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1/*
2 * tps65910.c -- TI TPS6591x
3 *
4 * Copyright 2010 Texas Instruments Inc.
5 *
6 * Author: Graeme Gregory <gg@slimlogic.co.uk>
7 * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 */
15
16#include <linux/module.h>
17#include <linux/moduleparam.h>
18#include <linux/init.h>
19#include <linux/slab.h>
20#include <linux/i2c.h>
21#include <linux/gpio.h>
22#include <linux/mfd/core.h>
23#include <linux/mfd/tps65910.h>
24
25static struct mfd_cell tps65910s[] = {
26 {
27 .name = "tps65910-pmic",
28 },
29 {
30 .name = "tps65910-rtc",
31 },
32 {
33 .name = "tps65910-power",
34 },
35};
36
37
38static int tps65910_i2c_read(struct tps65910 *tps65910, u8 reg,
39 int bytes, void *dest)
40{
41 struct i2c_client *i2c = tps65910->i2c_client;
42 struct i2c_msg xfer[2];
43 int ret;
44
45 /* Write register */
46 xfer[0].addr = i2c->addr;
47 xfer[0].flags = 0;
48 xfer[0].len = 1;
49 xfer[0].buf = ®
50
51 /* Read data */
52 xfer[1].addr = i2c->addr;
53 xfer[1].flags = I2C_M_RD;
54 xfer[1].len = bytes;
55 xfer[1].buf = dest;
56
57 ret = i2c_transfer(i2c->adapter, xfer, 2);
58 if (ret == 2)
59 ret = 0;
60 else if (ret >= 0)
61 ret = -EIO;
62
63 return ret;
64}
65
66static int tps65910_i2c_write(struct tps65910 *tps65910, u8 reg,
67 int bytes, void *src)
68{
69 struct i2c_client *i2c = tps65910->i2c_client;
70 /* we add 1 byte for device register */
71 u8 msg[TPS65910_MAX_REGISTER + 1];
72 int ret;
73
74 if (bytes > TPS65910_MAX_REGISTER)
75 return -EINVAL;
76
77 msg[0] = reg;
78 memcpy(&msg[1], src, bytes);
79
80 ret = i2c_master_send(i2c, msg, bytes + 1);
81 if (ret < 0)
82 return ret;
83 if (ret != bytes + 1)
84 return -EIO;
85 return 0;
86}
87
88int tps65910_set_bits(struct tps65910 *tps65910, u8 reg, u8 mask)
89{
90 u8 data;
91 int err;
92
93 mutex_lock(&tps65910->io_mutex);
94 err = tps65910_i2c_read(tps65910, reg, 1, &data);
95 if (err) {
96 dev_err(tps65910->dev, "read from reg %x failed\n", reg);
97 goto out;
98 }
99
100 data |= mask;
101 err = tps65910_i2c_write(tps65910, reg, 1, &data);
102 if (err)
103 dev_err(tps65910->dev, "write to reg %x failed\n", reg);
104
105out:
106 mutex_unlock(&tps65910->io_mutex);
107 return err;
108}
109EXPORT_SYMBOL_GPL(tps65910_set_bits);
110
111int tps65910_clear_bits(struct tps65910 *tps65910, u8 reg, u8 mask)
112{
113 u8 data;
114 int err;
115
116 mutex_lock(&tps65910->io_mutex);
117 err = tps65910_i2c_read(tps65910, reg, 1, &data);
118 if (err) {
119 dev_err(tps65910->dev, "read from reg %x failed\n", reg);
120 goto out;
121 }
122
123 data &= mask;
124 err = tps65910_i2c_write(tps65910, reg, 1, &data);
125 if (err)
126 dev_err(tps65910->dev, "write to reg %x failed\n", reg);
127
128out:
129 mutex_unlock(&tps65910->io_mutex);
130 return err;
131}
132EXPORT_SYMBOL_GPL(tps65910_clear_bits);
133
134static int tps65910_i2c_probe(struct i2c_client *i2c,
135 const struct i2c_device_id *id)
136{
137 struct tps65910 *tps65910;
138 struct tps65910_board *pmic_plat_data;
139 struct tps65910_platform_data *init_data;
140 int ret = 0;
141
142 pmic_plat_data = dev_get_platdata(&i2c->dev);
143 if (!pmic_plat_data)
144 return -EINVAL;
145
146 init_data = kzalloc(sizeof(struct tps65910_platform_data), GFP_KERNEL);
147 if (init_data == NULL)
148 return -ENOMEM;
149
150 tps65910 = kzalloc(sizeof(struct tps65910), GFP_KERNEL);
151 if (tps65910 == NULL) {
152 kfree(init_data);
153 return -ENOMEM;
154 }
155
156 i2c_set_clientdata(i2c, tps65910);
157 tps65910->dev = &i2c->dev;
158 tps65910->i2c_client = i2c;
159 tps65910->id = id->driver_data;
160 tps65910->read = tps65910_i2c_read;
161 tps65910->write = tps65910_i2c_write;
162 mutex_init(&tps65910->io_mutex);
163
164 ret = mfd_add_devices(tps65910->dev, -1,
165 tps65910s, ARRAY_SIZE(tps65910s),
166 NULL, 0);
167 if (ret < 0)
168 goto err;
169
170 init_data->irq = pmic_plat_data->irq;
171 init_data->irq_base = pmic_plat_data->irq;
172
173 tps65910_gpio_init(tps65910, pmic_plat_data->gpio_base);
174
175 ret = tps65910_irq_init(tps65910, init_data->irq, init_data);
176 if (ret < 0)
177 goto err;
178
179 kfree(init_data);
180 return ret;
181
182err:
183 mfd_remove_devices(tps65910->dev);
184 kfree(tps65910);
185 kfree(init_data);
186 return ret;
187}
188
189static int tps65910_i2c_remove(struct i2c_client *i2c)
190{
191 struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
192
193 mfd_remove_devices(tps65910->dev);
194 tps65910_irq_exit(tps65910);
195 kfree(tps65910);
196
197 return 0;
198}
199
200static const struct i2c_device_id tps65910_i2c_id[] = {
201 { "tps65910", TPS65910 },
202 { "tps65911", TPS65911 },
203 { }
204};
205MODULE_DEVICE_TABLE(i2c, tps65910_i2c_id);
206
207
208static struct i2c_driver tps65910_i2c_driver = {
209 .driver = {
210 .name = "tps65910",
211 .owner = THIS_MODULE,
212 },
213 .probe = tps65910_i2c_probe,
214 .remove = tps65910_i2c_remove,
215 .id_table = tps65910_i2c_id,
216};
217
218static int __init tps65910_i2c_init(void)
219{
220 return i2c_add_driver(&tps65910_i2c_driver);
221}
222/* init early so consumer devices can complete system boot */
223subsys_initcall(tps65910_i2c_init);
224
225static void __exit tps65910_i2c_exit(void)
226{
227 i2c_del_driver(&tps65910_i2c_driver);
228}
229module_exit(tps65910_i2c_exit);
230
231MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
232MODULE_AUTHOR("Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>");
233MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
234MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * tps65910.c -- TI TPS6591x chip family multi-function driver
4 *
5 * Copyright 2010 Texas Instruments Inc.
6 *
7 * Author: Graeme Gregory <gg@slimlogic.co.uk>
8 * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
9 */
10
11#include <linux/init.h>
12#include <linux/err.h>
13#include <linux/slab.h>
14#include <linux/i2c.h>
15#include <linux/interrupt.h>
16#include <linux/irq.h>
17#include <linux/irqdomain.h>
18#include <linux/mfd/core.h>
19#include <linux/regmap.h>
20#include <linux/mfd/tps65910.h>
21#include <linux/of.h>
22#include <linux/of_device.h>
23
24static const struct resource rtc_resources[] = {
25 {
26 .start = TPS65910_IRQ_RTC_ALARM,
27 .end = TPS65910_IRQ_RTC_ALARM,
28 .flags = IORESOURCE_IRQ,
29 }
30};
31
32static const struct mfd_cell tps65910s[] = {
33 {
34 .name = "tps65910-gpio",
35 },
36 {
37 .name = "tps65910-pmic",
38 },
39 {
40 .name = "tps65910-rtc",
41 .num_resources = ARRAY_SIZE(rtc_resources),
42 .resources = &rtc_resources[0],
43 },
44 {
45 .name = "tps65910-power",
46 },
47};
48
49
50static const struct regmap_irq tps65911_irqs[] = {
51 /* INT_STS */
52 [TPS65911_IRQ_PWRHOLD_F] = {
53 .mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK,
54 .reg_offset = 0,
55 },
56 [TPS65911_IRQ_VBAT_VMHI] = {
57 .mask = INT_MSK_VMBHI_IT_MSK_MASK,
58 .reg_offset = 0,
59 },
60 [TPS65911_IRQ_PWRON] = {
61 .mask = INT_MSK_PWRON_IT_MSK_MASK,
62 .reg_offset = 0,
63 },
64 [TPS65911_IRQ_PWRON_LP] = {
65 .mask = INT_MSK_PWRON_LP_IT_MSK_MASK,
66 .reg_offset = 0,
67 },
68 [TPS65911_IRQ_PWRHOLD_R] = {
69 .mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK,
70 .reg_offset = 0,
71 },
72 [TPS65911_IRQ_HOTDIE] = {
73 .mask = INT_MSK_HOTDIE_IT_MSK_MASK,
74 .reg_offset = 0,
75 },
76 [TPS65911_IRQ_RTC_ALARM] = {
77 .mask = INT_MSK_RTC_ALARM_IT_MSK_MASK,
78 .reg_offset = 0,
79 },
80 [TPS65911_IRQ_RTC_PERIOD] = {
81 .mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK,
82 .reg_offset = 0,
83 },
84
85 /* INT_STS2 */
86 [TPS65911_IRQ_GPIO0_R] = {
87 .mask = INT_MSK2_GPIO0_R_IT_MSK_MASK,
88 .reg_offset = 1,
89 },
90 [TPS65911_IRQ_GPIO0_F] = {
91 .mask = INT_MSK2_GPIO0_F_IT_MSK_MASK,
92 .reg_offset = 1,
93 },
94 [TPS65911_IRQ_GPIO1_R] = {
95 .mask = INT_MSK2_GPIO1_R_IT_MSK_MASK,
96 .reg_offset = 1,
97 },
98 [TPS65911_IRQ_GPIO1_F] = {
99 .mask = INT_MSK2_GPIO1_F_IT_MSK_MASK,
100 .reg_offset = 1,
101 },
102 [TPS65911_IRQ_GPIO2_R] = {
103 .mask = INT_MSK2_GPIO2_R_IT_MSK_MASK,
104 .reg_offset = 1,
105 },
106 [TPS65911_IRQ_GPIO2_F] = {
107 .mask = INT_MSK2_GPIO2_F_IT_MSK_MASK,
108 .reg_offset = 1,
109 },
110 [TPS65911_IRQ_GPIO3_R] = {
111 .mask = INT_MSK2_GPIO3_R_IT_MSK_MASK,
112 .reg_offset = 1,
113 },
114 [TPS65911_IRQ_GPIO3_F] = {
115 .mask = INT_MSK2_GPIO3_F_IT_MSK_MASK,
116 .reg_offset = 1,
117 },
118
119 /* INT_STS2 */
120 [TPS65911_IRQ_GPIO4_R] = {
121 .mask = INT_MSK3_GPIO4_R_IT_MSK_MASK,
122 .reg_offset = 2,
123 },
124 [TPS65911_IRQ_GPIO4_F] = {
125 .mask = INT_MSK3_GPIO4_F_IT_MSK_MASK,
126 .reg_offset = 2,
127 },
128 [TPS65911_IRQ_GPIO5_R] = {
129 .mask = INT_MSK3_GPIO5_R_IT_MSK_MASK,
130 .reg_offset = 2,
131 },
132 [TPS65911_IRQ_GPIO5_F] = {
133 .mask = INT_MSK3_GPIO5_F_IT_MSK_MASK,
134 .reg_offset = 2,
135 },
136 [TPS65911_IRQ_WTCHDG] = {
137 .mask = INT_MSK3_WTCHDG_IT_MSK_MASK,
138 .reg_offset = 2,
139 },
140 [TPS65911_IRQ_VMBCH2_H] = {
141 .mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK,
142 .reg_offset = 2,
143 },
144 [TPS65911_IRQ_VMBCH2_L] = {
145 .mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK,
146 .reg_offset = 2,
147 },
148 [TPS65911_IRQ_PWRDN] = {
149 .mask = INT_MSK3_PWRDN_IT_MSK_MASK,
150 .reg_offset = 2,
151 },
152};
153
154static const struct regmap_irq tps65910_irqs[] = {
155 /* INT_STS */
156 [TPS65910_IRQ_VBAT_VMBDCH] = {
157 .mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK,
158 .reg_offset = 0,
159 },
160 [TPS65910_IRQ_VBAT_VMHI] = {
161 .mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK,
162 .reg_offset = 0,
163 },
164 [TPS65910_IRQ_PWRON] = {
165 .mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK,
166 .reg_offset = 0,
167 },
168 [TPS65910_IRQ_PWRON_LP] = {
169 .mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK,
170 .reg_offset = 0,
171 },
172 [TPS65910_IRQ_PWRHOLD] = {
173 .mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK,
174 .reg_offset = 0,
175 },
176 [TPS65910_IRQ_HOTDIE] = {
177 .mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK,
178 .reg_offset = 0,
179 },
180 [TPS65910_IRQ_RTC_ALARM] = {
181 .mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK,
182 .reg_offset = 0,
183 },
184 [TPS65910_IRQ_RTC_PERIOD] = {
185 .mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK,
186 .reg_offset = 0,
187 },
188
189 /* INT_STS2 */
190 [TPS65910_IRQ_GPIO_R] = {
191 .mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK,
192 .reg_offset = 1,
193 },
194 [TPS65910_IRQ_GPIO_F] = {
195 .mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK,
196 .reg_offset = 1,
197 },
198};
199
200static struct regmap_irq_chip tps65911_irq_chip = {
201 .name = "tps65910",
202 .irqs = tps65911_irqs,
203 .num_irqs = ARRAY_SIZE(tps65911_irqs),
204 .num_regs = 3,
205 .irq_reg_stride = 2,
206 .status_base = TPS65910_INT_STS,
207 .mask_base = TPS65910_INT_MSK,
208 .ack_base = TPS65910_INT_STS,
209};
210
211static struct regmap_irq_chip tps65910_irq_chip = {
212 .name = "tps65910",
213 .irqs = tps65910_irqs,
214 .num_irqs = ARRAY_SIZE(tps65910_irqs),
215 .num_regs = 2,
216 .irq_reg_stride = 2,
217 .status_base = TPS65910_INT_STS,
218 .mask_base = TPS65910_INT_MSK,
219 .ack_base = TPS65910_INT_STS,
220};
221
222static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
223 struct tps65910_platform_data *pdata)
224{
225 int ret;
226 static struct regmap_irq_chip *tps6591x_irqs_chip;
227
228 if (!irq) {
229 dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
230 return -EINVAL;
231 }
232
233 if (!pdata) {
234 dev_warn(tps65910->dev, "No interrupt support, no pdata\n");
235 return -EINVAL;
236 }
237
238 switch (tps65910_chip_id(tps65910)) {
239 case TPS65910:
240 tps6591x_irqs_chip = &tps65910_irq_chip;
241 break;
242 case TPS65911:
243 tps6591x_irqs_chip = &tps65911_irq_chip;
244 break;
245 }
246
247 tps65910->chip_irq = irq;
248 ret = devm_regmap_add_irq_chip(tps65910->dev, tps65910->regmap,
249 tps65910->chip_irq,
250 IRQF_ONESHOT, pdata->irq_base,
251 tps6591x_irqs_chip, &tps65910->irq_data);
252 if (ret < 0) {
253 dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret);
254 tps65910->chip_irq = 0;
255 }
256 return ret;
257}
258
259static bool is_volatile_reg(struct device *dev, unsigned int reg)
260{
261 struct tps65910 *tps65910 = dev_get_drvdata(dev);
262
263 /*
264 * Caching all regulator registers.
265 * All regualator register address range is same for
266 * TPS65910 and TPS65911
267 */
268 if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
269 /* Check for non-existing register */
270 if (tps65910_chip_id(tps65910) == TPS65910)
271 if ((reg == TPS65911_VDDCTRL_OP) ||
272 (reg == TPS65911_VDDCTRL_SR))
273 return true;
274 return false;
275 }
276 return true;
277}
278
279static const struct regmap_config tps65910_regmap_config = {
280 .reg_bits = 8,
281 .val_bits = 8,
282 .volatile_reg = is_volatile_reg,
283 .max_register = TPS65910_MAX_REGISTER - 1,
284 .cache_type = REGCACHE_RBTREE,
285};
286
287static int tps65910_ck32k_init(struct tps65910 *tps65910,
288 struct tps65910_board *pmic_pdata)
289{
290 int ret;
291
292 if (!pmic_pdata->en_ck32k_xtal)
293 return 0;
294
295 ret = regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
296 DEVCTRL_CK32K_CTRL_MASK);
297 if (ret < 0) {
298 dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
299 return ret;
300 }
301
302 return 0;
303}
304
305static int tps65910_sleepinit(struct tps65910 *tps65910,
306 struct tps65910_board *pmic_pdata)
307{
308 struct device *dev;
309 int ret;
310
311 if (!pmic_pdata->en_dev_slp)
312 return 0;
313
314 dev = tps65910->dev;
315
316 /* enabling SLEEP device state */
317 ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
318 DEVCTRL_DEV_SLP_MASK);
319 if (ret < 0) {
320 dev_err(dev, "set dev_slp failed: %d\n", ret);
321 goto err_sleep_init;
322 }
323
324 if (pmic_pdata->slp_keepon.therm_keepon) {
325 ret = regmap_set_bits(tps65910->regmap,
326 TPS65910_SLEEP_KEEP_RES_ON,
327 SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
328 if (ret < 0) {
329 dev_err(dev, "set therm_keepon failed: %d\n", ret);
330 goto disable_dev_slp;
331 }
332 }
333
334 if (pmic_pdata->slp_keepon.clkout32k_keepon) {
335 ret = regmap_set_bits(tps65910->regmap,
336 TPS65910_SLEEP_KEEP_RES_ON,
337 SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
338 if (ret < 0) {
339 dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
340 goto disable_dev_slp;
341 }
342 }
343
344 if (pmic_pdata->slp_keepon.i2chs_keepon) {
345 ret = regmap_set_bits(tps65910->regmap,
346 TPS65910_SLEEP_KEEP_RES_ON,
347 SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
348 if (ret < 0) {
349 dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
350 goto disable_dev_slp;
351 }
352 }
353
354 return 0;
355
356disable_dev_slp:
357 regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
358 DEVCTRL_DEV_SLP_MASK);
359
360err_sleep_init:
361 return ret;
362}
363
364#ifdef CONFIG_OF
365static const struct of_device_id tps65910_of_match[] = {
366 { .compatible = "ti,tps65910", .data = (void *)TPS65910},
367 { .compatible = "ti,tps65911", .data = (void *)TPS65911},
368 { },
369};
370
371static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
372 unsigned long *chip_id)
373{
374 struct device_node *np = client->dev.of_node;
375 struct tps65910_board *board_info;
376 unsigned int prop;
377 const struct of_device_id *match;
378 int ret;
379
380 match = of_match_device(tps65910_of_match, &client->dev);
381 if (!match) {
382 dev_err(&client->dev, "Failed to find matching dt id\n");
383 return NULL;
384 }
385
386 *chip_id = (unsigned long)match->data;
387
388 board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
389 GFP_KERNEL);
390 if (!board_info)
391 return NULL;
392
393 ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
394 if (!ret)
395 board_info->vmbch_threshold = prop;
396
397 ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
398 if (!ret)
399 board_info->vmbch2_threshold = prop;
400
401 prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
402 board_info->en_ck32k_xtal = prop;
403
404 prop = of_property_read_bool(np, "ti,sleep-enable");
405 board_info->en_dev_slp = prop;
406
407 prop = of_property_read_bool(np, "ti,sleep-keep-therm");
408 board_info->slp_keepon.therm_keepon = prop;
409
410 prop = of_property_read_bool(np, "ti,sleep-keep-ck32k");
411 board_info->slp_keepon.clkout32k_keepon = prop;
412
413 prop = of_property_read_bool(np, "ti,sleep-keep-hsclk");
414 board_info->slp_keepon.i2chs_keepon = prop;
415
416 board_info->irq = client->irq;
417 board_info->irq_base = -1;
418 board_info->pm_off = of_property_read_bool(np,
419 "ti,system-power-controller");
420
421 return board_info;
422}
423#else
424static inline
425struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
426 unsigned long *chip_id)
427{
428 return NULL;
429}
430#endif
431
432static struct i2c_client *tps65910_i2c_client;
433static void tps65910_power_off(void)
434{
435 struct tps65910 *tps65910;
436
437 tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
438
439 /*
440 * The PWR_OFF bit needs to be set separately, before transitioning
441 * to the OFF state. It enables the "sequential" power-off mode on
442 * TPS65911, it's a NO-OP on TPS65910.
443 */
444 if (regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
445 DEVCTRL_PWR_OFF_MASK) < 0)
446 return;
447
448 regmap_update_bits(tps65910->regmap, TPS65910_DEVCTRL,
449 DEVCTRL_DEV_OFF_MASK | DEVCTRL_DEV_ON_MASK,
450 DEVCTRL_DEV_OFF_MASK);
451}
452
453static int tps65910_i2c_probe(struct i2c_client *i2c,
454 const struct i2c_device_id *id)
455{
456 struct tps65910 *tps65910;
457 struct tps65910_board *pmic_plat_data;
458 struct tps65910_board *of_pmic_plat_data = NULL;
459 struct tps65910_platform_data *init_data;
460 unsigned long chip_id = id->driver_data;
461 int ret;
462
463 pmic_plat_data = dev_get_platdata(&i2c->dev);
464
465 if (!pmic_plat_data && i2c->dev.of_node) {
466 pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
467 of_pmic_plat_data = pmic_plat_data;
468 }
469
470 if (!pmic_plat_data)
471 return -EINVAL;
472
473 init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
474 if (init_data == NULL)
475 return -ENOMEM;
476
477 tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
478 if (tps65910 == NULL)
479 return -ENOMEM;
480
481 tps65910->of_plat_data = of_pmic_plat_data;
482 i2c_set_clientdata(i2c, tps65910);
483 tps65910->dev = &i2c->dev;
484 tps65910->i2c_client = i2c;
485 tps65910->id = chip_id;
486
487 /* Work around silicon erratum SWCZ010: the tps65910 may miss the
488 * first I2C transfer. So issue a dummy transfer before the first
489 * real transfer.
490 */
491 i2c_master_send(i2c, "", 1);
492 tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
493 if (IS_ERR(tps65910->regmap)) {
494 ret = PTR_ERR(tps65910->regmap);
495 dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
496 return ret;
497 }
498
499 init_data->irq = pmic_plat_data->irq;
500 init_data->irq_base = pmic_plat_data->irq_base;
501
502 tps65910_irq_init(tps65910, init_data->irq, init_data);
503 tps65910_ck32k_init(tps65910, pmic_plat_data);
504 tps65910_sleepinit(tps65910, pmic_plat_data);
505
506 if (pmic_plat_data->pm_off && !pm_power_off) {
507 tps65910_i2c_client = i2c;
508 pm_power_off = tps65910_power_off;
509 }
510
511 ret = devm_mfd_add_devices(tps65910->dev, -1,
512 tps65910s, ARRAY_SIZE(tps65910s),
513 NULL, 0,
514 regmap_irq_get_domain(tps65910->irq_data));
515 if (ret < 0) {
516 dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
517 return ret;
518 }
519
520 return ret;
521}
522
523static const struct i2c_device_id tps65910_i2c_id[] = {
524 { "tps65910", TPS65910 },
525 { "tps65911", TPS65911 },
526 { }
527};
528
529static struct i2c_driver tps65910_i2c_driver = {
530 .driver = {
531 .name = "tps65910",
532 .of_match_table = of_match_ptr(tps65910_of_match),
533 },
534 .probe = tps65910_i2c_probe,
535 .id_table = tps65910_i2c_id,
536};
537
538static int __init tps65910_i2c_init(void)
539{
540 return i2c_add_driver(&tps65910_i2c_driver);
541}
542/* init early so consumer devices can complete system boot */
543subsys_initcall(tps65910_i2c_init);