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); | |
123 | int id = rdev->desc->id - RK808_ID_DCDC1; | |
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); | |
196 | int id = rdev->desc->id - RK808_ID_DCDC1; | |
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); | |
235 | int id = rdev->desc->id - RK808_ID_DCDC1; | |
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; | |
248 | unsigned int reg = rk808_buck_config_regs[rdev->desc->id - | |
249 | RK808_ID_DCDC1]; | |
250 | ||
251 | switch (ramp_delay) { | |
252 | case 1 ... 2000: | |
253 | ramp_value = RK808_RAMP_RATE_2MV_PER_US; | |
254 | break; | |
255 | case 2001 ... 4000: | |
256 | ramp_value = RK808_RAMP_RATE_4MV_PER_US; | |
257 | break; | |
258 | case 4001 ... 6000: | |
259 | ramp_value = RK808_RAMP_RATE_6MV_PER_US; | |
260 | break; | |
261 | case 6001 ... 10000: | |
262 | break; | |
263 | default: | |
264 | pr_warn("%s ramp_delay: %d not supported, setting 10000\n", | |
265 | rdev->desc->name, ramp_delay); | |
266 | } | |
267 | ||
268 | return regmap_update_bits(rdev->regmap, reg, | |
269 | RK808_RAMP_RATE_MASK, ramp_value); | |
270 | } | |
271 | ||
5cb2f03c | 272 | static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv) |
afcd666d WE |
273 | { |
274 | unsigned int reg; | |
275 | int sel = regulator_map_voltage_linear(rdev, uv, uv); | |
276 | ||
277 | if (sel < 0) | |
278 | return -EINVAL; | |
279 | ||
280 | reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; | |
281 | ||
282 | return regmap_update_bits(rdev->regmap, reg, | |
283 | rdev->desc->vsel_mask, | |
284 | sel); | |
285 | } | |
286 | ||
129d7cf9 WE |
287 | static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv) |
288 | { | |
289 | unsigned int reg; | |
290 | int sel = regulator_map_voltage_linear_range(rdev, uv, uv); | |
291 | ||
292 | if (sel < 0) | |
293 | return -EINVAL; | |
294 | ||
295 | reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; | |
296 | ||
297 | return regmap_update_bits(rdev->regmap, reg, | |
298 | rdev->desc->vsel_mask, | |
299 | sel); | |
300 | } | |
301 | ||
5cb2f03c | 302 | static int rk808_set_suspend_enable(struct regulator_dev *rdev) |
251ce318 CZ |
303 | { |
304 | unsigned int reg; | |
305 | ||
306 | reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; | |
307 | ||
308 | return regmap_update_bits(rdev->regmap, reg, | |
309 | rdev->desc->enable_mask, | |
310 | 0); | |
311 | } | |
312 | ||
5cb2f03c | 313 | static int rk808_set_suspend_disable(struct regulator_dev *rdev) |
251ce318 CZ |
314 | { |
315 | unsigned int reg; | |
316 | ||
317 | reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; | |
318 | ||
319 | return regmap_update_bits(rdev->regmap, reg, | |
320 | rdev->desc->enable_mask, | |
321 | rdev->desc->enable_mask); | |
322 | } | |
323 | ||
8af25227 | 324 | static struct regulator_ops rk808_buck1_2_ops = { |
afcd666d WE |
325 | .list_voltage = regulator_list_voltage_linear, |
326 | .map_voltage = regulator_map_voltage_linear, | |
bad47ad2 CZ |
327 | .get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap, |
328 | .set_voltage_sel = rk808_buck1_2_set_voltage_sel, | |
329 | .set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel, | |
8af25227 DA |
330 | .enable = regulator_enable_regmap, |
331 | .disable = regulator_disable_regmap, | |
332 | .is_enabled = regulator_is_enabled_regmap, | |
333 | .set_ramp_delay = rk808_set_ramp_delay, | |
251ce318 CZ |
334 | .set_suspend_voltage = rk808_set_suspend_voltage, |
335 | .set_suspend_enable = rk808_set_suspend_enable, | |
336 | .set_suspend_disable = rk808_set_suspend_disable, | |
8af25227 DA |
337 | }; |
338 | ||
2cd64ae3 | 339 | static struct regulator_ops rk808_reg_ops = { |
afcd666d WE |
340 | .list_voltage = regulator_list_voltage_linear, |
341 | .map_voltage = regulator_map_voltage_linear, | |
342 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
343 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
344 | .enable = regulator_enable_regmap, | |
345 | .disable = regulator_disable_regmap, | |
346 | .is_enabled = regulator_is_enabled_regmap, | |
347 | .set_suspend_voltage = rk808_set_suspend_voltage, | |
348 | .set_suspend_enable = rk808_set_suspend_enable, | |
349 | .set_suspend_disable = rk808_set_suspend_disable, | |
350 | }; | |
351 | ||
129d7cf9 WE |
352 | static struct regulator_ops rk808_reg_ops_ranges = { |
353 | .list_voltage = regulator_list_voltage_linear_range, | |
354 | .map_voltage = regulator_map_voltage_linear_range, | |
355 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
356 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
357 | .enable = regulator_enable_regmap, | |
358 | .disable = regulator_disable_regmap, | |
359 | .is_enabled = regulator_is_enabled_regmap, | |
360 | .set_suspend_voltage = rk808_set_suspend_voltage_range, | |
361 | .set_suspend_enable = rk808_set_suspend_enable, | |
362 | .set_suspend_disable = rk808_set_suspend_disable, | |
363 | }; | |
364 | ||
2cd64ae3 | 365 | static struct regulator_ops rk808_switch_ops = { |
251ce318 CZ |
366 | .enable = regulator_enable_regmap, |
367 | .disable = regulator_disable_regmap, | |
368 | .is_enabled = regulator_is_enabled_regmap, | |
369 | .set_suspend_enable = rk808_set_suspend_enable, | |
370 | .set_suspend_disable = rk808_set_suspend_disable, | |
2cd64ae3 CZ |
371 | }; |
372 | ||
373 | static const struct regulator_desc rk808_reg[] = { | |
374 | { | |
375 | .name = "DCDC_REG1", | |
b8074eba | 376 | .supply_name = "vcc1", |
9e9daa0a WE |
377 | .of_match = of_match_ptr("DCDC_REG1"), |
378 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 | 379 | .id = RK808_ID_DCDC1, |
8af25227 | 380 | .ops = &rk808_buck1_2_ops, |
2cd64ae3 | 381 | .type = REGULATOR_VOLTAGE, |
afcd666d WE |
382 | .min_uV = 712500, |
383 | .uV_step = 12500, | |
2cd64ae3 | 384 | .n_voltages = 64, |
2cd64ae3 CZ |
385 | .vsel_reg = RK808_BUCK1_ON_VSEL_REG, |
386 | .vsel_mask = RK808_BUCK_VSEL_MASK, | |
387 | .enable_reg = RK808_DCDC_EN_REG, | |
388 | .enable_mask = BIT(0), | |
389 | .owner = THIS_MODULE, | |
390 | }, { | |
391 | .name = "DCDC_REG2", | |
b8074eba | 392 | .supply_name = "vcc2", |
9e9daa0a WE |
393 | .of_match = of_match_ptr("DCDC_REG2"), |
394 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 | 395 | .id = RK808_ID_DCDC2, |
8af25227 | 396 | .ops = &rk808_buck1_2_ops, |
2cd64ae3 | 397 | .type = REGULATOR_VOLTAGE, |
afcd666d WE |
398 | .min_uV = 712500, |
399 | .uV_step = 12500, | |
2cd64ae3 | 400 | .n_voltages = 64, |
2cd64ae3 CZ |
401 | .vsel_reg = RK808_BUCK2_ON_VSEL_REG, |
402 | .vsel_mask = RK808_BUCK_VSEL_MASK, | |
403 | .enable_reg = RK808_DCDC_EN_REG, | |
404 | .enable_mask = BIT(1), | |
405 | .owner = THIS_MODULE, | |
406 | }, { | |
407 | .name = "DCDC_REG3", | |
b8074eba | 408 | .supply_name = "vcc3", |
9e9daa0a WE |
409 | .of_match = of_match_ptr("DCDC_REG3"), |
410 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 CZ |
411 | .id = RK808_ID_DCDC3, |
412 | .ops = &rk808_switch_ops, | |
413 | .type = REGULATOR_VOLTAGE, | |
414 | .n_voltages = 1, | |
415 | .enable_reg = RK808_DCDC_EN_REG, | |
416 | .enable_mask = BIT(2), | |
417 | .owner = THIS_MODULE, | |
9e9daa0a WE |
418 | }, |
419 | RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100, | |
420 | RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK, | |
421 | RK808_DCDC_EN_REG, BIT(3), 0), | |
422 | RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, | |
423 | RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
424 | BIT(0), 400), | |
425 | RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, | |
426 | RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
427 | BIT(1), 400), | |
428 | { | |
2cd64ae3 | 429 | .name = "LDO_REG3", |
b8074eba | 430 | .supply_name = "vcc7", |
9e9daa0a WE |
431 | .of_match = of_match_ptr("LDO_REG3"), |
432 | .regulators_node = of_match_ptr("regulators"), | |
2cd64ae3 | 433 | .id = RK808_ID_LDO3, |
129d7cf9 | 434 | .ops = &rk808_reg_ops_ranges, |
2cd64ae3 CZ |
435 | .type = REGULATOR_VOLTAGE, |
436 | .n_voltages = 16, | |
437 | .linear_ranges = rk808_ldo3_voltage_ranges, | |
438 | .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), | |
439 | .vsel_reg = RK808_LDO3_ON_VSEL_REG, | |
440 | .vsel_mask = RK808_BUCK4_VSEL_MASK, | |
441 | .enable_reg = RK808_LDO_EN_REG, | |
442 | .enable_mask = BIT(2), | |
28249b0c | 443 | .enable_time = 400, |
2cd64ae3 | 444 | .owner = THIS_MODULE, |
2cd64ae3 | 445 | }, |
9e9daa0a WE |
446 | RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100, |
447 | RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
448 | BIT(3), 400), | |
449 | RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100, | |
450 | RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
451 | BIT(4), 400), | |
452 | RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100, | |
453 | RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
454 | BIT(5), 400), | |
455 | RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, | |
456 | RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
457 | BIT(6), 400), | |
458 | RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100, | |
459 | RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, | |
460 | BIT(7), 400), | |
461 | RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8", | |
462 | RK808_DCDC_EN_REG, BIT(5)), | |
463 | RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12", | |
464 | RK808_DCDC_EN_REG, BIT(6)), | |
2cd64ae3 CZ |
465 | }; |
466 | ||
11375293 WE |
467 | static const struct regulator_desc rk818_reg[] = { |
468 | { | |
469 | .name = "DCDC_REG1", | |
470 | .supply_name = "vcc1", | |
471 | .of_match = of_match_ptr("DCDC_REG1"), | |
472 | .regulators_node = of_match_ptr("regulators"), | |
473 | .id = RK818_ID_DCDC1, | |
474 | .ops = &rk808_reg_ops, | |
475 | .type = REGULATOR_VOLTAGE, | |
476 | .min_uV = 712500, | |
477 | .uV_step = 12500, | |
478 | .n_voltages = 64, | |
479 | .vsel_reg = RK818_BUCK1_ON_VSEL_REG, | |
480 | .vsel_mask = RK818_BUCK_VSEL_MASK, | |
481 | .enable_reg = RK818_DCDC_EN_REG, | |
482 | .enable_mask = BIT(0), | |
483 | .owner = THIS_MODULE, | |
484 | }, { | |
485 | .name = "DCDC_REG2", | |
486 | .supply_name = "vcc2", | |
487 | .of_match = of_match_ptr("DCDC_REG2"), | |
488 | .regulators_node = of_match_ptr("regulators"), | |
489 | .id = RK818_ID_DCDC2, | |
490 | .ops = &rk808_reg_ops, | |
491 | .type = REGULATOR_VOLTAGE, | |
492 | .min_uV = 712500, | |
493 | .uV_step = 12500, | |
494 | .n_voltages = 64, | |
495 | .vsel_reg = RK818_BUCK2_ON_VSEL_REG, | |
496 | .vsel_mask = RK818_BUCK_VSEL_MASK, | |
497 | .enable_reg = RK818_DCDC_EN_REG, | |
498 | .enable_mask = BIT(1), | |
499 | .owner = THIS_MODULE, | |
500 | }, { | |
501 | .name = "DCDC_REG3", | |
502 | .supply_name = "vcc3", | |
503 | .of_match = of_match_ptr("DCDC_REG3"), | |
504 | .regulators_node = of_match_ptr("regulators"), | |
505 | .id = RK818_ID_DCDC3, | |
506 | .ops = &rk808_switch_ops, | |
507 | .type = REGULATOR_VOLTAGE, | |
508 | .n_voltages = 1, | |
509 | .enable_reg = RK818_DCDC_EN_REG, | |
510 | .enable_mask = BIT(2), | |
511 | .owner = THIS_MODULE, | |
512 | }, | |
513 | RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100, | |
514 | RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK, | |
515 | RK818_DCDC_EN_REG, BIT(3), 0), | |
516 | RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100, | |
517 | RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK, | |
518 | RK818_DCDC_EN_REG, BIT(4), 0), | |
519 | RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, | |
520 | RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
521 | BIT(0), 400), | |
522 | RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, | |
523 | RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
524 | BIT(1), 400), | |
525 | { | |
526 | .name = "LDO_REG3", | |
527 | .supply_name = "vcc7", | |
528 | .of_match = of_match_ptr("LDO_REG3"), | |
529 | .regulators_node = of_match_ptr("regulators"), | |
530 | .id = RK818_ID_LDO3, | |
531 | .ops = &rk808_reg_ops_ranges, | |
532 | .type = REGULATOR_VOLTAGE, | |
533 | .n_voltages = 16, | |
534 | .linear_ranges = rk808_ldo3_voltage_ranges, | |
535 | .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), | |
536 | .vsel_reg = RK818_LDO3_ON_VSEL_REG, | |
537 | .vsel_mask = RK818_LDO3_ON_VSEL_MASK, | |
538 | .enable_reg = RK818_LDO_EN_REG, | |
539 | .enable_mask = BIT(2), | |
540 | .enable_time = 400, | |
541 | .owner = THIS_MODULE, | |
542 | }, | |
543 | RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100, | |
544 | RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
545 | BIT(3), 400), | |
546 | RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100, | |
547 | RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
548 | BIT(4), 400), | |
549 | RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100, | |
550 | RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
551 | BIT(5), 400), | |
552 | RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, | |
553 | RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
554 | BIT(6), 400), | |
555 | RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100, | |
556 | RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, | |
557 | BIT(7), 400), | |
558 | RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100, | |
559 | RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK, | |
560 | RK818_DCDC_EN_REG, BIT(5), 400), | |
561 | RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9", | |
562 | RK818_DCDC_EN_REG, BIT(6)), | |
563 | RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v", | |
564 | RK818_H5V_EN_REG, BIT(0)), | |
565 | RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb", | |
566 | RK818_DCDC_EN_REG, BIT(7)), | |
567 | }; | |
568 | ||
bad47ad2 CZ |
569 | static int rk808_regulator_dt_parse_pdata(struct device *dev, |
570 | struct device *client_dev, | |
571 | struct regmap *map, | |
572 | struct rk808_regulator_data *pdata) | |
573 | { | |
574 | struct device_node *np; | |
9e9daa0a | 575 | int tmp, ret = 0, i; |
bad47ad2 CZ |
576 | |
577 | np = of_get_child_by_name(client_dev->of_node, "regulators"); | |
578 | if (!np) | |
579 | return -ENXIO; | |
580 | ||
bad47ad2 | 581 | for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { |
a13eaf02 UKK |
582 | pdata->dvs_gpio[i] = |
583 | devm_gpiod_get_index_optional(client_dev, "dvs", i, | |
584 | GPIOD_OUT_LOW); | |
bad47ad2 | 585 | if (IS_ERR(pdata->dvs_gpio[i])) { |
a13eaf02 UKK |
586 | ret = PTR_ERR(pdata->dvs_gpio[i]); |
587 | dev_err(dev, "failed to get dvs%d gpio (%d)\n", i, ret); | |
588 | goto dt_parse_end; | |
589 | } | |
590 | ||
591 | if (!pdata->dvs_gpio[i]) { | |
bad47ad2 CZ |
592 | dev_warn(dev, "there is no dvs%d gpio\n", i); |
593 | continue; | |
594 | } | |
595 | ||
bad47ad2 CZ |
596 | tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL; |
597 | ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp, | |
598 | gpiod_is_active_low(pdata->dvs_gpio[i]) ? | |
599 | 0 : tmp); | |
600 | } | |
601 | ||
602 | dt_parse_end: | |
603 | of_node_put(np); | |
604 | return ret; | |
605 | } | |
606 | ||
2cd64ae3 CZ |
607 | static int rk808_regulator_probe(struct platform_device *pdev) |
608 | { | |
609 | struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); | |
d76c333e | 610 | struct i2c_client *client = rk808->i2c; |
462004f1 | 611 | struct regulator_config config = {}; |
2cd64ae3 | 612 | struct regulator_dev *rk808_rdev; |
bad47ad2 | 613 | struct rk808_regulator_data *pdata; |
11375293 WE |
614 | const struct regulator_desc *regulators; |
615 | int ret, i, nregulators; | |
2cd64ae3 | 616 | |
bad47ad2 CZ |
617 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
618 | if (!pdata) | |
619 | return -ENOMEM; | |
2cd64ae3 | 620 | |
bad47ad2 CZ |
621 | ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev, |
622 | rk808->regmap, pdata); | |
571a4010 | 623 | if (ret < 0) |
2cd64ae3 CZ |
624 | return ret; |
625 | ||
bad47ad2 CZ |
626 | platform_set_drvdata(pdev, pdata); |
627 | ||
11375293 WE |
628 | switch (rk808->variant) { |
629 | case RK808_ID: | |
630 | regulators = rk808_reg; | |
631 | nregulators = RK808_NUM_REGULATORS; | |
632 | break; | |
633 | case RK818_ID: | |
634 | regulators = rk818_reg; | |
635 | nregulators = RK818_NUM_REGULATORS; | |
636 | break; | |
637 | default: | |
638 | dev_err(&client->dev, "unsupported RK8XX ID %lu\n", | |
639 | rk808->variant); | |
640 | return -EINVAL; | |
641 | } | |
642 | ||
9e9daa0a WE |
643 | config.dev = &client->dev; |
644 | config.driver_data = pdata; | |
645 | config.regmap = rk808->regmap; | |
646 | ||
2cd64ae3 | 647 | /* Instantiate the regulators */ |
11375293 | 648 | for (i = 0; i < nregulators; i++) { |
2cd64ae3 | 649 | rk808_rdev = devm_regulator_register(&pdev->dev, |
11375293 | 650 | ®ulators[i], &config); |
2cd64ae3 | 651 | if (IS_ERR(rk808_rdev)) { |
d76c333e | 652 | dev_err(&client->dev, |
2cd64ae3 CZ |
653 | "failed to register %d regulator\n", i); |
654 | return PTR_ERR(rk808_rdev); | |
655 | } | |
2cd64ae3 | 656 | } |
571a4010 | 657 | |
2cd64ae3 CZ |
658 | return 0; |
659 | } | |
660 | ||
661 | static struct platform_driver rk808_regulator_driver = { | |
662 | .probe = rk808_regulator_probe, | |
663 | .driver = { | |
556ae220 | 664 | .name = "rk808-regulator" |
2cd64ae3 CZ |
665 | }, |
666 | }; | |
667 | ||
668 | module_platform_driver(rk808_regulator_driver); | |
669 | ||
11375293 WE |
670 | MODULE_DESCRIPTION("regulator driver for the RK808/RK818 series PMICs"); |
671 | MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); | |
672 | MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>"); | |
673 | MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>"); | |
2cd64ae3 CZ |
674 | MODULE_LICENSE("GPL"); |
675 | MODULE_ALIAS("platform:rk808-regulator"); |