2 * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM
3 * and audio CODEC devices
5 * Copyright (C) 2005-2006 Texas Instruments, Inc.
7 * Modifications to defer interrupt handling to a kernel thread:
8 * Copyright (C) 2006 MontaVista Software, Inc.
10 * Based on tlv320aic23.c:
11 * Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
13 * Code cleanup and modifications to IRQ handler.
14 * by syed khasim <x0khasim@ti.com>
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 #include <linux/init.h>
32 #include <linux/mutex.h>
33 #include <linux/module.h>
34 #include <linux/platform_device.h>
35 #include <linux/clk.h>
36 #include <linux/err.h>
37 #include <linux/device.h>
39 #include <linux/of_irq.h>
40 #include <linux/of_platform.h>
41 #include <linux/irq.h>
42 #include <linux/irqdomain.h>
44 #include <linux/regulator/machine.h>
46 #include <linux/i2c.h>
47 #include <linux/i2c/twl.h>
49 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
54 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
55 * Management and System Companion Device" chips originally designed for
56 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
57 * often at around 3 Mbit/sec, including for interrupt handling.
59 * This driver core provides genirq support for the interrupts emitted,
60 * by the various modules, and exports register access primitives.
62 * FIXME this driver currently requires use of the first interrupt line
63 * (and associated registers).
66 #define DRIVER_NAME "twl"
68 #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
69 #define twl_has_keypad() true
71 #define twl_has_keypad() false
74 #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
75 #define twl_has_gpio() true
77 #define twl_has_gpio() false
80 #if defined(CONFIG_REGULATOR_TWL4030) \
81 || defined(CONFIG_REGULATOR_TWL4030_MODULE)
82 #define twl_has_regulator() true
84 #define twl_has_regulator() false
87 #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
88 #define twl_has_madc() true
90 #define twl_has_madc() false
93 #ifdef CONFIG_TWL4030_POWER
94 #define twl_has_power() true
96 #define twl_has_power() false
99 #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
100 #define twl_has_rtc() true
102 #define twl_has_rtc() false
105 #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
106 defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
107 #define twl_has_usb() true
109 #define twl_has_usb() false
112 #if defined(CONFIG_TWL4030_WATCHDOG) || \
113 defined(CONFIG_TWL4030_WATCHDOG_MODULE)
114 #define twl_has_watchdog() true
116 #define twl_has_watchdog() false
119 #if defined(CONFIG_MFD_TWL4030_AUDIO) || defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) ||\
120 defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE)
121 #define twl_has_codec() true
123 #define twl_has_codec() false
126 #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
127 #define twl_has_bci() true
129 #define twl_has_bci() false
132 /* Triton Core internal information (BEGIN) */
134 /* Last - for index max*/
135 #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
137 #define TWL_NUM_SLAVES 4
139 #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
140 || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
141 #define twl_has_pwrbutton() true
143 #define twl_has_pwrbutton() false
146 #define SUB_CHIP_ID0 0
147 #define SUB_CHIP_ID1 1
148 #define SUB_CHIP_ID2 2
149 #define SUB_CHIP_ID3 3
151 #define TWL_MODULE_LAST TWL4030_MODULE_LAST
153 #define TWL4030_NR_IRQS 34 /* core:8, power:8, gpio: 18 */
154 #define TWL6030_NR_IRQS 20
156 /* Base Address defns for twl4030_map[] */
158 /* subchip/slave 0 - USB ID */
159 #define TWL4030_BASEADD_USB 0x0000
161 /* subchip/slave 1 - AUD ID */
162 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000
163 #define TWL4030_BASEADD_GPIO 0x0098
164 #define TWL4030_BASEADD_INTBR 0x0085
165 #define TWL4030_BASEADD_PIH 0x0080
166 #define TWL4030_BASEADD_TEST 0x004C
168 /* subchip/slave 2 - AUX ID */
169 #define TWL4030_BASEADD_INTERRUPTS 0x00B9
170 #define TWL4030_BASEADD_LED 0x00EE
171 #define TWL4030_BASEADD_MADC 0x0000
172 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074
173 #define TWL4030_BASEADD_PRECHARGE 0x00AA
174 #define TWL4030_BASEADD_PWM0 0x00F8
175 #define TWL4030_BASEADD_PWM1 0x00FB
176 #define TWL4030_BASEADD_PWMA 0x00EF
177 #define TWL4030_BASEADD_PWMB 0x00F1
178 #define TWL4030_BASEADD_KEYPAD 0x00D2
180 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
181 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
184 /* subchip/slave 3 - POWER ID */
185 #define TWL4030_BASEADD_BACKUP 0x0014
186 #define TWL4030_BASEADD_INT 0x002E
187 #define TWL4030_BASEADD_PM_MASTER 0x0036
188 #define TWL4030_BASEADD_PM_RECEIVER 0x005B
189 #define TWL4030_BASEADD_RTC 0x001C
190 #define TWL4030_BASEADD_SECURED_REG 0x0000
192 /* Triton Core internal information (END) */
195 /* subchip/slave 0 0x48 - POWER */
196 #define TWL6030_BASEADD_RTC 0x0000
197 #define TWL6030_BASEADD_MEM 0x0017
198 #define TWL6030_BASEADD_PM_MASTER 0x001F
199 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
200 #define TWL6030_BASEADD_PM_MISC 0x00E2
201 #define TWL6030_BASEADD_PM_PUPD 0x00F0
203 /* subchip/slave 1 0x49 - FEATURE */
204 #define TWL6030_BASEADD_USB 0x0000
205 #define TWL6030_BASEADD_GPADC_CTRL 0x002E
206 #define TWL6030_BASEADD_AUX 0x0090
207 #define TWL6030_BASEADD_PWM 0x00BA
208 #define TWL6030_BASEADD_GASGAUGE 0x00C0
209 #define TWL6030_BASEADD_PIH 0x00D0
210 #define TWL6030_BASEADD_CHARGER 0x00E0
211 #define TWL6025_BASEADD_CHARGER 0x00DA
213 /* subchip/slave 2 0x4A - DFT */
214 #define TWL6030_BASEADD_DIEID 0x00C0
216 /* subchip/slave 3 0x4B - AUDIO */
217 #define TWL6030_BASEADD_AUDIO 0x0000
218 #define TWL6030_BASEADD_RSV 0x0000
219 #define TWL6030_BASEADD_ZERO 0x0000
221 /* Few power values */
222 #define R_CFG_BOOT 0x05
224 /* some fields in R_CFG_BOOT */
225 #define HFCLK_FREQ_19p2_MHZ (1 << 0)
226 #define HFCLK_FREQ_26_MHZ (2 << 0)
227 #define HFCLK_FREQ_38p4_MHZ (3 << 0)
228 #define HIGH_PERF_SQ (1 << 3)
229 #define CK32K_LOWPWR_EN (1 << 7)
232 /* chip-specific feature flags, for i2c_device_id.driver_data */
233 #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
234 #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
235 #define TWL5031 BIT(2) /* twl5031 has different registers */
236 #define TWL6030_CLASS BIT(3) /* TWL6030 class */
238 /*----------------------------------------------------------------------*/
240 /* is driver active, bound to a chip? */
243 /* TWL IDCODE Register value */
244 static u32 twl_idcode;
246 static unsigned int twl_id;
247 unsigned int twl_rev(void)
251 EXPORT_SYMBOL(twl_rev);
253 /* Structure for each TWL4030/TWL6030 Slave */
255 struct i2c_client *client;
258 /* max numb of i2c_msg required is for read =2 */
259 struct i2c_msg xfer_msg[2];
261 /* To lock access to xfer_msg */
262 struct mutex xfer_lock;
265 static struct twl_client twl_modules[TWL_NUM_SLAVES];
267 /* mapping the module id to slave id and base address */
269 unsigned char sid; /* Slave ID */
270 unsigned char base; /* base address */
272 static struct twl_mapping *twl_map;
274 static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
276 * NOTE: don't change this table without updating the
277 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
278 * so they continue to match the order in this table.
281 { 0, TWL4030_BASEADD_USB },
283 { 1, TWL4030_BASEADD_AUDIO_VOICE },
284 { 1, TWL4030_BASEADD_GPIO },
285 { 1, TWL4030_BASEADD_INTBR },
286 { 1, TWL4030_BASEADD_PIH },
287 { 1, TWL4030_BASEADD_TEST },
289 { 2, TWL4030_BASEADD_KEYPAD },
290 { 2, TWL4030_BASEADD_MADC },
291 { 2, TWL4030_BASEADD_INTERRUPTS },
292 { 2, TWL4030_BASEADD_LED },
293 { 2, TWL4030_BASEADD_MAIN_CHARGE },
294 { 2, TWL4030_BASEADD_PRECHARGE },
295 { 2, TWL4030_BASEADD_PWM0 },
296 { 2, TWL4030_BASEADD_PWM1 },
297 { 2, TWL4030_BASEADD_PWMA },
298 { 2, TWL4030_BASEADD_PWMB },
299 { 2, TWL5031_BASEADD_ACCESSORY },
300 { 2, TWL5031_BASEADD_INTERRUPTS },
302 { 3, TWL4030_BASEADD_BACKUP },
303 { 3, TWL4030_BASEADD_INT },
304 { 3, TWL4030_BASEADD_PM_MASTER },
305 { 3, TWL4030_BASEADD_PM_RECEIVER },
306 { 3, TWL4030_BASEADD_RTC },
307 { 3, TWL4030_BASEADD_SECURED_REG },
310 static struct twl_mapping twl6030_map[] = {
312 * NOTE: don't change this table without updating the
313 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
314 * so they continue to match the order in this table.
316 { SUB_CHIP_ID1, TWL6030_BASEADD_USB },
317 { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO },
318 { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
319 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
320 { SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
322 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
323 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
324 { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL },
325 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
326 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
328 { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER },
329 { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE },
330 { SUB_CHIP_ID1, TWL6030_BASEADD_PWM },
331 { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO },
332 { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO },
334 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
335 { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
336 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
337 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
338 { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
339 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER },
340 { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC },
342 { SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
343 { SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
344 { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER },
347 /*----------------------------------------------------------------------*/
349 /* Exported Functions */
352 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
353 * @mod_no: module number
354 * @value: an array of num_bytes+1 containing data to write
355 * @reg: register address (just offset will do)
356 * @num_bytes: number of bytes to transfer
358 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
359 * valid data starts at Offset 1.
361 * Returns the result of operation - 0 is success
363 int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
367 struct twl_client *twl;
370 if (unlikely(mod_no > TWL_MODULE_LAST)) {
371 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
374 if (unlikely(!inuse)) {
375 pr_err("%s: not initialized\n", DRIVER_NAME);
378 sid = twl_map[mod_no].sid;
379 twl = &twl_modules[sid];
381 mutex_lock(&twl->xfer_lock);
383 * [MSG1]: fill the register address data
384 * fill the data Tx buffer
386 msg = &twl->xfer_msg[0];
387 msg->addr = twl->address;
388 msg->len = num_bytes + 1;
391 /* over write the first byte of buffer with the register address */
392 *value = twl_map[mod_no].base + reg;
393 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
394 mutex_unlock(&twl->xfer_lock);
396 /* i2c_transfer returns number of messages transferred */
398 pr_err("%s: i2c_write failed to transfer all messages\n",
408 EXPORT_SYMBOL(twl_i2c_write);
411 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
412 * @mod_no: module number
413 * @value: an array of num_bytes containing data to be read
414 * @reg: register address (just offset will do)
415 * @num_bytes: number of bytes to transfer
417 * Returns result of operation - num_bytes is success else failure.
419 int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
424 struct twl_client *twl;
427 if (unlikely(mod_no > TWL_MODULE_LAST)) {
428 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
431 if (unlikely(!inuse)) {
432 pr_err("%s: not initialized\n", DRIVER_NAME);
435 sid = twl_map[mod_no].sid;
436 twl = &twl_modules[sid];
438 mutex_lock(&twl->xfer_lock);
439 /* [MSG1] fill the register address data */
440 msg = &twl->xfer_msg[0];
441 msg->addr = twl->address;
443 msg->flags = 0; /* Read the register value */
444 val = twl_map[mod_no].base + reg;
446 /* [MSG2] fill the data rx buffer */
447 msg = &twl->xfer_msg[1];
448 msg->addr = twl->address;
449 msg->flags = I2C_M_RD; /* Read the register value */
450 msg->len = num_bytes; /* only n bytes */
452 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2);
453 mutex_unlock(&twl->xfer_lock);
455 /* i2c_transfer returns number of messages transferred */
457 pr_err("%s: i2c_read failed to transfer all messages\n",
467 EXPORT_SYMBOL(twl_i2c_read);
470 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
471 * @mod_no: module number
472 * @value: the value to be written 8 bit
473 * @reg: register address (just offset will do)
475 * Returns result of operation - 0 is success
477 int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
480 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
481 u8 temp_buffer[2] = { 0 };
482 /* offset 1 contains the data */
483 temp_buffer[1] = value;
484 return twl_i2c_write(mod_no, temp_buffer, reg, 1);
486 EXPORT_SYMBOL(twl_i2c_write_u8);
489 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
490 * @mod_no: module number
491 * @value: the value read 8 bit
492 * @reg: register address (just offset will do)
494 * Returns result of operation - 0 is success
496 int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
498 return twl_i2c_read(mod_no, value, reg, 1);
500 EXPORT_SYMBOL(twl_i2c_read_u8);
502 /*----------------------------------------------------------------------*/
505 * twl_read_idcode_register - API to read the IDCODE register.
507 * Unlocks the IDCODE register and read the 32 bit value.
509 static int twl_read_idcode_register(void)
513 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK,
514 REG_UNLOCK_TEST_REG);
516 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err);
520 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode),
523 pr_err("TWL4030: unable to read IDCODE -%d\n", err);
527 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG);
529 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err);
535 * twl_get_type - API to get TWL Si type.
537 * Api to get the TWL Si type from IDCODE value.
539 int twl_get_type(void)
541 return TWL_SIL_TYPE(twl_idcode);
543 EXPORT_SYMBOL_GPL(twl_get_type);
546 * twl_get_version - API to get TWL Si version.
548 * Api to get the TWL Si version from IDCODE value.
550 int twl_get_version(void)
552 return TWL_SIL_REV(twl_idcode);
554 EXPORT_SYMBOL_GPL(twl_get_version);
556 static struct device *
557 add_numbered_child(unsigned chip, const char *name, int num,
558 void *pdata, unsigned pdata_len,
559 bool can_wakeup, int irq0, int irq1)
561 struct platform_device *pdev;
562 struct twl_client *twl = &twl_modules[chip];
565 pdev = platform_device_alloc(name, num);
567 dev_dbg(&twl->client->dev, "can't alloc dev\n");
572 device_init_wakeup(&pdev->dev, can_wakeup);
573 pdev->dev.parent = &twl->client->dev;
576 status = platform_device_add_data(pdev, pdata, pdata_len);
578 dev_dbg(&pdev->dev, "can't add platform_data\n");
584 struct resource r[2] = {
585 { .start = irq0, .flags = IORESOURCE_IRQ, },
586 { .start = irq1, .flags = IORESOURCE_IRQ, },
589 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
591 dev_dbg(&pdev->dev, "can't add irqs\n");
596 status = platform_device_add(pdev);
600 platform_device_put(pdev);
601 dev_err(&twl->client->dev, "can't add %s dev\n", name);
602 return ERR_PTR(status);
607 static inline struct device *add_child(unsigned chip, const char *name,
608 void *pdata, unsigned pdata_len,
609 bool can_wakeup, int irq0, int irq1)
611 return add_numbered_child(chip, name, -1, pdata, pdata_len,
612 can_wakeup, irq0, irq1);
615 static struct device *
616 add_regulator_linked(int num, struct regulator_init_data *pdata,
617 struct regulator_consumer_supply *consumers,
618 unsigned num_consumers, unsigned long features)
620 unsigned sub_chip_id;
621 struct twl_regulator_driver_data drv_data;
623 /* regulator framework demands init_data ... */
628 pdata->consumer_supplies = consumers;
629 pdata->num_consumer_supplies = num_consumers;
632 if (pdata->driver_data) {
633 /* If we have existing drv_data, just add the flags */
634 struct twl_regulator_driver_data *tmp;
635 tmp = pdata->driver_data;
636 tmp->features |= features;
638 /* add new driver data struct, used only during init */
639 drv_data.features = features;
640 drv_data.set_voltage = NULL;
641 drv_data.get_voltage = NULL;
642 drv_data.data = NULL;
643 pdata->driver_data = &drv_data;
646 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
647 sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
648 return add_numbered_child(sub_chip_id, "twl_reg", num,
649 pdata, sizeof(*pdata), false, 0, 0);
652 static struct device *
653 add_regulator(int num, struct regulator_init_data *pdata,
654 unsigned long features)
656 return add_regulator_linked(num, pdata, NULL, 0, features);
660 * NOTE: We know the first 8 IRQs after pdata->base_irq are
661 * for the PIH, and the next are for the PWR_INT SIH, since
662 * that's how twl_init_irq() sets things up.
666 add_children(struct twl4030_platform_data *pdata, unsigned long features)
668 struct device *child;
669 unsigned sub_chip_id;
671 if (twl_has_gpio() && pdata->gpio) {
672 child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
673 pdata->gpio, sizeof(*pdata->gpio),
674 false, pdata->irq_base + GPIO_INTR_OFFSET, 0);
676 return PTR_ERR(child);
679 if (twl_has_keypad() && pdata->keypad) {
680 child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
681 pdata->keypad, sizeof(*pdata->keypad),
682 true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0);
684 return PTR_ERR(child);
687 if (twl_has_madc() && pdata->madc) {
688 child = add_child(2, "twl4030_madc",
689 pdata->madc, sizeof(*pdata->madc),
690 true, pdata->irq_base + MADC_INTR_OFFSET, 0);
692 return PTR_ERR(child);
697 * REVISIT platform_data here currently might expose the
698 * "msecure" line ... but for now we just expect board
699 * setup to tell the chip "it's always ok to SET_TIME".
700 * Eventually, Linux might become more aware of such
701 * HW security concerns, and "least privilege".
703 sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
704 child = add_child(sub_chip_id, "twl_rtc",
706 true, pdata->irq_base + RTC_INTR_OFFSET, 0);
708 return PTR_ERR(child);
711 if (twl_has_usb() && pdata->usb && twl_class_is_4030()) {
713 static struct regulator_consumer_supply usb1v5 = {
716 static struct regulator_consumer_supply usb1v8 = {
719 static struct regulator_consumer_supply usb3v1 = {
723 /* First add the regulators so that they can be used by transceiver */
724 if (twl_has_regulator()) {
725 /* this is a template that gets copied */
726 struct regulator_init_data usb_fixed = {
727 .constraints.valid_modes_mask =
728 REGULATOR_MODE_NORMAL
729 | REGULATOR_MODE_STANDBY,
730 .constraints.valid_ops_mask =
731 REGULATOR_CHANGE_MODE
732 | REGULATOR_CHANGE_STATUS,
735 child = add_regulator_linked(TWL4030_REG_VUSB1V5,
736 &usb_fixed, &usb1v5, 1,
739 return PTR_ERR(child);
741 child = add_regulator_linked(TWL4030_REG_VUSB1V8,
742 &usb_fixed, &usb1v8, 1,
745 return PTR_ERR(child);
747 child = add_regulator_linked(TWL4030_REG_VUSB3V1,
748 &usb_fixed, &usb3v1, 1,
751 return PTR_ERR(child);
755 child = add_child(0, "twl4030_usb",
756 pdata->usb, sizeof(*pdata->usb),
758 /* irq0 = USB_PRES, irq1 = USB */
759 pdata->irq_base + USB_PRES_INTR_OFFSET,
760 pdata->irq_base + USB_INTR_OFFSET);
763 return PTR_ERR(child);
765 /* we need to connect regulators to this transceiver */
766 if (twl_has_regulator() && child) {
767 usb1v5.dev_name = dev_name(child);
768 usb1v8.dev_name = dev_name(child);
769 usb3v1.dev_name = dev_name(child);
772 if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
774 static struct regulator_consumer_supply usb3v3;
777 if (twl_has_regulator()) {
778 /* this is a template that gets copied */
779 struct regulator_init_data usb_fixed = {
780 .constraints.valid_modes_mask =
781 REGULATOR_MODE_NORMAL
782 | REGULATOR_MODE_STANDBY,
783 .constraints.valid_ops_mask =
784 REGULATOR_CHANGE_MODE
785 | REGULATOR_CHANGE_STATUS,
788 if (features & TWL6025_SUBCLASS) {
789 usb3v3.supply = "ldousb";
790 regulator = TWL6025_REG_LDOUSB;
792 usb3v3.supply = "vusb";
793 regulator = TWL6030_REG_VUSB;
795 child = add_regulator_linked(regulator, &usb_fixed,
799 return PTR_ERR(child);
802 pdata->usb->features = features;
804 child = add_child(0, "twl6030_usb",
805 pdata->usb, sizeof(*pdata->usb),
807 /* irq1 = VBUS_PRES, irq0 = USB ID */
808 pdata->irq_base + USBOTG_INTR_OFFSET,
809 pdata->irq_base + USB_PRES_INTR_OFFSET);
812 return PTR_ERR(child);
813 /* we need to connect regulators to this transceiver */
814 if (twl_has_regulator() && child)
815 usb3v3.dev_name = dev_name(child);
816 } else if (twl_has_regulator() && twl_class_is_6030()) {
817 if (features & TWL6025_SUBCLASS)
818 child = add_regulator(TWL6025_REG_LDOUSB,
819 pdata->ldousb, features);
821 child = add_regulator(TWL6030_REG_VUSB,
822 pdata->vusb, features);
825 return PTR_ERR(child);
828 if (twl_has_watchdog() && twl_class_is_4030()) {
829 child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0);
831 return PTR_ERR(child);
834 if (twl_has_pwrbutton() && twl_class_is_4030()) {
835 child = add_child(1, "twl4030_pwrbutton",
836 NULL, 0, true, pdata->irq_base + 8 + 0, 0);
838 return PTR_ERR(child);
841 if (twl_has_codec() && pdata->audio && twl_class_is_4030()) {
842 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
843 child = add_child(sub_chip_id, "twl4030-audio",
844 pdata->audio, sizeof(*pdata->audio),
847 return PTR_ERR(child);
850 if (twl_has_codec() && pdata->audio && twl_class_is_6030()) {
851 sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
852 child = add_child(sub_chip_id, "twl6040",
853 pdata->audio, sizeof(*pdata->audio),
856 return PTR_ERR(child);
859 /* twl4030 regulators */
860 if (twl_has_regulator() && twl_class_is_4030()) {
861 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
864 return PTR_ERR(child);
866 child = add_regulator(TWL4030_REG_VIO, pdata->vio,
869 return PTR_ERR(child);
871 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1,
874 return PTR_ERR(child);
876 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2,
879 return PTR_ERR(child);
881 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1,
884 return PTR_ERR(child);
886 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac,
889 return PTR_ERR(child);
891 child = add_regulator((features & TWL4030_VAUX2)
892 ? TWL4030_REG_VAUX2_4030
894 pdata->vaux2, features);
896 return PTR_ERR(child);
898 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1,
901 return PTR_ERR(child);
903 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2,
906 return PTR_ERR(child);
908 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig,
911 return PTR_ERR(child);
914 /* maybe add LDOs that are omitted on cost-reduced parts */
915 if (twl_has_regulator() && !(features & TPS_SUBSET)
916 && twl_class_is_4030()) {
917 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
920 return PTR_ERR(child);
922 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2,
925 return PTR_ERR(child);
927 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim,
930 return PTR_ERR(child);
932 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1,
935 return PTR_ERR(child);
937 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3,
940 return PTR_ERR(child);
942 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4,
945 return PTR_ERR(child);
948 /* twl6030 regulators */
949 if (twl_has_regulator() && twl_class_is_6030() &&
950 !(features & TWL6025_SUBCLASS)) {
951 child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1,
954 return PTR_ERR(child);
956 child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2,
959 return PTR_ERR(child);
961 child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3,
964 return PTR_ERR(child);
966 child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8,
969 return PTR_ERR(child);
971 child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1,
974 return PTR_ERR(child);
976 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc,
979 return PTR_ERR(child);
981 child = add_regulator(TWL6030_REG_VPP, pdata->vpp,
984 return PTR_ERR(child);
986 child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim,
989 return PTR_ERR(child);
991 child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio,
994 return PTR_ERR(child);
996 child = add_regulator(TWL6030_REG_VDAC, pdata->vdac,
999 return PTR_ERR(child);
1001 child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1,
1004 return PTR_ERR(child);
1006 child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2,
1009 return PTR_ERR(child);
1011 child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3,
1014 return PTR_ERR(child);
1016 child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg,
1019 return PTR_ERR(child);
1022 /* 6030 and 6025 share this regulator */
1023 if (twl_has_regulator() && twl_class_is_6030()) {
1024 child = add_regulator(TWL6030_REG_VANA, pdata->vana,
1027 return PTR_ERR(child);
1030 /* twl6025 regulators */
1031 if (twl_has_regulator() && twl_class_is_6030() &&
1032 (features & TWL6025_SUBCLASS)) {
1033 child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5,
1036 return PTR_ERR(child);
1038 child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1,
1041 return PTR_ERR(child);
1043 child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7,
1046 return PTR_ERR(child);
1048 child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6,
1051 return PTR_ERR(child);
1053 child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln,
1056 return PTR_ERR(child);
1058 child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2,
1061 return PTR_ERR(child);
1063 child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4,
1066 return PTR_ERR(child);
1068 child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3,
1071 return PTR_ERR(child);
1073 child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3,
1076 return PTR_ERR(child);
1078 child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4,
1081 return PTR_ERR(child);
1083 child = add_regulator(TWL6025_REG_VIO, pdata->vio6025,
1086 return PTR_ERR(child);
1090 if (twl_has_bci() && pdata->bci &&
1091 !(features & (TPS_SUBSET | TWL5031))) {
1092 child = add_child(3, "twl4030_bci",
1093 pdata->bci, sizeof(*pdata->bci), false,
1094 /* irq0 = CHG_PRES, irq1 = BCI */
1095 pdata->irq_base + BCI_PRES_INTR_OFFSET,
1096 pdata->irq_base + BCI_INTR_OFFSET);
1098 return PTR_ERR(child);
1104 /*----------------------------------------------------------------------*/
1107 * These three functions initialize the on-chip clock framework,
1108 * letting it generate the right frequencies for USB, MADC, and
1111 static inline int __init protect_pm_master(void)
1115 e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0,
1116 TWL4030_PM_MASTER_PROTECT_KEY);
1120 static inline int __init unprotect_pm_master(void)
1124 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
1125 TWL4030_PM_MASTER_KEY_CFG1,
1126 TWL4030_PM_MASTER_PROTECT_KEY);
1127 e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
1128 TWL4030_PM_MASTER_KEY_CFG2,
1129 TWL4030_PM_MASTER_PROTECT_KEY);
1134 static void clocks_init(struct device *dev,
1135 struct twl4030_clock_init_data *clock)
1140 u8 ctrl = HFCLK_FREQ_26_MHZ;
1142 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
1143 if (cpu_is_omap2430())
1144 osc = clk_get(dev, "osc_ck");
1146 osc = clk_get(dev, "osc_sys_ck");
1149 printk(KERN_WARNING "Skipping twl internal clock init and "
1150 "using bootloader value (unknown osc rate)\n");
1154 rate = clk_get_rate(osc);
1158 /* REVISIT for non-OMAP systems, pass the clock rate from
1159 * board init code, using platform_data.
1161 osc = ERR_PTR(-EIO);
1163 printk(KERN_WARNING "Skipping twl internal clock init and "
1164 "using bootloader value (unknown osc rate)\n");
1171 ctrl = HFCLK_FREQ_19p2_MHZ;
1174 ctrl = HFCLK_FREQ_26_MHZ;
1177 ctrl = HFCLK_FREQ_38p4_MHZ;
1181 ctrl |= HIGH_PERF_SQ;
1182 if (clock && clock->ck32k_lowpwr_enable)
1183 ctrl |= CK32K_LOWPWR_EN;
1185 e |= unprotect_pm_master();
1186 /* effect->MADC+USB ck en */
1187 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
1188 e |= protect_pm_master();
1191 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
1194 /*----------------------------------------------------------------------*/
1196 int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
1197 int twl4030_exit_irq(void);
1198 int twl4030_init_chip_irq(const char *chip);
1199 int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
1200 int twl6030_exit_irq(void);
1202 static int twl_remove(struct i2c_client *client)
1207 if (twl_class_is_4030())
1208 status = twl4030_exit_irq();
1210 status = twl6030_exit_irq();
1215 for (i = 0; i < TWL_NUM_SLAVES; i++) {
1216 struct twl_client *twl = &twl_modules[i];
1218 if (twl->client && twl->client != client)
1219 i2c_unregister_device(twl->client);
1220 twl_modules[i].client = NULL;
1226 /* NOTE: this driver only handles a single twl4030/tps659x0 chip */
1227 static int __devinit
1228 twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
1232 struct twl4030_platform_data *pdata = client->dev.platform_data;
1233 struct device_node *node = client->dev.of_node;
1236 int nr_irqs = TWL4030_NR_IRQS;
1238 if ((id->driver_data) & TWL6030_CLASS)
1239 nr_irqs = TWL6030_NR_IRQS;
1241 if (node && !pdata) {
1243 * XXX: Temporary pdata until the information is correctly
1244 * retrieved by every TWL modules from DT.
1246 pdata = devm_kzalloc(&client->dev,
1247 sizeof(struct twl4030_platform_data),
1254 dev_dbg(&client->dev, "no platform data?\n");
1258 status = irq_alloc_descs(-1, pdata->irq_base, nr_irqs, 0);
1259 if (IS_ERR_VALUE(status)) {
1260 dev_err(&client->dev, "Fail to allocate IRQ descs\n");
1264 pdata->irq_base = status;
1265 pdata->irq_end = pdata->irq_base + nr_irqs;
1266 irq_domain_add_legacy(node, nr_irqs, pdata->irq_base, 0,
1267 &irq_domain_simple_ops, NULL);
1269 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
1270 dev_dbg(&client->dev, "can't talk I2C?\n");
1275 dev_dbg(&client->dev, "driver is already in use\n");
1279 for (i = 0; i < TWL_NUM_SLAVES; i++) {
1280 struct twl_client *twl = &twl_modules[i];
1282 twl->address = client->addr + i;
1284 twl->client = client;
1286 twl->client = i2c_new_dummy(client->adapter,
1289 dev_err(&client->dev,
1290 "can't attach client %d\n", i);
1295 mutex_init(&twl->xfer_lock);
1298 if ((id->driver_data) & TWL6030_CLASS) {
1299 twl_id = TWL6030_CLASS_ID;
1300 twl_map = &twl6030_map[0];
1302 twl_id = TWL4030_CLASS_ID;
1303 twl_map = &twl4030_map[0];
1306 /* setup clock framework */
1307 clocks_init(&client->dev, pdata->clock);
1309 /* read TWL IDCODE Register */
1310 if (twl_id == TWL4030_CLASS_ID) {
1311 ret = twl_read_idcode_register();
1312 WARN(ret < 0, "Error: reading twl_idcode register value\n");
1315 /* load power event scripts */
1316 if (twl_has_power() && pdata->power)
1317 twl4030_power_init(pdata->power);
1319 /* Maybe init the T2 Interrupt subsystem */
1322 && pdata->irq_end > pdata->irq_base) {
1323 if (twl_class_is_4030()) {
1324 twl4030_init_chip_irq(id->name);
1325 status = twl4030_init_irq(client->irq, pdata->irq_base,
1328 status = twl6030_init_irq(client->irq, pdata->irq_base,
1336 /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1337 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1338 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1341 if (twl_class_is_4030()) {
1342 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
1343 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
1344 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
1345 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
1350 status = of_platform_populate(node, NULL, NULL, &client->dev);
1352 status = add_children(pdata, id->driver_data);
1360 static const struct i2c_device_id twl_ids[] = {
1361 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
1362 { "twl5030", 0 }, /* T2 updated */
1363 { "twl5031", TWL5031 }, /* TWL5030 updated */
1364 { "tps65950", 0 }, /* catalog version of twl5030 */
1365 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
1366 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
1367 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED
1368 and vibrator. Charger in USB module*/
1369 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
1370 { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */
1371 { /* end of list */ },
1373 MODULE_DEVICE_TABLE(i2c, twl_ids);
1375 /* One Client Driver , 4 Clients */
1376 static struct i2c_driver twl_driver = {
1377 .driver.name = DRIVER_NAME,
1378 .id_table = twl_ids,
1380 .remove = twl_remove,
1383 static int __init twl_init(void)
1385 return i2c_add_driver(&twl_driver);
1387 subsys_initcall(twl_init);
1389 static void __exit twl_exit(void)
1391 i2c_del_driver(&twl_driver);
1393 module_exit(twl_exit);
1395 MODULE_AUTHOR("Texas Instruments, Inc.");
1396 MODULE_DESCRIPTION("I2C Core interface for TWL");
1397 MODULE_LICENSE("GPL");