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/irqdomain.h>
43 #include <linux/regulator/machine.h>
45 #include <linux/i2c.h>
46 #include <linux/i2c/twl.h>
48 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
53 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
54 * Management and System Companion Device" chips originally designed for
55 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
56 * often at around 3 Mbit/sec, including for interrupt handling.
58 * This driver core provides genirq support for the interrupts emitted,
59 * by the various modules, and exports register access primitives.
61 * FIXME this driver currently requires use of the first interrupt line
62 * (and associated registers).
65 #define DRIVER_NAME "twl"
67 #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
68 #define twl_has_keypad() true
70 #define twl_has_keypad() false
73 #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
74 #define twl_has_gpio() true
76 #define twl_has_gpio() false
79 #if defined(CONFIG_REGULATOR_TWL4030) \
80 || defined(CONFIG_REGULATOR_TWL4030_MODULE)
81 #define twl_has_regulator() true
83 #define twl_has_regulator() false
86 #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
87 #define twl_has_madc() true
89 #define twl_has_madc() false
92 #ifdef CONFIG_TWL4030_POWER
93 #define twl_has_power() true
95 #define twl_has_power() false
98 #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
99 #define twl_has_rtc() true
101 #define twl_has_rtc() false
104 #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
105 defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
106 #define twl_has_usb() true
108 #define twl_has_usb() false
111 #if defined(CONFIG_TWL4030_WATCHDOG) || \
112 defined(CONFIG_TWL4030_WATCHDOG_MODULE)
113 #define twl_has_watchdog() true
115 #define twl_has_watchdog() false
118 #if defined(CONFIG_MFD_TWL4030_AUDIO) || defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) ||\
119 defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE)
120 #define twl_has_codec() true
122 #define twl_has_codec() false
125 #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
126 #define twl_has_bci() true
128 #define twl_has_bci() false
131 /* Triton Core internal information (BEGIN) */
133 /* Last - for index max*/
134 #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
136 #define TWL_NUM_SLAVES 4
138 #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
139 || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
140 #define twl_has_pwrbutton() true
142 #define twl_has_pwrbutton() false
145 #define SUB_CHIP_ID0 0
146 #define SUB_CHIP_ID1 1
147 #define SUB_CHIP_ID2 2
148 #define SUB_CHIP_ID3 3
150 #define TWL_MODULE_LAST TWL4030_MODULE_LAST
152 #define TWL4030_NR_IRQS 8
153 #define TWL6030_NR_IRQS 20
155 /* Base Address defns for twl4030_map[] */
157 /* subchip/slave 0 - USB ID */
158 #define TWL4030_BASEADD_USB 0x0000
160 /* subchip/slave 1 - AUD ID */
161 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000
162 #define TWL4030_BASEADD_GPIO 0x0098
163 #define TWL4030_BASEADD_INTBR 0x0085
164 #define TWL4030_BASEADD_PIH 0x0080
165 #define TWL4030_BASEADD_TEST 0x004C
167 /* subchip/slave 2 - AUX ID */
168 #define TWL4030_BASEADD_INTERRUPTS 0x00B9
169 #define TWL4030_BASEADD_LED 0x00EE
170 #define TWL4030_BASEADD_MADC 0x0000
171 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074
172 #define TWL4030_BASEADD_PRECHARGE 0x00AA
173 #define TWL4030_BASEADD_PWM0 0x00F8
174 #define TWL4030_BASEADD_PWM1 0x00FB
175 #define TWL4030_BASEADD_PWMA 0x00EF
176 #define TWL4030_BASEADD_PWMB 0x00F1
177 #define TWL4030_BASEADD_KEYPAD 0x00D2
179 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
180 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
183 /* subchip/slave 3 - POWER ID */
184 #define TWL4030_BASEADD_BACKUP 0x0014
185 #define TWL4030_BASEADD_INT 0x002E
186 #define TWL4030_BASEADD_PM_MASTER 0x0036
187 #define TWL4030_BASEADD_PM_RECEIVER 0x005B
188 #define TWL4030_BASEADD_RTC 0x001C
189 #define TWL4030_BASEADD_SECURED_REG 0x0000
191 /* Triton Core internal information (END) */
194 /* subchip/slave 0 0x48 - POWER */
195 #define TWL6030_BASEADD_RTC 0x0000
196 #define TWL6030_BASEADD_MEM 0x0017
197 #define TWL6030_BASEADD_PM_MASTER 0x001F
198 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
199 #define TWL6030_BASEADD_PM_MISC 0x00E2
200 #define TWL6030_BASEADD_PM_PUPD 0x00F0
202 /* subchip/slave 1 0x49 - FEATURE */
203 #define TWL6030_BASEADD_USB 0x0000
204 #define TWL6030_BASEADD_GPADC_CTRL 0x002E
205 #define TWL6030_BASEADD_AUX 0x0090
206 #define TWL6030_BASEADD_PWM 0x00BA
207 #define TWL6030_BASEADD_GASGAUGE 0x00C0
208 #define TWL6030_BASEADD_PIH 0x00D0
209 #define TWL6030_BASEADD_CHARGER 0x00E0
210 #define TWL6025_BASEADD_CHARGER 0x00DA
212 /* subchip/slave 2 0x4A - DFT */
213 #define TWL6030_BASEADD_DIEID 0x00C0
215 /* subchip/slave 3 0x4B - AUDIO */
216 #define TWL6030_BASEADD_AUDIO 0x0000
217 #define TWL6030_BASEADD_RSV 0x0000
218 #define TWL6030_BASEADD_ZERO 0x0000
220 /* Few power values */
221 #define R_CFG_BOOT 0x05
223 /* some fields in R_CFG_BOOT */
224 #define HFCLK_FREQ_19p2_MHZ (1 << 0)
225 #define HFCLK_FREQ_26_MHZ (2 << 0)
226 #define HFCLK_FREQ_38p4_MHZ (3 << 0)
227 #define HIGH_PERF_SQ (1 << 3)
228 #define CK32K_LOWPWR_EN (1 << 7)
231 /* chip-specific feature flags, for i2c_device_id.driver_data */
232 #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
233 #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
234 #define TWL5031 BIT(2) /* twl5031 has different registers */
235 #define TWL6030_CLASS BIT(3) /* TWL6030 class */
237 /*----------------------------------------------------------------------*/
239 /* is driver active, bound to a chip? */
242 /* TWL IDCODE Register value */
243 static u32 twl_idcode
;
245 static unsigned int twl_id
;
246 unsigned int twl_rev(void)
250 EXPORT_SYMBOL(twl_rev
);
252 /* Structure for each TWL4030/TWL6030 Slave */
254 struct i2c_client
*client
;
257 /* max numb of i2c_msg required is for read =2 */
258 struct i2c_msg xfer_msg
[2];
260 /* To lock access to xfer_msg */
261 struct mutex xfer_lock
;
264 static struct twl_client twl_modules
[TWL_NUM_SLAVES
];
266 static struct irq_domain domain
;
268 /* mapping the module id to slave id and base address */
270 unsigned char sid
; /* Slave ID */
271 unsigned char base
; /* base address */
273 static struct twl_mapping
*twl_map
;
275 static struct twl_mapping twl4030_map
[TWL4030_MODULE_LAST
+ 1] = {
277 * NOTE: don't change this table without updating the
278 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
279 * so they continue to match the order in this table.
282 { 0, TWL4030_BASEADD_USB
},
284 { 1, TWL4030_BASEADD_AUDIO_VOICE
},
285 { 1, TWL4030_BASEADD_GPIO
},
286 { 1, TWL4030_BASEADD_INTBR
},
287 { 1, TWL4030_BASEADD_PIH
},
288 { 1, TWL4030_BASEADD_TEST
},
290 { 2, TWL4030_BASEADD_KEYPAD
},
291 { 2, TWL4030_BASEADD_MADC
},
292 { 2, TWL4030_BASEADD_INTERRUPTS
},
293 { 2, TWL4030_BASEADD_LED
},
294 { 2, TWL4030_BASEADD_MAIN_CHARGE
},
295 { 2, TWL4030_BASEADD_PRECHARGE
},
296 { 2, TWL4030_BASEADD_PWM0
},
297 { 2, TWL4030_BASEADD_PWM1
},
298 { 2, TWL4030_BASEADD_PWMA
},
299 { 2, TWL4030_BASEADD_PWMB
},
300 { 2, TWL5031_BASEADD_ACCESSORY
},
301 { 2, TWL5031_BASEADD_INTERRUPTS
},
303 { 3, TWL4030_BASEADD_BACKUP
},
304 { 3, TWL4030_BASEADD_INT
},
305 { 3, TWL4030_BASEADD_PM_MASTER
},
306 { 3, TWL4030_BASEADD_PM_RECEIVER
},
307 { 3, TWL4030_BASEADD_RTC
},
308 { 3, TWL4030_BASEADD_SECURED_REG
},
311 static struct twl_mapping twl6030_map
[] = {
313 * NOTE: don't change this table without updating the
314 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
315 * so they continue to match the order in this table.
317 { SUB_CHIP_ID1
, TWL6030_BASEADD_USB
},
318 { SUB_CHIP_ID3
, TWL6030_BASEADD_AUDIO
},
319 { SUB_CHIP_ID2
, TWL6030_BASEADD_DIEID
},
320 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
321 { SUB_CHIP_ID1
, TWL6030_BASEADD_PIH
},
323 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
324 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
325 { SUB_CHIP_ID1
, TWL6030_BASEADD_GPADC_CTRL
},
326 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
327 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
329 { SUB_CHIP_ID1
, TWL6030_BASEADD_CHARGER
},
330 { SUB_CHIP_ID1
, TWL6030_BASEADD_GASGAUGE
},
331 { SUB_CHIP_ID1
, TWL6030_BASEADD_PWM
},
332 { SUB_CHIP_ID0
, TWL6030_BASEADD_ZERO
},
333 { SUB_CHIP_ID1
, TWL6030_BASEADD_ZERO
},
335 { SUB_CHIP_ID2
, TWL6030_BASEADD_ZERO
},
336 { SUB_CHIP_ID2
, TWL6030_BASEADD_ZERO
},
337 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
338 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
339 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
340 { SUB_CHIP_ID0
, TWL6030_BASEADD_PM_MASTER
},
341 { SUB_CHIP_ID0
, TWL6030_BASEADD_PM_SLAVE_MISC
},
343 { SUB_CHIP_ID0
, TWL6030_BASEADD_RTC
},
344 { SUB_CHIP_ID0
, TWL6030_BASEADD_MEM
},
345 { SUB_CHIP_ID1
, TWL6025_BASEADD_CHARGER
},
348 /*----------------------------------------------------------------------*/
350 /* Exported Functions */
353 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
354 * @mod_no: module number
355 * @value: an array of num_bytes+1 containing data to write
356 * @reg: register address (just offset will do)
357 * @num_bytes: number of bytes to transfer
359 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
360 * valid data starts at Offset 1.
362 * Returns the result of operation - 0 is success
364 int twl_i2c_write(u8 mod_no
, u8
*value
, u8 reg
, unsigned num_bytes
)
368 struct twl_client
*twl
;
371 if (unlikely(mod_no
> TWL_MODULE_LAST
)) {
372 pr_err("%s: invalid module number %d\n", DRIVER_NAME
, mod_no
);
375 if (unlikely(!inuse
)) {
376 pr_err("%s: not initialized\n", DRIVER_NAME
);
379 sid
= twl_map
[mod_no
].sid
;
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 twl
= &twl_modules
[sid
];
439 mutex_lock(&twl
->xfer_lock
);
440 /* [MSG1] fill the register address data */
441 msg
= &twl
->xfer_msg
[0];
442 msg
->addr
= twl
->address
;
444 msg
->flags
= 0; /* Read the register value */
445 val
= twl_map
[mod_no
].base
+ reg
;
447 /* [MSG2] fill the data rx buffer */
448 msg
= &twl
->xfer_msg
[1];
449 msg
->addr
= twl
->address
;
450 msg
->flags
= I2C_M_RD
; /* Read the register value */
451 msg
->len
= num_bytes
; /* only n bytes */
453 ret
= i2c_transfer(twl
->client
->adapter
, twl
->xfer_msg
, 2);
454 mutex_unlock(&twl
->xfer_lock
);
456 /* i2c_transfer returns number of messages transferred */
458 pr_err("%s: i2c_read failed to transfer all messages\n",
468 EXPORT_SYMBOL(twl_i2c_read
);
471 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
472 * @mod_no: module number
473 * @value: the value to be written 8 bit
474 * @reg: register address (just offset will do)
476 * Returns result of operation - 0 is success
478 int twl_i2c_write_u8(u8 mod_no
, u8 value
, u8 reg
)
481 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
482 u8 temp_buffer
[2] = { 0 };
483 /* offset 1 contains the data */
484 temp_buffer
[1] = value
;
485 return twl_i2c_write(mod_no
, temp_buffer
, reg
, 1);
487 EXPORT_SYMBOL(twl_i2c_write_u8
);
490 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
491 * @mod_no: module number
492 * @value: the value read 8 bit
493 * @reg: register address (just offset will do)
495 * Returns result of operation - 0 is success
497 int twl_i2c_read_u8(u8 mod_no
, u8
*value
, u8 reg
)
499 return twl_i2c_read(mod_no
, value
, reg
, 1);
501 EXPORT_SYMBOL(twl_i2c_read_u8
);
503 /*----------------------------------------------------------------------*/
506 * twl_read_idcode_register - API to read the IDCODE register.
508 * Unlocks the IDCODE register and read the 32 bit value.
510 static int twl_read_idcode_register(void)
514 err
= twl_i2c_write_u8(TWL4030_MODULE_INTBR
, TWL_EEPROM_R_UNLOCK
,
515 REG_UNLOCK_TEST_REG
);
517 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err
);
521 err
= twl_i2c_read(TWL4030_MODULE_INTBR
, (u8
*)(&twl_idcode
),
524 pr_err("TWL4030: unable to read IDCODE -%d\n", err
);
528 err
= twl_i2c_write_u8(TWL4030_MODULE_INTBR
, 0x0, REG_UNLOCK_TEST_REG
);
530 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err
);
536 * twl_get_type - API to get TWL Si type.
538 * Api to get the TWL Si type from IDCODE value.
540 int twl_get_type(void)
542 return TWL_SIL_TYPE(twl_idcode
);
544 EXPORT_SYMBOL_GPL(twl_get_type
);
547 * twl_get_version - API to get TWL Si version.
549 * Api to get the TWL Si version from IDCODE value.
551 int twl_get_version(void)
553 return TWL_SIL_REV(twl_idcode
);
555 EXPORT_SYMBOL_GPL(twl_get_version
);
557 static struct device
*
558 add_numbered_child(unsigned chip
, const char *name
, int num
,
559 void *pdata
, unsigned pdata_len
,
560 bool can_wakeup
, int irq0
, int irq1
)
562 struct platform_device
*pdev
;
563 struct twl_client
*twl
= &twl_modules
[chip
];
566 pdev
= platform_device_alloc(name
, num
);
568 dev_dbg(&twl
->client
->dev
, "can't alloc dev\n");
573 device_init_wakeup(&pdev
->dev
, can_wakeup
);
574 pdev
->dev
.parent
= &twl
->client
->dev
;
577 status
= platform_device_add_data(pdev
, pdata
, pdata_len
);
579 dev_dbg(&pdev
->dev
, "can't add platform_data\n");
585 struct resource r
[2] = {
586 { .start
= irq0
, .flags
= IORESOURCE_IRQ
, },
587 { .start
= irq1
, .flags
= IORESOURCE_IRQ
, },
590 status
= platform_device_add_resources(pdev
, r
, irq1
? 2 : 1);
592 dev_dbg(&pdev
->dev
, "can't add irqs\n");
597 status
= platform_device_add(pdev
);
601 platform_device_put(pdev
);
602 dev_err(&twl
->client
->dev
, "can't add %s dev\n", name
);
603 return ERR_PTR(status
);
608 static inline struct device
*add_child(unsigned chip
, const char *name
,
609 void *pdata
, unsigned pdata_len
,
610 bool can_wakeup
, int irq0
, int irq1
)
612 return add_numbered_child(chip
, name
, -1, pdata
, pdata_len
,
613 can_wakeup
, irq0
, irq1
);
616 static struct device
*
617 add_regulator_linked(int num
, struct regulator_init_data
*pdata
,
618 struct regulator_consumer_supply
*consumers
,
619 unsigned num_consumers
, unsigned long features
)
621 unsigned sub_chip_id
;
622 struct twl_regulator_driver_data drv_data
;
624 /* regulator framework demands init_data ... */
629 pdata
->consumer_supplies
= consumers
;
630 pdata
->num_consumer_supplies
= num_consumers
;
633 if (pdata
->driver_data
) {
634 /* If we have existing drv_data, just add the flags */
635 struct twl_regulator_driver_data
*tmp
;
636 tmp
= pdata
->driver_data
;
637 tmp
->features
|= features
;
639 /* add new driver data struct, used only during init */
640 drv_data
.features
= features
;
641 drv_data
.set_voltage
= NULL
;
642 drv_data
.get_voltage
= NULL
;
643 drv_data
.data
= NULL
;
644 pdata
->driver_data
= &drv_data
;
647 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
648 sub_chip_id
= twl_map
[TWL_MODULE_PM_MASTER
].sid
;
649 return add_numbered_child(sub_chip_id
, "twl_reg", num
,
650 pdata
, sizeof(*pdata
), false, 0, 0);
653 static struct device
*
654 add_regulator(int num
, struct regulator_init_data
*pdata
,
655 unsigned long features
)
657 return add_regulator_linked(num
, pdata
, NULL
, 0, features
);
661 * NOTE: We know the first 8 IRQs after pdata->base_irq are
662 * for the PIH, and the next are for the PWR_INT SIH, since
663 * that's how twl_init_irq() sets things up.
667 add_children(struct twl4030_platform_data
*pdata
, unsigned long features
)
669 struct device
*child
;
670 unsigned sub_chip_id
;
672 if (twl_has_gpio() && pdata
->gpio
) {
673 child
= add_child(SUB_CHIP_ID1
, "twl4030_gpio",
674 pdata
->gpio
, sizeof(*pdata
->gpio
),
675 false, pdata
->irq_base
+ GPIO_INTR_OFFSET
, 0);
677 return PTR_ERR(child
);
680 if (twl_has_keypad() && pdata
->keypad
) {
681 child
= add_child(SUB_CHIP_ID2
, "twl4030_keypad",
682 pdata
->keypad
, sizeof(*pdata
->keypad
),
683 true, pdata
->irq_base
+ KEYPAD_INTR_OFFSET
, 0);
685 return PTR_ERR(child
);
688 if (twl_has_madc() && pdata
->madc
) {
689 child
= add_child(2, "twl4030_madc",
690 pdata
->madc
, sizeof(*pdata
->madc
),
691 true, pdata
->irq_base
+ MADC_INTR_OFFSET
, 0);
693 return PTR_ERR(child
);
698 * REVISIT platform_data here currently might expose the
699 * "msecure" line ... but for now we just expect board
700 * setup to tell the chip "it's always ok to SET_TIME".
701 * Eventually, Linux might become more aware of such
702 * HW security concerns, and "least privilege".
704 sub_chip_id
= twl_map
[TWL_MODULE_RTC
].sid
;
705 child
= add_child(sub_chip_id
, "twl_rtc",
707 true, pdata
->irq_base
+ RTC_INTR_OFFSET
, 0);
709 return PTR_ERR(child
);
712 if (twl_has_usb() && pdata
->usb
&& twl_class_is_4030()) {
714 static struct regulator_consumer_supply usb1v5
= {
717 static struct regulator_consumer_supply usb1v8
= {
720 static struct regulator_consumer_supply usb3v1
= {
724 /* First add the regulators so that they can be used by transceiver */
725 if (twl_has_regulator()) {
726 /* this is a template that gets copied */
727 struct regulator_init_data usb_fixed
= {
728 .constraints
.valid_modes_mask
=
729 REGULATOR_MODE_NORMAL
730 | REGULATOR_MODE_STANDBY
,
731 .constraints
.valid_ops_mask
=
732 REGULATOR_CHANGE_MODE
733 | REGULATOR_CHANGE_STATUS
,
736 child
= add_regulator_linked(TWL4030_REG_VUSB1V5
,
737 &usb_fixed
, &usb1v5
, 1,
740 return PTR_ERR(child
);
742 child
= add_regulator_linked(TWL4030_REG_VUSB1V8
,
743 &usb_fixed
, &usb1v8
, 1,
746 return PTR_ERR(child
);
748 child
= add_regulator_linked(TWL4030_REG_VUSB3V1
,
749 &usb_fixed
, &usb3v1
, 1,
752 return PTR_ERR(child
);
756 child
= add_child(0, "twl4030_usb",
757 pdata
->usb
, sizeof(*pdata
->usb
),
759 /* irq0 = USB_PRES, irq1 = USB */
760 pdata
->irq_base
+ USB_PRES_INTR_OFFSET
,
761 pdata
->irq_base
+ USB_INTR_OFFSET
);
764 return PTR_ERR(child
);
766 /* we need to connect regulators to this transceiver */
767 if (twl_has_regulator() && child
) {
773 if (twl_has_usb() && pdata
->usb
&& twl_class_is_6030()) {
775 static struct regulator_consumer_supply usb3v3
;
778 if (twl_has_regulator()) {
779 /* this is a template that gets copied */
780 struct regulator_init_data usb_fixed
= {
781 .constraints
.valid_modes_mask
=
782 REGULATOR_MODE_NORMAL
783 | REGULATOR_MODE_STANDBY
,
784 .constraints
.valid_ops_mask
=
785 REGULATOR_CHANGE_MODE
786 | REGULATOR_CHANGE_STATUS
,
789 if (features
& TWL6025_SUBCLASS
) {
790 usb3v3
.supply
= "ldousb";
791 regulator
= TWL6025_REG_LDOUSB
;
793 usb3v3
.supply
= "vusb";
794 regulator
= TWL6030_REG_VUSB
;
796 child
= add_regulator_linked(regulator
, &usb_fixed
,
800 return PTR_ERR(child
);
803 pdata
->usb
->features
= features
;
805 child
= add_child(0, "twl6030_usb",
806 pdata
->usb
, sizeof(*pdata
->usb
),
808 /* irq1 = VBUS_PRES, irq0 = USB ID */
809 pdata
->irq_base
+ USBOTG_INTR_OFFSET
,
810 pdata
->irq_base
+ USB_PRES_INTR_OFFSET
);
813 return PTR_ERR(child
);
814 /* we need to connect regulators to this transceiver */
815 if (twl_has_regulator() && child
)
817 } else if (twl_has_regulator() && twl_class_is_6030()) {
818 if (features
& TWL6025_SUBCLASS
)
819 child
= add_regulator(TWL6025_REG_LDOUSB
,
820 pdata
->ldousb
, features
);
822 child
= add_regulator(TWL6030_REG_VUSB
,
823 pdata
->vusb
, features
);
826 return PTR_ERR(child
);
829 if (twl_has_watchdog() && twl_class_is_4030()) {
830 child
= add_child(0, "twl4030_wdt", NULL
, 0, false, 0, 0);
832 return PTR_ERR(child
);
835 if (twl_has_pwrbutton() && twl_class_is_4030()) {
836 child
= add_child(1, "twl4030_pwrbutton",
837 NULL
, 0, true, pdata
->irq_base
+ 8 + 0, 0);
839 return PTR_ERR(child
);
842 if (twl_has_codec() && pdata
->audio
&& twl_class_is_4030()) {
843 sub_chip_id
= twl_map
[TWL_MODULE_AUDIO_VOICE
].sid
;
844 child
= add_child(sub_chip_id
, "twl4030-audio",
845 pdata
->audio
, sizeof(*pdata
->audio
),
848 return PTR_ERR(child
);
851 if (twl_has_codec() && pdata
->audio
&& twl_class_is_6030()) {
852 sub_chip_id
= twl_map
[TWL_MODULE_AUDIO_VOICE
].sid
;
853 child
= add_child(sub_chip_id
, "twl6040",
854 pdata
->audio
, sizeof(*pdata
->audio
),
857 return PTR_ERR(child
);
860 /* twl4030 regulators */
861 if (twl_has_regulator() && twl_class_is_4030()) {
862 child
= add_regulator(TWL4030_REG_VPLL1
, pdata
->vpll1
,
865 return PTR_ERR(child
);
867 child
= add_regulator(TWL4030_REG_VIO
, pdata
->vio
,
870 return PTR_ERR(child
);
872 child
= add_regulator(TWL4030_REG_VDD1
, pdata
->vdd1
,
875 return PTR_ERR(child
);
877 child
= add_regulator(TWL4030_REG_VDD2
, pdata
->vdd2
,
880 return PTR_ERR(child
);
882 child
= add_regulator(TWL4030_REG_VMMC1
, pdata
->vmmc1
,
885 return PTR_ERR(child
);
887 child
= add_regulator(TWL4030_REG_VDAC
, pdata
->vdac
,
890 return PTR_ERR(child
);
892 child
= add_regulator((features
& TWL4030_VAUX2
)
893 ? TWL4030_REG_VAUX2_4030
895 pdata
->vaux2
, features
);
897 return PTR_ERR(child
);
899 child
= add_regulator(TWL4030_REG_VINTANA1
, pdata
->vintana1
,
902 return PTR_ERR(child
);
904 child
= add_regulator(TWL4030_REG_VINTANA2
, pdata
->vintana2
,
907 return PTR_ERR(child
);
909 child
= add_regulator(TWL4030_REG_VINTDIG
, pdata
->vintdig
,
912 return PTR_ERR(child
);
915 /* maybe add LDOs that are omitted on cost-reduced parts */
916 if (twl_has_regulator() && !(features
& TPS_SUBSET
)
917 && twl_class_is_4030()) {
918 child
= add_regulator(TWL4030_REG_VPLL2
, pdata
->vpll2
,
921 return PTR_ERR(child
);
923 child
= add_regulator(TWL4030_REG_VMMC2
, pdata
->vmmc2
,
926 return PTR_ERR(child
);
928 child
= add_regulator(TWL4030_REG_VSIM
, pdata
->vsim
,
931 return PTR_ERR(child
);
933 child
= add_regulator(TWL4030_REG_VAUX1
, pdata
->vaux1
,
936 return PTR_ERR(child
);
938 child
= add_regulator(TWL4030_REG_VAUX3
, pdata
->vaux3
,
941 return PTR_ERR(child
);
943 child
= add_regulator(TWL4030_REG_VAUX4
, pdata
->vaux4
,
946 return PTR_ERR(child
);
949 /* twl6030 regulators */
950 if (twl_has_regulator() && twl_class_is_6030() &&
951 !(features
& TWL6025_SUBCLASS
)) {
952 child
= add_regulator(TWL6030_REG_VMMC
, pdata
->vmmc
,
955 return PTR_ERR(child
);
957 child
= add_regulator(TWL6030_REG_VPP
, pdata
->vpp
,
960 return PTR_ERR(child
);
962 child
= add_regulator(TWL6030_REG_VUSIM
, pdata
->vusim
,
965 return PTR_ERR(child
);
967 child
= add_regulator(TWL6030_REG_VCXIO
, pdata
->vcxio
,
970 return PTR_ERR(child
);
972 child
= add_regulator(TWL6030_REG_VDAC
, pdata
->vdac
,
975 return PTR_ERR(child
);
977 child
= add_regulator(TWL6030_REG_VAUX1_6030
, pdata
->vaux1
,
980 return PTR_ERR(child
);
982 child
= add_regulator(TWL6030_REG_VAUX2_6030
, pdata
->vaux2
,
985 return PTR_ERR(child
);
987 child
= add_regulator(TWL6030_REG_VAUX3_6030
, pdata
->vaux3
,
990 return PTR_ERR(child
);
992 child
= add_regulator(TWL6030_REG_CLK32KG
, pdata
->clk32kg
,
995 return PTR_ERR(child
);
998 /* 6030 and 6025 share this regulator */
999 if (twl_has_regulator() && twl_class_is_6030()) {
1000 child
= add_regulator(TWL6030_REG_VANA
, pdata
->vana
,
1003 return PTR_ERR(child
);
1006 /* twl6025 regulators */
1007 if (twl_has_regulator() && twl_class_is_6030() &&
1008 (features
& TWL6025_SUBCLASS
)) {
1009 child
= add_regulator(TWL6025_REG_LDO5
, pdata
->ldo5
,
1012 return PTR_ERR(child
);
1014 child
= add_regulator(TWL6025_REG_LDO1
, pdata
->ldo1
,
1017 return PTR_ERR(child
);
1019 child
= add_regulator(TWL6025_REG_LDO7
, pdata
->ldo7
,
1022 return PTR_ERR(child
);
1024 child
= add_regulator(TWL6025_REG_LDO6
, pdata
->ldo6
,
1027 return PTR_ERR(child
);
1029 child
= add_regulator(TWL6025_REG_LDOLN
, pdata
->ldoln
,
1032 return PTR_ERR(child
);
1034 child
= add_regulator(TWL6025_REG_LDO2
, pdata
->ldo2
,
1037 return PTR_ERR(child
);
1039 child
= add_regulator(TWL6025_REG_LDO4
, pdata
->ldo4
,
1042 return PTR_ERR(child
);
1044 child
= add_regulator(TWL6025_REG_LDO3
, pdata
->ldo3
,
1047 return PTR_ERR(child
);
1049 child
= add_regulator(TWL6025_REG_SMPS3
, pdata
->smps3
,
1052 return PTR_ERR(child
);
1054 child
= add_regulator(TWL6025_REG_SMPS4
, pdata
->smps4
,
1057 return PTR_ERR(child
);
1059 child
= add_regulator(TWL6025_REG_VIO
, pdata
->vio6025
,
1062 return PTR_ERR(child
);
1066 if (twl_has_bci() && pdata
->bci
&&
1067 !(features
& (TPS_SUBSET
| TWL5031
))) {
1068 child
= add_child(3, "twl4030_bci",
1069 pdata
->bci
, sizeof(*pdata
->bci
), false,
1070 /* irq0 = CHG_PRES, irq1 = BCI */
1071 pdata
->irq_base
+ BCI_PRES_INTR_OFFSET
,
1072 pdata
->irq_base
+ BCI_INTR_OFFSET
);
1074 return PTR_ERR(child
);
1080 /*----------------------------------------------------------------------*/
1083 * These three functions initialize the on-chip clock framework,
1084 * letting it generate the right frequencies for USB, MADC, and
1087 static inline int __init
protect_pm_master(void)
1091 e
= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
, 0,
1092 TWL4030_PM_MASTER_PROTECT_KEY
);
1096 static inline int __init
unprotect_pm_master(void)
1100 e
|= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
,
1101 TWL4030_PM_MASTER_KEY_CFG1
,
1102 TWL4030_PM_MASTER_PROTECT_KEY
);
1103 e
|= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
,
1104 TWL4030_PM_MASTER_KEY_CFG2
,
1105 TWL4030_PM_MASTER_PROTECT_KEY
);
1110 static void clocks_init(struct device
*dev
,
1111 struct twl4030_clock_init_data
*clock
)
1116 u8 ctrl
= HFCLK_FREQ_26_MHZ
;
1118 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
1119 if (cpu_is_omap2430())
1120 osc
= clk_get(dev
, "osc_ck");
1122 osc
= clk_get(dev
, "osc_sys_ck");
1125 printk(KERN_WARNING
"Skipping twl internal clock init and "
1126 "using bootloader value (unknown osc rate)\n");
1130 rate
= clk_get_rate(osc
);
1134 /* REVISIT for non-OMAP systems, pass the clock rate from
1135 * board init code, using platform_data.
1137 osc
= ERR_PTR(-EIO
);
1139 printk(KERN_WARNING
"Skipping twl internal clock init and "
1140 "using bootloader value (unknown osc rate)\n");
1147 ctrl
= HFCLK_FREQ_19p2_MHZ
;
1150 ctrl
= HFCLK_FREQ_26_MHZ
;
1153 ctrl
= HFCLK_FREQ_38p4_MHZ
;
1157 ctrl
|= HIGH_PERF_SQ
;
1158 if (clock
&& clock
->ck32k_lowpwr_enable
)
1159 ctrl
|= CK32K_LOWPWR_EN
;
1161 e
|= unprotect_pm_master();
1162 /* effect->MADC+USB ck en */
1163 e
|= twl_i2c_write_u8(TWL_MODULE_PM_MASTER
, ctrl
, R_CFG_BOOT
);
1164 e
|= protect_pm_master();
1167 pr_err("%s: clock init err [%d]\n", DRIVER_NAME
, e
);
1170 /*----------------------------------------------------------------------*/
1172 int twl4030_init_irq(int irq_num
, unsigned irq_base
, unsigned irq_end
);
1173 int twl4030_exit_irq(void);
1174 int twl4030_init_chip_irq(const char *chip
);
1175 int twl6030_init_irq(int irq_num
, unsigned irq_base
, unsigned irq_end
);
1176 int twl6030_exit_irq(void);
1178 static int twl_remove(struct i2c_client
*client
)
1183 if (twl_class_is_4030())
1184 status
= twl4030_exit_irq();
1186 status
= twl6030_exit_irq();
1191 for (i
= 0; i
< TWL_NUM_SLAVES
; i
++) {
1192 struct twl_client
*twl
= &twl_modules
[i
];
1194 if (twl
->client
&& twl
->client
!= client
)
1195 i2c_unregister_device(twl
->client
);
1196 twl_modules
[i
].client
= NULL
;
1202 /* NOTE: this driver only handles a single twl4030/tps659x0 chip */
1203 static int __devinit
1204 twl_probe(struct i2c_client
*client
, const struct i2c_device_id
*id
)
1208 struct twl4030_platform_data
*pdata
= client
->dev
.platform_data
;
1209 struct device_node
*node
= client
->dev
.of_node
;
1212 int nr_irqs
= TWL4030_NR_IRQS
;
1214 if ((id
->driver_data
) & TWL6030_CLASS
)
1215 nr_irqs
= TWL6030_NR_IRQS
;
1217 if (node
&& !pdata
) {
1219 * XXX: Temporary pdata until the information is correctly
1220 * retrieved by every TWL modules from DT.
1222 pdata
= devm_kzalloc(&client
->dev
,
1223 sizeof(struct twl4030_platform_data
),
1230 dev_dbg(&client
->dev
, "no platform data?\n");
1234 status
= irq_alloc_descs(-1, pdata
->irq_base
, nr_irqs
, 0);
1235 if (IS_ERR_VALUE(status
)) {
1236 dev_err(&client
->dev
, "Fail to allocate IRQ descs\n");
1240 pdata
->irq_base
= status
;
1241 pdata
->irq_end
= pdata
->irq_base
+ nr_irqs
;
1243 domain
.irq_base
= pdata
->irq_base
;
1244 domain
.nr_irq
= nr_irqs
;
1245 #ifdef CONFIG_OF_IRQ
1246 domain
.of_node
= of_node_get(node
);
1247 domain
.ops
= &irq_domain_simple_ops
;
1249 irq_domain_add(&domain
);
1251 if (i2c_check_functionality(client
->adapter
, I2C_FUNC_I2C
) == 0) {
1252 dev_dbg(&client
->dev
, "can't talk I2C?\n");
1257 dev_dbg(&client
->dev
, "driver is already in use\n");
1261 for (i
= 0; i
< TWL_NUM_SLAVES
; i
++) {
1262 struct twl_client
*twl
= &twl_modules
[i
];
1264 twl
->address
= client
->addr
+ i
;
1266 twl
->client
= client
;
1268 twl
->client
= i2c_new_dummy(client
->adapter
,
1271 dev_err(&client
->dev
,
1272 "can't attach client %d\n", i
);
1277 mutex_init(&twl
->xfer_lock
);
1280 if ((id
->driver_data
) & TWL6030_CLASS
) {
1281 twl_id
= TWL6030_CLASS_ID
;
1282 twl_map
= &twl6030_map
[0];
1284 twl_id
= TWL4030_CLASS_ID
;
1285 twl_map
= &twl4030_map
[0];
1288 /* setup clock framework */
1289 clocks_init(&client
->dev
, pdata
->clock
);
1291 /* read TWL IDCODE Register */
1292 if (twl_id
== TWL4030_CLASS_ID
) {
1293 ret
= twl_read_idcode_register();
1294 WARN(ret
< 0, "Error: reading twl_idcode register value\n");
1297 /* load power event scripts */
1298 if (twl_has_power() && pdata
->power
)
1299 twl4030_power_init(pdata
->power
);
1301 /* Maybe init the T2 Interrupt subsystem */
1304 && pdata
->irq_end
> pdata
->irq_base
) {
1305 if (twl_class_is_4030()) {
1306 twl4030_init_chip_irq(id
->name
);
1307 status
= twl4030_init_irq(client
->irq
, pdata
->irq_base
,
1310 status
= twl6030_init_irq(client
->irq
, pdata
->irq_base
,
1318 /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1319 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1320 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1323 if (twl_class_is_4030()) {
1324 twl_i2c_read_u8(TWL4030_MODULE_INTBR
, &temp
, REG_GPPUPDCTR1
);
1325 temp
&= ~(SR_I2C_SDA_CTRL_PU
| SR_I2C_SCL_CTRL_PU
| \
1326 I2C_SDA_CTRL_PU
| I2C_SCL_CTRL_PU
);
1327 twl_i2c_write_u8(TWL4030_MODULE_INTBR
, temp
, REG_GPPUPDCTR1
);
1330 #ifdef CONFIG_OF_DEVICE
1332 status
= of_platform_populate(node
, NULL
, NULL
, &client
->dev
);
1335 status
= add_children(pdata
, id
->driver_data
);
1343 static const struct i2c_device_id twl_ids
[] = {
1344 { "twl4030", TWL4030_VAUX2
}, /* "Triton 2" */
1345 { "twl5030", 0 }, /* T2 updated */
1346 { "twl5031", TWL5031
}, /* TWL5030 updated */
1347 { "tps65950", 0 }, /* catalog version of twl5030 */
1348 { "tps65930", TPS_SUBSET
}, /* fewer LDOs and DACs; no charger */
1349 { "tps65920", TPS_SUBSET
}, /* fewer LDOs; no codec or charger */
1350 { "tps65921", TPS_SUBSET
}, /* fewer LDOs; no codec, no LED
1351 and vibrator. Charger in USB module*/
1352 { "twl6030", TWL6030_CLASS
}, /* "Phoenix power chip" */
1353 { "twl6025", TWL6030_CLASS
| TWL6025_SUBCLASS
}, /* "Phoenix lite" */
1354 { /* end of list */ },
1356 MODULE_DEVICE_TABLE(i2c
, twl_ids
);
1358 /* One Client Driver , 4 Clients */
1359 static struct i2c_driver twl_driver
= {
1360 .driver
.name
= DRIVER_NAME
,
1361 .id_table
= twl_ids
,
1363 .remove
= twl_remove
,
1366 static int __init
twl_init(void)
1368 return i2c_add_driver(&twl_driver
);
1370 subsys_initcall(twl_init
);
1372 static void __exit
twl_exit(void)
1374 i2c_del_driver(&twl_driver
);
1376 module_exit(twl_exit
);
1378 MODULE_AUTHOR("Texas Instruments, Inc.");
1379 MODULE_DESCRIPTION("I2C Core interface for TWL");
1380 MODULE_LICENSE("GPL");