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>
52 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
53 * Management and System Companion Device" chips originally designed for
54 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
55 * often at around 3 Mbit/sec, including for interrupt handling.
57 * This driver core provides genirq support for the interrupts emitted,
58 * by the various modules, and exports register access primitives.
60 * FIXME this driver currently requires use of the first interrupt line
61 * (and associated registers).
64 #define DRIVER_NAME "twl"
66 #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
67 #define twl_has_keypad() true
69 #define twl_has_keypad() false
72 #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
73 #define twl_has_gpio() true
75 #define twl_has_gpio() false
78 #if defined(CONFIG_REGULATOR_TWL4030) \
79 || defined(CONFIG_REGULATOR_TWL4030_MODULE)
80 #define twl_has_regulator() true
82 #define twl_has_regulator() false
85 #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
86 #define twl_has_madc() true
88 #define twl_has_madc() false
91 #ifdef CONFIG_TWL4030_POWER
92 #define twl_has_power() true
94 #define twl_has_power() false
97 #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
98 #define twl_has_rtc() true
100 #define twl_has_rtc() false
103 #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
104 defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
105 #define twl_has_usb() true
107 #define twl_has_usb() false
110 #if defined(CONFIG_TWL4030_WATCHDOG) || \
111 defined(CONFIG_TWL4030_WATCHDOG_MODULE)
112 #define twl_has_watchdog() true
114 #define twl_has_watchdog() false
117 #if defined(CONFIG_MFD_TWL4030_AUDIO) || \
118 defined(CONFIG_MFD_TWL4030_AUDIO_MODULE)
119 #define twl_has_codec() true
121 #define twl_has_codec() false
124 #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
125 #define twl_has_bci() true
127 #define twl_has_bci() false
130 /* Triton Core internal information (BEGIN) */
132 /* Last - for index max*/
133 #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
135 #define TWL_NUM_SLAVES 4
137 #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
138 || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
139 #define twl_has_pwrbutton() true
141 #define twl_has_pwrbutton() false
144 #define SUB_CHIP_ID0 0
145 #define SUB_CHIP_ID1 1
146 #define SUB_CHIP_ID2 2
147 #define SUB_CHIP_ID3 3
148 #define SUB_CHIP_ID_INVAL 0xff
150 #define TWL_MODULE_LAST TWL4030_MODULE_LAST
152 /* Base Address defns for twl4030_map[] */
154 /* subchip/slave 0 - USB ID */
155 #define TWL4030_BASEADD_USB 0x0000
157 /* subchip/slave 1 - AUD ID */
158 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000
159 #define TWL4030_BASEADD_GPIO 0x0098
160 #define TWL4030_BASEADD_INTBR 0x0085
161 #define TWL4030_BASEADD_PIH 0x0080
162 #define TWL4030_BASEADD_TEST 0x004C
164 /* subchip/slave 2 - AUX ID */
165 #define TWL4030_BASEADD_INTERRUPTS 0x00B9
166 #define TWL4030_BASEADD_LED 0x00EE
167 #define TWL4030_BASEADD_MADC 0x0000
168 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074
169 #define TWL4030_BASEADD_PRECHARGE 0x00AA
170 #define TWL4030_BASEADD_PWM0 0x00F8
171 #define TWL4030_BASEADD_PWM1 0x00FB
172 #define TWL4030_BASEADD_PWMA 0x00EF
173 #define TWL4030_BASEADD_PWMB 0x00F1
174 #define TWL4030_BASEADD_KEYPAD 0x00D2
176 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
177 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
180 /* subchip/slave 3 - POWER ID */
181 #define TWL4030_BASEADD_BACKUP 0x0014
182 #define TWL4030_BASEADD_INT 0x002E
183 #define TWL4030_BASEADD_PM_MASTER 0x0036
184 #define TWL4030_BASEADD_PM_RECEIVER 0x005B
185 #define TWL4030_BASEADD_RTC 0x001C
186 #define TWL4030_BASEADD_SECURED_REG 0x0000
188 /* Triton Core internal information (END) */
191 /* subchip/slave 0 0x48 - POWER */
192 #define TWL6030_BASEADD_RTC 0x0000
193 #define TWL6030_BASEADD_MEM 0x0017
194 #define TWL6030_BASEADD_PM_MASTER 0x001F
195 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
196 #define TWL6030_BASEADD_PM_MISC 0x00E2
197 #define TWL6030_BASEADD_PM_PUPD 0x00F0
199 /* subchip/slave 1 0x49 - FEATURE */
200 #define TWL6030_BASEADD_USB 0x0000
201 #define TWL6030_BASEADD_GPADC_CTRL 0x002E
202 #define TWL6030_BASEADD_AUX 0x0090
203 #define TWL6030_BASEADD_PWM 0x00BA
204 #define TWL6030_BASEADD_GASGAUGE 0x00C0
205 #define TWL6030_BASEADD_PIH 0x00D0
206 #define TWL6030_BASEADD_CHARGER 0x00E0
207 #define TWL6025_BASEADD_CHARGER 0x00DA
209 /* subchip/slave 2 0x4A - DFT */
210 #define TWL6030_BASEADD_DIEID 0x00C0
212 /* subchip/slave 3 0x4B - AUDIO */
213 #define TWL6030_BASEADD_AUDIO 0x0000
214 #define TWL6030_BASEADD_RSV 0x0000
215 #define TWL6030_BASEADD_ZERO 0x0000
217 /* Few power values */
218 #define R_CFG_BOOT 0x05
220 /* some fields in R_CFG_BOOT */
221 #define HFCLK_FREQ_19p2_MHZ (1 << 0)
222 #define HFCLK_FREQ_26_MHZ (2 << 0)
223 #define HFCLK_FREQ_38p4_MHZ (3 << 0)
224 #define HIGH_PERF_SQ (1 << 3)
225 #define CK32K_LOWPWR_EN (1 << 7)
228 /* chip-specific feature flags, for i2c_device_id.driver_data */
229 #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
230 #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
231 #define TWL5031 BIT(2) /* twl5031 has different registers */
232 #define TWL6030_CLASS BIT(3) /* TWL6030 class */
234 /*----------------------------------------------------------------------*/
236 /* is driver active, bound to a chip? */
239 /* TWL IDCODE Register value */
240 static u32 twl_idcode
;
242 static unsigned int twl_id
;
243 unsigned int twl_rev(void)
247 EXPORT_SYMBOL(twl_rev
);
249 /* Structure for each TWL4030/TWL6030 Slave */
251 struct i2c_client
*client
;
254 /* max numb of i2c_msg required is for read =2 */
255 struct i2c_msg xfer_msg
[2];
257 /* To lock access to xfer_msg */
258 struct mutex xfer_lock
;
261 static struct twl_client twl_modules
[TWL_NUM_SLAVES
];
263 /* mapping the module id to slave id and base address */
265 unsigned char sid
; /* Slave ID */
266 unsigned char base
; /* base address */
268 static struct twl_mapping
*twl_map
;
270 static struct twl_mapping twl4030_map
[TWL4030_MODULE_LAST
+ 1] = {
272 * NOTE: don't change this table without updating the
273 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
274 * so they continue to match the order in this table.
277 { 0, TWL4030_BASEADD_USB
},
279 { 1, TWL4030_BASEADD_AUDIO_VOICE
},
280 { 1, TWL4030_BASEADD_GPIO
},
281 { 1, TWL4030_BASEADD_INTBR
},
282 { 1, TWL4030_BASEADD_PIH
},
283 { 1, TWL4030_BASEADD_TEST
},
285 { 2, TWL4030_BASEADD_KEYPAD
},
286 { 2, TWL4030_BASEADD_MADC
},
287 { 2, TWL4030_BASEADD_INTERRUPTS
},
288 { 2, TWL4030_BASEADD_LED
},
289 { 2, TWL4030_BASEADD_MAIN_CHARGE
},
290 { 2, TWL4030_BASEADD_PRECHARGE
},
291 { 2, TWL4030_BASEADD_PWM0
},
292 { 2, TWL4030_BASEADD_PWM1
},
293 { 2, TWL4030_BASEADD_PWMA
},
294 { 2, TWL4030_BASEADD_PWMB
},
295 { 2, TWL5031_BASEADD_ACCESSORY
},
296 { 2, TWL5031_BASEADD_INTERRUPTS
},
298 { 3, TWL4030_BASEADD_BACKUP
},
299 { 3, TWL4030_BASEADD_INT
},
300 { 3, TWL4030_BASEADD_PM_MASTER
},
301 { 3, TWL4030_BASEADD_PM_RECEIVER
},
302 { 3, TWL4030_BASEADD_RTC
},
303 { 3, TWL4030_BASEADD_SECURED_REG
},
306 static struct twl_mapping twl6030_map
[] = {
308 * NOTE: don't change this table without updating the
309 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
310 * so they continue to match the order in this table.
312 { SUB_CHIP_ID1
, TWL6030_BASEADD_USB
},
313 { SUB_CHIP_ID_INVAL
, TWL6030_BASEADD_AUDIO
},
314 { SUB_CHIP_ID2
, TWL6030_BASEADD_DIEID
},
315 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
316 { SUB_CHIP_ID1
, TWL6030_BASEADD_PIH
},
318 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
319 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
320 { SUB_CHIP_ID1
, TWL6030_BASEADD_GPADC_CTRL
},
321 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
322 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
324 { SUB_CHIP_ID1
, TWL6030_BASEADD_CHARGER
},
325 { SUB_CHIP_ID1
, TWL6030_BASEADD_GASGAUGE
},
326 { SUB_CHIP_ID1
, TWL6030_BASEADD_PWM
},
327 { SUB_CHIP_ID0
, TWL6030_BASEADD_ZERO
},
328 { SUB_CHIP_ID1
, TWL6030_BASEADD_ZERO
},
330 { SUB_CHIP_ID2
, TWL6030_BASEADD_ZERO
},
331 { SUB_CHIP_ID2
, TWL6030_BASEADD_ZERO
},
332 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
333 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
334 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
335 { SUB_CHIP_ID0
, TWL6030_BASEADD_PM_MASTER
},
336 { SUB_CHIP_ID0
, TWL6030_BASEADD_PM_SLAVE_MISC
},
338 { SUB_CHIP_ID0
, TWL6030_BASEADD_RTC
},
339 { SUB_CHIP_ID0
, TWL6030_BASEADD_MEM
},
340 { SUB_CHIP_ID1
, TWL6025_BASEADD_CHARGER
},
343 /*----------------------------------------------------------------------*/
345 /* Exported Functions */
348 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
349 * @mod_no: module number
350 * @value: an array of num_bytes+1 containing data to write
351 * @reg: register address (just offset will do)
352 * @num_bytes: number of bytes to transfer
354 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
355 * valid data starts at Offset 1.
357 * Returns the result of operation - 0 is success
359 int twl_i2c_write(u8 mod_no
, u8
*value
, u8 reg
, unsigned num_bytes
)
363 struct twl_client
*twl
;
366 if (unlikely(mod_no
> TWL_MODULE_LAST
)) {
367 pr_err("%s: invalid module number %d\n", DRIVER_NAME
, mod_no
);
370 if (unlikely(!inuse
)) {
371 pr_err("%s: not initialized\n", DRIVER_NAME
);
374 sid
= twl_map
[mod_no
].sid
;
375 if (unlikely(sid
== SUB_CHIP_ID_INVAL
)) {
376 pr_err("%s: module %d is not part of the pmic\n",
377 DRIVER_NAME
, mod_no
);
380 twl
= &twl_modules
[sid
];
382 mutex_lock(&twl
->xfer_lock
);
384 * [MSG1]: fill the register address data
385 * fill the data Tx buffer
387 msg
= &twl
->xfer_msg
[0];
388 msg
->addr
= twl
->address
;
389 msg
->len
= num_bytes
+ 1;
392 /* over write the first byte of buffer with the register address */
393 *value
= twl_map
[mod_no
].base
+ reg
;
394 ret
= i2c_transfer(twl
->client
->adapter
, twl
->xfer_msg
, 1);
395 mutex_unlock(&twl
->xfer_lock
);
397 /* i2c_transfer returns number of messages transferred */
399 pr_err("%s: i2c_write failed to transfer all messages\n",
409 EXPORT_SYMBOL(twl_i2c_write
);
412 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
413 * @mod_no: module number
414 * @value: an array of num_bytes containing data to be read
415 * @reg: register address (just offset will do)
416 * @num_bytes: number of bytes to transfer
418 * Returns result of operation - num_bytes is success else failure.
420 int twl_i2c_read(u8 mod_no
, u8
*value
, u8 reg
, unsigned num_bytes
)
425 struct twl_client
*twl
;
428 if (unlikely(mod_no
> TWL_MODULE_LAST
)) {
429 pr_err("%s: invalid module number %d\n", DRIVER_NAME
, mod_no
);
432 if (unlikely(!inuse
)) {
433 pr_err("%s: not initialized\n", DRIVER_NAME
);
436 sid
= twl_map
[mod_no
].sid
;
437 if (unlikely(sid
== SUB_CHIP_ID_INVAL
)) {
438 pr_err("%s: module %d is not part of the pmic\n",
439 DRIVER_NAME
, mod_no
);
442 twl
= &twl_modules
[sid
];
444 mutex_lock(&twl
->xfer_lock
);
445 /* [MSG1] fill the register address data */
446 msg
= &twl
->xfer_msg
[0];
447 msg
->addr
= twl
->address
;
449 msg
->flags
= 0; /* Read the register value */
450 val
= twl_map
[mod_no
].base
+ reg
;
452 /* [MSG2] fill the data rx buffer */
453 msg
= &twl
->xfer_msg
[1];
454 msg
->addr
= twl
->address
;
455 msg
->flags
= I2C_M_RD
; /* Read the register value */
456 msg
->len
= num_bytes
; /* only n bytes */
458 ret
= i2c_transfer(twl
->client
->adapter
, twl
->xfer_msg
, 2);
459 mutex_unlock(&twl
->xfer_lock
);
461 /* i2c_transfer returns number of messages transferred */
463 pr_err("%s: i2c_read failed to transfer all messages\n",
473 EXPORT_SYMBOL(twl_i2c_read
);
476 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
477 * @mod_no: module number
478 * @value: the value to be written 8 bit
479 * @reg: register address (just offset will do)
481 * Returns result of operation - 0 is success
483 int twl_i2c_write_u8(u8 mod_no
, u8 value
, u8 reg
)
486 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
487 u8 temp_buffer
[2] = { 0 };
488 /* offset 1 contains the data */
489 temp_buffer
[1] = value
;
490 return twl_i2c_write(mod_no
, temp_buffer
, reg
, 1);
492 EXPORT_SYMBOL(twl_i2c_write_u8
);
495 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
496 * @mod_no: module number
497 * @value: the value read 8 bit
498 * @reg: register address (just offset will do)
500 * Returns result of operation - 0 is success
502 int twl_i2c_read_u8(u8 mod_no
, u8
*value
, u8 reg
)
504 return twl_i2c_read(mod_no
, value
, reg
, 1);
506 EXPORT_SYMBOL(twl_i2c_read_u8
);
508 /*----------------------------------------------------------------------*/
511 * twl_read_idcode_register - API to read the IDCODE register.
513 * Unlocks the IDCODE register and read the 32 bit value.
515 static int twl_read_idcode_register(void)
519 err
= twl_i2c_write_u8(TWL4030_MODULE_INTBR
, TWL_EEPROM_R_UNLOCK
,
520 REG_UNLOCK_TEST_REG
);
522 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err
);
526 err
= twl_i2c_read(TWL4030_MODULE_INTBR
, (u8
*)(&twl_idcode
),
529 pr_err("TWL4030: unable to read IDCODE -%d\n", err
);
533 err
= twl_i2c_write_u8(TWL4030_MODULE_INTBR
, 0x0, REG_UNLOCK_TEST_REG
);
535 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err
);
541 * twl_get_type - API to get TWL Si type.
543 * Api to get the TWL Si type from IDCODE value.
545 int twl_get_type(void)
547 return TWL_SIL_TYPE(twl_idcode
);
549 EXPORT_SYMBOL_GPL(twl_get_type
);
552 * twl_get_version - API to get TWL Si version.
554 * Api to get the TWL Si version from IDCODE value.
556 int twl_get_version(void)
558 return TWL_SIL_REV(twl_idcode
);
560 EXPORT_SYMBOL_GPL(twl_get_version
);
562 static struct device
*
563 add_numbered_child(unsigned chip
, const char *name
, int num
,
564 void *pdata
, unsigned pdata_len
,
565 bool can_wakeup
, int irq0
, int irq1
)
567 struct platform_device
*pdev
;
568 struct twl_client
*twl
= &twl_modules
[chip
];
571 pdev
= platform_device_alloc(name
, num
);
573 dev_dbg(&twl
->client
->dev
, "can't alloc dev\n");
578 device_init_wakeup(&pdev
->dev
, can_wakeup
);
579 pdev
->dev
.parent
= &twl
->client
->dev
;
582 status
= platform_device_add_data(pdev
, pdata
, pdata_len
);
584 dev_dbg(&pdev
->dev
, "can't add platform_data\n");
590 struct resource r
[2] = {
591 { .start
= irq0
, .flags
= IORESOURCE_IRQ
, },
592 { .start
= irq1
, .flags
= IORESOURCE_IRQ
, },
595 status
= platform_device_add_resources(pdev
, r
, irq1
? 2 : 1);
597 dev_dbg(&pdev
->dev
, "can't add irqs\n");
602 status
= platform_device_add(pdev
);
606 platform_device_put(pdev
);
607 dev_err(&twl
->client
->dev
, "can't add %s dev\n", name
);
608 return ERR_PTR(status
);
613 static inline struct device
*add_child(unsigned chip
, const char *name
,
614 void *pdata
, unsigned pdata_len
,
615 bool can_wakeup
, int irq0
, int irq1
)
617 return add_numbered_child(chip
, name
, -1, pdata
, pdata_len
,
618 can_wakeup
, irq0
, irq1
);
621 static struct device
*
622 add_regulator_linked(int num
, struct regulator_init_data
*pdata
,
623 struct regulator_consumer_supply
*consumers
,
624 unsigned num_consumers
, unsigned long features
)
626 unsigned sub_chip_id
;
627 struct twl_regulator_driver_data drv_data
;
629 /* regulator framework demands init_data ... */
634 pdata
->consumer_supplies
= consumers
;
635 pdata
->num_consumer_supplies
= num_consumers
;
638 if (pdata
->driver_data
) {
639 /* If we have existing drv_data, just add the flags */
640 struct twl_regulator_driver_data
*tmp
;
641 tmp
= pdata
->driver_data
;
642 tmp
->features
|= features
;
644 /* add new driver data struct, used only during init */
645 drv_data
.features
= features
;
646 drv_data
.set_voltage
= NULL
;
647 drv_data
.get_voltage
= NULL
;
648 drv_data
.data
= NULL
;
649 pdata
->driver_data
= &drv_data
;
652 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
653 sub_chip_id
= twl_map
[TWL_MODULE_PM_MASTER
].sid
;
654 return add_numbered_child(sub_chip_id
, "twl_reg", num
,
655 pdata
, sizeof(*pdata
), false, 0, 0);
658 static struct device
*
659 add_regulator(int num
, struct regulator_init_data
*pdata
,
660 unsigned long features
)
662 return add_regulator_linked(num
, pdata
, NULL
, 0, features
);
666 * NOTE: We know the first 8 IRQs after pdata->base_irq are
667 * for the PIH, and the next are for the PWR_INT SIH, since
668 * that's how twl_init_irq() sets things up.
672 add_children(struct twl4030_platform_data
*pdata
, unsigned irq_base
,
673 unsigned long features
)
675 struct device
*child
;
676 unsigned sub_chip_id
;
678 if (twl_has_gpio() && pdata
->gpio
) {
679 child
= add_child(SUB_CHIP_ID1
, "twl4030_gpio",
680 pdata
->gpio
, sizeof(*pdata
->gpio
),
681 false, irq_base
+ GPIO_INTR_OFFSET
, 0);
683 return PTR_ERR(child
);
686 if (twl_has_keypad() && pdata
->keypad
) {
687 child
= add_child(SUB_CHIP_ID2
, "twl4030_keypad",
688 pdata
->keypad
, sizeof(*pdata
->keypad
),
689 true, irq_base
+ KEYPAD_INTR_OFFSET
, 0);
691 return PTR_ERR(child
);
694 if (twl_has_madc() && pdata
->madc
) {
695 child
= add_child(2, "twl4030_madc",
696 pdata
->madc
, sizeof(*pdata
->madc
),
697 true, irq_base
+ MADC_INTR_OFFSET
, 0);
699 return PTR_ERR(child
);
704 * REVISIT platform_data here currently might expose the
705 * "msecure" line ... but for now we just expect board
706 * setup to tell the chip "it's always ok to SET_TIME".
707 * Eventually, Linux might become more aware of such
708 * HW security concerns, and "least privilege".
710 sub_chip_id
= twl_map
[TWL_MODULE_RTC
].sid
;
711 child
= add_child(sub_chip_id
, "twl_rtc",
713 true, irq_base
+ RTC_INTR_OFFSET
, 0);
715 return PTR_ERR(child
);
718 if (twl_has_usb() && pdata
->usb
&& twl_class_is_4030()) {
720 static struct regulator_consumer_supply usb1v5
= {
723 static struct regulator_consumer_supply usb1v8
= {
726 static struct regulator_consumer_supply usb3v1
= {
730 /* First add the regulators so that they can be used by transceiver */
731 if (twl_has_regulator()) {
732 /* this is a template that gets copied */
733 struct regulator_init_data usb_fixed
= {
734 .constraints
.valid_modes_mask
=
735 REGULATOR_MODE_NORMAL
736 | REGULATOR_MODE_STANDBY
,
737 .constraints
.valid_ops_mask
=
738 REGULATOR_CHANGE_MODE
739 | REGULATOR_CHANGE_STATUS
,
742 child
= add_regulator_linked(TWL4030_REG_VUSB1V5
,
743 &usb_fixed
, &usb1v5
, 1,
746 return PTR_ERR(child
);
748 child
= add_regulator_linked(TWL4030_REG_VUSB1V8
,
749 &usb_fixed
, &usb1v8
, 1,
752 return PTR_ERR(child
);
754 child
= add_regulator_linked(TWL4030_REG_VUSB3V1
,
755 &usb_fixed
, &usb3v1
, 1,
758 return PTR_ERR(child
);
762 child
= add_child(0, "twl4030_usb",
763 pdata
->usb
, sizeof(*pdata
->usb
),
765 /* irq0 = USB_PRES, irq1 = USB */
766 irq_base
+ USB_PRES_INTR_OFFSET
,
767 irq_base
+ USB_INTR_OFFSET
);
770 return PTR_ERR(child
);
772 /* we need to connect regulators to this transceiver */
773 if (twl_has_regulator() && child
) {
774 usb1v5
.dev_name
= dev_name(child
);
775 usb1v8
.dev_name
= dev_name(child
);
776 usb3v1
.dev_name
= dev_name(child
);
779 if (twl_has_usb() && pdata
->usb
&& twl_class_is_6030()) {
781 static struct regulator_consumer_supply usb3v3
;
784 if (twl_has_regulator()) {
785 /* this is a template that gets copied */
786 struct regulator_init_data usb_fixed
= {
787 .constraints
.valid_modes_mask
=
788 REGULATOR_MODE_NORMAL
789 | REGULATOR_MODE_STANDBY
,
790 .constraints
.valid_ops_mask
=
791 REGULATOR_CHANGE_MODE
792 | REGULATOR_CHANGE_STATUS
,
795 if (features
& TWL6025_SUBCLASS
) {
796 usb3v3
.supply
= "ldousb";
797 regulator
= TWL6025_REG_LDOUSB
;
799 usb3v3
.supply
= "vusb";
800 regulator
= TWL6030_REG_VUSB
;
802 child
= add_regulator_linked(regulator
, &usb_fixed
,
806 return PTR_ERR(child
);
809 pdata
->usb
->features
= features
;
811 child
= add_child(0, "twl6030_usb",
812 pdata
->usb
, sizeof(*pdata
->usb
),
814 /* irq1 = VBUS_PRES, irq0 = USB ID */
815 irq_base
+ USBOTG_INTR_OFFSET
,
816 irq_base
+ USB_PRES_INTR_OFFSET
);
819 return PTR_ERR(child
);
820 /* we need to connect regulators to this transceiver */
821 if (twl_has_regulator() && child
)
822 usb3v3
.dev_name
= dev_name(child
);
823 } else if (twl_has_regulator() && twl_class_is_6030()) {
824 if (features
& TWL6025_SUBCLASS
)
825 child
= add_regulator(TWL6025_REG_LDOUSB
,
826 pdata
->ldousb
, features
);
828 child
= add_regulator(TWL6030_REG_VUSB
,
829 pdata
->vusb
, features
);
832 return PTR_ERR(child
);
835 if (twl_has_watchdog() && twl_class_is_4030()) {
836 child
= add_child(0, "twl4030_wdt", NULL
, 0, false, 0, 0);
838 return PTR_ERR(child
);
841 if (twl_has_pwrbutton() && twl_class_is_4030()) {
842 child
= add_child(1, "twl4030_pwrbutton",
843 NULL
, 0, true, irq_base
+ 8 + 0, 0);
845 return PTR_ERR(child
);
848 if (twl_has_codec() && pdata
->audio
&& twl_class_is_4030()) {
849 sub_chip_id
= twl_map
[TWL_MODULE_AUDIO_VOICE
].sid
;
850 child
= add_child(sub_chip_id
, "twl4030-audio",
851 pdata
->audio
, sizeof(*pdata
->audio
),
854 return PTR_ERR(child
);
857 /* twl4030 regulators */
858 if (twl_has_regulator() && twl_class_is_4030()) {
859 child
= add_regulator(TWL4030_REG_VPLL1
, pdata
->vpll1
,
862 return PTR_ERR(child
);
864 child
= add_regulator(TWL4030_REG_VIO
, pdata
->vio
,
867 return PTR_ERR(child
);
869 child
= add_regulator(TWL4030_REG_VDD1
, pdata
->vdd1
,
872 return PTR_ERR(child
);
874 child
= add_regulator(TWL4030_REG_VDD2
, pdata
->vdd2
,
877 return PTR_ERR(child
);
879 child
= add_regulator(TWL4030_REG_VMMC1
, pdata
->vmmc1
,
882 return PTR_ERR(child
);
884 child
= add_regulator(TWL4030_REG_VDAC
, pdata
->vdac
,
887 return PTR_ERR(child
);
889 child
= add_regulator((features
& TWL4030_VAUX2
)
890 ? TWL4030_REG_VAUX2_4030
892 pdata
->vaux2
, features
);
894 return PTR_ERR(child
);
896 child
= add_regulator(TWL4030_REG_VINTANA1
, pdata
->vintana1
,
899 return PTR_ERR(child
);
901 child
= add_regulator(TWL4030_REG_VINTANA2
, pdata
->vintana2
,
904 return PTR_ERR(child
);
906 child
= add_regulator(TWL4030_REG_VINTDIG
, pdata
->vintdig
,
909 return PTR_ERR(child
);
912 /* maybe add LDOs that are omitted on cost-reduced parts */
913 if (twl_has_regulator() && !(features
& TPS_SUBSET
)
914 && twl_class_is_4030()) {
915 child
= add_regulator(TWL4030_REG_VPLL2
, pdata
->vpll2
,
918 return PTR_ERR(child
);
920 child
= add_regulator(TWL4030_REG_VMMC2
, pdata
->vmmc2
,
923 return PTR_ERR(child
);
925 child
= add_regulator(TWL4030_REG_VSIM
, pdata
->vsim
,
928 return PTR_ERR(child
);
930 child
= add_regulator(TWL4030_REG_VAUX1
, pdata
->vaux1
,
933 return PTR_ERR(child
);
935 child
= add_regulator(TWL4030_REG_VAUX3
, pdata
->vaux3
,
938 return PTR_ERR(child
);
940 child
= add_regulator(TWL4030_REG_VAUX4
, pdata
->vaux4
,
943 return PTR_ERR(child
);
946 /* twl6030 regulators */
947 if (twl_has_regulator() && twl_class_is_6030() &&
948 !(features
& TWL6025_SUBCLASS
)) {
949 child
= add_regulator(TWL6030_REG_VDD1
, pdata
->vdd1
,
952 return PTR_ERR(child
);
954 child
= add_regulator(TWL6030_REG_VDD2
, pdata
->vdd2
,
957 return PTR_ERR(child
);
959 child
= add_regulator(TWL6030_REG_VDD3
, pdata
->vdd3
,
962 return PTR_ERR(child
);
964 child
= add_regulator(TWL6030_REG_V1V8
, pdata
->v1v8
,
967 return PTR_ERR(child
);
969 child
= add_regulator(TWL6030_REG_V2V1
, pdata
->v2v1
,
972 return PTR_ERR(child
);
974 child
= add_regulator(TWL6030_REG_VMMC
, pdata
->vmmc
,
977 return PTR_ERR(child
);
979 child
= add_regulator(TWL6030_REG_VPP
, pdata
->vpp
,
982 return PTR_ERR(child
);
984 child
= add_regulator(TWL6030_REG_VUSIM
, pdata
->vusim
,
987 return PTR_ERR(child
);
989 child
= add_regulator(TWL6030_REG_VCXIO
, pdata
->vcxio
,
992 return PTR_ERR(child
);
994 child
= add_regulator(TWL6030_REG_VDAC
, pdata
->vdac
,
997 return PTR_ERR(child
);
999 child
= add_regulator(TWL6030_REG_VAUX1_6030
, pdata
->vaux1
,
1002 return PTR_ERR(child
);
1004 child
= add_regulator(TWL6030_REG_VAUX2_6030
, pdata
->vaux2
,
1007 return PTR_ERR(child
);
1009 child
= add_regulator(TWL6030_REG_VAUX3_6030
, pdata
->vaux3
,
1012 return PTR_ERR(child
);
1014 child
= add_regulator(TWL6030_REG_CLK32KG
, pdata
->clk32kg
,
1017 return PTR_ERR(child
);
1020 /* 6030 and 6025 share this regulator */
1021 if (twl_has_regulator() && twl_class_is_6030()) {
1022 child
= add_regulator(TWL6030_REG_VANA
, pdata
->vana
,
1025 return PTR_ERR(child
);
1028 /* twl6025 regulators */
1029 if (twl_has_regulator() && twl_class_is_6030() &&
1030 (features
& TWL6025_SUBCLASS
)) {
1031 child
= add_regulator(TWL6025_REG_LDO5
, pdata
->ldo5
,
1034 return PTR_ERR(child
);
1036 child
= add_regulator(TWL6025_REG_LDO1
, pdata
->ldo1
,
1039 return PTR_ERR(child
);
1041 child
= add_regulator(TWL6025_REG_LDO7
, pdata
->ldo7
,
1044 return PTR_ERR(child
);
1046 child
= add_regulator(TWL6025_REG_LDO6
, pdata
->ldo6
,
1049 return PTR_ERR(child
);
1051 child
= add_regulator(TWL6025_REG_LDOLN
, pdata
->ldoln
,
1054 return PTR_ERR(child
);
1056 child
= add_regulator(TWL6025_REG_LDO2
, pdata
->ldo2
,
1059 return PTR_ERR(child
);
1061 child
= add_regulator(TWL6025_REG_LDO4
, pdata
->ldo4
,
1064 return PTR_ERR(child
);
1066 child
= add_regulator(TWL6025_REG_LDO3
, pdata
->ldo3
,
1069 return PTR_ERR(child
);
1071 child
= add_regulator(TWL6025_REG_SMPS3
, pdata
->smps3
,
1074 return PTR_ERR(child
);
1076 child
= add_regulator(TWL6025_REG_SMPS4
, pdata
->smps4
,
1079 return PTR_ERR(child
);
1081 child
= add_regulator(TWL6025_REG_VIO
, pdata
->vio6025
,
1084 return PTR_ERR(child
);
1088 if (twl_has_bci() && pdata
->bci
&&
1089 !(features
& (TPS_SUBSET
| TWL5031
))) {
1090 child
= add_child(3, "twl4030_bci",
1091 pdata
->bci
, sizeof(*pdata
->bci
), false,
1092 /* irq0 = CHG_PRES, irq1 = BCI */
1093 irq_base
+ BCI_PRES_INTR_OFFSET
,
1094 irq_base
+ BCI_INTR_OFFSET
);
1096 return PTR_ERR(child
);
1102 /*----------------------------------------------------------------------*/
1105 * These three functions initialize the on-chip clock framework,
1106 * letting it generate the right frequencies for USB, MADC, and
1109 static inline int __init
protect_pm_master(void)
1113 e
= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
, 0,
1114 TWL4030_PM_MASTER_PROTECT_KEY
);
1118 static inline int __init
unprotect_pm_master(void)
1122 e
|= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
,
1123 TWL4030_PM_MASTER_KEY_CFG1
,
1124 TWL4030_PM_MASTER_PROTECT_KEY
);
1125 e
|= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
,
1126 TWL4030_PM_MASTER_KEY_CFG2
,
1127 TWL4030_PM_MASTER_PROTECT_KEY
);
1132 static void clocks_init(struct device
*dev
,
1133 struct twl4030_clock_init_data
*clock
)
1138 u8 ctrl
= HFCLK_FREQ_26_MHZ
;
1140 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
1141 if (cpu_is_omap2430())
1142 osc
= clk_get(dev
, "osc_ck");
1144 osc
= clk_get(dev
, "osc_sys_ck");
1147 printk(KERN_WARNING
"Skipping twl internal clock init and "
1148 "using bootloader value (unknown osc rate)\n");
1152 rate
= clk_get_rate(osc
);
1156 /* REVISIT for non-OMAP systems, pass the clock rate from
1157 * board init code, using platform_data.
1159 osc
= ERR_PTR(-EIO
);
1161 printk(KERN_WARNING
"Skipping twl internal clock init and "
1162 "using bootloader value (unknown osc rate)\n");
1169 ctrl
= HFCLK_FREQ_19p2_MHZ
;
1172 ctrl
= HFCLK_FREQ_26_MHZ
;
1175 ctrl
= HFCLK_FREQ_38p4_MHZ
;
1179 ctrl
|= HIGH_PERF_SQ
;
1180 if (clock
&& clock
->ck32k_lowpwr_enable
)
1181 ctrl
|= CK32K_LOWPWR_EN
;
1183 e
|= unprotect_pm_master();
1184 /* effect->MADC+USB ck en */
1185 e
|= twl_i2c_write_u8(TWL_MODULE_PM_MASTER
, ctrl
, R_CFG_BOOT
);
1186 e
|= protect_pm_master();
1189 pr_err("%s: clock init err [%d]\n", DRIVER_NAME
, e
);
1192 /*----------------------------------------------------------------------*/
1195 static int twl_remove(struct i2c_client
*client
)
1197 unsigned i
, num_slaves
;
1200 if (twl_class_is_4030()) {
1201 status
= twl4030_exit_irq();
1202 num_slaves
= TWL_NUM_SLAVES
;
1204 status
= twl6030_exit_irq();
1205 num_slaves
= TWL_NUM_SLAVES
- 1;
1211 for (i
= 0; i
< num_slaves
; i
++) {
1212 struct twl_client
*twl
= &twl_modules
[i
];
1214 if (twl
->client
&& twl
->client
!= client
)
1215 i2c_unregister_device(twl
->client
);
1216 twl_modules
[i
].client
= NULL
;
1222 /* NOTE: This driver only handles a single twl4030/tps659x0 chip */
1223 static int __devinit
1224 twl_probe(struct i2c_client
*client
, const struct i2c_device_id
*id
)
1226 struct twl4030_platform_data
*pdata
= client
->dev
.platform_data
;
1227 struct device_node
*node
= client
->dev
.of_node
;
1230 unsigned i
, num_slaves
;
1232 if (node
&& !pdata
) {
1234 * XXX: Temporary pdata until the information is correctly
1235 * retrieved by every TWL modules from DT.
1237 pdata
= devm_kzalloc(&client
->dev
,
1238 sizeof(struct twl4030_platform_data
),
1245 dev_dbg(&client
->dev
, "no platform data?\n");
1249 if (i2c_check_functionality(client
->adapter
, I2C_FUNC_I2C
) == 0) {
1250 dev_dbg(&client
->dev
, "can't talk I2C?\n");
1255 dev_dbg(&client
->dev
, "driver is already in use\n");
1259 if ((id
->driver_data
) & TWL6030_CLASS
) {
1260 twl_id
= TWL6030_CLASS_ID
;
1261 twl_map
= &twl6030_map
[0];
1262 num_slaves
= TWL_NUM_SLAVES
- 1;
1264 twl_id
= TWL4030_CLASS_ID
;
1265 twl_map
= &twl4030_map
[0];
1266 num_slaves
= TWL_NUM_SLAVES
;
1269 for (i
= 0; i
< num_slaves
; i
++) {
1270 struct twl_client
*twl
= &twl_modules
[i
];
1272 twl
->address
= client
->addr
+ i
;
1274 twl
->client
= client
;
1276 twl
->client
= i2c_new_dummy(client
->adapter
,
1279 dev_err(&client
->dev
,
1280 "can't attach client %d\n", i
);
1285 mutex_init(&twl
->xfer_lock
);
1290 /* setup clock framework */
1291 clocks_init(&client
->dev
, pdata
->clock
);
1293 /* read TWL IDCODE Register */
1294 if (twl_id
== TWL4030_CLASS_ID
) {
1295 status
= twl_read_idcode_register();
1296 WARN(status
< 0, "Error: reading twl_idcode register value\n");
1299 /* load power event scripts */
1300 if (twl_has_power() && pdata
->power
)
1301 twl4030_power_init(pdata
->power
);
1303 /* Maybe init the T2 Interrupt subsystem */
1305 if (twl_class_is_4030()) {
1306 twl4030_init_chip_irq(id
->name
);
1307 irq_base
= twl4030_init_irq(&client
->dev
, client
->irq
);
1309 irq_base
= twl6030_init_irq(&client
->dev
, client
->irq
);
1319 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1320 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1321 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1323 if (twl_class_is_4030()) {
1326 twl_i2c_read_u8(TWL4030_MODULE_INTBR
, &temp
, REG_GPPUPDCTR1
);
1327 temp
&= ~(SR_I2C_SDA_CTRL_PU
| SR_I2C_SCL_CTRL_PU
| \
1328 I2C_SDA_CTRL_PU
| I2C_SCL_CTRL_PU
);
1329 twl_i2c_write_u8(TWL4030_MODULE_INTBR
, temp
, REG_GPPUPDCTR1
);
1334 status
= of_platform_populate(node
, NULL
, NULL
, &client
->dev
);
1336 status
= add_children(pdata
, irq_base
, id
->driver_data
);
1345 static const struct i2c_device_id twl_ids
[] = {
1346 { "twl4030", TWL4030_VAUX2
}, /* "Triton 2" */
1347 { "twl5030", 0 }, /* T2 updated */
1348 { "twl5031", TWL5031
}, /* TWL5030 updated */
1349 { "tps65950", 0 }, /* catalog version of twl5030 */
1350 { "tps65930", TPS_SUBSET
}, /* fewer LDOs and DACs; no charger */
1351 { "tps65920", TPS_SUBSET
}, /* fewer LDOs; no codec or charger */
1352 { "tps65921", TPS_SUBSET
}, /* fewer LDOs; no codec, no LED
1353 and vibrator. Charger in USB module*/
1354 { "twl6030", TWL6030_CLASS
}, /* "Phoenix power chip" */
1355 { "twl6025", TWL6030_CLASS
| TWL6025_SUBCLASS
}, /* "Phoenix lite" */
1356 { /* end of list */ },
1358 MODULE_DEVICE_TABLE(i2c
, twl_ids
);
1360 /* One Client Driver , 4 Clients */
1361 static struct i2c_driver twl_driver
= {
1362 .driver
.name
= DRIVER_NAME
,
1363 .id_table
= twl_ids
,
1365 .remove
= twl_remove
,
1368 static int __init
twl_init(void)
1370 return i2c_add_driver(&twl_driver
);
1372 subsys_initcall(twl_init
);
1374 static void __exit
twl_exit(void)
1376 i2c_del_driver(&twl_driver
);
1378 module_exit(twl_exit
);
1380 MODULE_AUTHOR("Texas Instruments, Inc.");
1381 MODULE_DESCRIPTION("I2C Core interface for TWL");
1382 MODULE_LICENSE("GPL");