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Haojian Zhuangbbd51b12010-01-06 17:04:18 -05001/*
2 * Base driver for Marvell 88PM8607
3 *
4 * Copyright (C) 2009 Marvell International Ltd.
5 * Haojian Zhuang <haojian.zhuang@marvell.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/kernel.h>
13#include <linux/module.h>
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -050014#include <linux/i2c.h>
Haojian Zhuang2afa62e2010-02-08 05:02:00 -050015#include <linux/irq.h>
Haojian Zhuangbbd51b12010-01-06 17:04:18 -050016#include <linux/interrupt.h>
17#include <linux/platform_device.h>
18#include <linux/mfd/core.h>
Haojian Zhuang53dbab72010-01-08 06:01:24 -050019#include <linux/mfd/88pm860x.h>
Haojian Zhuang22aad002011-03-07 23:43:11 +080020#include <linux/regulator/machine.h>
Haojian Zhuangbbd51b12010-01-06 17:04:18 -050021
Haojian Zhuang2afa62e2010-02-08 05:02:00 -050022#define INT_STATUS_NUM 3
23
Haojian Zhuanga5156f12011-04-26 11:06:22 +020024static struct resource bk_resources[] __devinitdata = {
Haojian Zhuangadb70482011-03-07 23:43:09 +080025 {PM8606_BACKLIGHT1, PM8606_BACKLIGHT1, "backlight-0", IORESOURCE_IO,},
26 {PM8606_BACKLIGHT2, PM8606_BACKLIGHT2, "backlight-1", IORESOURCE_IO,},
27 {PM8606_BACKLIGHT3, PM8606_BACKLIGHT3, "backlight-2", IORESOURCE_IO,},
Haojian Zhuanga16122b2009-12-15 16:04:36 -050028};
Haojian Zhuangadb70482011-03-07 23:43:09 +080029
Haojian Zhuanga5156f12011-04-26 11:06:22 +020030static struct resource led_resources[] __devinitdata = {
Haojian Zhuang3154c342011-03-07 23:43:10 +080031 {PM8606_LED1_RED, PM8606_LED1_RED, "led0-red", IORESOURCE_IO,},
32 {PM8606_LED1_GREEN, PM8606_LED1_GREEN, "led0-green", IORESOURCE_IO,},
33 {PM8606_LED1_BLUE, PM8606_LED1_BLUE, "led0-blue", IORESOURCE_IO,},
34 {PM8606_LED2_RED, PM8606_LED2_RED, "led1-red", IORESOURCE_IO,},
35 {PM8606_LED2_GREEN, PM8606_LED2_GREEN, "led1-green", IORESOURCE_IO,},
36 {PM8606_LED2_BLUE, PM8606_LED2_BLUE, "led1-blue", IORESOURCE_IO,},
37};
38
Haojian Zhuanga5156f12011-04-26 11:06:22 +020039static struct resource regulator_resources[] __devinitdata = {
Haojian Zhuang22aad002011-03-07 23:43:11 +080040 {PM8607_ID_BUCK1, PM8607_ID_BUCK1, "buck-1", IORESOURCE_IO,},
41 {PM8607_ID_BUCK2, PM8607_ID_BUCK2, "buck-2", IORESOURCE_IO,},
42 {PM8607_ID_BUCK3, PM8607_ID_BUCK3, "buck-3", IORESOURCE_IO,},
43 {PM8607_ID_LDO1, PM8607_ID_LDO1, "ldo-01", IORESOURCE_IO,},
44 {PM8607_ID_LDO2, PM8607_ID_LDO2, "ldo-02", IORESOURCE_IO,},
45 {PM8607_ID_LDO3, PM8607_ID_LDO3, "ldo-03", IORESOURCE_IO,},
46 {PM8607_ID_LDO4, PM8607_ID_LDO4, "ldo-04", IORESOURCE_IO,},
47 {PM8607_ID_LDO5, PM8607_ID_LDO5, "ldo-05", IORESOURCE_IO,},
48 {PM8607_ID_LDO6, PM8607_ID_LDO6, "ldo-06", IORESOURCE_IO,},
49 {PM8607_ID_LDO7, PM8607_ID_LDO7, "ldo-07", IORESOURCE_IO,},
50 {PM8607_ID_LDO8, PM8607_ID_LDO8, "ldo-08", IORESOURCE_IO,},
51 {PM8607_ID_LDO9, PM8607_ID_LDO9, "ldo-09", IORESOURCE_IO,},
52 {PM8607_ID_LDO10, PM8607_ID_LDO10, "ldo-10", IORESOURCE_IO,},
53 {PM8607_ID_LDO11, PM8607_ID_LDO11, "ldo-11", IORESOURCE_IO,},
54 {PM8607_ID_LDO12, PM8607_ID_LDO12, "ldo-12", IORESOURCE_IO,},
55 {PM8607_ID_LDO13, PM8607_ID_LDO13, "ldo-13", IORESOURCE_IO,},
56 {PM8607_ID_LDO14, PM8607_ID_LDO14, "ldo-14", IORESOURCE_IO,},
57 {PM8607_ID_LDO15, PM8607_ID_LDO15, "ldo-15", IORESOURCE_IO,},
58};
59
Haojian Zhuanga5156f12011-04-26 11:06:22 +020060static struct resource touch_resources[] __devinitdata = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +080061 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,},
62};
63
Haojian Zhuanga5156f12011-04-26 11:06:22 +020064static struct resource onkey_resources[] __devinitdata = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +080065 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,},
66};
67
Haojian Zhuanga5156f12011-04-26 11:06:22 +020068static struct resource codec_resources[] __devinitdata = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +080069 /* Headset microphone insertion or removal */
70 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,},
71 /* Hook-switch press or release */
72 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,},
73 /* Headset insertion or removal */
74 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,},
75 /* Audio short */
76 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", IORESOURCE_IRQ,},
77};
78
Haojian Zhuanga5156f12011-04-26 11:06:22 +020079static struct resource battery_resources[] __devinitdata = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +080080 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,},
81 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,},
82};
83
Haojian Zhuanga5156f12011-04-26 11:06:22 +020084static struct resource charger_resources[] __devinitdata = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +080085 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,},
86 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", IORESOURCE_IRQ,},
87 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging timeout", IORESOURCE_IRQ,},
88 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", IORESOURCE_IRQ,},
89 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,},
90 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,},
91};
92
Haojian Zhuang008b3042011-05-06 17:21:20 +080093static struct resource rtc_resources[] __devinitdata = {
94 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
95};
96
Haojian Zhuanga5156f12011-04-26 11:06:22 +020097static struct mfd_cell bk_devs[] = {
Haojian Zhuangadb70482011-03-07 23:43:09 +080098 {"88pm860x-backlight", 0,},
99 {"88pm860x-backlight", 1,},
100 {"88pm860x-backlight", 2,},
101};
102
Haojian Zhuanga5156f12011-04-26 11:06:22 +0200103static struct mfd_cell led_devs[] = {
Haojian Zhuang3154c342011-03-07 23:43:10 +0800104 {"88pm860x-led", 0,},
105 {"88pm860x-led", 1,},
106 {"88pm860x-led", 2,},
107 {"88pm860x-led", 3,},
108 {"88pm860x-led", 4,},
109 {"88pm860x-led", 5,},
110};
111
Haojian Zhuanga5156f12011-04-26 11:06:22 +0200112static struct mfd_cell regulator_devs[] = {
Haojian Zhuang22aad002011-03-07 23:43:11 +0800113 {"88pm860x-regulator", 0,},
114 {"88pm860x-regulator", 1,},
115 {"88pm860x-regulator", 2,},
116 {"88pm860x-regulator", 3,},
117 {"88pm860x-regulator", 4,},
118 {"88pm860x-regulator", 5,},
119 {"88pm860x-regulator", 6,},
120 {"88pm860x-regulator", 7,},
121 {"88pm860x-regulator", 8,},
122 {"88pm860x-regulator", 9,},
123 {"88pm860x-regulator", 10,},
124 {"88pm860x-regulator", 11,},
125 {"88pm860x-regulator", 12,},
126 {"88pm860x-regulator", 13,},
127 {"88pm860x-regulator", 14,},
128 {"88pm860x-regulator", 15,},
129 {"88pm860x-regulator", 16,},
130 {"88pm860x-regulator", 17,},
131};
132
Haojian Zhuanga5156f12011-04-26 11:06:22 +0200133static struct mfd_cell touch_devs[] = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800134 {"88pm860x-touch", -1,},
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500135};
136
Haojian Zhuanga5156f12011-04-26 11:06:22 +0200137static struct mfd_cell onkey_devs[] = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800138 {"88pm860x-onkey", -1,},
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500139};
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500140
Haojian Zhuanga5156f12011-04-26 11:06:22 +0200141static struct mfd_cell codec_devs[] = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800142 {"88pm860x-codec", -1,},
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500143};
144
145static struct mfd_cell power_devs[] = {
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800146 {"88pm860x-battery", -1,},
147 {"88pm860x-charger", -1,},
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500148};
149
Haojian Zhuang008b3042011-05-06 17:21:20 +0800150static struct mfd_cell rtc_devs[] = {
151 {"88pm860x-rtc", -1,},
152};
153
Haojian Zhuang2c36af72010-08-12 11:59:33 +0800154
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500155struct pm860x_irq_data {
156 int reg;
157 int mask_reg;
158 int enable; /* enable or not */
159 int offs; /* bit offset in mask register */
160};
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500161
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500162static struct pm860x_irq_data pm860x_irqs[] = {
163 [PM8607_IRQ_ONKEY] = {
164 .reg = PM8607_INT_STATUS1,
165 .mask_reg = PM8607_INT_MASK_1,
166 .offs = 1 << 0,
167 },
168 [PM8607_IRQ_EXTON] = {
169 .reg = PM8607_INT_STATUS1,
170 .mask_reg = PM8607_INT_MASK_1,
171 .offs = 1 << 1,
172 },
173 [PM8607_IRQ_CHG] = {
174 .reg = PM8607_INT_STATUS1,
175 .mask_reg = PM8607_INT_MASK_1,
176 .offs = 1 << 2,
177 },
178 [PM8607_IRQ_BAT] = {
179 .reg = PM8607_INT_STATUS1,
180 .mask_reg = PM8607_INT_MASK_1,
181 .offs = 1 << 3,
182 },
183 [PM8607_IRQ_RTC] = {
184 .reg = PM8607_INT_STATUS1,
185 .mask_reg = PM8607_INT_MASK_1,
186 .offs = 1 << 4,
187 },
188 [PM8607_IRQ_CC] = {
189 .reg = PM8607_INT_STATUS1,
190 .mask_reg = PM8607_INT_MASK_1,
191 .offs = 1 << 5,
192 },
193 [PM8607_IRQ_VBAT] = {
194 .reg = PM8607_INT_STATUS2,
195 .mask_reg = PM8607_INT_MASK_2,
196 .offs = 1 << 0,
197 },
198 [PM8607_IRQ_VCHG] = {
199 .reg = PM8607_INT_STATUS2,
200 .mask_reg = PM8607_INT_MASK_2,
201 .offs = 1 << 1,
202 },
203 [PM8607_IRQ_VSYS] = {
204 .reg = PM8607_INT_STATUS2,
205 .mask_reg = PM8607_INT_MASK_2,
206 .offs = 1 << 2,
207 },
208 [PM8607_IRQ_TINT] = {
209 .reg = PM8607_INT_STATUS2,
210 .mask_reg = PM8607_INT_MASK_2,
211 .offs = 1 << 3,
212 },
213 [PM8607_IRQ_GPADC0] = {
214 .reg = PM8607_INT_STATUS2,
215 .mask_reg = PM8607_INT_MASK_2,
216 .offs = 1 << 4,
217 },
218 [PM8607_IRQ_GPADC1] = {
219 .reg = PM8607_INT_STATUS2,
220 .mask_reg = PM8607_INT_MASK_2,
221 .offs = 1 << 5,
222 },
223 [PM8607_IRQ_GPADC2] = {
224 .reg = PM8607_INT_STATUS2,
225 .mask_reg = PM8607_INT_MASK_2,
226 .offs = 1 << 6,
227 },
228 [PM8607_IRQ_GPADC3] = {
229 .reg = PM8607_INT_STATUS2,
230 .mask_reg = PM8607_INT_MASK_2,
231 .offs = 1 << 7,
232 },
233 [PM8607_IRQ_AUDIO_SHORT] = {
234 .reg = PM8607_INT_STATUS3,
235 .mask_reg = PM8607_INT_MASK_3,
236 .offs = 1 << 0,
237 },
238 [PM8607_IRQ_PEN] = {
239 .reg = PM8607_INT_STATUS3,
240 .mask_reg = PM8607_INT_MASK_3,
241 .offs = 1 << 1,
242 },
243 [PM8607_IRQ_HEADSET] = {
244 .reg = PM8607_INT_STATUS3,
245 .mask_reg = PM8607_INT_MASK_3,
246 .offs = 1 << 2,
247 },
248 [PM8607_IRQ_HOOK] = {
249 .reg = PM8607_INT_STATUS3,
250 .mask_reg = PM8607_INT_MASK_3,
251 .offs = 1 << 3,
252 },
253 [PM8607_IRQ_MICIN] = {
254 .reg = PM8607_INT_STATUS3,
255 .mask_reg = PM8607_INT_MASK_3,
256 .offs = 1 << 4,
257 },
258 [PM8607_IRQ_CHG_FAIL] = {
259 .reg = PM8607_INT_STATUS3,
260 .mask_reg = PM8607_INT_MASK_3,
261 .offs = 1 << 5,
262 },
263 [PM8607_IRQ_CHG_DONE] = {
264 .reg = PM8607_INT_STATUS3,
265 .mask_reg = PM8607_INT_MASK_3,
266 .offs = 1 << 6,
267 },
268 [PM8607_IRQ_CHG_FAULT] = {
269 .reg = PM8607_INT_STATUS3,
270 .mask_reg = PM8607_INT_MASK_3,
271 .offs = 1 << 7,
272 },
273};
274
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500275static irqreturn_t pm860x_irq(int irq, void *data)
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500276{
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500277 struct pm860x_chip *chip = data;
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500278 struct pm860x_irq_data *irq_data;
279 struct i2c_client *i2c;
280 int read_reg = -1, value = 0;
281 int i;
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500282
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500283 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
284 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
285 irq_data = &pm860x_irqs[i];
286 if (read_reg != irq_data->reg) {
287 read_reg = irq_data->reg;
288 value = pm860x_reg_read(i2c, irq_data->reg);
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500289 }
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500290 if (value & irq_data->enable)
291 handle_nested_irq(chip->irq_base + i);
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500292 }
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500293 return IRQ_HANDLED;
294}
295
Mark Brown49f89d92010-12-11 12:31:31 +0000296static void pm860x_irq_lock(struct irq_data *data)
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500297{
Mark Brown49f89d92010-12-11 12:31:31 +0000298 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500299
300 mutex_lock(&chip->irq_lock);
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500301}
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500302
Mark Brown49f89d92010-12-11 12:31:31 +0000303static void pm860x_irq_sync_unlock(struct irq_data *data)
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500304{
Mark Brown49f89d92010-12-11 12:31:31 +0000305 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500306 struct pm860x_irq_data *irq_data;
307 struct i2c_client *i2c;
308 static unsigned char cached[3] = {0x0, 0x0, 0x0};
309 unsigned char mask[3];
310 int i;
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500311
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500312 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
313 /* Load cached value. In initial, all IRQs are masked */
314 for (i = 0; i < 3; i++)
315 mask[i] = cached[i];
316 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
317 irq_data = &pm860x_irqs[i];
318 switch (irq_data->mask_reg) {
319 case PM8607_INT_MASK_1:
320 mask[0] &= ~irq_data->offs;
321 mask[0] |= irq_data->enable;
322 break;
323 case PM8607_INT_MASK_2:
324 mask[1] &= ~irq_data->offs;
325 mask[1] |= irq_data->enable;
326 break;
327 case PM8607_INT_MASK_3:
328 mask[2] &= ~irq_data->offs;
329 mask[2] |= irq_data->enable;
330 break;
331 default:
332 dev_err(chip->dev, "wrong IRQ\n");
333 break;
334 }
335 }
336 /* update mask into registers */
337 for (i = 0; i < 3; i++) {
338 if (mask[i] != cached[i]) {
339 cached[i] = mask[i];
340 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]);
341 }
342 }
343
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500344 mutex_unlock(&chip->irq_lock);
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500345}
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500346
Mark Brown49f89d92010-12-11 12:31:31 +0000347static void pm860x_irq_enable(struct irq_data *data)
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500348{
Mark Brown49f89d92010-12-11 12:31:31 +0000349 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
350 pm860x_irqs[data->irq - chip->irq_base].enable
351 = pm860x_irqs[data->irq - chip->irq_base].offs;
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500352}
353
Mark Brown49f89d92010-12-11 12:31:31 +0000354static void pm860x_irq_disable(struct irq_data *data)
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500355{
Mark Brown49f89d92010-12-11 12:31:31 +0000356 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data);
357 pm860x_irqs[data->irq - chip->irq_base].enable = 0;
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500358}
359
360static struct irq_chip pm860x_irq_chip = {
361 .name = "88pm860x",
Mark Brown49f89d92010-12-11 12:31:31 +0000362 .irq_bus_lock = pm860x_irq_lock,
363 .irq_bus_sync_unlock = pm860x_irq_sync_unlock,
364 .irq_enable = pm860x_irq_enable,
365 .irq_disable = pm860x_irq_disable,
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500366};
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500367
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500368static int __devinit device_gpadc_init(struct pm860x_chip *chip,
369 struct pm860x_platform_data *pdata)
370{
371 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
372 : chip->companion;
Dan Carpentereb6e8dd2010-05-27 00:54:09 +0200373 int data;
374 int ret;
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500375
376 /* initialize GPADC without activating it */
377
Dan Carpentereb6e8dd2010-05-27 00:54:09 +0200378 if (!pdata || !pdata->touch)
379 return -EINVAL;
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500380
Dan Carpentereb6e8dd2010-05-27 00:54:09 +0200381 /* set GPADC MISC1 register */
382 data = 0;
383 data |= (pdata->touch->gpadc_prebias << 1) & PM8607_GPADC_PREBIAS_MASK;
384 data |= (pdata->touch->slot_cycle << 3) & PM8607_GPADC_SLOT_CYCLE_MASK;
385 data |= (pdata->touch->off_scale << 5) & PM8607_GPADC_OFF_SCALE_MASK;
386 data |= (pdata->touch->sw_cal << 7) & PM8607_GPADC_SW_CAL_MASK;
387 if (data) {
388 ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
389 if (ret < 0)
390 goto out;
391 }
392 /* set tsi prebias time */
393 if (pdata->touch->tsi_prebias) {
394 data = pdata->touch->tsi_prebias;
395 ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
396 if (ret < 0)
397 goto out;
398 }
399 /* set prebias & prechg time of pen detect */
400 data = 0;
401 data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK;
402 data |= (pdata->touch->pen_prechg << 5) & PM8607_PD_PRECHG_MASK;
403 if (data) {
404 ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
405 if (ret < 0)
406 goto out;
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500407 }
408
Dan Carpentereb6e8dd2010-05-27 00:54:09 +0200409 ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1,
410 PM8607_GPADC_EN, PM8607_GPADC_EN);
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500411out:
412 return ret;
413}
414
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500415static int __devinit device_irq_init(struct pm860x_chip *chip,
416 struct pm860x_platform_data *pdata)
417{
418 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
419 : chip->companion;
420 unsigned char status_buf[INT_STATUS_NUM];
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500421 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500422 int i, data, mask, ret = -EINVAL;
423 int __irq;
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500424
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500425 if (!pdata || !pdata->irq_base) {
426 dev_warn(chip->dev, "No interrupt support on IRQ base\n");
427 return -EINVAL;
428 }
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500429
430 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR
431 | PM8607_B0_MISC1_INT_MASK;
432 data = 0;
433 chip->irq_mode = 0;
434 if (pdata && pdata->irq_mode) {
435 /*
436 * irq_mode defines the way of clearing interrupt. If it's 1,
437 * clear IRQ by write. Otherwise, clear it by read.
438 * This control bit is valid from 88PM8607 B0 steping.
439 */
440 data |= PM8607_B0_MISC1_INT_CLEAR;
441 chip->irq_mode = 1;
442 }
443 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data);
444 if (ret < 0)
445 goto out;
446
447 /* mask all IRQs */
448 memset(status_buf, 0, INT_STATUS_NUM);
449 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1,
450 INT_STATUS_NUM, status_buf);
451 if (ret < 0)
452 goto out;
453
454 if (chip->irq_mode) {
455 /* clear interrupt status by write */
456 memset(status_buf, 0xFF, INT_STATUS_NUM);
457 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1,
458 INT_STATUS_NUM, status_buf);
459 } else {
460 /* clear interrupt status by read */
461 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1,
462 INT_STATUS_NUM, status_buf);
463 }
464 if (ret < 0)
465 goto out;
466
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500467 mutex_init(&chip->irq_lock);
468 chip->irq_base = pdata->irq_base;
469 chip->core_irq = i2c->irq;
470 if (!chip->core_irq)
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500471 goto out;
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500472
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500473 /* register IRQ by genirq */
474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
475 __irq = i + chip->irq_base;
Thomas Gleixnerd5bb1222011-03-25 11:12:32 +0000476 irq_set_chip_data(__irq, chip);
477 irq_set_chip_and_handler(__irq, &pm860x_irq_chip,
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500478 handle_edge_irq);
Thomas Gleixnerd5bb1222011-03-25 11:12:32 +0000479 irq_set_nested_thread(__irq, 1);
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500480#ifdef CONFIG_ARM
481 set_irq_flags(__irq, IRQF_VALID);
482#else
Thomas Gleixnerd5bb1222011-03-25 11:12:32 +0000483 irq_set_noprobe(__irq);
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500484#endif
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500485 }
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500486
487 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags,
488 "88pm860x", chip);
489 if (ret) {
490 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret);
491 chip->core_irq = 0;
492 }
493
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500494 return 0;
495out:
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500496 chip->core_irq = 0;
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500497 return ret;
498}
499
Henrik Kretzschmar872c1b12010-03-26 02:40:13 +0100500static void device_irq_exit(struct pm860x_chip *chip)
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500501{
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500502 if (chip->core_irq)
503 free_irq(chip->core_irq, chip);
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500504}
505
Haojian Zhuangadb70482011-03-07 23:43:09 +0800506static void __devinit device_bk_init(struct pm860x_chip *chip,
Haojian Zhuangadb70482011-03-07 23:43:09 +0800507 struct pm860x_platform_data *pdata)
508{
509 int ret;
510 int i, j, id;
511
512 if ((pdata == NULL) || (pdata->backlight == NULL))
513 return;
514
515 if (pdata->num_backlights > ARRAY_SIZE(bk_devs))
516 pdata->num_backlights = ARRAY_SIZE(bk_devs);
517
518 for (i = 0; i < pdata->num_backlights; i++) {
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800519 bk_devs[i].platform_data = &pdata->backlight[i];
520 bk_devs[i].pdata_size = sizeof(struct pm860x_backlight_pdata);
Haojian Zhuangadb70482011-03-07 23:43:09 +0800521
522 for (j = 0; j < ARRAY_SIZE(bk_devs); j++) {
523 id = bk_resources[j].start;
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800524 if (pdata->backlight[i].flags != id)
Haojian Zhuangadb70482011-03-07 23:43:09 +0800525 continue;
526
527 bk_devs[i].num_resources = 1;
528 bk_devs[i].resources = &bk_resources[j];
529 ret = mfd_add_devices(chip->dev, 0,
530 &bk_devs[i], 1,
531 &bk_resources[j], 0);
532 if (ret < 0) {
533 dev_err(chip->dev, "Failed to add "
534 "backlight subdev\n");
535 return;
536 }
537 }
538 }
539}
540
Haojian Zhuang3154c342011-03-07 23:43:10 +0800541static void __devinit device_led_init(struct pm860x_chip *chip,
Haojian Zhuang3154c342011-03-07 23:43:10 +0800542 struct pm860x_platform_data *pdata)
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500543{
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500544 int ret;
Haojian Zhuang3154c342011-03-07 23:43:10 +0800545 int i, j, id;
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500546
Haojian Zhuang3154c342011-03-07 23:43:10 +0800547 if ((pdata == NULL) || (pdata->led == NULL))
548 return;
549
550 if (pdata->num_leds > ARRAY_SIZE(led_devs))
551 pdata->num_leds = ARRAY_SIZE(led_devs);
552
553 for (i = 0; i < pdata->num_leds; i++) {
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800554 led_devs[i].platform_data = &pdata->led[i];
555 led_devs[i].pdata_size = sizeof(struct pm860x_led_pdata);
Haojian Zhuang3154c342011-03-07 23:43:10 +0800556
557 for (j = 0; j < ARRAY_SIZE(led_devs); j++) {
558 id = led_resources[j].start;
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800559 if (pdata->led[i].flags != id)
Haojian Zhuang3154c342011-03-07 23:43:10 +0800560 continue;
561
562 led_devs[i].num_resources = 1;
563 led_devs[i].resources = &led_resources[j],
564 ret = mfd_add_devices(chip->dev, 0,
565 &led_devs[i], 1,
566 &led_resources[j], 0);
567 if (ret < 0) {
568 dev_err(chip->dev, "Failed to add "
569 "led subdev\n");
570 return;
571 }
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500572 }
573 }
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500574}
575
Haojian Zhuang22aad002011-03-07 23:43:11 +0800576static void __devinit device_regulator_init(struct pm860x_chip *chip,
Haojian Zhuang22aad002011-03-07 23:43:11 +0800577 struct pm860x_platform_data *pdata)
578{
579 struct regulator_init_data *initdata;
580 int ret;
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800581 int i, seq;
Haojian Zhuang22aad002011-03-07 23:43:11 +0800582
583 if ((pdata == NULL) || (pdata->regulator == NULL))
584 return;
585
586 if (pdata->num_regulators > ARRAY_SIZE(regulator_devs))
587 pdata->num_regulators = ARRAY_SIZE(regulator_devs);
588
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800589 for (i = 0, seq = -1; i < pdata->num_regulators; i++) {
Haojian Zhuang22aad002011-03-07 23:43:11 +0800590 initdata = &pdata->regulator[i];
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800591 seq = *(unsigned int *)initdata->driver_data;
592 if ((seq < 0) || (seq > PM8607_ID_RG_MAX)) {
593 dev_err(chip->dev, "Wrong ID(%d) on regulator(%s)\n",
594 seq, initdata->constraints.name);
Haojian Zhuang22aad002011-03-07 23:43:11 +0800595 goto out;
596 }
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800597 regulator_devs[i].platform_data = &pdata->regulator[i];
598 regulator_devs[i].pdata_size = sizeof(struct regulator_init_data);
Haojian Zhuang22aad002011-03-07 23:43:11 +0800599 regulator_devs[i].num_resources = 1;
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800600 regulator_devs[i].resources = &regulator_resources[seq];
Haojian Zhuang22aad002011-03-07 23:43:11 +0800601
602 ret = mfd_add_devices(chip->dev, 0, &regulator_devs[i], 1,
Haojian Zhuang586e1a12011-05-06 17:21:23 +0800603 &regulator_resources[seq], 0);
Haojian Zhuang22aad002011-03-07 23:43:11 +0800604 if (ret < 0) {
605 dev_err(chip->dev, "Failed to add regulator subdev\n");
606 goto out;
607 }
608 }
609out:
610 return;
611}
612
Haojian Zhuang008b3042011-05-06 17:21:20 +0800613static void __devinit device_rtc_init(struct pm860x_chip *chip,
Haojian Zhuang008b3042011-05-06 17:21:20 +0800614 struct pm860x_platform_data *pdata)
615{
616 int ret;
617
618 if ((pdata == NULL))
619 return;
620
621 rtc_devs[0].platform_data = pdata->rtc;
622 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata);
623 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources);
624 rtc_devs[0].resources = &rtc_resources[0];
625 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
626 ARRAY_SIZE(rtc_devs), &rtc_resources[0],
627 chip->irq_base);
628 if (ret < 0)
629 dev_err(chip->dev, "Failed to add rtc subdev\n");
630}
631
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800632static void __devinit device_touch_init(struct pm860x_chip *chip,
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800633 struct pm860x_platform_data *pdata)
634{
635 int ret;
636
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800637 if (pdata == NULL)
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800638 return;
639
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800640 touch_devs[0].platform_data = pdata->touch;
641 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata);
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800642 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources);
643 touch_devs[0].resources = &touch_resources[0];
644 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
645 ARRAY_SIZE(touch_devs), &touch_resources[0],
646 chip->irq_base);
647 if (ret < 0)
648 dev_err(chip->dev, "Failed to add touch subdev\n");
649}
650
651static void __devinit device_power_init(struct pm860x_chip *chip,
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800652 struct pm860x_platform_data *pdata)
653{
654 int ret;
655
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800656 if (pdata == NULL)
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800657 return;
658
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800659 power_devs[0].platform_data = pdata->power;
660 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata);
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800661 power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
662 power_devs[0].resources = &battery_resources[0],
663 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
664 &battery_resources[0], chip->irq_base);
665 if (ret < 0)
666 dev_err(chip->dev, "Failed to add battery subdev\n");
667
Haojian Zhuangf5fb7582011-05-06 17:21:21 +0800668 power_devs[1].platform_data = pdata->power;
669 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata);
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800670 power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
671 power_devs[1].resources = &charger_resources[0],
672 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
673 &charger_resources[0], chip->irq_base);
674 if (ret < 0)
675 dev_err(chip->dev, "Failed to add charger subdev\n");
676}
677
678static void __devinit device_onkey_init(struct pm860x_chip *chip,
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800679 struct pm860x_platform_data *pdata)
680{
681 int ret;
682
683 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources);
684 onkey_devs[0].resources = &onkey_resources[0],
685 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
686 ARRAY_SIZE(onkey_devs), &onkey_resources[0],
687 chip->irq_base);
688 if (ret < 0)
689 dev_err(chip->dev, "Failed to add onkey subdev\n");
690}
691
692static void __devinit device_codec_init(struct pm860x_chip *chip,
Haojian Zhuangc9f560b2011-03-07 23:43:12 +0800693 struct pm860x_platform_data *pdata)
694{
695 int ret;
696
697 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
698 codec_devs[0].resources = &codec_resources[0],
699 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
700 ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
701 if (ret < 0)
702 dev_err(chip->dev, "Failed to add codec subdev\n");
703}
704
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500705static void __devinit device_8607_init(struct pm860x_chip *chip,
706 struct i2c_client *i2c,
707 struct pm860x_platform_data *pdata)
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500708{
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500709 int data, ret;
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500710
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500711 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500712 if (ret < 0) {
713 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret);
714 goto out;
715 }
Haojian Zhuang38b34052010-09-08 09:44:34 -0400716 switch (ret & PM8607_VERSION_MASK) {
717 case 0x40:
718 case 0x50:
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500719 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n",
720 ret);
Haojian Zhuang38b34052010-09-08 09:44:34 -0400721 break;
722 default:
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500723 dev_err(chip->dev, "Failed to detect Marvell 88PM8607. "
724 "Chip ID: %02x\n", ret);
725 goto out;
726 }
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500727
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500728 ret = pm860x_reg_read(i2c, PM8607_BUCK3);
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500729 if (ret < 0) {
730 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret);
731 goto out;
732 }
733 if (ret & PM8607_BUCK3_DOUBLE)
734 chip->buck3_double = 1;
735
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500736 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1);
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500737 if (ret < 0) {
738 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret);
739 goto out;
740 }
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500741
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500742 if (pdata && (pdata->i2c_port == PI2C_PORT))
743 data = PM8607_B0_MISC1_PI2C;
744 else
745 data = 0;
746 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data);
747 if (ret < 0) {
748 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret);
749 goto out;
750 }
751
Haojian Zhuanga16122b2009-12-15 16:04:36 -0500752 ret = device_gpadc_init(chip, pdata);
753 if (ret < 0)
754 goto out;
755
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500756 ret = device_irq_init(chip, pdata);
757 if (ret < 0)
758 goto out;
759
Haojian Zhuangcea438d2011-05-06 17:21:24 +0800760 device_regulator_init(chip, pdata);
761 device_rtc_init(chip, pdata);
762 device_onkey_init(chip, pdata);
763 device_touch_init(chip, pdata);
764 device_power_init(chip, pdata);
765 device_codec_init(chip, pdata);
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500766out:
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500767 return;
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500768}
769
Henrik Kretzschmar872c1b12010-03-26 02:40:13 +0100770int __devinit pm860x_device_init(struct pm860x_chip *chip,
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500771 struct pm860x_platform_data *pdata)
772{
Haojian Zhuang2afa62e2010-02-08 05:02:00 -0500773 chip->core_irq = 0;
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500774
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500775 switch (chip->id) {
776 case CHIP_PM8606:
Haojian Zhuangcea438d2011-05-06 17:21:24 +0800777 device_bk_init(chip, pdata);
778 device_led_init(chip, pdata);
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500779 break;
780 case CHIP_PM8607:
781 device_8607_init(chip, chip->client, pdata);
782 break;
783 }
784
785 if (chip->companion) {
786 switch (chip->id) {
787 case CHIP_PM8607:
Haojian Zhuangcea438d2011-05-06 17:21:24 +0800788 device_bk_init(chip, pdata);
789 device_led_init(chip, pdata);
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500790 break;
791 case CHIP_PM8606:
792 device_8607_init(chip, chip->companion, pdata);
793 break;
794 }
795 }
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500796
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500797 return 0;
798}
799
Henrik Kretzschmar872c1b12010-03-26 02:40:13 +0100800void __devexit pm860x_device_exit(struct pm860x_chip *chip)
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500801{
Haojian Zhuang5c42e8c2009-12-15 16:01:47 -0500802 device_irq_exit(chip);
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500803 mfd_remove_devices(chip->dev);
804}
805
Haojian Zhuang53dbab72010-01-08 06:01:24 -0500806MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x");
Haojian Zhuangbbd51b12010-01-06 17:04:18 -0500807MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
808MODULE_LICENSE("GPL");