blob: 8263605f6d2fa2b76eb36b4f1589eb5dba6b8b0b [file] [log] [blame]
Graeme Gregory27c67502011-05-02 16:19:46 -05001/*
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>
Laxman Dewangandc9913a2012-02-21 18:21:34 +053019#include <linux/err.h>
Graeme Gregory27c67502011-05-02 16:19:46 -050020#include <linux/slab.h>
21#include <linux/i2c.h>
Laxman Dewangan4aab3fa2012-11-13 19:33:58 +053022#include <linux/interrupt.h>
23#include <linux/irq.h>
24#include <linux/irqdomain.h>
Graeme Gregory27c67502011-05-02 16:19:46 -050025#include <linux/mfd/core.h>
Laxman Dewangandc9913a2012-02-21 18:21:34 +053026#include <linux/regmap.h>
Graeme Gregory27c67502011-05-02 16:19:46 -050027#include <linux/mfd/tps65910.h>
Sachin Kamat1fead3f2013-10-16 14:26:55 +053028#include <linux/of.h>
Rhyland Kleincd4209c2012-05-11 11:36:26 +020029#include <linux/of_device.h>
Graeme Gregory27c67502011-05-02 16:19:46 -050030
Venu Byravarasu5863eab2012-09-21 16:25:36 +053031static struct resource rtc_resources[] = {
32 {
33 .start = TPS65910_IRQ_RTC_ALARM,
34 .end = TPS65910_IRQ_RTC_ALARM,
35 .flags = IORESOURCE_IRQ,
36 }
37};
38
Geert Uytterhoeven30fe2b52013-11-18 14:33:02 +010039static const struct mfd_cell tps65910s[] = {
Graeme Gregory27c67502011-05-02 16:19:46 -050040 {
Laxman Dewangan32df9862012-05-11 15:07:44 +020041 .name = "tps65910-gpio",
42 },
43 {
Graeme Gregory27c67502011-05-02 16:19:46 -050044 .name = "tps65910-pmic",
45 },
46 {
47 .name = "tps65910-rtc",
Venu Byravarasu5863eab2012-09-21 16:25:36 +053048 .num_resources = ARRAY_SIZE(rtc_resources),
49 .resources = &rtc_resources[0],
Graeme Gregory27c67502011-05-02 16:19:46 -050050 },
51 {
52 .name = "tps65910-power",
53 },
54};
55
56
Laxman Dewangan4aab3fa2012-11-13 19:33:58 +053057static 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,
Kim, Milo0582c0f2012-11-29 06:42:12 +0000215 .ack_base = TPS65910_INT_STS,
Laxman Dewangan4aab3fa2012-11-13 19:33:58 +0530216};
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,
Kim, Milo0582c0f2012-11-29 06:42:12 +0000226 .ack_base = TPS65910_INT_STS,
Laxman Dewangan4aab3fa2012-11-13 19:33:58 +0530227};
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;
Laxman Dewangan6167c5b2016-04-21 17:55:57 +0530255 ret = devm_regmap_add_irq_chip(tps65910->dev, tps65910->regmap,
256 tps65910->chip_irq,
257 IRQF_ONESHOT, pdata->irq_base,
258 tps6591x_irqs_chip, &tps65910->irq_data);
Krzysztof Kozlowski483e2df2014-03-12 16:50:44 +0100259 if (ret < 0) {
Laxman Dewangan4aab3fa2012-11-13 19:33:58 +0530260 dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret);
Krzysztof Kozlowski483e2df2014-03-12 16:50:44 +0100261 tps65910->chip_irq = 0;
262 }
Laxman Dewangan4aab3fa2012-11-13 19:33:58 +0530263 return ret;
264}
265
Laxman Dewangandc9913a2012-02-21 18:21:34 +0530266static bool is_volatile_reg(struct device *dev, unsigned int reg)
267{
268 struct tps65910 *tps65910 = dev_get_drvdata(dev);
269
270 /*
271 * Caching all regulator registers.
272 * All regualator register address range is same for
273 * TPS65910 and TPS65911
274 */
275 if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
276 /* Check for non-existing register */
277 if (tps65910_chip_id(tps65910) == TPS65910)
278 if ((reg == TPS65911_VDDCTRL_OP) ||
279 (reg == TPS65911_VDDCTRL_SR))
280 return true;
281 return false;
282 }
283 return true;
284}
285
Laxman Dewangan39ecb032012-03-07 18:46:05 +0530286static const struct regmap_config tps65910_regmap_config = {
Laxman Dewangandc9913a2012-02-21 18:21:34 +0530287 .reg_bits = 8,
288 .val_bits = 8,
289 .volatile_reg = is_volatile_reg,
Laxman Dewangan3bf6bf92012-05-09 18:40:54 +0530290 .max_register = TPS65910_MAX_REGISTER - 1,
Laxman Dewangandc9913a2012-02-21 18:21:34 +0530291 .cache_type = REGCACHE_RBTREE,
292};
293
Bill Pembertonf791be42012-11-19 13:23:04 -0500294static int tps65910_ck32k_init(struct tps65910 *tps65910,
Johan Hovold712db992012-06-28 12:20:21 +0200295 struct tps65910_board *pmic_pdata)
296{
Johan Hovold712db992012-06-28 12:20:21 +0200297 int ret;
298
Johan Hovoldd02e83c2012-07-11 15:44:33 +0200299 if (!pmic_pdata->en_ck32k_xtal)
300 return 0;
301
302 ret = tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
Johan Hovold712db992012-06-28 12:20:21 +0200303 DEVCTRL_CK32K_CTRL_MASK);
Johan Hovoldd02e83c2012-07-11 15:44:33 +0200304 if (ret < 0) {
305 dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
306 return ret;
Johan Hovold712db992012-06-28 12:20:21 +0200307 }
308
309 return 0;
310}
311
Bill Pembertonf791be42012-11-19 13:23:04 -0500312static int tps65910_sleepinit(struct tps65910 *tps65910,
Laxman Dewangan201cf052012-04-18 12:13:51 +0200313 struct tps65910_board *pmic_pdata)
314{
315 struct device *dev = NULL;
316 int ret = 0;
317
318 dev = tps65910->dev;
319
320 if (!pmic_pdata->en_dev_slp)
321 return 0;
322
323 /* enabling SLEEP device state */
Rhyland Klein3f7e8272012-05-08 11:42:38 -0700324 ret = tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
Laxman Dewangan201cf052012-04-18 12:13:51 +0200325 DEVCTRL_DEV_SLP_MASK);
326 if (ret < 0) {
327 dev_err(dev, "set dev_slp failed: %d\n", ret);
328 goto err_sleep_init;
329 }
330
Michał Mirosława9bc67d2017-06-14 21:04:14 +0200331 if (pmic_pdata->slp_keepon.therm_keepon) {
Rhyland Klein3f7e8272012-05-08 11:42:38 -0700332 ret = tps65910_reg_set_bits(tps65910,
333 TPS65910_SLEEP_KEEP_RES_ON,
Laxman Dewangan201cf052012-04-18 12:13:51 +0200334 SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
335 if (ret < 0) {
336 dev_err(dev, "set therm_keepon failed: %d\n", ret);
337 goto disable_dev_slp;
338 }
339 }
340
Michał Mirosława9bc67d2017-06-14 21:04:14 +0200341 if (pmic_pdata->slp_keepon.clkout32k_keepon) {
Rhyland Klein3f7e8272012-05-08 11:42:38 -0700342 ret = tps65910_reg_set_bits(tps65910,
343 TPS65910_SLEEP_KEEP_RES_ON,
Laxman Dewangan201cf052012-04-18 12:13:51 +0200344 SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
345 if (ret < 0) {
346 dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
347 goto disable_dev_slp;
348 }
349 }
350
Michał Mirosława9bc67d2017-06-14 21:04:14 +0200351 if (pmic_pdata->slp_keepon.i2chs_keepon) {
Rhyland Klein3f7e8272012-05-08 11:42:38 -0700352 ret = tps65910_reg_set_bits(tps65910,
353 TPS65910_SLEEP_KEEP_RES_ON,
Laxman Dewangan201cf052012-04-18 12:13:51 +0200354 SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
355 if (ret < 0) {
356 dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
357 goto disable_dev_slp;
358 }
359 }
360
361 return 0;
362
363disable_dev_slp:
Rhyland Klein3f7e8272012-05-08 11:42:38 -0700364 tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
365 DEVCTRL_DEV_SLP_MASK);
Laxman Dewangan201cf052012-04-18 12:13:51 +0200366
367err_sleep_init:
368 return ret;
369}
370
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200371#ifdef CONFIG_OF
Jingoo Hanc0dfbfe2014-05-07 17:15:48 +0900372static const struct of_device_id tps65910_of_match[] = {
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200373 { .compatible = "ti,tps65910", .data = (void *)TPS65910},
374 { .compatible = "ti,tps65911", .data = (void *)TPS65911},
375 { },
376};
377MODULE_DEVICE_TABLE(of, tps65910_of_match);
378
379static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
Lee Jones01a0f4a2014-07-02 14:34:13 +0100380 unsigned long *chip_id)
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200381{
382 struct device_node *np = client->dev.of_node;
383 struct tps65910_board *board_info;
384 unsigned int prop;
385 const struct of_device_id *match;
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200386 int ret = 0;
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200387
388 match = of_match_device(tps65910_of_match, &client->dev);
389 if (!match) {
390 dev_err(&client->dev, "Failed to find matching dt id\n");
391 return NULL;
392 }
393
Lee Jones01a0f4a2014-07-02 14:34:13 +0100394 *chip_id = (unsigned long)match->data;
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200395
396 board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
397 GFP_KERNEL);
398 if (!board_info) {
399 dev_err(&client->dev, "Failed to allocate pdata\n");
400 return NULL;
401 }
402
403 ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
404 if (!ret)
405 board_info->vmbch_threshold = prop;
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200406
407 ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
408 if (!ret)
409 board_info->vmbch2_threshold = prop;
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200410
Johan Hovoldbcc1dd42012-06-28 12:20:22 +0200411 prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
412 board_info->en_ck32k_xtal = prop;
413
Michał Mirosława9bc67d2017-06-14 21:04:14 +0200414 prop = of_property_read_bool(np, "ti,sleep-enable");
415 board_info->en_dev_slp = prop;
416
417 prop = of_property_read_bool(np, "ti,sleep-keep-therm");
418 board_info->slp_keepon.therm_keepon = prop;
419
420 prop = of_property_read_bool(np, "ti,sleep-keep-ck32k");
421 board_info->slp_keepon.clkout32k_keepon = prop;
422
423 prop = of_property_read_bool(np, "ti,sleep-keep-hsclk");
424 board_info->slp_keepon.i2chs_keepon = prop;
425
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200426 board_info->irq = client->irq;
427 board_info->irq_base = -1;
Bill Huangb079fa722012-08-19 18:07:56 -0700428 board_info->pm_off = of_property_read_bool(np,
429 "ti,system-power-controller");
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200430
431 return board_info;
432}
433#else
Samuel Ortiz7f65f742012-05-11 15:10:28 +0200434static inline
435struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
Lee Jones01a0f4a2014-07-02 14:34:13 +0100436 unsigned long *chip_id)
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200437{
438 return NULL;
439}
440#endif
Laxman Dewangan201cf052012-04-18 12:13:51 +0200441
Bill Huangb079fa722012-08-19 18:07:56 -0700442static struct i2c_client *tps65910_i2c_client;
443static void tps65910_power_off(void)
444{
445 struct tps65910 *tps65910;
446
447 tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
448
449 if (tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
450 DEVCTRL_PWR_OFF_MASK) < 0)
451 return;
452
453 tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
454 DEVCTRL_DEV_ON_MASK);
455}
456
Bill Pembertonf791be42012-11-19 13:23:04 -0500457static int tps65910_i2c_probe(struct i2c_client *i2c,
Lee Jones01a0f4a2014-07-02 14:34:13 +0100458 const struct i2c_device_id *id)
Graeme Gregory27c67502011-05-02 16:19:46 -0500459{
460 struct tps65910 *tps65910;
Graeme Gregory2537df72011-05-02 16:19:52 -0500461 struct tps65910_board *pmic_plat_data;
Laxman Dewangancb8d8652012-05-19 02:01:41 +0530462 struct tps65910_board *of_pmic_plat_data = NULL;
Graeme Gregorye3471bd2011-05-02 16:20:04 -0500463 struct tps65910_platform_data *init_data;
Lee Jones01a0f4a2014-07-02 14:34:13 +0100464 unsigned long chip_id = id->driver_data;
Graeme Gregory27c67502011-05-02 16:19:46 -0500465 int ret = 0;
466
Graeme Gregory2537df72011-05-02 16:19:52 -0500467 pmic_plat_data = dev_get_platdata(&i2c->dev);
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200468
Laxman Dewangancb8d8652012-05-19 02:01:41 +0530469 if (!pmic_plat_data && i2c->dev.of_node) {
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200470 pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
Laxman Dewangancb8d8652012-05-19 02:01:41 +0530471 of_pmic_plat_data = pmic_plat_data;
472 }
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200473
Graeme Gregory2537df72011-05-02 16:19:52 -0500474 if (!pmic_plat_data)
475 return -EINVAL;
476
Laxman Dewangan63fe7de2012-05-11 12:36:57 +0200477 init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
Graeme Gregorye3471bd2011-05-02 16:20:04 -0500478 if (init_data == NULL)
479 return -ENOMEM;
480
Laxman Dewangan63fe7de2012-05-11 12:36:57 +0200481 tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
482 if (tps65910 == NULL)
Graeme Gregory27c67502011-05-02 16:19:46 -0500483 return -ENOMEM;
484
Laxman Dewangancb8d8652012-05-19 02:01:41 +0530485 tps65910->of_plat_data = of_pmic_plat_data;
Graeme Gregory27c67502011-05-02 16:19:46 -0500486 i2c_set_clientdata(i2c, tps65910);
487 tps65910->dev = &i2c->dev;
488 tps65910->i2c_client = i2c;
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200489 tps65910->id = chip_id;
Graeme Gregory27c67502011-05-02 16:19:46 -0500490
Arnout Vandecappelle (Essensium/Mind)be1c7702014-08-22 17:30:56 +0200491 /* Work around silicon erratum SWCZ010: the tps65910 may miss the
492 * first I2C transfer. So issue a dummy transfer before the first
493 * real transfer.
494 */
495 i2c_master_send(i2c, "", 1);
Laxman Dewangan63fe7de2012-05-11 12:36:57 +0200496 tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
Laxman Dewangandc9913a2012-02-21 18:21:34 +0530497 if (IS_ERR(tps65910->regmap)) {
498 ret = PTR_ERR(tps65910->regmap);
499 dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
Laxman Dewangan63fe7de2012-05-11 12:36:57 +0200500 return ret;
Laxman Dewangandc9913a2012-02-21 18:21:34 +0530501 }
502
Jesper Juhlb1224cd2011-07-13 23:22:26 +0200503 init_data->irq = pmic_plat_data->irq;
Laxman Dewangan17731402012-01-18 20:19:16 +0530504 init_data->irq_base = pmic_plat_data->irq_base;
Jesper Juhlb1224cd2011-07-13 23:22:26 +0200505
Afzal Mohammed1e351a92011-12-14 16:05:35 +0530506 tps65910_irq_init(tps65910, init_data->irq, init_data);
Johan Hovoldd02e83c2012-07-11 15:44:33 +0200507 tps65910_ck32k_init(tps65910, pmic_plat_data);
Laxman Dewangan201cf052012-04-18 12:13:51 +0200508 tps65910_sleepinit(tps65910, pmic_plat_data);
509
Bill Huangb079fa722012-08-19 18:07:56 -0700510 if (pmic_plat_data->pm_off && !pm_power_off) {
511 tps65910_i2c_client = i2c;
512 pm_power_off = tps65910_power_off;
513 }
514
Laxman Dewanganf3466e72016-04-08 00:13:13 +0530515 ret = devm_mfd_add_devices(tps65910->dev, -1,
516 tps65910s, ARRAY_SIZE(tps65910s),
517 NULL, 0,
518 regmap_irq_get_domain(tps65910->irq_data));
Laxman Dewangan10ecb802012-11-13 19:33:56 +0530519 if (ret < 0) {
520 dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
521 return ret;
522 }
523
Graeme Gregory27c67502011-05-02 16:19:46 -0500524 return ret;
525}
526
Graeme Gregory27c67502011-05-02 16:19:46 -0500527static const struct i2c_device_id tps65910_i2c_id[] = {
Jorge Eduardo Candelaria79557052011-05-16 18:34:59 -0500528 { "tps65910", TPS65910 },
529 { "tps65911", TPS65911 },
Graeme Gregory27c67502011-05-02 16:19:46 -0500530 { }
531};
532MODULE_DEVICE_TABLE(i2c, tps65910_i2c_id);
533
534
535static struct i2c_driver tps65910_i2c_driver = {
536 .driver = {
537 .name = "tps65910",
Rhyland Kleincd4209c2012-05-11 11:36:26 +0200538 .of_match_table = of_match_ptr(tps65910_of_match),
Graeme Gregory27c67502011-05-02 16:19:46 -0500539 },
540 .probe = tps65910_i2c_probe,
Graeme Gregory27c67502011-05-02 16:19:46 -0500541 .id_table = tps65910_i2c_id,
542};
543
544static int __init tps65910_i2c_init(void)
545{
546 return i2c_add_driver(&tps65910_i2c_driver);
547}
548/* init early so consumer devices can complete system boot */
549subsys_initcall(tps65910_i2c_init);
550
551static void __exit tps65910_i2c_exit(void)
552{
553 i2c_del_driver(&tps65910_i2c_driver);
554}
555module_exit(tps65910_i2c_exit);
556
557MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
558MODULE_AUTHOR("Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>");
559MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
560MODULE_LICENSE("GPL");