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70c6cce0 QZ |
1 | /* |
2 | * Base driver for Marvell 88PM800 | |
3 | * | |
4 | * Copyright (C) 2012 Marvell International Ltd. | |
5 | * Haojian Zhuang <haojian.zhuang@marvell.com> | |
6 | * Joseph(Yossi) Hanin <yhanin@marvell.com> | |
7 | * Qiao Zhou <zhouqiao@marvell.com> | |
8 | * | |
9 | * This file is subject to the terms and conditions of the GNU General | |
10 | * Public License. See the file "COPYING" in the main directory of this | |
11 | * archive for more details. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | #include <linux/kernel.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/i2c.h> | |
26 | #include <linux/mfd/core.h> | |
27 | #include <linux/mfd/88pm80x.h> | |
28 | #include <linux/slab.h> | |
29 | ||
30 | #define PM800_CHIP_ID (0x00) | |
31 | ||
32 | /* Interrupt Registers */ | |
33 | #define PM800_INT_STATUS1 (0x05) | |
34 | #define PM800_ONKEY_INT_STS1 (1 << 0) | |
35 | #define PM800_EXTON_INT_STS1 (1 << 1) | |
36 | #define PM800_CHG_INT_STS1 (1 << 2) | |
37 | #define PM800_BAT_INT_STS1 (1 << 3) | |
38 | #define PM800_RTC_INT_STS1 (1 << 4) | |
39 | #define PM800_CLASSD_OC_INT_STS1 (1 << 5) | |
40 | ||
41 | #define PM800_INT_STATUS2 (0x06) | |
42 | #define PM800_VBAT_INT_STS2 (1 << 0) | |
43 | #define PM800_VSYS_INT_STS2 (1 << 1) | |
44 | #define PM800_VCHG_INT_STS2 (1 << 2) | |
45 | #define PM800_TINT_INT_STS2 (1 << 3) | |
46 | #define PM800_GPADC0_INT_STS2 (1 << 4) | |
47 | #define PM800_TBAT_INT_STS2 (1 << 5) | |
48 | #define PM800_GPADC2_INT_STS2 (1 << 6) | |
49 | #define PM800_GPADC3_INT_STS2 (1 << 7) | |
50 | ||
51 | #define PM800_INT_STATUS3 (0x07) | |
52 | ||
53 | #define PM800_INT_STATUS4 (0x08) | |
54 | #define PM800_GPIO0_INT_STS4 (1 << 0) | |
55 | #define PM800_GPIO1_INT_STS4 (1 << 1) | |
56 | #define PM800_GPIO2_INT_STS4 (1 << 2) | |
57 | #define PM800_GPIO3_INT_STS4 (1 << 3) | |
58 | #define PM800_GPIO4_INT_STS4 (1 << 4) | |
59 | ||
60 | #define PM800_INT_ENA_1 (0x09) | |
61 | #define PM800_ONKEY_INT_ENA1 (1 << 0) | |
62 | #define PM800_EXTON_INT_ENA1 (1 << 1) | |
63 | #define PM800_CHG_INT_ENA1 (1 << 2) | |
64 | #define PM800_BAT_INT_ENA1 (1 << 3) | |
65 | #define PM800_RTC_INT_ENA1 (1 << 4) | |
66 | #define PM800_CLASSD_OC_INT_ENA1 (1 << 5) | |
67 | ||
68 | #define PM800_INT_ENA_2 (0x0A) | |
69 | #define PM800_VBAT_INT_ENA2 (1 << 0) | |
70 | #define PM800_VSYS_INT_ENA2 (1 << 1) | |
71 | #define PM800_VCHG_INT_ENA2 (1 << 2) | |
72 | #define PM800_TINT_INT_ENA2 (1 << 3) | |
73 | ||
74 | #define PM800_INT_ENA_3 (0x0B) | |
75 | #define PM800_GPADC0_INT_ENA3 (1 << 0) | |
76 | #define PM800_GPADC1_INT_ENA3 (1 << 1) | |
77 | #define PM800_GPADC2_INT_ENA3 (1 << 2) | |
78 | #define PM800_GPADC3_INT_ENA3 (1 << 3) | |
79 | #define PM800_GPADC4_INT_ENA3 (1 << 4) | |
80 | ||
81 | #define PM800_INT_ENA_4 (0x0C) | |
82 | #define PM800_GPIO0_INT_ENA4 (1 << 0) | |
83 | #define PM800_GPIO1_INT_ENA4 (1 << 1) | |
84 | #define PM800_GPIO2_INT_ENA4 (1 << 2) | |
85 | #define PM800_GPIO3_INT_ENA4 (1 << 3) | |
86 | #define PM800_GPIO4_INT_ENA4 (1 << 4) | |
87 | ||
88 | /* number of INT_ENA & INT_STATUS regs */ | |
89 | #define PM800_INT_REG_NUM (4) | |
90 | ||
91 | /* Interrupt Number in 88PM800 */ | |
92 | enum { | |
93 | PM800_IRQ_ONKEY, /*EN1b0 *//*0 */ | |
94 | PM800_IRQ_EXTON, /*EN1b1 */ | |
95 | PM800_IRQ_CHG, /*EN1b2 */ | |
96 | PM800_IRQ_BAT, /*EN1b3 */ | |
97 | PM800_IRQ_RTC, /*EN1b4 */ | |
98 | PM800_IRQ_CLASSD, /*EN1b5 *//*5 */ | |
99 | PM800_IRQ_VBAT, /*EN2b0 */ | |
100 | PM800_IRQ_VSYS, /*EN2b1 */ | |
101 | PM800_IRQ_VCHG, /*EN2b2 */ | |
102 | PM800_IRQ_TINT, /*EN2b3 */ | |
103 | PM800_IRQ_GPADC0, /*EN3b0 *//*10 */ | |
104 | PM800_IRQ_GPADC1, /*EN3b1 */ | |
105 | PM800_IRQ_GPADC2, /*EN3b2 */ | |
106 | PM800_IRQ_GPADC3, /*EN3b3 */ | |
107 | PM800_IRQ_GPADC4, /*EN3b4 */ | |
108 | PM800_IRQ_GPIO0, /*EN4b0 *//*15 */ | |
109 | PM800_IRQ_GPIO1, /*EN4b1 */ | |
110 | PM800_IRQ_GPIO2, /*EN4b2 */ | |
111 | PM800_IRQ_GPIO3, /*EN4b3 */ | |
112 | PM800_IRQ_GPIO4, /*EN4b4 *//*19 */ | |
113 | PM800_MAX_IRQ, | |
114 | }; | |
115 | ||
116 | enum { | |
117 | /* Procida */ | |
118 | PM800_CHIP_A0 = 0x60, | |
119 | PM800_CHIP_A1 = 0x61, | |
120 | PM800_CHIP_B0 = 0x62, | |
121 | PM800_CHIP_C0 = 0x63, | |
122 | PM800_CHIP_END = PM800_CHIP_C0, | |
123 | ||
124 | /* Make sure to update this to the last stepping */ | |
125 | PM8XXX_CHIP_END = PM800_CHIP_END | |
126 | }; | |
127 | ||
128 | static const struct i2c_device_id pm80x_id_table[] = { | |
129 | {"88PM800", CHIP_PM800}, | |
31b3ffbd | 130 | {} /* NULL terminated */ |
70c6cce0 QZ |
131 | }; |
132 | MODULE_DEVICE_TABLE(i2c, pm80x_id_table); | |
133 | ||
134 | static struct resource rtc_resources[] = { | |
135 | { | |
136 | .name = "88pm80x-rtc", | |
137 | .start = PM800_IRQ_RTC, | |
138 | .end = PM800_IRQ_RTC, | |
139 | .flags = IORESOURCE_IRQ, | |
140 | }, | |
141 | }; | |
142 | ||
143 | static struct mfd_cell rtc_devs[] = { | |
144 | { | |
145 | .name = "88pm80x-rtc", | |
146 | .num_resources = ARRAY_SIZE(rtc_resources), | |
147 | .resources = &rtc_resources[0], | |
148 | .id = -1, | |
149 | }, | |
150 | }; | |
151 | ||
152 | static struct resource onkey_resources[] = { | |
153 | { | |
154 | .name = "88pm80x-onkey", | |
155 | .start = PM800_IRQ_ONKEY, | |
156 | .end = PM800_IRQ_ONKEY, | |
157 | .flags = IORESOURCE_IRQ, | |
158 | }, | |
159 | }; | |
160 | ||
161 | static struct mfd_cell onkey_devs[] = { | |
162 | { | |
163 | .name = "88pm80x-onkey", | |
164 | .num_resources = 1, | |
165 | .resources = &onkey_resources[0], | |
166 | .id = -1, | |
167 | }, | |
168 | }; | |
169 | ||
170 | static const struct regmap_irq pm800_irqs[] = { | |
171 | /* INT0 */ | |
172 | [PM800_IRQ_ONKEY] = { | |
173 | .mask = PM800_ONKEY_INT_ENA1, | |
174 | }, | |
175 | [PM800_IRQ_EXTON] = { | |
176 | .mask = PM800_EXTON_INT_ENA1, | |
177 | }, | |
178 | [PM800_IRQ_CHG] = { | |
179 | .mask = PM800_CHG_INT_ENA1, | |
180 | }, | |
181 | [PM800_IRQ_BAT] = { | |
182 | .mask = PM800_BAT_INT_ENA1, | |
183 | }, | |
184 | [PM800_IRQ_RTC] = { | |
185 | .mask = PM800_RTC_INT_ENA1, | |
186 | }, | |
187 | [PM800_IRQ_CLASSD] = { | |
188 | .mask = PM800_CLASSD_OC_INT_ENA1, | |
189 | }, | |
190 | /* INT1 */ | |
191 | [PM800_IRQ_VBAT] = { | |
192 | .reg_offset = 1, | |
193 | .mask = PM800_VBAT_INT_ENA2, | |
194 | }, | |
195 | [PM800_IRQ_VSYS] = { | |
196 | .reg_offset = 1, | |
197 | .mask = PM800_VSYS_INT_ENA2, | |
198 | }, | |
199 | [PM800_IRQ_VCHG] = { | |
200 | .reg_offset = 1, | |
201 | .mask = PM800_VCHG_INT_ENA2, | |
202 | }, | |
203 | [PM800_IRQ_TINT] = { | |
204 | .reg_offset = 1, | |
205 | .mask = PM800_TINT_INT_ENA2, | |
206 | }, | |
207 | /* INT2 */ | |
208 | [PM800_IRQ_GPADC0] = { | |
209 | .reg_offset = 2, | |
210 | .mask = PM800_GPADC0_INT_ENA3, | |
211 | }, | |
212 | [PM800_IRQ_GPADC1] = { | |
213 | .reg_offset = 2, | |
214 | .mask = PM800_GPADC1_INT_ENA3, | |
215 | }, | |
216 | [PM800_IRQ_GPADC2] = { | |
217 | .reg_offset = 2, | |
218 | .mask = PM800_GPADC2_INT_ENA3, | |
219 | }, | |
220 | [PM800_IRQ_GPADC3] = { | |
221 | .reg_offset = 2, | |
222 | .mask = PM800_GPADC3_INT_ENA3, | |
223 | }, | |
224 | [PM800_IRQ_GPADC4] = { | |
225 | .reg_offset = 2, | |
226 | .mask = PM800_GPADC4_INT_ENA3, | |
227 | }, | |
228 | /* INT3 */ | |
229 | [PM800_IRQ_GPIO0] = { | |
230 | .reg_offset = 3, | |
231 | .mask = PM800_GPIO0_INT_ENA4, | |
232 | }, | |
233 | [PM800_IRQ_GPIO1] = { | |
234 | .reg_offset = 3, | |
235 | .mask = PM800_GPIO1_INT_ENA4, | |
236 | }, | |
237 | [PM800_IRQ_GPIO2] = { | |
238 | .reg_offset = 3, | |
239 | .mask = PM800_GPIO2_INT_ENA4, | |
240 | }, | |
241 | [PM800_IRQ_GPIO3] = { | |
242 | .reg_offset = 3, | |
243 | .mask = PM800_GPIO3_INT_ENA4, | |
244 | }, | |
245 | [PM800_IRQ_GPIO4] = { | |
246 | .reg_offset = 3, | |
247 | .mask = PM800_GPIO4_INT_ENA4, | |
248 | }, | |
249 | }; | |
250 | ||
251 | static int __devinit device_gpadc_init(struct pm80x_chip *chip, | |
252 | struct pm80x_platform_data *pdata) | |
253 | { | |
254 | struct pm80x_subchip *subchip = chip->subchip; | |
255 | struct regmap *map = subchip->regmap_gpadc; | |
256 | int data = 0, mask = 0, ret = 0; | |
257 | ||
258 | if (!map) { | |
259 | dev_warn(chip->dev, | |
260 | "Warning: gpadc regmap is not available!\n"); | |
261 | return -EINVAL; | |
262 | } | |
263 | /* | |
264 | * initialize GPADC without activating it turn on GPADC | |
265 | * measurments | |
266 | */ | |
267 | ret = regmap_update_bits(map, | |
268 | PM800_GPADC_MISC_CONFIG2, | |
269 | PM800_GPADC_MISC_GPFSM_EN, | |
270 | PM800_GPADC_MISC_GPFSM_EN); | |
271 | if (ret < 0) | |
272 | goto out; | |
273 | /* | |
274 | * This function configures the ADC as requires for | |
275 | * CP implementation.CP does not "own" the ADC configuration | |
276 | * registers and relies on AP. | |
277 | * Reason: enable automatic ADC measurements needed | |
278 | * for CP to get VBAT and RF temperature readings. | |
279 | */ | |
280 | ret = regmap_update_bits(map, PM800_GPADC_MEAS_EN1, | |
281 | PM800_MEAS_EN1_VBAT, PM800_MEAS_EN1_VBAT); | |
282 | if (ret < 0) | |
283 | goto out; | |
284 | ret = regmap_update_bits(map, PM800_GPADC_MEAS_EN2, | |
285 | (PM800_MEAS_EN2_RFTMP | PM800_MEAS_GP0_EN), | |
286 | (PM800_MEAS_EN2_RFTMP | PM800_MEAS_GP0_EN)); | |
287 | if (ret < 0) | |
288 | goto out; | |
289 | ||
290 | /* | |
291 | * the defult of PM800 is GPADC operates at 100Ks/s rate | |
292 | * and Number of GPADC slots with active current bias prior | |
293 | * to GPADC sampling = 1 slot for all GPADCs set for | |
294 | * Temprature mesurmants | |
295 | */ | |
296 | mask = (PM800_GPADC_GP_BIAS_EN0 | PM800_GPADC_GP_BIAS_EN1 | | |
297 | PM800_GPADC_GP_BIAS_EN2 | PM800_GPADC_GP_BIAS_EN3); | |
298 | ||
299 | if (pdata && (pdata->batt_det == 0)) | |
300 | data = (PM800_GPADC_GP_BIAS_EN0 | PM800_GPADC_GP_BIAS_EN1 | | |
301 | PM800_GPADC_GP_BIAS_EN2 | PM800_GPADC_GP_BIAS_EN3); | |
302 | else | |
303 | data = (PM800_GPADC_GP_BIAS_EN0 | PM800_GPADC_GP_BIAS_EN2 | | |
304 | PM800_GPADC_GP_BIAS_EN3); | |
305 | ||
306 | ret = regmap_update_bits(map, PM800_GP_BIAS_ENA1, mask, data); | |
307 | if (ret < 0) | |
308 | goto out; | |
309 | ||
310 | dev_info(chip->dev, "pm800 device_gpadc_init: Done\n"); | |
311 | return 0; | |
312 | ||
313 | out: | |
314 | dev_info(chip->dev, "pm800 device_gpadc_init: Failed!\n"); | |
315 | return ret; | |
316 | } | |
317 | ||
318 | static int __devinit device_irq_init_800(struct pm80x_chip *chip) | |
319 | { | |
320 | struct regmap *map = chip->regmap; | |
321 | unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; | |
322 | int data, mask, ret = -EINVAL; | |
323 | ||
324 | if (!map || !chip->irq) { | |
325 | dev_err(chip->dev, "incorrect parameters\n"); | |
326 | return -EINVAL; | |
327 | } | |
328 | ||
329 | /* | |
330 | * irq_mode defines the way of clearing interrupt. it's read-clear by | |
331 | * default. | |
332 | */ | |
333 | mask = | |
334 | PM800_WAKEUP2_INV_INT | PM800_WAKEUP2_INT_CLEAR | | |
335 | PM800_WAKEUP2_INT_MASK; | |
336 | ||
337 | data = PM800_WAKEUP2_INT_CLEAR; | |
338 | ret = regmap_update_bits(map, PM800_WAKEUP2, mask, data); | |
339 | ||
340 | if (ret < 0) | |
341 | goto out; | |
342 | ||
343 | ret = | |
344 | regmap_add_irq_chip(chip->regmap, chip->irq, flags, -1, | |
345 | chip->regmap_irq_chip, &chip->irq_data); | |
346 | ||
347 | out: | |
348 | return ret; | |
349 | } | |
350 | ||
351 | static void device_irq_exit_800(struct pm80x_chip *chip) | |
352 | { | |
353 | regmap_del_irq_chip(chip->irq, chip->irq_data); | |
354 | } | |
355 | ||
356 | static struct regmap_irq_chip pm800_irq_chip = { | |
357 | .name = "88pm800", | |
358 | .irqs = pm800_irqs, | |
359 | .num_irqs = ARRAY_SIZE(pm800_irqs), | |
360 | ||
361 | .num_regs = 4, | |
362 | .status_base = PM800_INT_STATUS1, | |
363 | .mask_base = PM800_INT_ENA_1, | |
364 | .ack_base = PM800_INT_STATUS1, | |
365 | }; | |
366 | ||
367 | static int pm800_pages_init(struct pm80x_chip *chip) | |
368 | { | |
369 | struct pm80x_subchip *subchip; | |
370 | struct i2c_client *client = chip->client; | |
371 | ||
372 | subchip = chip->subchip; | |
373 | /* PM800 block power: i2c addr 0x31 */ | |
374 | if (subchip->power_page_addr) { | |
375 | subchip->power_page = | |
376 | i2c_new_dummy(client->adapter, subchip->power_page_addr); | |
377 | subchip->regmap_power = | |
378 | devm_regmap_init_i2c(subchip->power_page, | |
379 | &pm80x_regmap_config); | |
380 | i2c_set_clientdata(subchip->power_page, chip); | |
381 | } else | |
382 | dev_info(chip->dev, | |
383 | "PM800 block power 0x31: No power_page_addr\n"); | |
384 | ||
385 | /* PM800 block GPADC: i2c addr 0x32 */ | |
386 | if (subchip->gpadc_page_addr) { | |
387 | subchip->gpadc_page = i2c_new_dummy(client->adapter, | |
388 | subchip->gpadc_page_addr); | |
389 | subchip->regmap_gpadc = | |
390 | devm_regmap_init_i2c(subchip->gpadc_page, | |
391 | &pm80x_regmap_config); | |
392 | i2c_set_clientdata(subchip->gpadc_page, chip); | |
393 | } else | |
394 | dev_info(chip->dev, | |
395 | "PM800 block GPADC 0x32: No gpadc_page_addr\n"); | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | static void pm800_pages_exit(struct pm80x_chip *chip) | |
401 | { | |
402 | struct pm80x_subchip *subchip; | |
403 | ||
404 | regmap_exit(chip->regmap); | |
405 | i2c_unregister_device(chip->client); | |
406 | ||
407 | subchip = chip->subchip; | |
408 | if (subchip->power_page) { | |
409 | regmap_exit(subchip->regmap_power); | |
410 | i2c_unregister_device(subchip->power_page); | |
411 | } | |
412 | if (subchip->gpadc_page) { | |
413 | regmap_exit(subchip->regmap_gpadc); | |
414 | i2c_unregister_device(subchip->gpadc_page); | |
415 | } | |
416 | } | |
417 | ||
418 | static int __devinit device_800_init(struct pm80x_chip *chip, | |
419 | struct pm80x_platform_data *pdata) | |
420 | { | |
421 | int ret, pmic_id; | |
46b65a8f | 422 | unsigned int val; |
70c6cce0 | 423 | |
46b65a8f | 424 | ret = regmap_read(chip->regmap, PM800_CHIP_ID, &val); |
70c6cce0 QZ |
425 | if (ret < 0) { |
426 | dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); | |
427 | goto out; | |
428 | } | |
429 | ||
46b65a8f | 430 | pmic_id = val & PM80X_VERSION_MASK; |
70c6cce0 QZ |
431 | |
432 | if ((pmic_id >= PM800_CHIP_A0) && (pmic_id <= PM800_CHIP_END)) { | |
46b65a8f | 433 | chip->version = val; |
70c6cce0 | 434 | dev_info(chip->dev, |
46b65a8f | 435 | "88PM80x:Marvell 88PM800 (ID:0x%x) detected\n", val); |
70c6cce0 QZ |
436 | } else { |
437 | dev_err(chip->dev, | |
46b65a8f AL |
438 | "Failed to detect Marvell 88PM800:ChipID[0x%x]\n", val); |
439 | ret = -EINVAL; | |
70c6cce0 QZ |
440 | goto out; |
441 | } | |
442 | ||
443 | /* | |
444 | * alarm wake up bit will be clear in device_irq_init(), | |
445 | * read before that | |
446 | */ | |
46b65a8f | 447 | ret = regmap_read(chip->regmap, PM800_RTC_CONTROL, &val); |
70c6cce0 QZ |
448 | if (ret < 0) { |
449 | dev_err(chip->dev, "Failed to read RTC register: %d\n", ret); | |
450 | goto out; | |
451 | } | |
46b65a8f | 452 | if (val & PM800_ALARM_WAKEUP) { |
70c6cce0 QZ |
453 | if (pdata && pdata->rtc) |
454 | pdata->rtc->rtc_wakeup = 1; | |
455 | } | |
456 | ||
457 | ret = device_gpadc_init(chip, pdata); | |
458 | if (ret < 0) { | |
459 | dev_err(chip->dev, "[%s]Failed to init gpadc\n", __func__); | |
460 | goto out; | |
461 | } | |
462 | ||
463 | chip->regmap_irq_chip = &pm800_irq_chip; | |
464 | ||
465 | ret = device_irq_init_800(chip); | |
466 | if (ret < 0) { | |
467 | dev_err(chip->dev, "[%s]Failed to init pm800 irq\n", __func__); | |
468 | goto out; | |
469 | } | |
470 | ||
471 | ret = | |
472 | mfd_add_devices(chip->dev, 0, &onkey_devs[0], | |
0848c94f MB |
473 | ARRAY_SIZE(onkey_devs), &onkey_resources[0], 0, |
474 | NULL); | |
70c6cce0 QZ |
475 | if (ret < 0) { |
476 | dev_err(chip->dev, "Failed to add onkey subdev\n"); | |
477 | goto out_dev; | |
478 | } else | |
479 | dev_info(chip->dev, "[%s]:Added mfd onkey_devs\n", __func__); | |
480 | ||
481 | if (pdata && pdata->rtc) { | |
482 | rtc_devs[0].platform_data = pdata->rtc; | |
483 | rtc_devs[0].pdata_size = sizeof(struct pm80x_rtc_pdata); | |
484 | ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], | |
0848c94f | 485 | ARRAY_SIZE(rtc_devs), NULL, 0, NULL); |
70c6cce0 QZ |
486 | if (ret < 0) { |
487 | dev_err(chip->dev, "Failed to add rtc subdev\n"); | |
488 | goto out_dev; | |
489 | } else | |
490 | dev_info(chip->dev, | |
491 | "[%s]:Added mfd rtc_devs\n", __func__); | |
492 | } | |
493 | ||
494 | return 0; | |
495 | out_dev: | |
496 | mfd_remove_devices(chip->dev); | |
497 | device_irq_exit_800(chip); | |
498 | out: | |
499 | return ret; | |
500 | } | |
501 | ||
502 | static int __devinit pm800_probe(struct i2c_client *client, | |
503 | const struct i2c_device_id *id) | |
504 | { | |
505 | int ret = 0; | |
506 | struct pm80x_chip *chip; | |
507 | struct pm80x_platform_data *pdata = client->dev.platform_data; | |
508 | struct pm80x_subchip *subchip; | |
509 | ||
510 | ret = pm80x_init(client, id); | |
511 | if (ret) { | |
512 | dev_err(&client->dev, "pm800_init fail\n"); | |
513 | goto out_init; | |
514 | } | |
515 | ||
516 | chip = i2c_get_clientdata(client); | |
517 | ||
518 | /* init subchip for PM800 */ | |
519 | subchip = | |
520 | devm_kzalloc(&client->dev, sizeof(struct pm80x_subchip), | |
521 | GFP_KERNEL); | |
522 | if (!subchip) { | |
523 | ret = -ENOMEM; | |
524 | goto err_subchip_alloc; | |
525 | } | |
526 | ||
527 | subchip->power_page_addr = pdata->power_page_addr; | |
528 | subchip->gpadc_page_addr = pdata->gpadc_page_addr; | |
529 | chip->subchip = subchip; | |
530 | ||
531 | ret = device_800_init(chip, pdata); | |
532 | if (ret) { | |
533 | dev_err(chip->dev, "%s id 0x%x failed!\n", __func__, chip->id); | |
534 | goto err_800_init; | |
535 | } | |
536 | ||
537 | ret = pm800_pages_init(chip); | |
538 | if (ret) { | |
539 | dev_err(&client->dev, "pm800_pages_init failed!\n"); | |
540 | goto err_page_init; | |
541 | } | |
542 | ||
543 | if (pdata->plat_config) | |
544 | pdata->plat_config(chip, pdata); | |
545 | ||
546 | err_page_init: | |
547 | mfd_remove_devices(chip->dev); | |
548 | device_irq_exit_800(chip); | |
549 | err_800_init: | |
550 | devm_kfree(&client->dev, subchip); | |
551 | err_subchip_alloc: | |
552 | pm80x_deinit(client); | |
553 | out_init: | |
554 | return ret; | |
555 | } | |
556 | ||
557 | static int __devexit pm800_remove(struct i2c_client *client) | |
558 | { | |
559 | struct pm80x_chip *chip = i2c_get_clientdata(client); | |
560 | ||
561 | mfd_remove_devices(chip->dev); | |
562 | device_irq_exit_800(chip); | |
563 | ||
564 | pm800_pages_exit(chip); | |
565 | devm_kfree(&client->dev, chip->subchip); | |
566 | ||
567 | pm80x_deinit(client); | |
568 | ||
569 | return 0; | |
570 | } | |
571 | ||
572 | static struct i2c_driver pm800_driver = { | |
573 | .driver = { | |
574 | .name = "88PM80X", | |
575 | .owner = THIS_MODULE, | |
576 | .pm = &pm80x_pm_ops, | |
577 | }, | |
578 | .probe = pm800_probe, | |
579 | .remove = __devexit_p(pm800_remove), | |
580 | .id_table = pm80x_id_table, | |
581 | }; | |
582 | ||
583 | static int __init pm800_i2c_init(void) | |
584 | { | |
585 | return i2c_add_driver(&pm800_driver); | |
586 | } | |
587 | subsys_initcall(pm800_i2c_init); | |
588 | ||
589 | static void __exit pm800_i2c_exit(void) | |
590 | { | |
591 | i2c_del_driver(&pm800_driver); | |
592 | } | |
593 | module_exit(pm800_i2c_exit); | |
594 | ||
595 | MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM800"); | |
596 | MODULE_AUTHOR("Qiao Zhou <zhouqiao@marvell.com>"); | |
597 | MODULE_LICENSE("GPL"); |