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/regmap.h>
36 #include <linux/clk.h>
37 #include <linux/err.h>
38 #include <linux/device.h>
40 #include <linux/of_irq.h>
41 #include <linux/of_platform.h>
42 #include <linux/irq.h>
43 #include <linux/irqdomain.h>
45 #include <linux/regulator/machine.h>
47 #include <linux/i2c.h>
48 #include <linux/i2c/twl.h>
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 /* Triton Core internal information (BEGIN) */
69 /* Last - for index max*/
70 #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
72 #define TWL_NUM_SLAVES 4
74 #define SUB_CHIP_ID0 0
75 #define SUB_CHIP_ID1 1
76 #define SUB_CHIP_ID2 2
77 #define SUB_CHIP_ID3 3
78 #define SUB_CHIP_ID_INVAL 0xff
80 #define TWL_MODULE_LAST TWL4030_MODULE_LAST
82 /* Base Address defns for twl4030_map[] */
84 /* subchip/slave 0 - USB ID */
85 #define TWL4030_BASEADD_USB 0x0000
87 /* subchip/slave 1 - AUD ID */
88 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000
89 #define TWL4030_BASEADD_GPIO 0x0098
90 #define TWL4030_BASEADD_INTBR 0x0085
91 #define TWL4030_BASEADD_PIH 0x0080
92 #define TWL4030_BASEADD_TEST 0x004C
94 /* subchip/slave 2 - AUX ID */
95 #define TWL4030_BASEADD_INTERRUPTS 0x00B9
96 #define TWL4030_BASEADD_LED 0x00EE
97 #define TWL4030_BASEADD_MADC 0x0000
98 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074
99 #define TWL4030_BASEADD_PRECHARGE 0x00AA
100 #define TWL4030_BASEADD_PWM0 0x00F8
101 #define TWL4030_BASEADD_PWM1 0x00FB
102 #define TWL4030_BASEADD_PWMA 0x00EF
103 #define TWL4030_BASEADD_PWMB 0x00F1
104 #define TWL4030_BASEADD_KEYPAD 0x00D2
106 #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
107 #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
110 /* subchip/slave 3 - POWER ID */
111 #define TWL4030_BASEADD_BACKUP 0x0014
112 #define TWL4030_BASEADD_INT 0x002E
113 #define TWL4030_BASEADD_PM_MASTER 0x0036
114 #define TWL4030_BASEADD_PM_RECEIVER 0x005B
115 #define TWL4030_BASEADD_RTC 0x001C
116 #define TWL4030_BASEADD_SECURED_REG 0x0000
118 /* Triton Core internal information (END) */
121 /* subchip/slave 0 0x48 - POWER */
122 #define TWL6030_BASEADD_RTC 0x0000
123 #define TWL6030_BASEADD_MEM 0x0017
124 #define TWL6030_BASEADD_PM_MASTER 0x001F
125 #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
126 #define TWL6030_BASEADD_PM_MISC 0x00E2
127 #define TWL6030_BASEADD_PM_PUPD 0x00F0
129 /* subchip/slave 1 0x49 - FEATURE */
130 #define TWL6030_BASEADD_USB 0x0000
131 #define TWL6030_BASEADD_GPADC_CTRL 0x002E
132 #define TWL6030_BASEADD_AUX 0x0090
133 #define TWL6030_BASEADD_PWM 0x00BA
134 #define TWL6030_BASEADD_GASGAUGE 0x00C0
135 #define TWL6030_BASEADD_PIH 0x00D0
136 #define TWL6030_BASEADD_CHARGER 0x00E0
137 #define TWL6025_BASEADD_CHARGER 0x00DA
139 /* subchip/slave 2 0x4A - DFT */
140 #define TWL6030_BASEADD_DIEID 0x00C0
142 /* subchip/slave 3 0x4B - AUDIO */
143 #define TWL6030_BASEADD_AUDIO 0x0000
144 #define TWL6030_BASEADD_RSV 0x0000
145 #define TWL6030_BASEADD_ZERO 0x0000
147 /* Few power values */
148 #define R_CFG_BOOT 0x05
150 /* some fields in R_CFG_BOOT */
151 #define HFCLK_FREQ_19p2_MHZ (1 << 0)
152 #define HFCLK_FREQ_26_MHZ (2 << 0)
153 #define HFCLK_FREQ_38p4_MHZ (3 << 0)
154 #define HIGH_PERF_SQ (1 << 3)
155 #define CK32K_LOWPWR_EN (1 << 7)
157 /*----------------------------------------------------------------------*/
159 /* is driver active, bound to a chip? */
162 /* TWL IDCODE Register value */
163 static u32 twl_idcode
;
165 static unsigned int twl_id
;
166 unsigned int twl_rev(void)
170 EXPORT_SYMBOL(twl_rev
);
172 /* Structure for each TWL4030/TWL6030 Slave */
174 struct i2c_client
*client
;
175 struct regmap
*regmap
;
178 static struct twl_client twl_modules
[TWL_NUM_SLAVES
];
180 /* mapping the module id to slave id and base address */
182 unsigned char sid
; /* Slave ID */
183 unsigned char base
; /* base address */
185 static struct twl_mapping
*twl_map
;
187 static struct twl_mapping twl4030_map
[TWL4030_MODULE_LAST
+ 1] = {
189 * NOTE: don't change this table without updating the
190 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
191 * so they continue to match the order in this table.
194 { 0, TWL4030_BASEADD_USB
},
196 { 1, TWL4030_BASEADD_AUDIO_VOICE
},
197 { 1, TWL4030_BASEADD_GPIO
},
198 { 1, TWL4030_BASEADD_INTBR
},
199 { 1, TWL4030_BASEADD_PIH
},
200 { 1, TWL4030_BASEADD_TEST
},
202 { 2, TWL4030_BASEADD_KEYPAD
},
203 { 2, TWL4030_BASEADD_MADC
},
204 { 2, TWL4030_BASEADD_INTERRUPTS
},
205 { 2, TWL4030_BASEADD_LED
},
206 { 2, TWL4030_BASEADD_MAIN_CHARGE
},
207 { 2, TWL4030_BASEADD_PRECHARGE
},
208 { 2, TWL4030_BASEADD_PWM0
},
209 { 2, TWL4030_BASEADD_PWM1
},
210 { 2, TWL4030_BASEADD_PWMA
},
211 { 2, TWL4030_BASEADD_PWMB
},
212 { 2, TWL5031_BASEADD_ACCESSORY
},
213 { 2, TWL5031_BASEADD_INTERRUPTS
},
215 { 3, TWL4030_BASEADD_BACKUP
},
216 { 3, TWL4030_BASEADD_INT
},
217 { 3, TWL4030_BASEADD_PM_MASTER
},
218 { 3, TWL4030_BASEADD_PM_RECEIVER
},
219 { 3, TWL4030_BASEADD_RTC
},
220 { 3, TWL4030_BASEADD_SECURED_REG
},
223 static struct regmap_config twl4030_regmap_config
[4] = {
228 .max_register
= 0xff,
234 .max_register
= 0xff,
240 .max_register
= 0xff,
246 .max_register
= 0xff,
250 static struct twl_mapping twl6030_map
[] = {
252 * NOTE: don't change this table without updating the
253 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
254 * so they continue to match the order in this table.
256 { SUB_CHIP_ID1
, TWL6030_BASEADD_USB
},
257 { SUB_CHIP_ID_INVAL
, TWL6030_BASEADD_AUDIO
},
258 { SUB_CHIP_ID2
, TWL6030_BASEADD_DIEID
},
259 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
260 { SUB_CHIP_ID1
, TWL6030_BASEADD_PIH
},
262 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
263 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
264 { SUB_CHIP_ID1
, TWL6030_BASEADD_GPADC_CTRL
},
265 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
266 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
268 { SUB_CHIP_ID1
, TWL6030_BASEADD_CHARGER
},
269 { SUB_CHIP_ID1
, TWL6030_BASEADD_GASGAUGE
},
270 { SUB_CHIP_ID1
, TWL6030_BASEADD_PWM
},
271 { SUB_CHIP_ID0
, TWL6030_BASEADD_ZERO
},
272 { SUB_CHIP_ID1
, TWL6030_BASEADD_ZERO
},
274 { SUB_CHIP_ID2
, TWL6030_BASEADD_ZERO
},
275 { SUB_CHIP_ID2
, TWL6030_BASEADD_ZERO
},
276 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
277 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
278 { SUB_CHIP_ID2
, TWL6030_BASEADD_RSV
},
279 { SUB_CHIP_ID0
, TWL6030_BASEADD_PM_MASTER
},
280 { SUB_CHIP_ID0
, TWL6030_BASEADD_PM_SLAVE_MISC
},
282 { SUB_CHIP_ID0
, TWL6030_BASEADD_RTC
},
283 { SUB_CHIP_ID0
, TWL6030_BASEADD_MEM
},
284 { SUB_CHIP_ID1
, TWL6025_BASEADD_CHARGER
},
287 static struct regmap_config twl6030_regmap_config
[3] = {
292 .max_register
= 0xff,
298 .max_register
= 0xff,
304 .max_register
= 0xff,
308 /*----------------------------------------------------------------------*/
310 /* Exported Functions */
313 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
314 * @mod_no: module number
315 * @value: an array of num_bytes+1 containing data to write
316 * @reg: register address (just offset will do)
317 * @num_bytes: number of bytes to transfer
319 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
320 * valid data starts at Offset 1.
322 * Returns the result of operation - 0 is success
324 int twl_i2c_write(u8 mod_no
, u8
*value
, u8 reg
, unsigned num_bytes
)
328 struct twl_client
*twl
;
330 if (unlikely(mod_no
> TWL_MODULE_LAST
)) {
331 pr_err("%s: invalid module number %d\n", DRIVER_NAME
, mod_no
);
334 if (unlikely(!inuse
)) {
335 pr_err("%s: not initialized\n", DRIVER_NAME
);
338 sid
= twl_map
[mod_no
].sid
;
339 if (unlikely(sid
== SUB_CHIP_ID_INVAL
)) {
340 pr_err("%s: module %d is not part of the pmic\n",
341 DRIVER_NAME
, mod_no
);
344 twl
= &twl_modules
[sid
];
346 ret
= regmap_bulk_write(twl
->regmap
, twl_map
[mod_no
].base
+ reg
,
347 &value
[1], num_bytes
);
350 pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n",
351 DRIVER_NAME
, mod_no
, reg
, num_bytes
);
355 EXPORT_SYMBOL(twl_i2c_write
);
358 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
359 * @mod_no: module number
360 * @value: an array of num_bytes containing data to be read
361 * @reg: register address (just offset will do)
362 * @num_bytes: number of bytes to transfer
364 * Returns result of operation - num_bytes is success else failure.
366 int twl_i2c_read(u8 mod_no
, u8
*value
, u8 reg
, unsigned num_bytes
)
370 struct twl_client
*twl
;
372 if (unlikely(mod_no
> TWL_MODULE_LAST
)) {
373 pr_err("%s: invalid module number %d\n", DRIVER_NAME
, mod_no
);
376 if (unlikely(!inuse
)) {
377 pr_err("%s: not initialized\n", DRIVER_NAME
);
380 sid
= twl_map
[mod_no
].sid
;
381 if (unlikely(sid
== SUB_CHIP_ID_INVAL
)) {
382 pr_err("%s: module %d is not part of the pmic\n",
383 DRIVER_NAME
, mod_no
);
386 twl
= &twl_modules
[sid
];
388 ret
= regmap_bulk_read(twl
->regmap
, twl_map
[mod_no
].base
+ reg
,
392 pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n",
393 DRIVER_NAME
, mod_no
, reg
, num_bytes
);
397 EXPORT_SYMBOL(twl_i2c_read
);
400 * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
401 * @mod_no: module number
402 * @value: the value to be written 8 bit
403 * @reg: register address (just offset will do)
405 * Returns result of operation - 0 is success
407 int twl_i2c_write_u8(u8 mod_no
, u8 value
, u8 reg
)
410 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
411 u8 temp_buffer
[2] = { 0 };
412 /* offset 1 contains the data */
413 temp_buffer
[1] = value
;
414 return twl_i2c_write(mod_no
, temp_buffer
, reg
, 1);
416 EXPORT_SYMBOL(twl_i2c_write_u8
);
419 * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
420 * @mod_no: module number
421 * @value: the value read 8 bit
422 * @reg: register address (just offset will do)
424 * Returns result of operation - 0 is success
426 int twl_i2c_read_u8(u8 mod_no
, u8
*value
, u8 reg
)
428 return twl_i2c_read(mod_no
, value
, reg
, 1);
430 EXPORT_SYMBOL(twl_i2c_read_u8
);
432 /*----------------------------------------------------------------------*/
435 * twl_read_idcode_register - API to read the IDCODE register.
437 * Unlocks the IDCODE register and read the 32 bit value.
439 static int twl_read_idcode_register(void)
443 err
= twl_i2c_write_u8(TWL4030_MODULE_INTBR
, TWL_EEPROM_R_UNLOCK
,
444 REG_UNLOCK_TEST_REG
);
446 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err
);
450 err
= twl_i2c_read(TWL4030_MODULE_INTBR
, (u8
*)(&twl_idcode
),
453 pr_err("TWL4030: unable to read IDCODE -%d\n", err
);
457 err
= twl_i2c_write_u8(TWL4030_MODULE_INTBR
, 0x0, REG_UNLOCK_TEST_REG
);
459 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err
);
465 * twl_get_type - API to get TWL Si type.
467 * Api to get the TWL Si type from IDCODE value.
469 int twl_get_type(void)
471 return TWL_SIL_TYPE(twl_idcode
);
473 EXPORT_SYMBOL_GPL(twl_get_type
);
476 * twl_get_version - API to get TWL Si version.
478 * Api to get the TWL Si version from IDCODE value.
480 int twl_get_version(void)
482 return TWL_SIL_REV(twl_idcode
);
484 EXPORT_SYMBOL_GPL(twl_get_version
);
487 * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate.
489 * Api to get the TWL HFCLK rate based on BOOT_CFG register.
491 int twl_get_hfclk_rate(void)
496 twl_i2c_read_u8(TWL_MODULE_PM_MASTER
, &ctrl
, R_CFG_BOOT
);
498 switch (ctrl
& 0x3) {
499 case HFCLK_FREQ_19p2_MHZ
:
502 case HFCLK_FREQ_26_MHZ
:
505 case HFCLK_FREQ_38p4_MHZ
:
509 pr_err("TWL4030: HFCLK is not configured\n");
516 EXPORT_SYMBOL_GPL(twl_get_hfclk_rate
);
518 static struct device
*
519 add_numbered_child(unsigned chip
, const char *name
, int num
,
520 void *pdata
, unsigned pdata_len
,
521 bool can_wakeup
, int irq0
, int irq1
)
523 struct platform_device
*pdev
;
524 struct twl_client
*twl
= &twl_modules
[chip
];
527 pdev
= platform_device_alloc(name
, num
);
529 dev_dbg(&twl
->client
->dev
, "can't alloc dev\n");
534 pdev
->dev
.parent
= &twl
->client
->dev
;
537 status
= platform_device_add_data(pdev
, pdata
, pdata_len
);
539 dev_dbg(&pdev
->dev
, "can't add platform_data\n");
545 struct resource r
[2] = {
546 { .start
= irq0
, .flags
= IORESOURCE_IRQ
, },
547 { .start
= irq1
, .flags
= IORESOURCE_IRQ
, },
550 status
= platform_device_add_resources(pdev
, r
, irq1
? 2 : 1);
552 dev_dbg(&pdev
->dev
, "can't add irqs\n");
557 status
= platform_device_add(pdev
);
559 device_init_wakeup(&pdev
->dev
, can_wakeup
);
563 platform_device_put(pdev
);
564 dev_err(&twl
->client
->dev
, "can't add %s dev\n", name
);
565 return ERR_PTR(status
);
570 static inline struct device
*add_child(unsigned chip
, const char *name
,
571 void *pdata
, unsigned pdata_len
,
572 bool can_wakeup
, int irq0
, int irq1
)
574 return add_numbered_child(chip
, name
, -1, pdata
, pdata_len
,
575 can_wakeup
, irq0
, irq1
);
578 static struct device
*
579 add_regulator_linked(int num
, struct regulator_init_data
*pdata
,
580 struct regulator_consumer_supply
*consumers
,
581 unsigned num_consumers
, unsigned long features
)
583 unsigned sub_chip_id
;
584 struct twl_regulator_driver_data drv_data
;
586 /* regulator framework demands init_data ... */
591 pdata
->consumer_supplies
= consumers
;
592 pdata
->num_consumer_supplies
= num_consumers
;
595 if (pdata
->driver_data
) {
596 /* If we have existing drv_data, just add the flags */
597 struct twl_regulator_driver_data
*tmp
;
598 tmp
= pdata
->driver_data
;
599 tmp
->features
|= features
;
601 /* add new driver data struct, used only during init */
602 drv_data
.features
= features
;
603 drv_data
.set_voltage
= NULL
;
604 drv_data
.get_voltage
= NULL
;
605 drv_data
.data
= NULL
;
606 pdata
->driver_data
= &drv_data
;
609 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
610 sub_chip_id
= twl_map
[TWL_MODULE_PM_MASTER
].sid
;
611 return add_numbered_child(sub_chip_id
, "twl_reg", num
,
612 pdata
, sizeof(*pdata
), false, 0, 0);
615 static struct device
*
616 add_regulator(int num
, struct regulator_init_data
*pdata
,
617 unsigned long features
)
619 return add_regulator_linked(num
, pdata
, NULL
, 0, features
);
623 * NOTE: We know the first 8 IRQs after pdata->base_irq are
624 * for the PIH, and the next are for the PWR_INT SIH, since
625 * that's how twl_init_irq() sets things up.
629 add_children(struct twl4030_platform_data
*pdata
, unsigned irq_base
,
630 unsigned long features
)
632 struct device
*child
;
633 unsigned sub_chip_id
;
635 if (IS_ENABLED(CONFIG_GPIO_TWL4030
) && pdata
->gpio
) {
636 child
= add_child(SUB_CHIP_ID1
, "twl4030_gpio",
637 pdata
->gpio
, sizeof(*pdata
->gpio
),
638 false, irq_base
+ GPIO_INTR_OFFSET
, 0);
640 return PTR_ERR(child
);
643 if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030
) && pdata
->keypad
) {
644 child
= add_child(SUB_CHIP_ID2
, "twl4030_keypad",
645 pdata
->keypad
, sizeof(*pdata
->keypad
),
646 true, irq_base
+ KEYPAD_INTR_OFFSET
, 0);
648 return PTR_ERR(child
);
651 if (IS_ENABLED(CONFIG_TWL4030_MADC
) && pdata
->madc
&&
652 twl_class_is_4030()) {
653 child
= add_child(2, "twl4030_madc",
654 pdata
->madc
, sizeof(*pdata
->madc
),
655 true, irq_base
+ MADC_INTR_OFFSET
, 0);
657 return PTR_ERR(child
);
660 if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030
)) {
662 * REVISIT platform_data here currently might expose the
663 * "msecure" line ... but for now we just expect board
664 * setup to tell the chip "it's always ok to SET_TIME".
665 * Eventually, Linux might become more aware of such
666 * HW security concerns, and "least privilege".
668 sub_chip_id
= twl_map
[TWL_MODULE_RTC
].sid
;
669 child
= add_child(sub_chip_id
, "twl_rtc",
671 true, irq_base
+ RTC_INTR_OFFSET
, 0);
673 return PTR_ERR(child
);
676 if (IS_ENABLED(CONFIG_PWM_TWL
)) {
677 child
= add_child(SUB_CHIP_ID1
, "twl-pwm", NULL
, 0,
680 return PTR_ERR(child
);
683 if (IS_ENABLED(CONFIG_PWM_TWL_LED
)) {
684 child
= add_child(SUB_CHIP_ID1
, "twl-pwmled", NULL
, 0,
687 return PTR_ERR(child
);
690 if (IS_ENABLED(CONFIG_TWL4030_USB
) && pdata
->usb
&&
691 twl_class_is_4030()) {
693 static struct regulator_consumer_supply usb1v5
= {
696 static struct regulator_consumer_supply usb1v8
= {
699 static struct regulator_consumer_supply usb3v1
[] = {
700 { .supply
= "usb3v1" },
701 { .supply
= "bci3v1" },
704 /* First add the regulators so that they can be used by transceiver */
705 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
)) {
706 /* this is a template that gets copied */
707 struct regulator_init_data usb_fixed
= {
708 .constraints
.valid_modes_mask
=
709 REGULATOR_MODE_NORMAL
710 | REGULATOR_MODE_STANDBY
,
711 .constraints
.valid_ops_mask
=
712 REGULATOR_CHANGE_MODE
713 | REGULATOR_CHANGE_STATUS
,
716 child
= add_regulator_linked(TWL4030_REG_VUSB1V5
,
717 &usb_fixed
, &usb1v5
, 1,
720 return PTR_ERR(child
);
722 child
= add_regulator_linked(TWL4030_REG_VUSB1V8
,
723 &usb_fixed
, &usb1v8
, 1,
726 return PTR_ERR(child
);
728 child
= add_regulator_linked(TWL4030_REG_VUSB3V1
,
729 &usb_fixed
, usb3v1
, 2,
732 return PTR_ERR(child
);
736 child
= add_child(0, "twl4030_usb",
737 pdata
->usb
, sizeof(*pdata
->usb
),
739 /* irq0 = USB_PRES, irq1 = USB */
740 irq_base
+ USB_PRES_INTR_OFFSET
,
741 irq_base
+ USB_INTR_OFFSET
);
744 return PTR_ERR(child
);
746 /* we need to connect regulators to this transceiver */
747 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && child
) {
748 usb1v5
.dev_name
= dev_name(child
);
749 usb1v8
.dev_name
= dev_name(child
);
750 usb3v1
[0].dev_name
= dev_name(child
);
753 if (IS_ENABLED(CONFIG_TWL6030_USB
) && pdata
->usb
&&
754 twl_class_is_6030()) {
756 static struct regulator_consumer_supply usb3v3
;
759 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
)) {
760 /* this is a template that gets copied */
761 struct regulator_init_data usb_fixed
= {
762 .constraints
.valid_modes_mask
=
763 REGULATOR_MODE_NORMAL
764 | REGULATOR_MODE_STANDBY
,
765 .constraints
.valid_ops_mask
=
766 REGULATOR_CHANGE_MODE
767 | REGULATOR_CHANGE_STATUS
,
770 if (features
& TWL6025_SUBCLASS
) {
771 usb3v3
.supply
= "ldousb";
772 regulator
= TWL6025_REG_LDOUSB
;
774 usb3v3
.supply
= "vusb";
775 regulator
= TWL6030_REG_VUSB
;
777 child
= add_regulator_linked(regulator
, &usb_fixed
,
781 return PTR_ERR(child
);
784 pdata
->usb
->features
= features
;
786 child
= add_child(0, "twl6030_usb",
787 pdata
->usb
, sizeof(*pdata
->usb
),
789 /* irq1 = VBUS_PRES, irq0 = USB ID */
790 irq_base
+ USBOTG_INTR_OFFSET
,
791 irq_base
+ USB_PRES_INTR_OFFSET
);
794 return PTR_ERR(child
);
795 /* we need to connect regulators to this transceiver */
796 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && child
)
797 usb3v3
.dev_name
= dev_name(child
);
798 } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) &&
799 twl_class_is_6030()) {
800 if (features
& TWL6025_SUBCLASS
)
801 child
= add_regulator(TWL6025_REG_LDOUSB
,
802 pdata
->ldousb
, features
);
804 child
= add_regulator(TWL6030_REG_VUSB
,
805 pdata
->vusb
, features
);
808 return PTR_ERR(child
);
811 if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG
) && twl_class_is_4030()) {
812 child
= add_child(0, "twl4030_wdt", NULL
, 0, false, 0, 0);
814 return PTR_ERR(child
);
817 if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON
) && twl_class_is_4030()) {
818 child
= add_child(1, "twl4030_pwrbutton",
819 NULL
, 0, true, irq_base
+ 8 + 0, 0);
821 return PTR_ERR(child
);
824 if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO
) && pdata
->audio
&&
825 twl_class_is_4030()) {
826 sub_chip_id
= twl_map
[TWL_MODULE_AUDIO_VOICE
].sid
;
827 child
= add_child(sub_chip_id
, "twl4030-audio",
828 pdata
->audio
, sizeof(*pdata
->audio
),
831 return PTR_ERR(child
);
834 /* twl4030 regulators */
835 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && twl_class_is_4030()) {
836 child
= add_regulator(TWL4030_REG_VPLL1
, pdata
->vpll1
,
839 return PTR_ERR(child
);
841 child
= add_regulator(TWL4030_REG_VIO
, pdata
->vio
,
844 return PTR_ERR(child
);
846 child
= add_regulator(TWL4030_REG_VDD1
, pdata
->vdd1
,
849 return PTR_ERR(child
);
851 child
= add_regulator(TWL4030_REG_VDD2
, pdata
->vdd2
,
854 return PTR_ERR(child
);
856 child
= add_regulator(TWL4030_REG_VMMC1
, pdata
->vmmc1
,
859 return PTR_ERR(child
);
861 child
= add_regulator(TWL4030_REG_VDAC
, pdata
->vdac
,
864 return PTR_ERR(child
);
866 child
= add_regulator((features
& TWL4030_VAUX2
)
867 ? TWL4030_REG_VAUX2_4030
869 pdata
->vaux2
, features
);
871 return PTR_ERR(child
);
873 child
= add_regulator(TWL4030_REG_VINTANA1
, pdata
->vintana1
,
876 return PTR_ERR(child
);
878 child
= add_regulator(TWL4030_REG_VINTANA2
, pdata
->vintana2
,
881 return PTR_ERR(child
);
883 child
= add_regulator(TWL4030_REG_VINTDIG
, pdata
->vintdig
,
886 return PTR_ERR(child
);
889 /* maybe add LDOs that are omitted on cost-reduced parts */
890 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && !(features
& TPS_SUBSET
)
891 && twl_class_is_4030()) {
892 child
= add_regulator(TWL4030_REG_VPLL2
, pdata
->vpll2
,
895 return PTR_ERR(child
);
897 child
= add_regulator(TWL4030_REG_VMMC2
, pdata
->vmmc2
,
900 return PTR_ERR(child
);
902 child
= add_regulator(TWL4030_REG_VSIM
, pdata
->vsim
,
905 return PTR_ERR(child
);
907 child
= add_regulator(TWL4030_REG_VAUX1
, pdata
->vaux1
,
910 return PTR_ERR(child
);
912 child
= add_regulator(TWL4030_REG_VAUX3
, pdata
->vaux3
,
915 return PTR_ERR(child
);
917 child
= add_regulator(TWL4030_REG_VAUX4
, pdata
->vaux4
,
920 return PTR_ERR(child
);
923 /* twl6030 regulators */
924 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && twl_class_is_6030() &&
925 !(features
& TWL6025_SUBCLASS
)) {
926 child
= add_regulator(TWL6030_REG_VDD1
, pdata
->vdd1
,
929 return PTR_ERR(child
);
931 child
= add_regulator(TWL6030_REG_VDD2
, pdata
->vdd2
,
934 return PTR_ERR(child
);
936 child
= add_regulator(TWL6030_REG_VDD3
, pdata
->vdd3
,
939 return PTR_ERR(child
);
941 child
= add_regulator(TWL6030_REG_V1V8
, pdata
->v1v8
,
944 return PTR_ERR(child
);
946 child
= add_regulator(TWL6030_REG_V2V1
, pdata
->v2v1
,
949 return PTR_ERR(child
);
951 child
= add_regulator(TWL6030_REG_VMMC
, pdata
->vmmc
,
954 return PTR_ERR(child
);
956 child
= add_regulator(TWL6030_REG_VPP
, pdata
->vpp
,
959 return PTR_ERR(child
);
961 child
= add_regulator(TWL6030_REG_VUSIM
, pdata
->vusim
,
964 return PTR_ERR(child
);
966 child
= add_regulator(TWL6030_REG_VCXIO
, pdata
->vcxio
,
969 return PTR_ERR(child
);
971 child
= add_regulator(TWL6030_REG_VDAC
, pdata
->vdac
,
974 return PTR_ERR(child
);
976 child
= add_regulator(TWL6030_REG_VAUX1_6030
, pdata
->vaux1
,
979 return PTR_ERR(child
);
981 child
= add_regulator(TWL6030_REG_VAUX2_6030
, pdata
->vaux2
,
984 return PTR_ERR(child
);
986 child
= add_regulator(TWL6030_REG_VAUX3_6030
, pdata
->vaux3
,
989 return PTR_ERR(child
);
991 child
= add_regulator(TWL6030_REG_CLK32KG
, pdata
->clk32kg
,
994 return PTR_ERR(child
);
997 /* 6030 and 6025 share this regulator */
998 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && twl_class_is_6030()) {
999 child
= add_regulator(TWL6030_REG_VANA
, pdata
->vana
,
1002 return PTR_ERR(child
);
1005 /* twl6025 regulators */
1006 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030
) && twl_class_is_6030() &&
1007 (features
& TWL6025_SUBCLASS
)) {
1008 child
= add_regulator(TWL6025_REG_LDO5
, pdata
->ldo5
,
1011 return PTR_ERR(child
);
1013 child
= add_regulator(TWL6025_REG_LDO1
, pdata
->ldo1
,
1016 return PTR_ERR(child
);
1018 child
= add_regulator(TWL6025_REG_LDO7
, pdata
->ldo7
,
1021 return PTR_ERR(child
);
1023 child
= add_regulator(TWL6025_REG_LDO6
, pdata
->ldo6
,
1026 return PTR_ERR(child
);
1028 child
= add_regulator(TWL6025_REG_LDOLN
, pdata
->ldoln
,
1031 return PTR_ERR(child
);
1033 child
= add_regulator(TWL6025_REG_LDO2
, pdata
->ldo2
,
1036 return PTR_ERR(child
);
1038 child
= add_regulator(TWL6025_REG_LDO4
, pdata
->ldo4
,
1041 return PTR_ERR(child
);
1043 child
= add_regulator(TWL6025_REG_LDO3
, pdata
->ldo3
,
1046 return PTR_ERR(child
);
1048 child
= add_regulator(TWL6025_REG_SMPS3
, pdata
->smps3
,
1051 return PTR_ERR(child
);
1053 child
= add_regulator(TWL6025_REG_SMPS4
, pdata
->smps4
,
1056 return PTR_ERR(child
);
1058 child
= add_regulator(TWL6025_REG_VIO
, pdata
->vio6025
,
1061 return PTR_ERR(child
);
1065 if (IS_ENABLED(CONFIG_CHARGER_TWL4030
) && pdata
->bci
&&
1066 !(features
& (TPS_SUBSET
| TWL5031
))) {
1067 child
= add_child(3, "twl4030_bci",
1068 pdata
->bci
, sizeof(*pdata
->bci
), false,
1069 /* irq0 = CHG_PRES, irq1 = BCI */
1070 irq_base
+ BCI_PRES_INTR_OFFSET
,
1071 irq_base
+ BCI_INTR_OFFSET
);
1073 return PTR_ERR(child
);
1079 /*----------------------------------------------------------------------*/
1082 * These three functions initialize the on-chip clock framework,
1083 * letting it generate the right frequencies for USB, MADC, and
1086 static inline int __init
protect_pm_master(void)
1090 e
= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
, 0,
1091 TWL4030_PM_MASTER_PROTECT_KEY
);
1095 static inline int __init
unprotect_pm_master(void)
1099 e
|= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
,
1100 TWL4030_PM_MASTER_KEY_CFG1
,
1101 TWL4030_PM_MASTER_PROTECT_KEY
);
1102 e
|= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER
,
1103 TWL4030_PM_MASTER_KEY_CFG2
,
1104 TWL4030_PM_MASTER_PROTECT_KEY
);
1109 static void clocks_init(struct device
*dev
,
1110 struct twl4030_clock_init_data
*clock
)
1115 u8 ctrl
= HFCLK_FREQ_26_MHZ
;
1117 osc
= clk_get(dev
, "fck");
1119 printk(KERN_WARNING
"Skipping twl internal clock init and "
1120 "using bootloader value (unknown osc rate)\n");
1124 rate
= clk_get_rate(osc
);
1129 ctrl
= HFCLK_FREQ_19p2_MHZ
;
1132 ctrl
= HFCLK_FREQ_26_MHZ
;
1135 ctrl
= HFCLK_FREQ_38p4_MHZ
;
1139 ctrl
|= HIGH_PERF_SQ
;
1140 if (clock
&& clock
->ck32k_lowpwr_enable
)
1141 ctrl
|= CK32K_LOWPWR_EN
;
1143 e
|= unprotect_pm_master();
1144 /* effect->MADC+USB ck en */
1145 e
|= twl_i2c_write_u8(TWL_MODULE_PM_MASTER
, ctrl
, R_CFG_BOOT
);
1146 e
|= protect_pm_master();
1149 pr_err("%s: clock init err [%d]\n", DRIVER_NAME
, e
);
1152 /*----------------------------------------------------------------------*/
1155 static int twl_remove(struct i2c_client
*client
)
1157 unsigned i
, num_slaves
;
1160 if (twl_class_is_4030()) {
1161 status
= twl4030_exit_irq();
1162 num_slaves
= TWL_NUM_SLAVES
;
1164 status
= twl6030_exit_irq();
1165 num_slaves
= TWL_NUM_SLAVES
- 1;
1171 for (i
= 0; i
< num_slaves
; i
++) {
1172 struct twl_client
*twl
= &twl_modules
[i
];
1174 if (twl
->client
&& twl
->client
!= client
)
1175 i2c_unregister_device(twl
->client
);
1176 twl_modules
[i
].client
= NULL
;
1182 /* NOTE: This driver only handles a single twl4030/tps659x0 chip */
1183 static int __devinit
1184 twl_probe(struct i2c_client
*client
, const struct i2c_device_id
*id
)
1186 struct twl4030_platform_data
*pdata
= client
->dev
.platform_data
;
1187 struct device_node
*node
= client
->dev
.of_node
;
1188 struct platform_device
*pdev
;
1189 struct regmap_config
*twl_regmap_config
;
1192 unsigned i
, num_slaves
;
1194 pdev
= platform_device_alloc(DRIVER_NAME
, -1);
1196 dev_err(&client
->dev
, "can't alloc pdev\n");
1200 status
= platform_device_add(pdev
);
1202 platform_device_put(pdev
);
1206 if (node
&& !pdata
) {
1208 * XXX: Temporary pdata until the information is correctly
1209 * retrieved by every TWL modules from DT.
1211 pdata
= devm_kzalloc(&client
->dev
,
1212 sizeof(struct twl4030_platform_data
),
1221 dev_dbg(&client
->dev
, "no platform data?\n");
1226 platform_set_drvdata(pdev
, pdata
);
1228 if (i2c_check_functionality(client
->adapter
, I2C_FUNC_I2C
) == 0) {
1229 dev_dbg(&client
->dev
, "can't talk I2C?\n");
1235 dev_dbg(&client
->dev
, "driver is already in use\n");
1240 if ((id
->driver_data
) & TWL6030_CLASS
) {
1241 twl_id
= TWL6030_CLASS_ID
;
1242 twl_map
= &twl6030_map
[0];
1243 twl_regmap_config
= twl6030_regmap_config
;
1244 num_slaves
= TWL_NUM_SLAVES
- 1;
1246 twl_id
= TWL4030_CLASS_ID
;
1247 twl_map
= &twl4030_map
[0];
1248 twl_regmap_config
= twl4030_regmap_config
;
1249 num_slaves
= TWL_NUM_SLAVES
;
1252 for (i
= 0; i
< num_slaves
; i
++) {
1253 struct twl_client
*twl
= &twl_modules
[i
];
1256 twl
->client
= client
;
1258 twl
->client
= i2c_new_dummy(client
->adapter
,
1261 dev_err(&client
->dev
,
1262 "can't attach client %d\n", i
);
1268 twl
->regmap
= devm_regmap_init_i2c(twl
->client
,
1269 &twl_regmap_config
[i
]);
1270 if (IS_ERR(twl
->regmap
)) {
1271 status
= PTR_ERR(twl
->regmap
);
1272 dev_err(&client
->dev
,
1273 "Failed to allocate regmap %d, err: %d\n", i
,
1281 /* setup clock framework */
1282 clocks_init(&pdev
->dev
, pdata
->clock
);
1284 /* read TWL IDCODE Register */
1285 if (twl_id
== TWL4030_CLASS_ID
) {
1286 status
= twl_read_idcode_register();
1287 WARN(status
< 0, "Error: reading twl_idcode register value\n");
1290 /* load power event scripts */
1291 if (IS_ENABLED(CONFIG_TWL4030_POWER
) && pdata
->power
)
1292 twl4030_power_init(pdata
->power
);
1294 /* Maybe init the T2 Interrupt subsystem */
1296 if (twl_class_is_4030()) {
1297 twl4030_init_chip_irq(id
->name
);
1298 irq_base
= twl4030_init_irq(&client
->dev
, client
->irq
);
1300 irq_base
= twl6030_init_irq(&client
->dev
, client
->irq
);
1310 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1311 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1312 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1314 if (twl_class_is_4030()) {
1317 twl_i2c_read_u8(TWL4030_MODULE_INTBR
, &temp
, REG_GPPUPDCTR1
);
1318 temp
&= ~(SR_I2C_SDA_CTRL_PU
| SR_I2C_SCL_CTRL_PU
| \
1319 I2C_SDA_CTRL_PU
| I2C_SCL_CTRL_PU
);
1320 twl_i2c_write_u8(TWL4030_MODULE_INTBR
, temp
, REG_GPPUPDCTR1
);
1325 status
= of_platform_populate(node
, NULL
, NULL
, &client
->dev
);
1327 status
= add_children(pdata
, irq_base
, id
->driver_data
);
1334 platform_device_unregister(pdev
);
1339 static const struct i2c_device_id twl_ids
[] = {
1340 { "twl4030", TWL4030_VAUX2
}, /* "Triton 2" */
1341 { "twl5030", 0 }, /* T2 updated */
1342 { "twl5031", TWL5031
}, /* TWL5030 updated */
1343 { "tps65950", 0 }, /* catalog version of twl5030 */
1344 { "tps65930", TPS_SUBSET
}, /* fewer LDOs and DACs; no charger */
1345 { "tps65920", TPS_SUBSET
}, /* fewer LDOs; no codec or charger */
1346 { "tps65921", TPS_SUBSET
}, /* fewer LDOs; no codec, no LED
1347 and vibrator. Charger in USB module*/
1348 { "twl6030", TWL6030_CLASS
}, /* "Phoenix power chip" */
1349 { "twl6025", TWL6030_CLASS
| TWL6025_SUBCLASS
}, /* "Phoenix lite" */
1350 { /* end of list */ },
1352 MODULE_DEVICE_TABLE(i2c
, twl_ids
);
1354 /* One Client Driver , 4 Clients */
1355 static struct i2c_driver twl_driver
= {
1356 .driver
.name
= DRIVER_NAME
,
1357 .id_table
= twl_ids
,
1359 .remove
= twl_remove
,
1362 static int __init
twl_init(void)
1364 return i2c_add_driver(&twl_driver
);
1366 subsys_initcall(twl_init
);
1368 static void __exit
twl_exit(void)
1370 i2c_del_driver(&twl_driver
);
1372 module_exit(twl_exit
);
1374 MODULE_AUTHOR("Texas Instruments, Inc.");
1375 MODULE_DESCRIPTION("I2C Core interface for TWL");
1376 MODULE_LICENSE("GPL");