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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/*
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/err.h>
20#include <linux/slab.h>
21#include <linux/i2c.h>
22#include <linux/interrupt.h>
23#include <linux/irq.h>
24#include <linux/irqdomain.h>
25#include <linux/mfd/core.h>
26#include <linux/regmap.h>
27#include <linux/mfd/tps65910.h>
28#include <linux/of.h>
29#include <linux/of_device.h>
30
31static struct resource rtc_resources[] = {
32 {
33 .start = TPS65910_IRQ_RTC_ALARM,
34 .end = TPS65910_IRQ_RTC_ALARM,
35 .flags = IORESOURCE_IRQ,
36 }
37};
38
39static const struct mfd_cell tps65910s[] = {
40 {
41 .name = "tps65910-gpio",
42 },
43 {
44 .name = "tps65910-pmic",
45 },
46 {
47 .name = "tps65910-rtc",
48 .num_resources = ARRAY_SIZE(rtc_resources),
49 .resources = &rtc_resources[0],
50 },
51 {
52 .name = "tps65910-power",
53 },
54};
55
56
57static const struct regmap_irq tps65911_irqs[] = {
58 /* INT_STS */
59 [TPS65911_IRQ_PWRHOLD_F] = {
60 .mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK,
61 .reg_offset = 0,
62 },
63 [TPS65911_IRQ_VBAT_VMHI] = {
64 .mask = INT_MSK_VMBHI_IT_MSK_MASK,
65 .reg_offset = 0,
66 },
67 [TPS65911_IRQ_PWRON] = {
68 .mask = INT_MSK_PWRON_IT_MSK_MASK,
69 .reg_offset = 0,
70 },
71 [TPS65911_IRQ_PWRON_LP] = {
72 .mask = INT_MSK_PWRON_LP_IT_MSK_MASK,
73 .reg_offset = 0,
74 },
75 [TPS65911_IRQ_PWRHOLD_R] = {
76 .mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK,
77 .reg_offset = 0,
78 },
79 [TPS65911_IRQ_HOTDIE] = {
80 .mask = INT_MSK_HOTDIE_IT_MSK_MASK,
81 .reg_offset = 0,
82 },
83 [TPS65911_IRQ_RTC_ALARM] = {
84 .mask = INT_MSK_RTC_ALARM_IT_MSK_MASK,
85 .reg_offset = 0,
86 },
87 [TPS65911_IRQ_RTC_PERIOD] = {
88 .mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK,
89 .reg_offset = 0,
90 },
91
92 /* INT_STS2 */
93 [TPS65911_IRQ_GPIO0_R] = {
94 .mask = INT_MSK2_GPIO0_R_IT_MSK_MASK,
95 .reg_offset = 1,
96 },
97 [TPS65911_IRQ_GPIO0_F] = {
98 .mask = INT_MSK2_GPIO0_F_IT_MSK_MASK,
99 .reg_offset = 1,
100 },
101 [TPS65911_IRQ_GPIO1_R] = {
102 .mask = INT_MSK2_GPIO1_R_IT_MSK_MASK,
103 .reg_offset = 1,
104 },
105 [TPS65911_IRQ_GPIO1_F] = {
106 .mask = INT_MSK2_GPIO1_F_IT_MSK_MASK,
107 .reg_offset = 1,
108 },
109 [TPS65911_IRQ_GPIO2_R] = {
110 .mask = INT_MSK2_GPIO2_R_IT_MSK_MASK,
111 .reg_offset = 1,
112 },
113 [TPS65911_IRQ_GPIO2_F] = {
114 .mask = INT_MSK2_GPIO2_F_IT_MSK_MASK,
115 .reg_offset = 1,
116 },
117 [TPS65911_IRQ_GPIO3_R] = {
118 .mask = INT_MSK2_GPIO3_R_IT_MSK_MASK,
119 .reg_offset = 1,
120 },
121 [TPS65911_IRQ_GPIO3_F] = {
122 .mask = INT_MSK2_GPIO3_F_IT_MSK_MASK,
123 .reg_offset = 1,
124 },
125
126 /* INT_STS2 */
127 [TPS65911_IRQ_GPIO4_R] = {
128 .mask = INT_MSK3_GPIO4_R_IT_MSK_MASK,
129 .reg_offset = 2,
130 },
131 [TPS65911_IRQ_GPIO4_F] = {
132 .mask = INT_MSK3_GPIO4_F_IT_MSK_MASK,
133 .reg_offset = 2,
134 },
135 [TPS65911_IRQ_GPIO5_R] = {
136 .mask = INT_MSK3_GPIO5_R_IT_MSK_MASK,
137 .reg_offset = 2,
138 },
139 [TPS65911_IRQ_GPIO5_F] = {
140 .mask = INT_MSK3_GPIO5_F_IT_MSK_MASK,
141 .reg_offset = 2,
142 },
143 [TPS65911_IRQ_WTCHDG] = {
144 .mask = INT_MSK3_WTCHDG_IT_MSK_MASK,
145 .reg_offset = 2,
146 },
147 [TPS65911_IRQ_VMBCH2_H] = {
148 .mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK,
149 .reg_offset = 2,
150 },
151 [TPS65911_IRQ_VMBCH2_L] = {
152 .mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK,
153 .reg_offset = 2,
154 },
155 [TPS65911_IRQ_PWRDN] = {
156 .mask = INT_MSK3_PWRDN_IT_MSK_MASK,
157 .reg_offset = 2,
158 },
159};
160
161static const struct regmap_irq tps65910_irqs[] = {
162 /* INT_STS */
163 [TPS65910_IRQ_VBAT_VMBDCH] = {
164 .mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK,
165 .reg_offset = 0,
166 },
167 [TPS65910_IRQ_VBAT_VMHI] = {
168 .mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK,
169 .reg_offset = 0,
170 },
171 [TPS65910_IRQ_PWRON] = {
172 .mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK,
173 .reg_offset = 0,
174 },
175 [TPS65910_IRQ_PWRON_LP] = {
176 .mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK,
177 .reg_offset = 0,
178 },
179 [TPS65910_IRQ_PWRHOLD] = {
180 .mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK,
181 .reg_offset = 0,
182 },
183 [TPS65910_IRQ_HOTDIE] = {
184 .mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK,
185 .reg_offset = 0,
186 },
187 [TPS65910_IRQ_RTC_ALARM] = {
188 .mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK,
189 .reg_offset = 0,
190 },
191 [TPS65910_IRQ_RTC_PERIOD] = {
192 .mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK,
193 .reg_offset = 0,
194 },
195
196 /* INT_STS2 */
197 [TPS65910_IRQ_GPIO_R] = {
198 .mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK,
199 .reg_offset = 1,
200 },
201 [TPS65910_IRQ_GPIO_F] = {
202 .mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK,
203 .reg_offset = 1,
204 },
205};
206
207static struct regmap_irq_chip tps65911_irq_chip = {
208 .name = "tps65910",
209 .irqs = tps65911_irqs,
210 .num_irqs = ARRAY_SIZE(tps65911_irqs),
211 .num_regs = 3,
212 .irq_reg_stride = 2,
213 .status_base = TPS65910_INT_STS,
214 .mask_base = TPS65910_INT_MSK,
215 .ack_base = TPS65910_INT_STS,
216};
217
218static struct regmap_irq_chip tps65910_irq_chip = {
219 .name = "tps65910",
220 .irqs = tps65910_irqs,
221 .num_irqs = ARRAY_SIZE(tps65910_irqs),
222 .num_regs = 2,
223 .irq_reg_stride = 2,
224 .status_base = TPS65910_INT_STS,
225 .mask_base = TPS65910_INT_MSK,
226 .ack_base = TPS65910_INT_STS,
227};
228
229static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
230 struct tps65910_platform_data *pdata)
231{
232 int ret = 0;
233 static struct regmap_irq_chip *tps6591x_irqs_chip;
234
235 if (!irq) {
236 dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
237 return -EINVAL;
238 }
239
240 if (!pdata) {
241 dev_warn(tps65910->dev, "No interrupt support, no pdata\n");
242 return -EINVAL;
243 }
244
245 switch (tps65910_chip_id(tps65910)) {
246 case TPS65910:
247 tps6591x_irqs_chip = &tps65910_irq_chip;
248 break;
249 case TPS65911:
250 tps6591x_irqs_chip = &tps65911_irq_chip;
251 break;
252 }
253
254 tps65910->chip_irq = irq;
255 ret = regmap_add_irq_chip(tps65910->regmap, tps65910->chip_irq,
256 IRQF_ONESHOT, pdata->irq_base,
257 tps6591x_irqs_chip, &tps65910->irq_data);
258 if (ret < 0) {
259 dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret);
260 tps65910->chip_irq = 0;
261 }
262 return ret;
263}
264
265static int tps65910_irq_exit(struct tps65910 *tps65910)
266{
267 if (tps65910->chip_irq > 0)
268 regmap_del_irq_chip(tps65910->chip_irq, tps65910->irq_data);
269 return 0;
270}
271
272static bool is_volatile_reg(struct device *dev, unsigned int reg)
273{
274 struct tps65910 *tps65910 = dev_get_drvdata(dev);
275
276 /*
277 * Caching all regulator registers.
278 * All regualator register address range is same for
279 * TPS65910 and TPS65911
280 */
281 if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
282 /* Check for non-existing register */
283 if (tps65910_chip_id(tps65910) == TPS65910)
284 if ((reg == TPS65911_VDDCTRL_OP) ||
285 (reg == TPS65911_VDDCTRL_SR))
286 return true;
287 return false;
288 }
289 return true;
290}
291
292static const struct regmap_config tps65910_regmap_config = {
293 .reg_bits = 8,
294 .val_bits = 8,
295 .volatile_reg = is_volatile_reg,
296 .max_register = TPS65910_MAX_REGISTER - 1,
297 .cache_type = REGCACHE_RBTREE,
298};
299
300static int tps65910_ck32k_init(struct tps65910 *tps65910,
301 struct tps65910_board *pmic_pdata)
302{
303 int ret;
304
305 if (!pmic_pdata->en_ck32k_xtal)
306 return 0;
307
308 ret = tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
309 DEVCTRL_CK32K_CTRL_MASK);
310 if (ret < 0) {
311 dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
312 return ret;
313 }
314
315 return 0;
316}
317
318static int tps65910_sleepinit(struct tps65910 *tps65910,
319 struct tps65910_board *pmic_pdata)
320{
321 struct device *dev = NULL;
322 int ret = 0;
323
324 dev = tps65910->dev;
325
326 if (!pmic_pdata->en_dev_slp)
327 return 0;
328
329 /* enabling SLEEP device state */
330 ret = tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
331 DEVCTRL_DEV_SLP_MASK);
332 if (ret < 0) {
333 dev_err(dev, "set dev_slp failed: %d\n", ret);
334 goto err_sleep_init;
335 }
336
337 /* Return if there is no sleep keepon data. */
338 if (!pmic_pdata->slp_keepon)
339 return 0;
340
341 if (pmic_pdata->slp_keepon->therm_keepon) {
342 ret = tps65910_reg_set_bits(tps65910,
343 TPS65910_SLEEP_KEEP_RES_ON,
344 SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
345 if (ret < 0) {
346 dev_err(dev, "set therm_keepon failed: %d\n", ret);
347 goto disable_dev_slp;
348 }
349 }
350
351 if (pmic_pdata->slp_keepon->clkout32k_keepon) {
352 ret = tps65910_reg_set_bits(tps65910,
353 TPS65910_SLEEP_KEEP_RES_ON,
354 SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
355 if (ret < 0) {
356 dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
357 goto disable_dev_slp;
358 }
359 }
360
361 if (pmic_pdata->slp_keepon->i2chs_keepon) {
362 ret = tps65910_reg_set_bits(tps65910,
363 TPS65910_SLEEP_KEEP_RES_ON,
364 SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
365 if (ret < 0) {
366 dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
367 goto disable_dev_slp;
368 }
369 }
370
371 return 0;
372
373disable_dev_slp:
374 tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
375 DEVCTRL_DEV_SLP_MASK);
376
377err_sleep_init:
378 return ret;
379}
380
381#ifdef CONFIG_OF
382static struct of_device_id tps65910_of_match[] = {
383 { .compatible = "ti,tps65910", .data = (void *)TPS65910},
384 { .compatible = "ti,tps65911", .data = (void *)TPS65911},
385 { },
386};
387MODULE_DEVICE_TABLE(of, tps65910_of_match);
388
389static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
390 int *chip_id)
391{
392 struct device_node *np = client->dev.of_node;
393 struct tps65910_board *board_info;
394 unsigned int prop;
395 const struct of_device_id *match;
396 int ret = 0;
397
398 match = of_match_device(tps65910_of_match, &client->dev);
399 if (!match) {
400 dev_err(&client->dev, "Failed to find matching dt id\n");
401 return NULL;
402 }
403
404 *chip_id = (int)match->data;
405
406 board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
407 GFP_KERNEL);
408 if (!board_info) {
409 dev_err(&client->dev, "Failed to allocate pdata\n");
410 return NULL;
411 }
412
413 ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
414 if (!ret)
415 board_info->vmbch_threshold = prop;
416
417 ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
418 if (!ret)
419 board_info->vmbch2_threshold = prop;
420
421 prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
422 board_info->en_ck32k_xtal = prop;
423
424 board_info->irq = client->irq;
425 board_info->irq_base = -1;
426 board_info->pm_off = of_property_read_bool(np,
427 "ti,system-power-controller");
428
429 return board_info;
430}
431#else
432static inline
433struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
434 int *chip_id)
435{
436 return NULL;
437}
438#endif
439
440static struct i2c_client *tps65910_i2c_client;
441static void tps65910_power_off(void)
442{
443 struct tps65910 *tps65910;
444
445 tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
446
447 if (tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
448 DEVCTRL_PWR_OFF_MASK) < 0)
449 return;
450
451 tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
452 DEVCTRL_DEV_ON_MASK);
453}
454
455static int tps65910_i2c_probe(struct i2c_client *i2c,
456 const struct i2c_device_id *id)
457{
458 struct tps65910 *tps65910;
459 struct tps65910_board *pmic_plat_data;
460 struct tps65910_board *of_pmic_plat_data = NULL;
461 struct tps65910_platform_data *init_data;
462 int ret = 0;
463 int chip_id = id->driver_data;
464
465 pmic_plat_data = dev_get_platdata(&i2c->dev);
466
467 if (!pmic_plat_data && i2c->dev.of_node) {
468 pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
469 of_pmic_plat_data = pmic_plat_data;
470 }
471
472 if (!pmic_plat_data)
473 return -EINVAL;
474
475 init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
476 if (init_data == NULL)
477 return -ENOMEM;
478
479 tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
480 if (tps65910 == NULL)
481 return -ENOMEM;
482
483 tps65910->of_plat_data = of_pmic_plat_data;
484 i2c_set_clientdata(i2c, tps65910);
485 tps65910->dev = &i2c->dev;
486 tps65910->i2c_client = i2c;
487 tps65910->id = chip_id;
488
489 tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
490 if (IS_ERR(tps65910->regmap)) {
491 ret = PTR_ERR(tps65910->regmap);
492 dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
493 return ret;
494 }
495
496 init_data->irq = pmic_plat_data->irq;
497 init_data->irq_base = pmic_plat_data->irq_base;
498
499 tps65910_irq_init(tps65910, init_data->irq, init_data);
500 tps65910_ck32k_init(tps65910, pmic_plat_data);
501 tps65910_sleepinit(tps65910, pmic_plat_data);
502
503 if (pmic_plat_data->pm_off && !pm_power_off) {
504 tps65910_i2c_client = i2c;
505 pm_power_off = tps65910_power_off;
506 }
507
508 ret = mfd_add_devices(tps65910->dev, -1,
509 tps65910s, ARRAY_SIZE(tps65910s),
510 NULL, 0,
511 regmap_irq_get_domain(tps65910->irq_data));
512 if (ret < 0) {
513 dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
514 tps65910_irq_exit(tps65910);
515 return ret;
516 }
517
518 return ret;
519}
520
521static int tps65910_i2c_remove(struct i2c_client *i2c)
522{
523 struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
524
525 tps65910_irq_exit(tps65910);
526 mfd_remove_devices(tps65910->dev);
527
528 return 0;
529}
530
531static const struct i2c_device_id tps65910_i2c_id[] = {
532 { "tps65910", TPS65910 },
533 { "tps65911", TPS65911 },
534 { }
535};
536MODULE_DEVICE_TABLE(i2c, tps65910_i2c_id);
537
538
539static struct i2c_driver tps65910_i2c_driver = {
540 .driver = {
541 .name = "tps65910",
542 .owner = THIS_MODULE,
543 .of_match_table = of_match_ptr(tps65910_of_match),
544 },
545 .probe = tps65910_i2c_probe,
546 .remove = tps65910_i2c_remove,
547 .id_table = tps65910_i2c_id,
548};
549
550static int __init tps65910_i2c_init(void)
551{
552 return i2c_add_driver(&tps65910_i2c_driver);
553}
554/* init early so consumer devices can complete system boot */
555subsys_initcall(tps65910_i2c_init);
556
557static void __exit tps65910_i2c_exit(void)
558{
559 i2c_del_driver(&tps65910_i2c_driver);
560}
561module_exit(tps65910_i2c_exit);
562
563MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
564MODULE_AUTHOR("Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>");
565MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
566MODULE_LICENSE("GPL");