2 * twl4030_core.c - driver for TWL4030/TPS659x0 PM and audio CODEC devices
4 * Copyright (C) 2005-2006 Texas Instruments, Inc.
6 * Modifications to defer interrupt handling to a kernel thread:
7 * Copyright (C) 2006 MontaVista Software, Inc.
9 * Based on tlv320aic23.c:
10 * Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
12 * Code cleanup and modifications to IRQ handler.
13 * by syed khasim <x0khasim@ti.com>
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include <linux/init.h>
31 #include <linux/mutex.h>
32 #include <linux/platform_device.h>
33 #include <linux/clk.h>
34 #include <linux/err.h>
36 #include <linux/regulator/machine.h>
38 #include <linux/i2c.h>
39 #include <linux/i2c/twl4030.h>
41 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
46 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
47 * Management and System Companion Device" chips originally designed for
48 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
49 * often at around 3 Mbit/sec, including for interrupt handling.
51 * This driver core provides genirq support for the interrupts emitted,
52 * by the various modules, and exports register access primitives.
54 * FIXME this driver currently requires use of the first interrupt line
55 * (and associated registers).
58 #define DRIVER_NAME "twl4030"
60 #if defined(CONFIG_TWL4030_BCI_BATTERY) || \
61 defined(CONFIG_TWL4030_BCI_BATTERY_MODULE)
62 #define twl_has_bci() true
64 #define twl_has_bci() false
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 #define twl_has_usb() true
107 #define twl_has_usb() false
110 #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
111 || defined(CONFIG_INPUT_TWL4030_PWBUTTON_MODULE)
112 #define twl_has_pwrbutton() true
114 #define twl_has_pwrbutton() false
117 /* Triton Core internal information (BEGIN) */
119 /* Last - for index max*/
120 #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
122 #define TWL4030_NUM_SLAVES 4
125 /* Base Address defns for twl4030_map[] */
127 /* subchip/slave 0 - USB ID */
128 #define TWL4030_BASEADD_USB 0x0000
130 /* subchip/slave 1 - AUD ID */
131 #define TWL4030_BASEADD_AUDIO_VOICE 0x0000
132 #define TWL4030_BASEADD_GPIO 0x0098
133 #define TWL4030_BASEADD_INTBR 0x0085
134 #define TWL4030_BASEADD_PIH 0x0080
135 #define TWL4030_BASEADD_TEST 0x004C
137 /* subchip/slave 2 - AUX ID */
138 #define TWL4030_BASEADD_INTERRUPTS 0x00B9
139 #define TWL4030_BASEADD_LED 0x00EE
140 #define TWL4030_BASEADD_MADC 0x0000
141 #define TWL4030_BASEADD_MAIN_CHARGE 0x0074
142 #define TWL4030_BASEADD_PRECHARGE 0x00AA
143 #define TWL4030_BASEADD_PWM0 0x00F8
144 #define TWL4030_BASEADD_PWM1 0x00FB
145 #define TWL4030_BASEADD_PWMA 0x00EF
146 #define TWL4030_BASEADD_PWMB 0x00F1
147 #define TWL4030_BASEADD_KEYPAD 0x00D2
149 /* subchip/slave 3 - POWER ID */
150 #define TWL4030_BASEADD_BACKUP 0x0014
151 #define TWL4030_BASEADD_INT 0x002E
152 #define TWL4030_BASEADD_PM_MASTER 0x0036
153 #define TWL4030_BASEADD_PM_RECEIVER 0x005B
154 #define TWL4030_BASEADD_RTC 0x001C
155 #define TWL4030_BASEADD_SECURED_REG 0x0000
157 /* Triton Core internal information (END) */
160 /* Few power values */
161 #define R_CFG_BOOT 0x05
162 #define R_PROTECT_KEY 0x0E
164 /* access control values for R_PROTECT_KEY */
165 #define KEY_UNLOCK1 0xce
166 #define KEY_UNLOCK2 0xec
167 #define KEY_LOCK 0x00
169 /* some fields in R_CFG_BOOT */
170 #define HFCLK_FREQ_19p2_MHZ (1 << 0)
171 #define HFCLK_FREQ_26_MHZ (2 << 0)
172 #define HFCLK_FREQ_38p4_MHZ (3 << 0)
173 #define HIGH_PERF_SQ (1 << 3)
176 /* chip-specific feature flags, for i2c_device_id.driver_data */
177 #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
178 #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
180 /*----------------------------------------------------------------------*/
182 /* is driver active, bound to a chip? */
185 /* Structure for each TWL4030 Slave */
186 struct twl4030_client {
187 struct i2c_client *client;
190 /* max numb of i2c_msg required is for read =2 */
191 struct i2c_msg xfer_msg[2];
193 /* To lock access to xfer_msg */
194 struct mutex xfer_lock;
197 static struct twl4030_client twl4030_modules[TWL4030_NUM_SLAVES];
200 /* mapping the module id to slave id and base address */
201 struct twl4030mapping {
202 unsigned char sid; /* Slave ID */
203 unsigned char base; /* base address */
206 static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
208 * NOTE: don't change this table without updating the
209 * <linux/i2c/twl4030.h> defines for TWL4030_MODULE_*
210 * so they continue to match the order in this table.
213 { 0, TWL4030_BASEADD_USB },
215 { 1, TWL4030_BASEADD_AUDIO_VOICE },
216 { 1, TWL4030_BASEADD_GPIO },
217 { 1, TWL4030_BASEADD_INTBR },
218 { 1, TWL4030_BASEADD_PIH },
219 { 1, TWL4030_BASEADD_TEST },
221 { 2, TWL4030_BASEADD_KEYPAD },
222 { 2, TWL4030_BASEADD_MADC },
223 { 2, TWL4030_BASEADD_INTERRUPTS },
224 { 2, TWL4030_BASEADD_LED },
225 { 2, TWL4030_BASEADD_MAIN_CHARGE },
226 { 2, TWL4030_BASEADD_PRECHARGE },
227 { 2, TWL4030_BASEADD_PWM0 },
228 { 2, TWL4030_BASEADD_PWM1 },
229 { 2, TWL4030_BASEADD_PWMA },
230 { 2, TWL4030_BASEADD_PWMB },
232 { 3, TWL4030_BASEADD_BACKUP },
233 { 3, TWL4030_BASEADD_INT },
234 { 3, TWL4030_BASEADD_PM_MASTER },
235 { 3, TWL4030_BASEADD_PM_RECEIVER },
236 { 3, TWL4030_BASEADD_RTC },
237 { 3, TWL4030_BASEADD_SECURED_REG },
240 extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts);
242 /*----------------------------------------------------------------------*/
244 /* Exported Functions */
247 * twl4030_i2c_write - Writes a n bit register in TWL4030
248 * @mod_no: module number
249 * @value: an array of num_bytes+1 containing data to write
250 * @reg: register address (just offset will do)
251 * @num_bytes: number of bytes to transfer
253 * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
254 * valid data starts at Offset 1.
256 * Returns the result of operation - 0 is success
258 int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
262 struct twl4030_client *twl;
265 if (unlikely(mod_no > TWL4030_MODULE_LAST)) {
266 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
269 sid = twl4030_map[mod_no].sid;
270 twl = &twl4030_modules[sid];
272 if (unlikely(!inuse)) {
273 pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
276 mutex_lock(&twl->xfer_lock);
278 * [MSG1]: fill the register address data
279 * fill the data Tx buffer
281 msg = &twl->xfer_msg[0];
282 msg->addr = twl->address;
283 msg->len = num_bytes + 1;
286 /* over write the first byte of buffer with the register address */
287 *value = twl4030_map[mod_no].base + reg;
288 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
289 mutex_unlock(&twl->xfer_lock);
291 /* i2cTransfer returns num messages.translate it pls.. */
296 EXPORT_SYMBOL(twl4030_i2c_write);
299 * twl4030_i2c_read - Reads a n bit register in TWL4030
300 * @mod_no: module number
301 * @value: an array of num_bytes containing data to be read
302 * @reg: register address (just offset will do)
303 * @num_bytes: number of bytes to transfer
305 * Returns result of operation - num_bytes is success else failure.
307 int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
312 struct twl4030_client *twl;
315 if (unlikely(mod_no > TWL4030_MODULE_LAST)) {
316 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
319 sid = twl4030_map[mod_no].sid;
320 twl = &twl4030_modules[sid];
322 if (unlikely(!inuse)) {
323 pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
326 mutex_lock(&twl->xfer_lock);
327 /* [MSG1] fill the register address data */
328 msg = &twl->xfer_msg[0];
329 msg->addr = twl->address;
331 msg->flags = 0; /* Read the register value */
332 val = twl4030_map[mod_no].base + reg;
334 /* [MSG2] fill the data rx buffer */
335 msg = &twl->xfer_msg[1];
336 msg->addr = twl->address;
337 msg->flags = I2C_M_RD; /* Read the register value */
338 msg->len = num_bytes; /* only n bytes */
340 ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2);
341 mutex_unlock(&twl->xfer_lock);
343 /* i2cTransfer returns num messages.translate it pls.. */
348 EXPORT_SYMBOL(twl4030_i2c_read);
351 * twl4030_i2c_write_u8 - Writes a 8 bit register in TWL4030
352 * @mod_no: module number
353 * @value: the value to be written 8 bit
354 * @reg: register address (just offset will do)
356 * Returns result of operation - 0 is success
358 int twl4030_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
361 /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
362 u8 temp_buffer[2] = { 0 };
363 /* offset 1 contains the data */
364 temp_buffer[1] = value;
365 return twl4030_i2c_write(mod_no, temp_buffer, reg, 1);
367 EXPORT_SYMBOL(twl4030_i2c_write_u8);
370 * twl4030_i2c_read_u8 - Reads a 8 bit register from TWL4030
371 * @mod_no: module number
372 * @value: the value read 8 bit
373 * @reg: register address (just offset will do)
375 * Returns result of operation - 0 is success
377 int twl4030_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
379 return twl4030_i2c_read(mod_no, value, reg, 1);
381 EXPORT_SYMBOL(twl4030_i2c_read_u8);
383 /*----------------------------------------------------------------------*/
385 static struct device *
386 add_numbered_child(unsigned chip, const char *name, int num,
387 void *pdata, unsigned pdata_len,
388 bool can_wakeup, int irq0, int irq1)
390 struct platform_device *pdev;
391 struct twl4030_client *twl = &twl4030_modules[chip];
394 pdev = platform_device_alloc(name, num);
396 dev_dbg(&twl->client->dev, "can't alloc dev\n");
401 device_init_wakeup(&pdev->dev, can_wakeup);
402 pdev->dev.parent = &twl->client->dev;
405 status = platform_device_add_data(pdev, pdata, pdata_len);
407 dev_dbg(&pdev->dev, "can't add platform_data\n");
413 struct resource r[2] = {
414 { .start = irq0, .flags = IORESOURCE_IRQ, },
415 { .start = irq1, .flags = IORESOURCE_IRQ, },
418 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
420 dev_dbg(&pdev->dev, "can't add irqs\n");
425 status = platform_device_add(pdev);
429 platform_device_put(pdev);
430 dev_err(&twl->client->dev, "can't add %s dev\n", name);
431 return ERR_PTR(status);
436 static inline struct device *add_child(unsigned chip, const char *name,
437 void *pdata, unsigned pdata_len,
438 bool can_wakeup, int irq0, int irq1)
440 return add_numbered_child(chip, name, -1, pdata, pdata_len,
441 can_wakeup, irq0, irq1);
444 static struct device *
445 add_regulator_linked(int num, struct regulator_init_data *pdata,
446 struct regulator_consumer_supply *consumers,
447 unsigned num_consumers)
449 /* regulator framework demands init_data ... */
454 pdata->consumer_supplies = consumers;
455 pdata->num_consumer_supplies = num_consumers;
458 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
459 return add_numbered_child(3, "twl4030_reg", num,
460 pdata, sizeof(*pdata), false, 0, 0);
463 static struct device *
464 add_regulator(int num, struct regulator_init_data *pdata)
466 return add_regulator_linked(num, pdata, NULL, 0);
470 * NOTE: We know the first 8 IRQs after pdata->base_irq are
471 * for the PIH, and the next are for the PWR_INT SIH, since
472 * that's how twl_init_irq() sets things up.
476 add_children(struct twl4030_platform_data *pdata, unsigned long features)
478 struct device *child;
479 struct device *usb_transceiver = NULL;
481 if (twl_has_bci() && pdata->bci && !(features & TPS_SUBSET)) {
482 child = add_child(3, "twl4030_bci",
483 pdata->bci, sizeof(*pdata->bci),
485 /* irq0 = CHG_PRES, irq1 = BCI */
486 pdata->irq_base + 8 + 1, pdata->irq_base + 2);
488 return PTR_ERR(child);
491 if (twl_has_gpio() && pdata->gpio) {
492 child = add_child(1, "twl4030_gpio",
493 pdata->gpio, sizeof(*pdata->gpio),
494 false, pdata->irq_base + 0, 0);
496 return PTR_ERR(child);
499 if (twl_has_keypad() && pdata->keypad) {
500 child = add_child(2, "twl4030_keypad",
501 pdata->keypad, sizeof(*pdata->keypad),
502 true, pdata->irq_base + 1, 0);
504 return PTR_ERR(child);
507 if (twl_has_madc() && pdata->madc) {
508 child = add_child(2, "twl4030_madc",
509 pdata->madc, sizeof(*pdata->madc),
510 true, pdata->irq_base + 3, 0);
512 return PTR_ERR(child);
517 * REVISIT platform_data here currently might expose the
518 * "msecure" line ... but for now we just expect board
519 * setup to tell the chip "it's always ok to SET_TIME".
520 * Eventually, Linux might become more aware of such
521 * HW security concerns, and "least privilege".
523 child = add_child(3, "twl4030_rtc",
525 true, pdata->irq_base + 8 + 3, 0);
527 return PTR_ERR(child);
530 if (twl_has_usb() && pdata->usb) {
531 child = add_child(0, "twl4030_usb",
532 pdata->usb, sizeof(*pdata->usb),
534 /* irq0 = USB_PRES, irq1 = USB */
535 pdata->irq_base + 8 + 2, pdata->irq_base + 4);
537 return PTR_ERR(child);
539 /* we need to connect regulators to this transceiver */
540 usb_transceiver = child;
543 if (twl_has_pwrbutton()) {
544 child = add_child(1, "twl4030_pwrbutton",
545 NULL, 0, true, pdata->irq_base + 8 + 0, 0);
547 return PTR_ERR(child);
550 if (twl_has_regulator()) {
552 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1);
554 return PTR_ERR(child);
557 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1);
559 return PTR_ERR(child);
561 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac);
563 return PTR_ERR(child);
565 child = add_regulator((features & TWL4030_VAUX2)
566 ? TWL4030_REG_VAUX2_4030
570 return PTR_ERR(child);
573 if (twl_has_regulator() && usb_transceiver) {
574 static struct regulator_consumer_supply usb1v5 = {
577 static struct regulator_consumer_supply usb1v8 = {
580 static struct regulator_consumer_supply usb3v1 = {
584 /* this is a template that gets copied */
585 struct regulator_init_data usb_fixed = {
586 .constraints.valid_modes_mask =
587 REGULATOR_MODE_NORMAL
588 | REGULATOR_MODE_STANDBY,
589 .constraints.valid_ops_mask =
590 REGULATOR_CHANGE_MODE
591 | REGULATOR_CHANGE_STATUS,
594 usb1v5.dev = usb_transceiver;
595 usb1v8.dev = usb_transceiver;
596 usb3v1.dev = usb_transceiver;
598 child = add_regulator_linked(TWL4030_REG_VUSB1V5, &usb_fixed,
601 return PTR_ERR(child);
603 child = add_regulator_linked(TWL4030_REG_VUSB1V8, &usb_fixed,
606 return PTR_ERR(child);
608 child = add_regulator_linked(TWL4030_REG_VUSB3V1, &usb_fixed,
611 return PTR_ERR(child);
614 /* maybe add LDOs that are omitted on cost-reduced parts */
615 if (twl_has_regulator() && !(features & TPS_SUBSET)) {
616 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2);
618 return PTR_ERR(child);
620 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2);
622 return PTR_ERR(child);
624 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim);
626 return PTR_ERR(child);
628 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1);
630 return PTR_ERR(child);
632 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3);
634 return PTR_ERR(child);
636 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4);
638 return PTR_ERR(child);
644 /*----------------------------------------------------------------------*/
647 * These three functions initialize the on-chip clock framework,
648 * letting it generate the right frequencies for USB, MADC, and
651 static inline int __init protect_pm_master(void)
655 e = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_LOCK,
660 static inline int __init unprotect_pm_master(void)
664 e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_UNLOCK1,
666 e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_UNLOCK2,
671 static void __init clocks_init(struct device *dev)
676 u8 ctrl = HFCLK_FREQ_26_MHZ;
678 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
679 if (cpu_is_omap2430())
680 osc = clk_get(dev, "osc_ck");
682 osc = clk_get(dev, "osc_sys_ck");
685 printk(KERN_WARNING "Skipping twl4030 internal clock init and "
686 "using bootloader value (unknown osc rate)\n");
690 rate = clk_get_rate(osc);
694 /* REVISIT for non-OMAP systems, pass the clock rate from
695 * board init code, using platform_data.
699 printk(KERN_WARNING "Skipping twl4030 internal clock init and "
700 "using bootloader value (unknown osc rate)\n");
707 ctrl = HFCLK_FREQ_19p2_MHZ;
710 ctrl = HFCLK_FREQ_26_MHZ;
713 ctrl = HFCLK_FREQ_38p4_MHZ;
717 ctrl |= HIGH_PERF_SQ;
718 e |= unprotect_pm_master();
719 /* effect->MADC+USB ck en */
720 e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
721 e |= protect_pm_master();
724 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
727 /*----------------------------------------------------------------------*/
729 int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
730 int twl_exit_irq(void);
732 static int twl4030_remove(struct i2c_client *client)
737 status = twl_exit_irq();
741 for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
742 struct twl4030_client *twl = &twl4030_modules[i];
744 if (twl->client && twl->client != client)
745 i2c_unregister_device(twl->client);
746 twl4030_modules[i].client = NULL;
752 /* NOTE: this driver only handles a single twl4030/tps659x0 chip */
754 twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id)
758 struct twl4030_platform_data *pdata = client->dev.platform_data;
761 dev_dbg(&client->dev, "no platform data?\n");
765 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
766 dev_dbg(&client->dev, "can't talk I2C?\n");
771 dev_dbg(&client->dev, "driver is already in use\n");
775 for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
776 struct twl4030_client *twl = &twl4030_modules[i];
778 twl->address = client->addr + i;
780 twl->client = client;
782 twl->client = i2c_new_dummy(client->adapter,
785 dev_err(&twl->client->dev,
786 "can't attach client %d\n", i);
790 strlcpy(twl->client->name, id->name,
791 sizeof(twl->client->name));
793 mutex_init(&twl->xfer_lock);
797 /* setup clock framework */
798 clocks_init(&client->dev);
800 /* load power event scripts */
801 if (twl_has_power() && pdata->power)
802 twl4030_power_init(pdata->power);
804 /* Maybe init the T2 Interrupt subsystem */
807 && pdata->irq_end > pdata->irq_base) {
808 status = twl_init_irq(client->irq, pdata->irq_base, pdata->irq_end);
813 status = add_children(pdata, id->driver_data);
816 twl4030_remove(client);
820 static const struct i2c_device_id twl4030_ids[] = {
821 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
822 { "twl5030", 0 }, /* T2 updated */
823 { "tps65950", 0 }, /* catalog version of twl5030 */
824 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
825 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
826 { /* end of list */ },
828 MODULE_DEVICE_TABLE(i2c, twl4030_ids);
830 /* One Client Driver , 4 Clients */
831 static struct i2c_driver twl4030_driver = {
832 .driver.name = DRIVER_NAME,
833 .id_table = twl4030_ids,
834 .probe = twl4030_probe,
835 .remove = twl4030_remove,
838 static int __init twl4030_init(void)
840 return i2c_add_driver(&twl4030_driver);
842 subsys_initcall(twl4030_init);
844 static void __exit twl4030_exit(void)
846 i2c_del_driver(&twl4030_driver);
848 module_exit(twl4030_exit);
850 MODULE_AUTHOR("Texas Instruments, Inc.");
851 MODULE_DESCRIPTION("I2C Core interface for TWL4030");
852 MODULE_LICENSE("GPL");