod_get_value(gpio); | |
206 | if (gpio_level == 0) { | |
207 | reg += RK808_DVS_REG_OFFSET; | |
208 | ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &old_sel); | |
209 | } else { | |
210 | ret = regmap_read(rdev->regmap, | |
211 | reg + RK808_DVS_REG_OFFSET, | |
212 | &old_sel); | |
213 | } | |
214 | ||
215 | if (ret != 0) | |
216 | return ret; | |
217 | ||
218 | sel <<= ffs(rdev->desc->vsel_mask) - 1; | |
219 | sel |= old_sel & ~rdev->desc->vsel_mask; | |
220 | ||
221 | ret = regmap_write(rdev->regmap, reg, sel); | |
222 | if (ret) | |
223 | return ret; | |
224 | ||
225 | gpiod_set_value(gpio, !gpio_level); | |
226 | ||
227 | return ret; | |
228 | } | |
229 | ||
230 | static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev, | |
231 | unsigned int old_selector, | |
232 | unsigned int new_selector) | |
233 | { | |
234 | struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); | |
bf8e2762 | 235 | int id = rdev_get_id(rdev); |
bad47ad2 CZ |
236 | struct gpio_desc *gpio = pdata->dvs_gpio[id]; |
237 | ||
238 | /* if there is no dvs1/2 pin, we don't need wait extra time here. */ | |
a13eaf02 | 239 | if (!gpio) |
bad47ad2 CZ |
240 | return 0; |
241 | ||
242 | return regulator_set_voltage_time_sel(rdev, old_selector, new_selector); | |
243 | } | |
244 | ||
8af25227 DA |
245 | static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) |
246 | { | |
247 | unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US; | |
bf8e2762 | 248 | unsigned int reg = rk808_buck_config_regs[rdev_get_id(rdev)]; |
8af25227 DA |
249 | |
250 | switch (ramp_delay) { | |
251 | case 1 ... 2000: | |
252 | ramp_value = RK808_RAMP_RATE_2MV_PER_US; | |
253 | break; | |
254 | case 2001 ... 4000: | |
255 | ramp_value = RK808_RAMP_RATE_4MV_PER_US; | |
256 | break; | |
257 | case 4001 ... 6000: | |
258 | ramp_value = RK808_RAMP_RATE_6MV_PER_US; | |
259 | break; | |
260 | case 6001 ... 10000: | |
261 | break; | |
262 | default: | |
263 | pr_warn("%s ramp_delay: %d not supported, setting 10000\n", | |
264 | rdev->desc->name, ramp_delay); | |
265 | } | |
266 | ||
267 | return regmap_update_bits(rdev->regmap, reg, | |
268 | RK808_RAMP_RATE_MASK, ramp_value); | |
269 | } | |
270 | ||
5cb2f03c | 271 | static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv) |
afcd666d WE |
272 | { |
273 | unsigned int reg; | |
274 | int sel = regulator_map_voltage_linear(rdev, uv, uv); | |
275 | ||
276 | if (sel < 0) | |
277 | return -EINVAL; | |
278 | ||
279 | reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; | |
280 | ||
281 | return regmap_update_bits(rdev->regmap, reg, | |
282 | rdev->desc->vsel_mask, | |
283 | sel); | |
284 | } | |
285 | ||
129d7cf9 WE |
286 | static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv) |
287 | { | |
288 | unsigned int reg; | |
289 | int sel = regulator_map_voltage_linear_range(rdev, uv, uv); | |
290 | ||
291 | if (sel < 0) | |
292 | return -EINVAL; | |
293 | ||
294 | reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; | |
295 | ||
296 | return regmap_update_bits(rdev->regmap, reg, | |
297 | rdev->desc->vsel_mask, | |
298 | sel); | |
299 | } | |
300 | ||
5cb2f03c | 301 | static int rk808_set_suspend_enable(struct regulator_dev *rdev) |
251ce318 CZ |
302 | { |
303 | unsigned int reg; | |
304 | ||
305 | reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; | |
306 | ||
307 | return regmap_update_bits(rdev->regmap, reg, | |
308 | rdev->desc->enable_mask, | |
309 | 0); | |
310 | } | |
311 | ||
5cb2f03c | 312 | static int rk808_set_suspend_disable(struct regulator_dev *rdev) |
251ce318 CZ |
313 | { |
314 | unsigned int reg; | |
315 | ||
316 | reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; | |
317 | ||
318 | return regmap_update_bits(rdev->regmap, reg, | |
319 | rdev->desc->enable_mask, | |
320 | rdev->desc->enable_mask); | |
321 | } | |
322 | ||
8af25227 | 323 | static struct regulator_ops rk808_buck1_2_ops = { |
afcd666d WE |
324 | .list_voltage = regulator_list_voltage_linear, |
325 | .map_voltage = regulator_map_voltage_linear, | |
bad47ad2 CZ |
326 | .get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap, |
327 | .set_voltage_sel = rk808_buck1_2_set_voltage_sel, | |
328 | .set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel, | |
8af25227 DA |
329 | .enable = regulator_enable_regmap, |
330 | .disable = regulator_disable_regmap, | |
331 | .is_enabled = regulator_is_enabled_regmap, | |
332 | .set_ramp_delay = rk808_set_ramp_delay, | |
251ce318 CZ |
333 | .set_suspend_voltage = rk808_set_suspend_voltage, |
334 | .set_suspend_enable = rk808_set_suspend_enable, | |
335 | .set_suspend_disable = rk808_set_suspend_disable, | |
8af25227 DA |
336 | }; |
337 | ||
2cd64ae3 | 338 | static struct regulator_ops rk808_reg_ops = { |
afcd666d WE |
339 | .list_voltage = regulator_list_voltage_linear, |
340 | .map_voltage = regulator_map_voltage_linear, | |
341 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
342 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
343 | .enable = regulator_enable_regmap, | |
344 | .disable = regulator_disable_regmap, | |
345 | .is_enabled = regulator_is_enabled_regmap, | |
346 | .set_suspend_voltage = rk808_set_suspend_voltage, | |
347 | .set_suspend_enable = rk808_set_suspend_enable, | |
348 | .set_suspend_disable = rk808_set_suspend_disable, | |
349 | }; | |
350 | ||
129d7cf9 WE |
351 | static struct regulator_ops rk808_reg_ops_ranges = { |
352 | .list_voltage = regulator_list_voltage_linear_range, | |
353 | .map_voltage = regulator_map_voltage_linear_range, | |
354 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
355 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
356 | .enable = regulator_enable_regmap, | |
357 | .disable = regulator_disable_regmap, | |
358 | .is_enabled = regulator_is_enabled_regmap, | |
359 | .set_suspend_voltage = rk808_set_suspend_voltage_range, | |
360 | .set_suspend_enable = rk808_set_suspend_enable, | |
361 | .set_suspend_disable = rk808_set_suspend_disable, | |
362 | }; | |
363 | ||
2cd64ae3 | 364 | static struct regulator_ops rk808_switch_ops = { |
251ce318 CZ |
365 | .enable = regulator_enable_regmap, |
366 | .disable = regulator_disable_regmap, | |
367 | .is_enabled = regulator_is_enabled_regmap, | |
368 | .set_suspend_enable = rk808_set_suspend_enable, | |
369 | .set_suspend_disable = rk808_set_suspend_disable, | |
2cd64ae3 CZ |
370 | }; |
371 | ||
372 | static const struct regulator_desc rk808_reg[] = { | |
373 | { | |
374 | .name = "DCDC_REG1", | |
b8074eba | 375 | .supply_name = "vcc1", |
9e9daa0a WE |
376 | .of_match = of_match_ptr("DCDC_REG1"), |
377 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 | 378 | .id = RK808_ID_DCDC1, |
8af25227 | 379 | .ops = &rk808_buck1_2_ops, |
2cd64ae3 | 380 | .type = REGULATOR_VOLTAGE, |
afcd666d WE |
381 | .min_uV = 712500, |
382 | .uV_step = 12500, | |
2cd64ae3 | 383 | .n_voltages = 64, |
2cd64ae3 CZ |
384 | .vsel_reg = RK808_BUCK1_ON_VSEL_REG, |
385 | .vsel_mask = RK808_BUCK_VSEL_MASK, | |
386 | .enable_reg = RK808_DCDC_EN_REG, | |
387 | .enable_mask = BIT(0), | |
388 | .owner = THIS_MODULE, | |
389 | }, { | |
390 | .name = "DCDC_REG2", | |
b8074eba | 391 | .supply_name = "vcc2", |
9e9daa0a WE |
392 | .of_match = of_match_ptr("DCDC_REG2"), |
393 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 | 394 | .id = RK808_ID_DCDC2, |
8af25227 | 395 | .ops = &rk808_buck1_2_ops, |
2cd64ae3 | 396 | .type = REGULATOR_VOLTAGE, |
afcd666d WE |
397 | .min_uV = 712500, |
398 | .uV_step = 12500, | |
2cd64ae3 | 399 | .n_voltages = 64, |
2cd64ae3 CZ |
400 | .vsel_reg = RK808_BUCK2_ON_VSEL_REG, |
401 | .vsel_mask = RK808_BUCK_VSEL_MASK, | |
402 | .enable_reg = RK808_DCDC_EN_REG, | |
403 | .enable_mask = BIT(1), | |
404 | .owner = THIS_MODULE, | |
405 | }, { | |
406 | .name = "DCDC_REG3", | |
b8074eba | 407 | .supply_name = "vcc3", |
9e9daa0a WE |
408 | .of_match = of_match_ptr("DCDC_REG3"), |
409 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 CZ |
410 | .id = RK808_ID_DCDC3, |
411 | .ops = &rk808_switch_ops, | |
412 | .type = REGULATOR_VOLTAGE, | |
413 | .n_voltages = 1, | |
414 | .enable_reg = RK808_DCDC_EN_REG, | |
415 | .enable_mask = BIT(2), | |
416 | .owner = THIS_MODULE, | |
9e9daa0a WE |
417 | }, |
418 | RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100, | |
419 | RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK, | |
420 | RK808_DCDC_EN_REG, BIT(3), 0), | |
421 | RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, | |
422 | RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
423 | BIT(0), 400), | |
424 | RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, | |
425 | RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
426 | BIT(1), 400), | |
427 | { | |
2cd64ae3 | 428 | .name = "LDO_REG3", |
b8074eba | 429 | .supply_name = "vcc7", |
9e9daa0a WE |
430 | .of_match = of_match_ptr("LDO_REG3"), |
431 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 | 432 | .id = RK808_ID_LDO3, |
129d7cf9 | 433 | .ops = &rk808_reg_ops_ranges, |
2cd64ae3 CZ |
434 | .type = REGULATOR_VOLTAGE, |
435 | .n_voltages = 16, | |
436 | .linear_ranges = rk808_ldo3_voltage_ranges, | |
437 | .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), | |
438 | .vsel_reg = RK808_LDO3_ON_VSEL_REG, | |
439 | .vsel_mask = RK808_BUCK4_VSEL_MASK, | |
440 | .enable_reg = RK808_LDO_EN_REG, | |
441 | .enable_mask = BIT(2), | |
28249b0c | 442 | .enable_time = 400, |
2cd64ae3 | 443 | .owner = THIS_MODULE, |
2cd64ae3 | 444 | }, |
9e9daa0a WE |
445 | RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100, |
446 | RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
447 | BIT(3), 400), | |
448 | RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100, | |
449 | RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
450 | BIT(4), 400), | |
451 | RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100, | |
452 | RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
453 | BIT(5), 400), | |
454 | RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, | |
455 | RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
456 | BIT(6), 400), | |
457 | RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100, | |
458 | RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
459 | BIT(7), 400), | |
460 | RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8", | |
461 | RK808_DCDC_EN_REG, BIT(5)), | |
462 | RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12", | |
463 | RK808_DCDC_EN_REG, BIT(6)), | |
2cd64ae3 CZ |
464 | }; |
465 | ||
11375293 WE |
466 | static const struct regulator_desc rk818_reg[] = { |
467 | { | |
468 | .name = "DCDC_REG1", | |
469 | .supply_name = "vcc1", | |
470 | .of_match = of_match_ptr("DCDC_REG1"), | |
471 | .regulators_node = of_match_ptr("regulators"), | |
472 | .id = RK818_ID_DCDC1, | |
473 | .ops = &rk808_reg_ops, | |
474 | .type = REGULATOR_VOLTAGE, | |
475 | .min_uV = 712500, | |
476 | .uV_step = 12500, | |
477 | .n_voltages = 64, | |
478 | .vsel_reg = RK818_BUCK1_ON_VSEL_REG, | |
479 | .vsel_mask = RK818_BUCK_VSEL_MASK, | |
480 | .enable_reg = RK818_DCDC_EN_REG, | |
481 | .enable_mask = BIT(0), | |
482 | .owner = THIS_MODULE, | |
483 | }, { | |
484 | .name = "DCDC_REG2", | |
485 | .supply_name = "vcc2", | |
486 | .of_match = of_match_ptr("DCDC_REG2"), | |
487 | .regulators_node = of_match_ptr("regulators"), | |
488 | .id = RK818_ID_DCDC2, | |
489 | .ops = &rk808_reg_ops, | |
490 | .type = REGULATOR_VOLTAGE, | |
491 | .min_uV = 712500, | |
492 | .uV_step = 12500, | |
493 | .n_voltages = 64, | |
494 | .vsel_reg = RK818_BUCK2_ON_VSEL_REG, | |
495 | .vsel_mask = RK818_BUCK_VSEL_MASK, | |
496 | .enable_reg = RK818_DCDC_EN_REG, | |
497 | .enable_mask = BIT(1), | |
498 | .owner = THIS_MODULE, | |
499 | }, { | |
500 | .name = "DCDC_REG3", | |
501 | .supply_name = "vcc3", | |
502 | .of_match = of_match_ptr("DCDC_REG3"), | |
503 | .regulators_node = of_match_ptr("regulators"), | |
504 | .id = RK818_ID_DCDC3, | |
505 | .ops = &rk808_switch_ops, | |
506 | .type = REGULATOR_VOLTAGE, | |
507 | .n_voltages = 1, | |
508 | .enable_reg = RK818_DCDC_EN_REG, | |
509 | .enable_mask = BIT(2), | |
510 | .owner = THIS_MODULE, | |
511 | }, | |
512 | RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100, | |
513 | RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK, | |
514 | RK818_DCDC_EN_REG, BIT(3), 0), | |
515 | RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100, | |
516 | RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK, | |
517 | RK818_DCDC_EN_REG, BIT(4), 0), | |
518 | RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, | |
519 | RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
520 | BIT(0), 400), | |
521 | RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, | |
75f88115 | 522 | RK818_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, |
11375293 WE |
523 | BIT(1), 400), |
524 | { | |
525 | .name = "LDO_REG3", | |
526 | .supply_name = "vcc7", | |
527 | .of_match = of_match_ptr("LDO_REG3"), | |
528 | .regulators_node = of_match_ptr("regulators"), | |
529 | .id = RK818_ID_LDO3, | |
530 | .ops = &rk808_reg_ops_ranges, | |
531 | .type = REGULATOR_VOLTAGE, | |
532 | .n_voltages = 16, | |
533 | .linear_ranges = rk808_ldo3_voltage_ranges, | |
534 | .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), | |
535 | .vsel_reg = RK818_LDO3_ON_VSEL_REG, | |
536 | .vsel_mask = RK818_LDO3_ON_VSEL_MASK, | |
537 | .enable_reg = RK818_LDO_EN_REG, | |
538 | .enable_mask = BIT(2), | |
539 | .enable_time = 400, | |
540 | .owner = THIS_MODULE, | |
541 | }, | |
542 | RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100, | |
543 | RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
544 | BIT(3), 400), | |
545 | RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100, | |
546 | RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
547 | BIT(4), 400), | |
548 | RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100, | |
549 | RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
550 | BIT(5), 400), | |
551 | RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, | |
552 | RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
553 | BIT(6), 400), | |
554 | RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100, | |
555 | RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
556 | BIT(7), 400), | |
557 | RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100, | |
558 | RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK, | |
559 | RK818_DCDC_EN_REG, BIT(5), 400), | |
560 | RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9", | |
561 | RK818_DCDC_EN_REG, BIT(6)), | |
562 | RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v", | |
563 | RK818_H5V_EN_REG, BIT(0)), | |
564 | RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb", | |
565 | RK818_DCDC_EN_REG, BIT(7)), | |
566 | }; | |
567 | ||
bad47ad2 CZ |
568 | static int rk808_regulator_dt_parse_pdata(struct device *dev, |
569 | struct device *client_dev, | |
570 | struct regmap *map, | |
571 | struct rk808_regulator_data *pdata) | |
572 | { | |
573 | struct device_node *np; | |
9e9daa0a | 574 | int tmp, ret = 0, i; |
bad47ad2 CZ |
575 | |
576 | np = of_get_child_by_name(client_dev->of_node, "regulators"); | |
577 | if (!np) | |
578 | return -ENXIO; | |
579 | ||
bad47ad2 | 580 | for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { |
a13eaf02 UKK |
581 | pdata->dvs_gpio[i] = |
582 | devm_gpiod_get_index_optional(client_dev, "dvs", i, | |
583 | GPIOD_OUT_LOW); | |
bad47ad2 | 584 | if (IS_ERR(pdata->dvs_gpio[i])) { |
a13eaf02 UKK |
585 | ret = PTR_ERR(pdata->dvs_gpio[i]); |
586 | dev_err(dev, "failed to get dvs%d gpio (%d)\n", i, ret); | |
587 | goto dt_parse_end; | |
588 | } | |
589 | ||
590 | if (!pdata->dvs_gpio[i]) { | |
bad47ad2 CZ |
591 | dev_warn(dev, "there is no dvs%d gpio\n", i); |
592 | continue; | |
593 | } | |
594 | ||
bad47ad2 CZ |
595 | tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL; |
596 | ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp, | |
597 | gpiod_is_active_low(pdata->dvs_gpio[i]) ? | |
598 | 0 : tmp); | |
599 | } | |
600 | ||
601 | dt_parse_end: | |
602 | of_node_put(np); | |
603 | return ret; | |
604 | } | |
605 | ||
2cd64ae3 CZ |
606 | static int rk808_regulator_probe(struct platform_device *pdev) |
607 | { | |
608 | struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); | |
d76c333e | 609 | struct i2c_client *client = rk808->i2c; |
462004f1 | 610 | struct regulator_config config = {}; |
2cd64ae3 | 611 | struct regulator_dev *rk808_rdev; |
bad47ad2 | 612 | struct rk808_regulator_data *pdata; |
11375293 WE |
613 | const struct regulator_desc *regulators; |
614 | int ret, i, nregulators; | |
2cd64ae3 | 615 | |
bad47ad2 CZ |
616 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
617 | if (!pdata) | |
618 | return -ENOMEM; | |
2cd64ae3 | 619 | |
bad47ad2 CZ |
620 | ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev, |
621 | rk808->regmap, pdata); | |
571a4010 | 622 | if (ret < 0) |
2cd64ae3 CZ |
623 | return ret; |
624 | ||
bad47ad2 CZ |
625 | platform_set_drvdata(pdev, pdata); |
626 | ||
11375293 WE |
627 | switch (rk808->variant) { |
628 | case RK808_ID: | |
629 | regulators = rk808_reg; | |
630 | nregulators = RK808_NUM_REGULATORS; | |
631 | break; | |
632 | case RK818_ID: | |
633 | regulators = rk818_reg; | |
634 | nregulators = RK818_NUM_REGULATORS; | |
635 | break; | |
636 | default: | |
637 | dev_err(&client->dev, "unsupported RK8XX ID %lu\n", | |
638 | rk808->variant); | |
639 | return -EINVAL; | |
640 | } | |
641 | ||
9e9daa0a WE |
642 | config.dev = &client->dev; |
643 | config.driver_data = pdata; | |
644 | config.regmap = rk808->regmap; | |
645 | ||
2cd64ae3 | 646 | /* Instantiate the regulators */ |
11375293 | 647 | for (i = 0; i < nregulators; i++) { |
2cd64ae3 | 648 | rk808_rdev = devm_regulator_register(&pdev->dev, |
11375293 | 649 | ®ulators[i], &config); |
2cd64ae3 | 650 | if (IS_ERR(rk808_rdev)) { |
d76c333e | 651 | dev_err(&client->dev, |
2cd64ae3 CZ |
652 | "failed to register %d regulator\n", i); |
653 | return PTR_ERR(rk808_rdev); | |
654 | } | |
2cd64ae3 | 655 | } |
571a4010 | 656 | |
2cd64ae3 CZ |
657 | return 0; |
658 | } | |
659 | ||
660 | static struct platform_driver rk808_regulator_driver = { | |
661 | .probe = rk808_regulator_probe, | |
662 | .driver = { | |
556ae220 | 663 | .name = "rk808-regulator" |
2cd64ae3 CZ |
664 | }, |
665 | }; | |
666 | ||
667 | module_platform_driver(rk808_regulator_driver); | |
668 | ||
11375293 WE |
669 | MODULE_DESCRIPTION("regulator driver for the RK808/RK818 series PMICs"); |
670 | MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); | |
671 | MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>"); | |
672 | MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>"); | |
2cd64ae3 CZ |
673 | MODULE_LICENSE("GPL"); |
674 | MODULE_ALIAS("platform:rk808-regulator"); |