blob: db11b4f406116124ca86d82b1cec6d2e358c99c2 [file] [log] [blame]
David Brownella603a7f2008-10-15 12:15:39 +02001/*
Balaji T Kfc7b92f2009-12-13 21:23:33 +01002 * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM
3 * and audio CODEC devices
David Brownella603a7f2008-10-15 12:15:39 +02004 *
5 * Copyright (C) 2005-2006 Texas Instruments, Inc.
6 *
7 * Modifications to defer interrupt handling to a kernel thread:
8 * Copyright (C) 2006 MontaVista Software, Inc.
9 *
10 * Based on tlv320aic23.c:
11 * Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
12 *
13 * Code cleanup and modifications to IRQ handler.
14 * by syed khasim <x0khasim@ti.com>
15 *
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.
20 *
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.
25 *
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
29 */
30
David Brownella603a7f2008-10-15 12:15:39 +020031#include <linux/init.h>
32#include <linux/mutex.h>
Paul Gortmaker4e36dd32011-07-03 15:13:27 -040033#include <linux/module.h>
David Brownella603a7f2008-10-15 12:15:39 +020034#include <linux/platform_device.h>
Peter Ujfalusi2473d252012-11-13 09:28:44 +010035#include <linux/regmap.h>
David Brownella603a7f2008-10-15 12:15:39 +020036#include <linux/clk.h>
David Brownella30d46c2008-10-20 23:46:28 +020037#include <linux/err.h>
Benoit Coussonaeb50322011-08-29 16:20:23 +020038#include <linux/device.h>
39#include <linux/of.h>
40#include <linux/of_irq.h>
41#include <linux/of_platform.h>
Grant Likelye7cc3ac2012-03-02 21:05:31 -070042#include <linux/irq.h>
Benoit Coussonaeb50322011-08-29 16:20:23 +020043#include <linux/irqdomain.h>
David Brownella603a7f2008-10-15 12:15:39 +020044
David Brownelldad759f2008-12-01 00:43:58 +010045#include <linux/regulator/machine.h>
46
David Brownella603a7f2008-10-15 12:15:39 +020047#include <linux/i2c.h>
Santosh Shilimkarb07682b2009-12-13 20:05:51 +010048#include <linux/i2c/twl.h>
David Brownella603a7f2008-10-15 12:15:39 +020049
Peter Ujfalusi91460702014-01-03 15:27:48 +020050/* Register descriptions for audio */
51#include <linux/mfd/twl4030-audio.h>
52
Benoit Cousson1b8f3332012-02-29 19:28:14 +010053#include "twl-core.h"
David Brownella603a7f2008-10-15 12:15:39 +020054
55/*
56 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
57 * Management and System Companion Device" chips originally designed for
58 * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
59 * often at around 3 Mbit/sec, including for interrupt handling.
60 *
61 * This driver core provides genirq support for the interrupts emitted,
62 * by the various modules, and exports register access primitives.
63 *
64 * FIXME this driver currently requires use of the first interrupt line
65 * (and associated registers).
66 */
67
Balaji T Kfc7b92f2009-12-13 21:23:33 +010068#define DRIVER_NAME "twl"
David Brownella603a7f2008-10-15 12:15:39 +020069
David Brownella603a7f2008-10-15 12:15:39 +020070/* Triton Core internal information (BEGIN) */
71
David Brownella603a7f2008-10-15 12:15:39 +020072/* Base Address defns for twl4030_map[] */
73
74/* subchip/slave 0 - USB ID */
75#define TWL4030_BASEADD_USB 0x0000
76
77/* subchip/slave 1 - AUD ID */
78#define TWL4030_BASEADD_AUDIO_VOICE 0x0000
79#define TWL4030_BASEADD_GPIO 0x0098
80#define TWL4030_BASEADD_INTBR 0x0085
81#define TWL4030_BASEADD_PIH 0x0080
82#define TWL4030_BASEADD_TEST 0x004C
83
84/* subchip/slave 2 - AUX ID */
85#define TWL4030_BASEADD_INTERRUPTS 0x00B9
86#define TWL4030_BASEADD_LED 0x00EE
87#define TWL4030_BASEADD_MADC 0x0000
88#define TWL4030_BASEADD_MAIN_CHARGE 0x0074
89#define TWL4030_BASEADD_PRECHARGE 0x00AA
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +010090#define TWL4030_BASEADD_PWM 0x00F8
David Brownella603a7f2008-10-15 12:15:39 +020091#define TWL4030_BASEADD_KEYPAD 0x00D2
92
Ilkka Koskinen1920a612009-11-10 17:26:15 +020093#define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
94#define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
95 one */
96
David Brownella603a7f2008-10-15 12:15:39 +020097/* subchip/slave 3 - POWER ID */
98#define TWL4030_BASEADD_BACKUP 0x0014
99#define TWL4030_BASEADD_INT 0x002E
100#define TWL4030_BASEADD_PM_MASTER 0x0036
Tony Lindgrena613b732014-04-10 16:47:18 -0700101
David Brownella603a7f2008-10-15 12:15:39 +0200102#define TWL4030_BASEADD_PM_RECEIVER 0x005B
Tony Lindgrena613b732014-04-10 16:47:18 -0700103#define TWL4030_DCDC_GLOBAL_CFG 0x06
104#define SMARTREFLEX_ENABLE BIT(3)
105
David Brownella603a7f2008-10-15 12:15:39 +0200106#define TWL4030_BASEADD_RTC 0x001C
107#define TWL4030_BASEADD_SECURED_REG 0x0000
108
109/* Triton Core internal information (END) */
110
111
Balaji T Ke8deb282009-12-14 00:25:31 +0100112/* subchip/slave 0 0x48 - POWER */
113#define TWL6030_BASEADD_RTC 0x0000
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100114#define TWL6030_BASEADD_SECURED_REG 0x0017
Balaji T Ke8deb282009-12-14 00:25:31 +0100115#define TWL6030_BASEADD_PM_MASTER 0x001F
116#define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
117#define TWL6030_BASEADD_PM_MISC 0x00E2
118#define TWL6030_BASEADD_PM_PUPD 0x00F0
119
120/* subchip/slave 1 0x49 - FEATURE */
121#define TWL6030_BASEADD_USB 0x0000
122#define TWL6030_BASEADD_GPADC_CTRL 0x002E
123#define TWL6030_BASEADD_AUX 0x0090
124#define TWL6030_BASEADD_PWM 0x00BA
125#define TWL6030_BASEADD_GASGAUGE 0x00C0
126#define TWL6030_BASEADD_PIH 0x00D0
127#define TWL6030_BASEADD_CHARGER 0x00E0
Graeme Gregory89ce43f2013-06-19 15:24:02 +0300128#define TWL6032_BASEADD_CHARGER 0x00DA
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100129#define TWL6030_BASEADD_LED 0x00F4
Balaji T Ke8deb282009-12-14 00:25:31 +0100130
131/* subchip/slave 2 0x4A - DFT */
132#define TWL6030_BASEADD_DIEID 0x00C0
133
134/* subchip/slave 3 0x4B - AUDIO */
135#define TWL6030_BASEADD_AUDIO 0x0000
136#define TWL6030_BASEADD_RSV 0x0000
Balaji T Kfa0d9762010-02-19 12:39:38 +0100137#define TWL6030_BASEADD_ZERO 0x0000
Balaji T Ke8deb282009-12-14 00:25:31 +0100138
David Brownella603a7f2008-10-15 12:15:39 +0200139/* Few power values */
140#define R_CFG_BOOT 0x05
David Brownella603a7f2008-10-15 12:15:39 +0200141
142/* some fields in R_CFG_BOOT */
143#define HFCLK_FREQ_19p2_MHZ (1 << 0)
144#define HFCLK_FREQ_26_MHZ (2 << 0)
145#define HFCLK_FREQ_38p4_MHZ (3 << 0)
146#define HIGH_PERF_SQ (1 << 3)
Ilkka Koskinen38a68492009-10-22 14:14:09 +0300147#define CK32K_LOWPWR_EN (1 << 7)
David Brownella603a7f2008-10-15 12:15:39 +0200148
David Brownella603a7f2008-10-15 12:15:39 +0200149/*----------------------------------------------------------------------*/
150
Balaji T Ke8deb282009-12-14 00:25:31 +0100151/* Structure for each TWL4030/TWL6030 Slave */
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100152struct twl_client {
David Brownella603a7f2008-10-15 12:15:39 +0200153 struct i2c_client *client;
Peter Ujfalusi2473d252012-11-13 09:28:44 +0100154 struct regmap *regmap;
David Brownella603a7f2008-10-15 12:15:39 +0200155};
156
David Brownella603a7f2008-10-15 12:15:39 +0200157/* mapping the module id to slave id and base address */
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100158struct twl_mapping {
David Brownella603a7f2008-10-15 12:15:39 +0200159 unsigned char sid; /* Slave ID */
160 unsigned char base; /* base address */
161};
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +0100162
163struct twl_private {
164 bool ready; /* The core driver is ready to be used */
165 u32 twl_idcode; /* TWL IDCODE Register value */
166 unsigned int twl_id;
167
168 struct twl_mapping *twl_map;
169 struct twl_client *twl_modules;
170};
171
172static struct twl_private *twl_priv;
David Brownella603a7f2008-10-15 12:15:39 +0200173
Peter Ujfalusida059ec2012-11-13 09:28:48 +0100174static struct twl_mapping twl4030_map[] = {
David Brownella603a7f2008-10-15 12:15:39 +0200175 /*
176 * NOTE: don't change this table without updating the
Balaji T Ke8deb282009-12-14 00:25:31 +0100177 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
David Brownella603a7f2008-10-15 12:15:39 +0200178 * so they continue to match the order in this table.
179 */
180
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100181 /* Common IPs */
David Brownella603a7f2008-10-15 12:15:39 +0200182 { 0, TWL4030_BASEADD_USB },
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100183 { 1, TWL4030_BASEADD_PIH },
184 { 2, TWL4030_BASEADD_MAIN_CHARGE },
185 { 3, TWL4030_BASEADD_PM_MASTER },
186 { 3, TWL4030_BASEADD_PM_RECEIVER },
187
188 { 3, TWL4030_BASEADD_RTC },
189 { 2, TWL4030_BASEADD_PWM },
190 { 2, TWL4030_BASEADD_LED },
191 { 3, TWL4030_BASEADD_SECURED_REG },
192
193 /* TWL4030 specific IPs */
David Brownella603a7f2008-10-15 12:15:39 +0200194 { 1, TWL4030_BASEADD_AUDIO_VOICE },
195 { 1, TWL4030_BASEADD_GPIO },
196 { 1, TWL4030_BASEADD_INTBR },
Peter Ujfalusi6691ccd2012-11-13 09:28:50 +0100197 { 1, TWL4030_BASEADD_TEST },
David Brownella603a7f2008-10-15 12:15:39 +0200198 { 2, TWL4030_BASEADD_KEYPAD },
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100199
David Brownella603a7f2008-10-15 12:15:39 +0200200 { 2, TWL4030_BASEADD_MADC },
201 { 2, TWL4030_BASEADD_INTERRUPTS },
David Brownella603a7f2008-10-15 12:15:39 +0200202 { 2, TWL4030_BASEADD_PRECHARGE },
David Brownella603a7f2008-10-15 12:15:39 +0200203 { 3, TWL4030_BASEADD_BACKUP },
204 { 3, TWL4030_BASEADD_INT },
Peter Ujfalusi6691ccd2012-11-13 09:28:50 +0100205
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100206 { 2, TWL5031_BASEADD_ACCESSORY },
207 { 2, TWL5031_BASEADD_INTERRUPTS },
David Brownella603a7f2008-10-15 12:15:39 +0200208};
209
Peter Ujfalusi91460702014-01-03 15:27:48 +0200210static struct reg_default twl4030_49_defaults[] = {
211 /* Audio Registers */
212 { 0x01, 0x00}, /* CODEC_MODE */
213 { 0x02, 0x00}, /* OPTION */
214 /* 0x03 Unused */
215 { 0x04, 0x00}, /* MICBIAS_CTL */
216 { 0x05, 0x00}, /* ANAMICL */
217 { 0x06, 0x00}, /* ANAMICR */
218 { 0x07, 0x00}, /* AVADC_CTL */
219 { 0x08, 0x00}, /* ADCMICSEL */
220 { 0x09, 0x00}, /* DIGMIXING */
221 { 0x0a, 0x0f}, /* ATXL1PGA */
222 { 0x0b, 0x0f}, /* ATXR1PGA */
223 { 0x0c, 0x0f}, /* AVTXL2PGA */
224 { 0x0d, 0x0f}, /* AVTXR2PGA */
225 { 0x0e, 0x00}, /* AUDIO_IF */
226 { 0x0f, 0x00}, /* VOICE_IF */
227 { 0x10, 0x3f}, /* ARXR1PGA */
228 { 0x11, 0x3f}, /* ARXL1PGA */
229 { 0x12, 0x3f}, /* ARXR2PGA */
230 { 0x13, 0x3f}, /* ARXL2PGA */
231 { 0x14, 0x25}, /* VRXPGA */
232 { 0x15, 0x00}, /* VSTPGA */
233 { 0x16, 0x00}, /* VRX2ARXPGA */
234 { 0x17, 0x00}, /* AVDAC_CTL */
235 { 0x18, 0x00}, /* ARX2VTXPGA */
236 { 0x19, 0x32}, /* ARXL1_APGA_CTL*/
237 { 0x1a, 0x32}, /* ARXR1_APGA_CTL*/
238 { 0x1b, 0x32}, /* ARXL2_APGA_CTL*/
239 { 0x1c, 0x32}, /* ARXR2_APGA_CTL*/
240 { 0x1d, 0x00}, /* ATX2ARXPGA */
241 { 0x1e, 0x00}, /* BT_IF */
242 { 0x1f, 0x55}, /* BTPGA */
243 { 0x20, 0x00}, /* BTSTPGA */
244 { 0x21, 0x00}, /* EAR_CTL */
245 { 0x22, 0x00}, /* HS_SEL */
246 { 0x23, 0x00}, /* HS_GAIN_SET */
247 { 0x24, 0x00}, /* HS_POPN_SET */
248 { 0x25, 0x00}, /* PREDL_CTL */
249 { 0x26, 0x00}, /* PREDR_CTL */
250 { 0x27, 0x00}, /* PRECKL_CTL */
251 { 0x28, 0x00}, /* PRECKR_CTL */
252 { 0x29, 0x00}, /* HFL_CTL */
253 { 0x2a, 0x00}, /* HFR_CTL */
254 { 0x2b, 0x05}, /* ALC_CTL */
255 { 0x2c, 0x00}, /* ALC_SET1 */
256 { 0x2d, 0x00}, /* ALC_SET2 */
257 { 0x2e, 0x00}, /* BOOST_CTL */
258 { 0x2f, 0x00}, /* SOFTVOL_CTL */
259 { 0x30, 0x13}, /* DTMF_FREQSEL */
260 { 0x31, 0x00}, /* DTMF_TONEXT1H */
261 { 0x32, 0x00}, /* DTMF_TONEXT1L */
262 { 0x33, 0x00}, /* DTMF_TONEXT2H */
263 { 0x34, 0x00}, /* DTMF_TONEXT2L */
264 { 0x35, 0x79}, /* DTMF_TONOFF */
265 { 0x36, 0x11}, /* DTMF_WANONOFF */
266 { 0x37, 0x00}, /* I2S_RX_SCRAMBLE_H */
267 { 0x38, 0x00}, /* I2S_RX_SCRAMBLE_M */
268 { 0x39, 0x00}, /* I2S_RX_SCRAMBLE_L */
269 { 0x3a, 0x06}, /* APLL_CTL */
270 { 0x3b, 0x00}, /* DTMF_CTL */
271 { 0x3c, 0x44}, /* DTMF_PGA_CTL2 (0x3C) */
272 { 0x3d, 0x69}, /* DTMF_PGA_CTL1 (0x3D) */
273 { 0x3e, 0x00}, /* MISC_SET_1 */
274 { 0x3f, 0x00}, /* PCMBTMUX */
275 /* 0x40 - 0x42 Unused */
276 { 0x43, 0x00}, /* RX_PATH_SEL */
277 { 0x44, 0x32}, /* VDL_APGA_CTL */
278 { 0x45, 0x00}, /* VIBRA_CTL */
279 { 0x46, 0x00}, /* VIBRA_SET */
280 { 0x47, 0x00}, /* VIBRA_PWM_SET */
281 { 0x48, 0x00}, /* ANAMIC_GAIN */
282 { 0x49, 0x00}, /* MISC_SET_2 */
283 /* End of Audio Registers */
284};
285
286static bool twl4030_49_nop_reg(struct device *dev, unsigned int reg)
287{
288 switch (reg) {
Tomas Novotny56816b72014-03-10 19:12:50 +0100289 case 0x00:
290 case 0x03:
291 case 0x40:
292 case 0x41:
293 case 0x42:
Peter Ujfalusi91460702014-01-03 15:27:48 +0200294 return false;
295 default:
296 return true;
297 }
298}
299
300static const struct regmap_range twl4030_49_volatile_ranges[] = {
301 regmap_reg_range(TWL4030_BASEADD_TEST, 0xff),
302};
303
304static const struct regmap_access_table twl4030_49_volatile_table = {
305 .yes_ranges = twl4030_49_volatile_ranges,
306 .n_yes_ranges = ARRAY_SIZE(twl4030_49_volatile_ranges),
307};
308
Peter Ujfalusi2473d252012-11-13 09:28:44 +0100309static struct regmap_config twl4030_regmap_config[4] = {
310 {
311 /* Address 0x48 */
312 .reg_bits = 8,
313 .val_bits = 8,
314 .max_register = 0xff,
315 },
316 {
317 /* Address 0x49 */
318 .reg_bits = 8,
319 .val_bits = 8,
320 .max_register = 0xff,
Peter Ujfalusi91460702014-01-03 15:27:48 +0200321
322 .readable_reg = twl4030_49_nop_reg,
323 .writeable_reg = twl4030_49_nop_reg,
324
325 .volatile_table = &twl4030_49_volatile_table,
326
327 .reg_defaults = twl4030_49_defaults,
328 .num_reg_defaults = ARRAY_SIZE(twl4030_49_defaults),
329 .cache_type = REGCACHE_RBTREE,
Peter Ujfalusi2473d252012-11-13 09:28:44 +0100330 },
331 {
332 /* Address 0x4a */
333 .reg_bits = 8,
334 .val_bits = 8,
335 .max_register = 0xff,
336 },
337 {
338 /* Address 0x4b */
339 .reg_bits = 8,
340 .val_bits = 8,
341 .max_register = 0xff,
342 },
343};
344
Balaji T Ke8deb282009-12-14 00:25:31 +0100345static struct twl_mapping twl6030_map[] = {
346 /*
347 * NOTE: don't change this table without updating the
348 * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
349 * so they continue to match the order in this table.
350 */
Balaji T Ke8deb282009-12-14 00:25:31 +0100351
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100352 /* Common IPs */
353 { 1, TWL6030_BASEADD_USB },
354 { 1, TWL6030_BASEADD_PIH },
355 { 1, TWL6030_BASEADD_CHARGER },
356 { 0, TWL6030_BASEADD_PM_MASTER },
357 { 0, TWL6030_BASEADD_PM_SLAVE_MISC },
Balaji T Ke8deb282009-12-14 00:25:31 +0100358
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100359 { 0, TWL6030_BASEADD_RTC },
360 { 1, TWL6030_BASEADD_PWM },
361 { 1, TWL6030_BASEADD_LED },
362 { 0, TWL6030_BASEADD_SECURED_REG },
Balaji T Ke8deb282009-12-14 00:25:31 +0100363
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100364 /* TWL6030 specific IPs */
365 { 0, TWL6030_BASEADD_ZERO },
366 { 1, TWL6030_BASEADD_ZERO },
367 { 2, TWL6030_BASEADD_ZERO },
368 { 1, TWL6030_BASEADD_GPADC_CTRL },
369 { 1, TWL6030_BASEADD_GASGAUGE },
Balaji T Ke8deb282009-12-14 00:25:31 +0100370};
371
Peter Ujfalusi2473d252012-11-13 09:28:44 +0100372static struct regmap_config twl6030_regmap_config[3] = {
373 {
374 /* Address 0x48 */
375 .reg_bits = 8,
376 .val_bits = 8,
377 .max_register = 0xff,
378 },
379 {
380 /* Address 0x49 */
381 .reg_bits = 8,
382 .val_bits = 8,
383 .max_register = 0xff,
384 },
385 {
386 /* Address 0x4a */
387 .reg_bits = 8,
388 .val_bits = 8,
389 .max_register = 0xff,
390 },
391};
392
David Brownella603a7f2008-10-15 12:15:39 +0200393/*----------------------------------------------------------------------*/
394
Peter Ujfalusi6dd810b2013-01-16 14:53:53 +0100395static inline int twl_get_num_slaves(void)
396{
397 if (twl_class_is_4030())
398 return 4; /* TWL4030 class have four slave address */
399 else
400 return 3; /* TWL6030 class have three slave address */
401}
402
Peter Ujfalusi5d4e9bd2013-01-16 14:53:50 +0100403static inline int twl_get_last_module(void)
404{
405 if (twl_class_is_4030())
406 return TWL4030_MODULE_LAST;
407 else
408 return TWL6030_MODULE_LAST;
409}
410
David Brownella603a7f2008-10-15 12:15:39 +0200411/* Exported Functions */
412
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +0100413unsigned int twl_rev(void)
414{
415 return twl_priv ? twl_priv->twl_id : 0;
416}
417EXPORT_SYMBOL(twl_rev);
418
David Brownella603a7f2008-10-15 12:15:39 +0200419/**
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200420 * twl_get_regmap - Get the regmap associated with the given module
421 * @mod_no: module number
422 *
423 * Returns the regmap pointer or NULL in case of failure.
424 */
425static struct regmap *twl_get_regmap(u8 mod_no)
426{
427 int sid;
428 struct twl_client *twl;
429
430 if (unlikely(!twl_priv || !twl_priv->ready)) {
431 pr_err("%s: not initialized\n", DRIVER_NAME);
432 return NULL;
433 }
434 if (unlikely(mod_no >= twl_get_last_module())) {
435 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
436 return NULL;
437 }
438
439 sid = twl_priv->twl_map[mod_no].sid;
440 twl = &twl_priv->twl_modules[sid];
441
442 return twl->regmap;
443}
444
445/**
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100446 * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
David Brownella603a7f2008-10-15 12:15:39 +0200447 * @mod_no: module number
448 * @value: an array of num_bytes+1 containing data to write
449 * @reg: register address (just offset will do)
450 * @num_bytes: number of bytes to transfer
451 *
David Brownella603a7f2008-10-15 12:15:39 +0200452 * Returns the result of operation - 0 is success
453 */
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100454int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
David Brownella603a7f2008-10-15 12:15:39 +0200455{
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200456 struct regmap *regmap = twl_get_regmap(mod_no);
David Brownella603a7f2008-10-15 12:15:39 +0200457 int ret;
David Brownella603a7f2008-10-15 12:15:39 +0200458
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200459 if (!regmap)
David Brownella603a7f2008-10-15 12:15:39 +0200460 return -EPERM;
Peter Ujfalusi050cde12013-01-16 14:53:51 +0100461
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200462 ret = regmap_bulk_write(regmap, twl_priv->twl_map[mod_no].base + reg,
463 value, num_bytes);
David Brownella603a7f2008-10-15 12:15:39 +0200464
Peter Ujfalusi2473d252012-11-13 09:28:44 +0100465 if (ret)
466 pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n",
467 DRIVER_NAME, mod_no, reg, num_bytes);
468
469 return ret;
David Brownella603a7f2008-10-15 12:15:39 +0200470}
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100471EXPORT_SYMBOL(twl_i2c_write);
David Brownella603a7f2008-10-15 12:15:39 +0200472
473/**
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100474 * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
David Brownella603a7f2008-10-15 12:15:39 +0200475 * @mod_no: module number
476 * @value: an array of num_bytes containing data to be read
477 * @reg: register address (just offset will do)
478 * @num_bytes: number of bytes to transfer
479 *
480 * Returns result of operation - num_bytes is success else failure.
481 */
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100482int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
David Brownella603a7f2008-10-15 12:15:39 +0200483{
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200484 struct regmap *regmap = twl_get_regmap(mod_no);
David Brownella603a7f2008-10-15 12:15:39 +0200485 int ret;
David Brownella603a7f2008-10-15 12:15:39 +0200486
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200487 if (!regmap)
David Brownella603a7f2008-10-15 12:15:39 +0200488 return -EPERM;
Peter Ujfalusi050cde12013-01-16 14:53:51 +0100489
Peter Ujfalusi8daf3542014-01-03 15:27:46 +0200490 ret = regmap_bulk_read(regmap, twl_priv->twl_map[mod_no].base + reg,
491 value, num_bytes);
David Brownella603a7f2008-10-15 12:15:39 +0200492
Peter Ujfalusi2473d252012-11-13 09:28:44 +0100493 if (ret)
494 pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n",
495 DRIVER_NAME, mod_no, reg, num_bytes);
496
497 return ret;
David Brownella603a7f2008-10-15 12:15:39 +0200498}
Balaji T Kfc7b92f2009-12-13 21:23:33 +0100499EXPORT_SYMBOL(twl_i2c_read);
David Brownella603a7f2008-10-15 12:15:39 +0200500
Peter Ujfalusi3def9272014-01-03 15:27:47 +0200501/**
502 * twl_regcache_bypass - Configure the regcache bypass for the regmap associated
503 * with the module
504 * @mod_no: module number
505 * @enable: Regcache bypass state
506 *
507 * Returns 0 else failure.
508 */
509int twl_set_regcache_bypass(u8 mod_no, bool enable)
510{
511 struct regmap *regmap = twl_get_regmap(mod_no);
512
513 if (!regmap)
514 return -EPERM;
515
516 regcache_cache_bypass(regmap, enable);
517
518 return 0;
519}
520EXPORT_SYMBOL(twl_set_regcache_bypass);
521
David Brownella603a7f2008-10-15 12:15:39 +0200522/*----------------------------------------------------------------------*/
523
Lesly A Mca972d12011-04-14 17:57:53 +0530524/**
525 * twl_read_idcode_register - API to read the IDCODE register.
526 *
527 * Unlocks the IDCODE register and read the 32 bit value.
528 */
529static int twl_read_idcode_register(void)
530{
531 int err;
532
533 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK,
534 REG_UNLOCK_TEST_REG);
535 if (err) {
536 pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err);
537 goto fail;
538 }
539
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +0100540 err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_priv->twl_idcode),
Lesly A Mca972d12011-04-14 17:57:53 +0530541 REG_IDCODE_7_0, 4);
542 if (err) {
543 pr_err("TWL4030: unable to read IDCODE -%d\n", err);
544 goto fail;
545 }
546
547 err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG);
548 if (err)
549 pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err);
550fail:
551 return err;
552}
553
554/**
555 * twl_get_type - API to get TWL Si type.
556 *
557 * Api to get the TWL Si type from IDCODE value.
558 */
559int twl_get_type(void)
560{
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +0100561 return TWL_SIL_TYPE(twl_priv->twl_idcode);
Lesly A Mca972d12011-04-14 17:57:53 +0530562}
563EXPORT_SYMBOL_GPL(twl_get_type);
564
565/**
566 * twl_get_version - API to get TWL Si version.
567 *
568 * Api to get the TWL Si version from IDCODE value.
569 */
570int twl_get_version(void)
571{
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +0100572 return TWL_SIL_REV(twl_priv->twl_idcode);
Lesly A Mca972d12011-04-14 17:57:53 +0530573}
574EXPORT_SYMBOL_GPL(twl_get_version);
575
Peter Ujfalusi2275c542012-09-10 13:46:22 +0300576/**
577 * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate.
578 *
579 * Api to get the TWL HFCLK rate based on BOOT_CFG register.
580 */
581int twl_get_hfclk_rate(void)
582{
583 u8 ctrl;
584 int rate;
585
586 twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT);
587
588 switch (ctrl & 0x3) {
589 case HFCLK_FREQ_19p2_MHZ:
590 rate = 19200000;
591 break;
592 case HFCLK_FREQ_26_MHZ:
593 rate = 26000000;
594 break;
595 case HFCLK_FREQ_38p4_MHZ:
596 rate = 38400000;
597 break;
598 default:
599 pr_err("TWL4030: HFCLK is not configured\n");
600 rate = -EINVAL;
601 break;
602 }
603
604 return rate;
605}
606EXPORT_SYMBOL_GPL(twl_get_hfclk_rate);
607
David Brownelldad759f2008-12-01 00:43:58 +0100608static struct device *
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100609add_numbered_child(unsigned mod_no, const char *name, int num,
David Brownell5725d662008-12-01 00:31:04 +0100610 void *pdata, unsigned pdata_len,
611 bool can_wakeup, int irq0, int irq1)
612{
613 struct platform_device *pdev;
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100614 struct twl_client *twl;
615 int status, sid;
616
617 if (unlikely(mod_no >= twl_get_last_module())) {
618 pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
619 return ERR_PTR(-EPERM);
620 }
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +0100621 sid = twl_priv->twl_map[mod_no].sid;
622 twl = &twl_priv->twl_modules[sid];
David Brownell5725d662008-12-01 00:31:04 +0100623
David Brownelldad759f2008-12-01 00:43:58 +0100624 pdev = platform_device_alloc(name, num);
David Brownell5725d662008-12-01 00:31:04 +0100625 if (!pdev) {
626 dev_dbg(&twl->client->dev, "can't alloc dev\n");
627 status = -ENOMEM;
628 goto err;
629 }
630
David Brownell5725d662008-12-01 00:31:04 +0100631 pdev->dev.parent = &twl->client->dev;
632
633 if (pdata) {
634 status = platform_device_add_data(pdev, pdata, pdata_len);
635 if (status < 0) {
636 dev_dbg(&pdev->dev, "can't add platform_data\n");
637 goto err;
638 }
639 }
640
641 if (irq0) {
642 struct resource r[2] = {
643 { .start = irq0, .flags = IORESOURCE_IRQ, },
644 { .start = irq1, .flags = IORESOURCE_IRQ, },
645 };
646
647 status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
648 if (status < 0) {
649 dev_dbg(&pdev->dev, "can't add irqs\n");
650 goto err;
651 }
652 }
653
654 status = platform_device_add(pdev);
NeilBrown17ffba62012-07-07 08:51:03 +1000655 if (status == 0)
656 device_init_wakeup(&pdev->dev, can_wakeup);
David Brownell5725d662008-12-01 00:31:04 +0100657
658err:
659 if (status < 0) {
660 platform_device_put(pdev);
661 dev_err(&twl->client->dev, "can't add %s dev\n", name);
662 return ERR_PTR(status);
663 }
664 return &pdev->dev;
665}
666
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100667static inline struct device *add_child(unsigned mod_no, const char *name,
David Brownelldad759f2008-12-01 00:43:58 +0100668 void *pdata, unsigned pdata_len,
669 bool can_wakeup, int irq0, int irq1)
670{
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100671 return add_numbered_child(mod_no, name, -1, pdata, pdata_len,
David Brownelldad759f2008-12-01 00:43:58 +0100672 can_wakeup, irq0, irq1);
673}
674
675static struct device *
676add_regulator_linked(int num, struct regulator_init_data *pdata,
677 struct regulator_consumer_supply *consumers,
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100678 unsigned num_consumers, unsigned long features)
David Brownelldad759f2008-12-01 00:43:58 +0100679{
Tero Kristo63bfff42012-02-16 12:27:52 +0200680 struct twl_regulator_driver_data drv_data;
681
David Brownelldad759f2008-12-01 00:43:58 +0100682 /* regulator framework demands init_data ... */
683 if (!pdata)
684 return NULL;
685
David Brownellb73eac72008-12-07 19:10:58 +0100686 if (consumers) {
David Brownelldad759f2008-12-01 00:43:58 +0100687 pdata->consumer_supplies = consumers;
688 pdata->num_consumer_supplies = num_consumers;
689 }
690
Tero Kristo63bfff42012-02-16 12:27:52 +0200691 if (pdata->driver_data) {
692 /* If we have existing drv_data, just add the flags */
693 struct twl_regulator_driver_data *tmp;
694 tmp = pdata->driver_data;
695 tmp->features |= features;
696 } else {
697 /* add new driver data struct, used only during init */
698 drv_data.features = features;
699 drv_data.set_voltage = NULL;
700 drv_data.get_voltage = NULL;
701 drv_data.data = NULL;
702 pdata->driver_data = &drv_data;
703 }
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100704
David Brownelldad759f2008-12-01 00:43:58 +0100705 /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100706 return add_numbered_child(TWL_MODULE_PM_MASTER, "twl_reg", num,
David Brownelldad759f2008-12-01 00:43:58 +0100707 pdata, sizeof(*pdata), false, 0, 0);
708}
709
710static struct device *
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100711add_regulator(int num, struct regulator_init_data *pdata,
712 unsigned long features)
David Brownelldad759f2008-12-01 00:43:58 +0100713{
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100714 return add_regulator_linked(num, pdata, NULL, 0, features);
David Brownelldad759f2008-12-01 00:43:58 +0100715}
716
David Brownella603a7f2008-10-15 12:15:39 +0200717/*
David Brownella30d46c2008-10-20 23:46:28 +0200718 * NOTE: We know the first 8 IRQs after pdata->base_irq are
719 * for the PIH, and the next are for the PWR_INT SIH, since
720 * that's how twl_init_irq() sets things up.
David Brownella603a7f2008-10-15 12:15:39 +0200721 */
David Brownella603a7f2008-10-15 12:15:39 +0200722
David Brownelldad759f2008-12-01 00:43:58 +0100723static int
Felipe Balbi9e178622012-02-22 14:32:16 +0200724add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
725 unsigned long features)
David Brownella603a7f2008-10-15 12:15:39 +0200726{
David Brownell5725d662008-12-01 00:31:04 +0100727 struct device *child;
David Brownella603a7f2008-10-15 12:15:39 +0200728
Thierry Redingf78959c2012-09-18 10:29:50 +0200729 if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100730 child = add_child(TWL4030_MODULE_GPIO, "twl4030_gpio",
David Brownell5725d662008-12-01 00:31:04 +0100731 pdata->gpio, sizeof(*pdata->gpio),
Felipe Balbi9e178622012-02-22 14:32:16 +0200732 false, irq_base + GPIO_INTR_OFFSET, 0);
David Brownell5725d662008-12-01 00:31:04 +0100733 if (IS_ERR(child))
734 return PTR_ERR(child);
David Brownella603a7f2008-10-15 12:15:39 +0200735 }
736
Thierry Redingf78959c2012-09-18 10:29:50 +0200737 if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100738 child = add_child(TWL4030_MODULE_KEYPAD, "twl4030_keypad",
David Brownell5725d662008-12-01 00:31:04 +0100739 pdata->keypad, sizeof(*pdata->keypad),
Felipe Balbi9e178622012-02-22 14:32:16 +0200740 true, irq_base + KEYPAD_INTR_OFFSET, 0);
David Brownell5725d662008-12-01 00:31:04 +0100741 if (IS_ERR(child))
742 return PTR_ERR(child);
David Brownella603a7f2008-10-15 12:15:39 +0200743 }
744
Peter Ujfalusi24ae36f2012-11-13 09:28:42 +0100745 if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc &&
746 twl_class_is_4030()) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100747 child = add_child(TWL4030_MODULE_MADC, "twl4030_madc",
David Brownell5725d662008-12-01 00:31:04 +0100748 pdata->madc, sizeof(*pdata->madc),
Felipe Balbi9e178622012-02-22 14:32:16 +0200749 true, irq_base + MADC_INTR_OFFSET, 0);
David Brownell5725d662008-12-01 00:31:04 +0100750 if (IS_ERR(child))
751 return PTR_ERR(child);
David Brownella603a7f2008-10-15 12:15:39 +0200752 }
753
Thierry Redingf78959c2012-09-18 10:29:50 +0200754 if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) {
David Brownella603a7f2008-10-15 12:15:39 +0200755 /*
David Brownell5725d662008-12-01 00:31:04 +0100756 * REVISIT platform_data here currently might expose the
David Brownella603a7f2008-10-15 12:15:39 +0200757 * "msecure" line ... but for now we just expect board
David Brownell5725d662008-12-01 00:31:04 +0100758 * setup to tell the chip "it's always ok to SET_TIME".
David Brownella603a7f2008-10-15 12:15:39 +0200759 * Eventually, Linux might become more aware of such
760 * HW security concerns, and "least privilege".
761 */
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100762 child = add_child(TWL_MODULE_RTC, "twl_rtc", NULL, 0,
Felipe Balbi9e178622012-02-22 14:32:16 +0200763 true, irq_base + RTC_INTR_OFFSET, 0);
David Brownell5725d662008-12-01 00:31:04 +0100764 if (IS_ERR(child))
765 return PTR_ERR(child);
David Brownella603a7f2008-10-15 12:15:39 +0200766 }
767
Peter Ujfalusiafc45892012-11-13 09:28:43 +0100768 if (IS_ENABLED(CONFIG_PWM_TWL)) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100769 child = add_child(TWL_MODULE_PWM, "twl-pwm", NULL, 0,
Peter Ujfalusiafc45892012-11-13 09:28:43 +0100770 false, 0, 0);
771 if (IS_ERR(child))
772 return PTR_ERR(child);
773 }
774
775 if (IS_ENABLED(CONFIG_PWM_TWL_LED)) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100776 child = add_child(TWL_MODULE_LED, "twl-pwmled", NULL, 0,
Thierry Reding48a364b2012-09-18 10:29:51 +0200777 false, 0, 0);
778 if (IS_ERR(child))
779 return PTR_ERR(child);
780 }
781
Thierry Redingf78959c2012-09-18 10:29:50 +0200782 if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb &&
783 twl_class_is_4030()) {
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300784
785 static struct regulator_consumer_supply usb1v5 = {
786 .supply = "usb1v5",
787 };
788 static struct regulator_consumer_supply usb1v8 = {
789 .supply = "usb1v8",
790 };
NeilBrownab378132012-05-09 07:40:40 +1000791 static struct regulator_consumer_supply usb3v1[] = {
792 { .supply = "usb3v1" },
793 { .supply = "bci3v1" },
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300794 };
795
796 /* First add the regulators so that they can be used by transceiver */
Thierry Redingf78959c2012-09-18 10:29:50 +0200797 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) {
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300798 /* this is a template that gets copied */
799 struct regulator_init_data usb_fixed = {
800 .constraints.valid_modes_mask =
801 REGULATOR_MODE_NORMAL
802 | REGULATOR_MODE_STANDBY,
803 .constraints.valid_ops_mask =
804 REGULATOR_CHANGE_MODE
805 | REGULATOR_CHANGE_STATUS,
806 };
807
808 child = add_regulator_linked(TWL4030_REG_VUSB1V5,
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100809 &usb_fixed, &usb1v5, 1,
810 features);
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300811 if (IS_ERR(child))
812 return PTR_ERR(child);
813
814 child = add_regulator_linked(TWL4030_REG_VUSB1V8,
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100815 &usb_fixed, &usb1v8, 1,
816 features);
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300817 if (IS_ERR(child))
818 return PTR_ERR(child);
819
820 child = add_regulator_linked(TWL4030_REG_VUSB3V1,
NeilBrownab378132012-05-09 07:40:40 +1000821 &usb_fixed, usb3v1, 2,
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100822 features);
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300823 if (IS_ERR(child))
824 return PTR_ERR(child);
825
826 }
827
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100828 child = add_child(TWL_MODULE_USB, "twl4030_usb",
Peter Ujfalusi2d86ad32012-11-13 09:28:46 +0100829 pdata->usb, sizeof(*pdata->usb), true,
David Brownell5725d662008-12-01 00:31:04 +0100830 /* irq0 = USB_PRES, irq1 = USB */
Felipe Balbi9e178622012-02-22 14:32:16 +0200831 irq_base + USB_PRES_INTR_OFFSET,
832 irq_base + USB_INTR_OFFSET);
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300833
David Brownell5725d662008-12-01 00:31:04 +0100834 if (IS_ERR(child))
835 return PTR_ERR(child);
David Brownelldad759f2008-12-01 00:43:58 +0100836
837 /* we need to connect regulators to this transceiver */
Thierry Redingf78959c2012-09-18 10:29:50 +0200838 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) {
Mark Brown1b65fa82012-02-03 11:02:58 +0000839 usb1v5.dev_name = dev_name(child);
840 usb1v8.dev_name = dev_name(child);
NeilBrownab378132012-05-09 07:40:40 +1000841 usb3v1[0].dev_name = dev_name(child);
Roger Quadrosf8ebdff2009-09-30 18:26:37 +0300842 }
David Brownelldad759f2008-12-01 00:43:58 +0100843 }
844
Thierry Redingf78959c2012-09-18 10:29:50 +0200845 if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100846 child = add_child(TWL_MODULE_PM_RECEIVER, "twl4030_wdt", NULL,
847 0, false, 0, 0);
Timo Kokkonen80e45b12009-03-27 16:42:17 +0200848 if (IS_ERR(child))
849 return PTR_ERR(child);
850 }
851
Thierry Redingf78959c2012-09-18 10:29:50 +0200852 if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100853 child = add_child(TWL_MODULE_PM_MASTER, "twl4030_pwrbutton",
854 NULL, 0, true, irq_base + 8 + 0, 0);
Felipe Balbi9c3664d2009-08-03 18:16:38 +0200855 if (IS_ERR(child))
856 return PTR_ERR(child);
857 }
858
Thierry Redingf78959c2012-09-18 10:29:50 +0200859 if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio &&
860 twl_class_is_4030()) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100861 child = add_child(TWL4030_MODULE_AUDIO_VOICE, "twl4030-audio",
Peter Ujfalusi4ae6df52011-05-31 15:21:13 +0300862 pdata->audio, sizeof(*pdata->audio),
Misael Lopez Cruzd62abe52010-02-23 18:10:19 -0600863 false, 0, 0);
864 if (IS_ERR(child))
865 return PTR_ERR(child);
866 }
867
Rajendra Nayak9da66532009-12-13 22:29:47 +0100868 /* twl4030 regulators */
Thierry Redingf78959c2012-09-18 10:29:50 +0200869 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) {
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100870 child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
871 features);
David Brownelldad759f2008-12-01 00:43:58 +0100872 if (IS_ERR(child))
873 return PTR_ERR(child);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100874
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100875 child = add_regulator(TWL4030_REG_VIO, pdata->vio,
876 features);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100877 if (IS_ERR(child))
878 return PTR_ERR(child);
879
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100880 child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1,
881 features);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100882 if (IS_ERR(child))
883 return PTR_ERR(child);
884
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100885 child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2,
886 features);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100887 if (IS_ERR(child))
888 return PTR_ERR(child);
David Brownelldad759f2008-12-01 00:43:58 +0100889
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100890 child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1,
891 features);
David Brownelldad759f2008-12-01 00:43:58 +0100892 if (IS_ERR(child))
893 return PTR_ERR(child);
894
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100895 child = add_regulator(TWL4030_REG_VDAC, pdata->vdac,
896 features);
David Brownelldad759f2008-12-01 00:43:58 +0100897 if (IS_ERR(child))
898 return PTR_ERR(child);
899
900 child = add_regulator((features & TWL4030_VAUX2)
901 ? TWL4030_REG_VAUX2_4030
902 : TWL4030_REG_VAUX2,
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100903 pdata->vaux2, features);
David Brownelldad759f2008-12-01 00:43:58 +0100904 if (IS_ERR(child))
905 return PTR_ERR(child);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100906
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100907 child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1,
908 features);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100909 if (IS_ERR(child))
910 return PTR_ERR(child);
911
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100912 child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2,
913 features);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100914 if (IS_ERR(child))
915 return PTR_ERR(child);
916
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100917 child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig,
918 features);
Juha Keski-Saariab4abe052009-12-11 11:12:15 +0100919 if (IS_ERR(child))
920 return PTR_ERR(child);
David Brownelldad759f2008-12-01 00:43:58 +0100921 }
922
David Brownelldad759f2008-12-01 00:43:58 +0100923 /* maybe add LDOs that are omitted on cost-reduced parts */
Thierry Redingf78959c2012-09-18 10:29:50 +0200924 if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET)
Rajendra Nayak9da66532009-12-13 22:29:47 +0100925 && twl_class_is_4030()) {
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100926 child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
927 features);
David Brownelldad759f2008-12-01 00:43:58 +0100928 if (IS_ERR(child))
929 return PTR_ERR(child);
David Brownelldad759f2008-12-01 00:43:58 +0100930
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100931 child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2,
932 features);
David Brownelldad759f2008-12-01 00:43:58 +0100933 if (IS_ERR(child))
934 return PTR_ERR(child);
935
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100936 child = add_regulator(TWL4030_REG_VSIM, pdata->vsim,
937 features);
David Brownelldad759f2008-12-01 00:43:58 +0100938 if (IS_ERR(child))
939 return PTR_ERR(child);
940
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100941 child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1,
942 features);
David Brownelldad759f2008-12-01 00:43:58 +0100943 if (IS_ERR(child))
944 return PTR_ERR(child);
945
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100946 child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3,
947 features);
David Brownelldad759f2008-12-01 00:43:58 +0100948 if (IS_ERR(child))
949 return PTR_ERR(child);
950
Graeme Gregory521d8ec2011-05-12 14:27:55 +0100951 child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4,
952 features);
David Brownelldad759f2008-12-01 00:43:58 +0100953 if (IS_ERR(child))
954 return PTR_ERR(child);
David Brownella603a7f2008-10-15 12:15:39 +0200955 }
956
Thierry Redingf78959c2012-09-18 10:29:50 +0200957 if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci &&
Grazvydas Ignotas11c39c42010-10-01 13:17:50 +0300958 !(features & (TPS_SUBSET | TWL5031))) {
Peter Ujfalusi3c330272013-01-16 14:53:52 +0100959 child = add_child(TWL_MODULE_MAIN_CHARGE, "twl4030_bci",
Grazvydas Ignotas11c39c42010-10-01 13:17:50 +0300960 pdata->bci, sizeof(*pdata->bci), false,
961 /* irq0 = CHG_PRES, irq1 = BCI */
Felipe Balbi9e178622012-02-22 14:32:16 +0200962 irq_base + BCI_PRES_INTR_OFFSET,
963 irq_base + BCI_INTR_OFFSET);
Grazvydas Ignotas11c39c42010-10-01 13:17:50 +0300964 if (IS_ERR(child))
965 return PTR_ERR(child);
966 }
967
Florian Vaussard637d6892013-06-18 15:17:56 +0200968 if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power) {
969 child = add_child(TWL_MODULE_PM_MASTER, "twl4030_power",
970 pdata->power, sizeof(*pdata->power), false,
971 0, 0);
972 if (IS_ERR(child))
973 return PTR_ERR(child);
974 }
975
David Brownell5725d662008-12-01 00:31:04 +0100976 return 0;
David Brownella603a7f2008-10-15 12:15:39 +0200977}
978
979/*----------------------------------------------------------------------*/
980
981/*
982 * These three functions initialize the on-chip clock framework,
983 * letting it generate the right frequencies for USB, MADC, and
984 * other purposes.
985 */
986static inline int __init protect_pm_master(void)
987{
988 int e = 0;
989
Peter Ujfalusid640e752012-11-13 09:28:54 +0100990 e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0,
991 TWL4030_PM_MASTER_PROTECT_KEY);
David Brownella603a7f2008-10-15 12:15:39 +0200992 return e;
993}
994
995static inline int __init unprotect_pm_master(void)
996{
997 int e = 0;
998
Peter Ujfalusid640e752012-11-13 09:28:54 +0100999 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1,
1000 TWL4030_PM_MASTER_PROTECT_KEY);
1001 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2,
1002 TWL4030_PM_MASTER_PROTECT_KEY);
Felipe Balbi49e6f872010-08-18 09:19:35 +03001003
David Brownella603a7f2008-10-15 12:15:39 +02001004 return e;
1005}
1006
Ilkka Koskinen38a68492009-10-22 14:14:09 +03001007static void clocks_init(struct device *dev,
1008 struct twl4030_clock_init_data *clock)
David Brownella603a7f2008-10-15 12:15:39 +02001009{
1010 int e = 0;
1011 struct clk *osc;
1012 u32 rate;
1013 u8 ctrl = HFCLK_FREQ_26_MHZ;
1014
Tony Lindgrendefa6be2012-09-17 16:26:10 -07001015 osc = clk_get(dev, "fck");
David Brownella603a7f2008-10-15 12:15:39 +02001016 if (IS_ERR(osc)) {
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001017 printk(KERN_WARNING "Skipping twl internal clock init and "
David Brownella603a7f2008-10-15 12:15:39 +02001018 "using bootloader value (unknown osc rate)\n");
1019 return;
1020 }
1021
1022 rate = clk_get_rate(osc);
1023 clk_put(osc);
1024
1025 switch (rate) {
1026 case 19200000:
1027 ctrl = HFCLK_FREQ_19p2_MHZ;
1028 break;
1029 case 26000000:
1030 ctrl = HFCLK_FREQ_26_MHZ;
1031 break;
1032 case 38400000:
1033 ctrl = HFCLK_FREQ_38p4_MHZ;
1034 break;
1035 }
1036
1037 ctrl |= HIGH_PERF_SQ;
Ilkka Koskinen38a68492009-10-22 14:14:09 +03001038 if (clock && clock->ck32k_lowpwr_enable)
1039 ctrl |= CK32K_LOWPWR_EN;
1040
David Brownella603a7f2008-10-15 12:15:39 +02001041 e |= unprotect_pm_master();
1042 /* effect->MADC+USB ck en */
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001043 e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
David Brownella603a7f2008-10-15 12:15:39 +02001044 e |= protect_pm_master();
1045
1046 if (e < 0)
1047 pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
1048}
1049
1050/*----------------------------------------------------------------------*/
1051
David Brownella603a7f2008-10-15 12:15:39 +02001052
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001053static int twl_remove(struct i2c_client *client)
David Brownella603a7f2008-10-15 12:15:39 +02001054{
Peter Ujfalusi364cedb2012-01-04 14:58:33 +02001055 unsigned i, num_slaves;
David Brownella30d46c2008-10-20 23:46:28 +02001056 int status;
David Brownella603a7f2008-10-15 12:15:39 +02001057
Peter Ujfalusi6dd810b2013-01-16 14:53:53 +01001058 if (twl_class_is_4030())
Balaji T Ke8deb282009-12-14 00:25:31 +01001059 status = twl4030_exit_irq();
Peter Ujfalusi6dd810b2013-01-16 14:53:53 +01001060 else
Balaji T Ke8deb282009-12-14 00:25:31 +01001061 status = twl6030_exit_irq();
1062
David Brownella30d46c2008-10-20 23:46:28 +02001063 if (status < 0)
1064 return status;
David Brownella603a7f2008-10-15 12:15:39 +02001065
Peter Ujfalusi6dd810b2013-01-16 14:53:53 +01001066 num_slaves = twl_get_num_slaves();
Peter Ujfalusi364cedb2012-01-04 14:58:33 +02001067 for (i = 0; i < num_slaves; i++) {
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001068 struct twl_client *twl = &twl_priv->twl_modules[i];
David Brownella603a7f2008-10-15 12:15:39 +02001069
1070 if (twl->client && twl->client != client)
1071 i2c_unregister_device(twl->client);
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001072 twl->client = NULL;
David Brownella603a7f2008-10-15 12:15:39 +02001073 }
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001074 twl_priv->ready = false;
David Brownella603a7f2008-10-15 12:15:39 +02001075 return 0;
1076}
1077
Tony Lindgren80ec8312013-11-15 16:36:03 -08001078static struct of_dev_auxdata twl_auxdata_lookup[] = {
1079 OF_DEV_AUXDATA("ti,twl4030-gpio", 0, "twl4030-gpio", NULL),
1080 { /* sentinel */ },
1081};
1082
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001083/* NOTE: This driver only handles a single twl4030/tps659x0 chip */
Bill Pembertonf791be42012-11-19 13:23:04 -05001084static int
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001085twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
David Brownella603a7f2008-10-15 12:15:39 +02001086{
Jingoo Han334a41c2013-07-30 17:10:05 +09001087 struct twl4030_platform_data *pdata = dev_get_platdata(&client->dev);
Benoit Coussonaeb50322011-08-29 16:20:23 +02001088 struct device_node *node = client->dev.of_node;
Tony Lindgrendefa6be2012-09-17 16:26:10 -07001089 struct platform_device *pdev;
Peter Ujfalusi2473d252012-11-13 09:28:44 +01001090 struct regmap_config *twl_regmap_config;
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001091 int irq_base = 0;
1092 int status;
Peter Ujfalusi364cedb2012-01-04 14:58:33 +02001093 unsigned i, num_slaves;
Benoit Coussonaeb50322011-08-29 16:20:23 +02001094
Peter Ujfalusi7e2e6c52013-01-16 14:53:55 +01001095 if (!node && !pdata) {
1096 dev_err(&client->dev, "no platform data\n");
1097 return -EINVAL;
1098 }
1099
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001100 if (twl_priv) {
Peter Ujfalusi6382a062013-01-16 14:53:56 +01001101 dev_dbg(&client->dev, "only one instance of %s allowed\n",
1102 DRIVER_NAME);
1103 return -EBUSY;
1104 }
1105
Tony Lindgrendefa6be2012-09-17 16:26:10 -07001106 pdev = platform_device_alloc(DRIVER_NAME, -1);
1107 if (!pdev) {
1108 dev_err(&client->dev, "can't alloc pdev\n");
1109 return -ENOMEM;
1110 }
1111
1112 status = platform_device_add(pdev);
1113 if (status) {
1114 platform_device_put(pdev);
1115 return status;
1116 }
1117
David Brownella603a7f2008-10-15 12:15:39 +02001118 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
1119 dev_dbg(&client->dev, "can't talk I2C?\n");
Tony Lindgrendefa6be2012-09-17 16:26:10 -07001120 status = -EIO;
1121 goto free;
David Brownella603a7f2008-10-15 12:15:39 +02001122 }
1123
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001124 twl_priv = devm_kzalloc(&client->dev, sizeof(struct twl_private),
1125 GFP_KERNEL);
1126 if (!twl_priv) {
1127 status = -ENOMEM;
1128 goto free;
1129 }
1130
Peter Ujfalusi364cedb2012-01-04 14:58:33 +02001131 if ((id->driver_data) & TWL6030_CLASS) {
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001132 twl_priv->twl_id = TWL6030_CLASS_ID;
1133 twl_priv->twl_map = &twl6030_map[0];
Graeme Gregory89ce43f2013-06-19 15:24:02 +03001134 /* The charger base address is different in twl6032 */
1135 if ((id->driver_data) & TWL6032_SUBCLASS)
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001136 twl_priv->twl_map[TWL_MODULE_MAIN_CHARGE].base =
Graeme Gregory89ce43f2013-06-19 15:24:02 +03001137 TWL6032_BASEADD_CHARGER;
Peter Ujfalusi2473d252012-11-13 09:28:44 +01001138 twl_regmap_config = twl6030_regmap_config;
Peter Ujfalusi364cedb2012-01-04 14:58:33 +02001139 } else {
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001140 twl_priv->twl_id = TWL4030_CLASS_ID;
1141 twl_priv->twl_map = &twl4030_map[0];
Peter Ujfalusi2473d252012-11-13 09:28:44 +01001142 twl_regmap_config = twl4030_regmap_config;
Peter Ujfalusi6dd810b2013-01-16 14:53:53 +01001143 }
1144
1145 num_slaves = twl_get_num_slaves();
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001146 twl_priv->twl_modules = devm_kzalloc(&client->dev,
1147 sizeof(struct twl_client) * num_slaves,
1148 GFP_KERNEL);
1149 if (!twl_priv->twl_modules) {
Peter Ujfalusi6dd810b2013-01-16 14:53:53 +01001150 status = -ENOMEM;
1151 goto free;
Peter Ujfalusi364cedb2012-01-04 14:58:33 +02001152 }
1153
1154 for (i = 0; i < num_slaves; i++) {
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001155 struct twl_client *twl = &twl_priv->twl_modules[i];
David Brownella603a7f2008-10-15 12:15:39 +02001156
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001157 if (i == 0) {
David Brownella603a7f2008-10-15 12:15:39 +02001158 twl->client = client;
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001159 } else {
David Brownella603a7f2008-10-15 12:15:39 +02001160 twl->client = i2c_new_dummy(client->adapter,
Peter Ujfalusi2473d252012-11-13 09:28:44 +01001161 client->addr + i);
David Brownella603a7f2008-10-15 12:15:39 +02001162 if (!twl->client) {
Ilkka Koskinena8643432009-10-20 16:22:52 +03001163 dev_err(&client->dev,
David Brownella603a7f2008-10-15 12:15:39 +02001164 "can't attach client %d\n", i);
1165 status = -ENOMEM;
1166 goto fail;
1167 }
David Brownella603a7f2008-10-15 12:15:39 +02001168 }
Peter Ujfalusi2473d252012-11-13 09:28:44 +01001169
1170 twl->regmap = devm_regmap_init_i2c(twl->client,
1171 &twl_regmap_config[i]);
1172 if (IS_ERR(twl->regmap)) {
1173 status = PTR_ERR(twl->regmap);
1174 dev_err(&client->dev,
1175 "Failed to allocate regmap %d, err: %d\n", i,
1176 status);
1177 goto fail;
1178 }
David Brownella603a7f2008-10-15 12:15:39 +02001179 }
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001180
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001181 twl_priv->ready = true;
David Brownella603a7f2008-10-15 12:15:39 +02001182
1183 /* setup clock framework */
Peter Ujfalusi7e2e6c52013-01-16 14:53:55 +01001184 clocks_init(&pdev->dev, pdata ? pdata->clock : NULL);
David Brownella603a7f2008-10-15 12:15:39 +02001185
Lesly A Mca972d12011-04-14 17:57:53 +05301186 /* read TWL IDCODE Register */
Peter Ujfalusi80a97cc2013-01-16 14:53:57 +01001187 if (twl_class_is_4030()) {
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001188 status = twl_read_idcode_register();
1189 WARN(status < 0, "Error: reading twl_idcode register value\n");
Lesly A Mca972d12011-04-14 17:57:53 +05301190 }
1191
David Brownella603a7f2008-10-15 12:15:39 +02001192 /* Maybe init the T2 Interrupt subsystem */
Felipe Balbi9e178622012-02-22 14:32:16 +02001193 if (client->irq) {
Balaji T Ke8deb282009-12-14 00:25:31 +01001194 if (twl_class_is_4030()) {
1195 twl4030_init_chip_irq(id->name);
Benoit Cousson78518ff2012-02-29 19:40:31 +01001196 irq_base = twl4030_init_irq(&client->dev, client->irq);
Balaji T Ke8deb282009-12-14 00:25:31 +01001197 } else {
Benoit Cousson78518ff2012-02-29 19:40:31 +01001198 irq_base = twl6030_init_irq(&client->dev, client->irq);
Balaji T Ke8deb282009-12-14 00:25:31 +01001199 }
1200
Benoit Cousson78518ff2012-02-29 19:40:31 +01001201 if (irq_base < 0) {
1202 status = irq_base;
David Brownella30d46c2008-10-20 23:46:28 +02001203 goto fail;
Benoit Cousson78518ff2012-02-29 19:40:31 +01001204 }
David Brownella603a7f2008-10-15 12:15:39 +02001205 }
1206
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001207 /*
1208 * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
Moiz Sonasatha29aaf52010-02-16 18:57:21 -06001209 * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1210 * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
Tony Lindgrena613b732014-04-10 16:47:18 -07001211 *
1212 * Also, always enable SmartReflex bit as that's needed for omaps to
1213 * to do anything over I2C4 for voltage scaling even if SmartReflex
1214 * is disabled. Without the SmartReflex bit omap sys_clkreq idle
1215 * signal will never trigger for retention idle.
Moiz Sonasatha29aaf52010-02-16 18:57:21 -06001216 */
Moiz Sonasatha29aaf52010-02-16 18:57:21 -06001217 if (twl_class_is_4030()) {
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001218 u8 temp;
1219
Moiz Sonasatha29aaf52010-02-16 18:57:21 -06001220 twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
1221 temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001222 I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
Moiz Sonasatha29aaf52010-02-16 18:57:21 -06001223 twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
Tony Lindgrena613b732014-04-10 16:47:18 -07001224
1225 twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &temp,
1226 TWL4030_DCDC_GLOBAL_CFG);
1227 temp |= SMARTREFLEX_ENABLE;
1228 twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, temp,
1229 TWL4030_DCDC_GLOBAL_CFG);
Moiz Sonasatha29aaf52010-02-16 18:57:21 -06001230 }
1231
Tony Lindgren80ec8312013-11-15 16:36:03 -08001232 if (node) {
1233 if (pdata)
1234 twl_auxdata_lookup[0].platform_data = pdata->gpio;
1235 status = of_platform_populate(node, NULL, twl_auxdata_lookup,
1236 &client->dev);
1237 } else {
Felipe Balbi9e178622012-02-22 14:32:16 +02001238 status = add_children(pdata, irq_base, id->driver_data);
Tony Lindgren80ec8312013-11-15 16:36:03 -08001239 }
Benoit Coussonaeb50322011-08-29 16:20:23 +02001240
David Brownella603a7f2008-10-15 12:15:39 +02001241fail:
1242 if (status < 0)
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001243 twl_remove(client);
Tony Lindgrendefa6be2012-09-17 16:26:10 -07001244free:
1245 if (status < 0)
1246 platform_device_unregister(pdev);
Benoit Coussonec1a07b2012-03-02 11:11:26 +01001247
David Brownella603a7f2008-10-15 12:15:39 +02001248 return status;
1249}
1250
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001251static const struct i2c_device_id twl_ids[] = {
David Brownelldad759f2008-12-01 00:43:58 +01001252 { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
1253 { "twl5030", 0 }, /* T2 updated */
Ilkka Koskinen1920a612009-11-10 17:26:15 +02001254 { "twl5031", TWL5031 }, /* TWL5030 updated */
David Brownelldad759f2008-12-01 00:43:58 +01001255 { "tps65950", 0 }, /* catalog version of twl5030 */
1256 { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
1257 { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
Oleg Drokin59dead52011-07-01 13:34:13 +02001258 { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED
1259 and vibrator. Charger in USB module*/
Balaji T Ke8deb282009-12-14 00:25:31 +01001260 { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
Graeme Gregory89ce43f2013-06-19 15:24:02 +03001261 { "twl6032", TWL6030_CLASS | TWL6032_SUBCLASS }, /* "Phoenix lite" */
David Brownella603a7f2008-10-15 12:15:39 +02001262 { /* end of list */ },
1263};
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001264MODULE_DEVICE_TABLE(i2c, twl_ids);
David Brownella603a7f2008-10-15 12:15:39 +02001265
1266/* One Client Driver , 4 Clients */
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001267static struct i2c_driver twl_driver = {
David Brownella603a7f2008-10-15 12:15:39 +02001268 .driver.name = DRIVER_NAME,
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001269 .id_table = twl_ids,
1270 .probe = twl_probe,
1271 .remove = twl_remove,
David Brownella603a7f2008-10-15 12:15:39 +02001272};
1273
Grygorii Strashko032fa162013-04-23 16:19:10 +03001274module_i2c_driver(twl_driver);
David Brownella603a7f2008-10-15 12:15:39 +02001275
1276MODULE_AUTHOR("Texas Instruments, Inc.");
Balaji T Kfc7b92f2009-12-13 21:23:33 +01001277MODULE_DESCRIPTION("I2C Core interface for TWL");
David Brownella603a7f2008-10-15 12:15:39 +02001278MODULE_LICENSE("GPL");