David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1 | /* |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 2 | * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM |
| 3 | * and audio CODEC devices |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 4 | * |
| 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 Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 31 | #include <linux/init.h> |
| 32 | #include <linux/mutex.h> |
Paul Gortmaker | 4e36dd3 | 2011-07-03 15:13:27 -0400 | [diff] [blame] | 33 | #include <linux/module.h> |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 34 | #include <linux/platform_device.h> |
| 35 | #include <linux/clk.h> |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 36 | #include <linux/err.h> |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 37 | #include <linux/device.h> |
| 38 | #include <linux/of.h> |
| 39 | #include <linux/of_irq.h> |
| 40 | #include <linux/of_platform.h> |
Grant Likely | e7cc3ac | 2012-03-02 21:05:31 -0700 | [diff] [blame] | 41 | #include <linux/irq.h> |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 42 | #include <linux/irqdomain.h> |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 43 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 44 | #include <linux/regulator/machine.h> |
| 45 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 46 | #include <linux/i2c.h> |
Santosh Shilimkar | b07682b | 2009-12-13 20:05:51 +0100 | [diff] [blame] | 47 | #include <linux/i2c/twl.h> |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 48 | |
Benoit Cousson | 1b8f333 | 2012-02-29 19:28:14 +0100 | [diff] [blame] | 49 | #include "twl-core.h" |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 50 | |
| 51 | /* |
| 52 | * The TWL4030 "Triton 2" is one of a family of a multi-function "Power |
| 53 | * Management and System Companion Device" chips originally designed for |
| 54 | * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, |
| 55 | * often at around 3 Mbit/sec, including for interrupt handling. |
| 56 | * |
| 57 | * This driver core provides genirq support for the interrupts emitted, |
| 58 | * by the various modules, and exports register access primitives. |
| 59 | * |
| 60 | * FIXME this driver currently requires use of the first interrupt line |
| 61 | * (and associated registers). |
| 62 | */ |
| 63 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 64 | #define DRIVER_NAME "twl" |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 65 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 66 | /* Triton Core internal information (BEGIN) */ |
| 67 | |
| 68 | /* Last - for index max*/ |
| 69 | #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG |
| 70 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 71 | #define TWL_NUM_SLAVES 4 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 72 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 73 | #define SUB_CHIP_ID0 0 |
| 74 | #define SUB_CHIP_ID1 1 |
| 75 | #define SUB_CHIP_ID2 2 |
| 76 | #define SUB_CHIP_ID3 3 |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 77 | #define SUB_CHIP_ID_INVAL 0xff |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 78 | |
| 79 | #define TWL_MODULE_LAST TWL4030_MODULE_LAST |
| 80 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 81 | /* Base Address defns for twl4030_map[] */ |
| 82 | |
| 83 | /* subchip/slave 0 - USB ID */ |
| 84 | #define TWL4030_BASEADD_USB 0x0000 |
| 85 | |
| 86 | /* subchip/slave 1 - AUD ID */ |
| 87 | #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 |
| 88 | #define TWL4030_BASEADD_GPIO 0x0098 |
| 89 | #define TWL4030_BASEADD_INTBR 0x0085 |
| 90 | #define TWL4030_BASEADD_PIH 0x0080 |
| 91 | #define TWL4030_BASEADD_TEST 0x004C |
| 92 | |
| 93 | /* subchip/slave 2 - AUX ID */ |
| 94 | #define TWL4030_BASEADD_INTERRUPTS 0x00B9 |
| 95 | #define TWL4030_BASEADD_LED 0x00EE |
| 96 | #define TWL4030_BASEADD_MADC 0x0000 |
| 97 | #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 |
| 98 | #define TWL4030_BASEADD_PRECHARGE 0x00AA |
| 99 | #define TWL4030_BASEADD_PWM0 0x00F8 |
| 100 | #define TWL4030_BASEADD_PWM1 0x00FB |
| 101 | #define TWL4030_BASEADD_PWMA 0x00EF |
| 102 | #define TWL4030_BASEADD_PWMB 0x00F1 |
| 103 | #define TWL4030_BASEADD_KEYPAD 0x00D2 |
| 104 | |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 105 | #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ |
| 106 | #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's |
| 107 | one */ |
| 108 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 109 | /* subchip/slave 3 - POWER ID */ |
| 110 | #define TWL4030_BASEADD_BACKUP 0x0014 |
| 111 | #define TWL4030_BASEADD_INT 0x002E |
| 112 | #define TWL4030_BASEADD_PM_MASTER 0x0036 |
| 113 | #define TWL4030_BASEADD_PM_RECEIVER 0x005B |
| 114 | #define TWL4030_BASEADD_RTC 0x001C |
| 115 | #define TWL4030_BASEADD_SECURED_REG 0x0000 |
| 116 | |
| 117 | /* Triton Core internal information (END) */ |
| 118 | |
| 119 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 120 | /* subchip/slave 0 0x48 - POWER */ |
| 121 | #define TWL6030_BASEADD_RTC 0x0000 |
| 122 | #define TWL6030_BASEADD_MEM 0x0017 |
| 123 | #define TWL6030_BASEADD_PM_MASTER 0x001F |
| 124 | #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ |
| 125 | #define TWL6030_BASEADD_PM_MISC 0x00E2 |
| 126 | #define TWL6030_BASEADD_PM_PUPD 0x00F0 |
| 127 | |
| 128 | /* subchip/slave 1 0x49 - FEATURE */ |
| 129 | #define TWL6030_BASEADD_USB 0x0000 |
| 130 | #define TWL6030_BASEADD_GPADC_CTRL 0x002E |
| 131 | #define TWL6030_BASEADD_AUX 0x0090 |
| 132 | #define TWL6030_BASEADD_PWM 0x00BA |
| 133 | #define TWL6030_BASEADD_GASGAUGE 0x00C0 |
| 134 | #define TWL6030_BASEADD_PIH 0x00D0 |
| 135 | #define TWL6030_BASEADD_CHARGER 0x00E0 |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 136 | #define TWL6025_BASEADD_CHARGER 0x00DA |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 137 | |
| 138 | /* subchip/slave 2 0x4A - DFT */ |
| 139 | #define TWL6030_BASEADD_DIEID 0x00C0 |
| 140 | |
| 141 | /* subchip/slave 3 0x4B - AUDIO */ |
| 142 | #define TWL6030_BASEADD_AUDIO 0x0000 |
| 143 | #define TWL6030_BASEADD_RSV 0x0000 |
Balaji T K | fa0d976 | 2010-02-19 12:39:38 +0100 | [diff] [blame] | 144 | #define TWL6030_BASEADD_ZERO 0x0000 |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 145 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 146 | /* Few power values */ |
| 147 | #define R_CFG_BOOT 0x05 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 148 | |
| 149 | /* some fields in R_CFG_BOOT */ |
| 150 | #define HFCLK_FREQ_19p2_MHZ (1 << 0) |
| 151 | #define HFCLK_FREQ_26_MHZ (2 << 0) |
| 152 | #define HFCLK_FREQ_38p4_MHZ (3 << 0) |
| 153 | #define HIGH_PERF_SQ (1 << 3) |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 154 | #define CK32K_LOWPWR_EN (1 << 7) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 155 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 156 | /*----------------------------------------------------------------------*/ |
| 157 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 158 | /* is driver active, bound to a chip? */ |
| 159 | static bool inuse; |
| 160 | |
Lesly A M | ca972d1 | 2011-04-14 17:57:53 +0530 | [diff] [blame] | 161 | /* TWL IDCODE Register value */ |
| 162 | static u32 twl_idcode; |
| 163 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 164 | static unsigned int twl_id; |
| 165 | unsigned int twl_rev(void) |
| 166 | { |
| 167 | return twl_id; |
| 168 | } |
| 169 | EXPORT_SYMBOL(twl_rev); |
| 170 | |
| 171 | /* Structure for each TWL4030/TWL6030 Slave */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 172 | struct twl_client { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 173 | struct i2c_client *client; |
| 174 | u8 address; |
| 175 | |
| 176 | /* max numb of i2c_msg required is for read =2 */ |
| 177 | struct i2c_msg xfer_msg[2]; |
| 178 | |
| 179 | /* To lock access to xfer_msg */ |
| 180 | struct mutex xfer_lock; |
| 181 | }; |
| 182 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 183 | static struct twl_client twl_modules[TWL_NUM_SLAVES]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 184 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 185 | /* mapping the module id to slave id and base address */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 186 | struct twl_mapping { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 187 | unsigned char sid; /* Slave ID */ |
| 188 | unsigned char base; /* base address */ |
| 189 | }; |
G, Manjunath Kondaiah | 2cfcce1 | 2010-09-21 15:31:17 +0530 | [diff] [blame] | 190 | static struct twl_mapping *twl_map; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 191 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 192 | static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 193 | /* |
| 194 | * NOTE: don't change this table without updating the |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 195 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 196 | * so they continue to match the order in this table. |
| 197 | */ |
| 198 | |
| 199 | { 0, TWL4030_BASEADD_USB }, |
| 200 | |
| 201 | { 1, TWL4030_BASEADD_AUDIO_VOICE }, |
| 202 | { 1, TWL4030_BASEADD_GPIO }, |
| 203 | { 1, TWL4030_BASEADD_INTBR }, |
| 204 | { 1, TWL4030_BASEADD_PIH }, |
| 205 | { 1, TWL4030_BASEADD_TEST }, |
| 206 | |
| 207 | { 2, TWL4030_BASEADD_KEYPAD }, |
| 208 | { 2, TWL4030_BASEADD_MADC }, |
| 209 | { 2, TWL4030_BASEADD_INTERRUPTS }, |
| 210 | { 2, TWL4030_BASEADD_LED }, |
| 211 | { 2, TWL4030_BASEADD_MAIN_CHARGE }, |
| 212 | { 2, TWL4030_BASEADD_PRECHARGE }, |
| 213 | { 2, TWL4030_BASEADD_PWM0 }, |
| 214 | { 2, TWL4030_BASEADD_PWM1 }, |
| 215 | { 2, TWL4030_BASEADD_PWMA }, |
| 216 | { 2, TWL4030_BASEADD_PWMB }, |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 217 | { 2, TWL5031_BASEADD_ACCESSORY }, |
| 218 | { 2, TWL5031_BASEADD_INTERRUPTS }, |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 219 | |
| 220 | { 3, TWL4030_BASEADD_BACKUP }, |
| 221 | { 3, TWL4030_BASEADD_INT }, |
| 222 | { 3, TWL4030_BASEADD_PM_MASTER }, |
| 223 | { 3, TWL4030_BASEADD_PM_RECEIVER }, |
| 224 | { 3, TWL4030_BASEADD_RTC }, |
| 225 | { 3, TWL4030_BASEADD_SECURED_REG }, |
| 226 | }; |
| 227 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 228 | static struct twl_mapping twl6030_map[] = { |
| 229 | /* |
| 230 | * NOTE: don't change this table without updating the |
| 231 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
| 232 | * so they continue to match the order in this table. |
| 233 | */ |
| 234 | { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 235 | { SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO }, |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 236 | { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, |
| 237 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 238 | { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, |
| 239 | |
| 240 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 241 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 242 | { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, |
| 243 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 244 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 245 | |
| 246 | { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, |
| 247 | { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, |
| 248 | { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, |
Balaji T K | fa0d976 | 2010-02-19 12:39:38 +0100 | [diff] [blame] | 249 | { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, |
| 250 | { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 251 | |
Balaji T K | fa0d976 | 2010-02-19 12:39:38 +0100 | [diff] [blame] | 252 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
| 253 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 254 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 255 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 256 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 257 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, |
| 258 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, |
| 259 | |
| 260 | { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, |
| 261 | { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 262 | { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 263 | }; |
| 264 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 265 | /*----------------------------------------------------------------------*/ |
| 266 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 267 | /* Exported Functions */ |
| 268 | |
| 269 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 270 | * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 271 | * @mod_no: module number |
| 272 | * @value: an array of num_bytes+1 containing data to write |
| 273 | * @reg: register address (just offset will do) |
| 274 | * @num_bytes: number of bytes to transfer |
| 275 | * |
| 276 | * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and |
| 277 | * valid data starts at Offset 1. |
| 278 | * |
| 279 | * Returns the result of operation - 0 is success |
| 280 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 281 | int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 282 | { |
| 283 | int ret; |
| 284 | int sid; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 285 | struct twl_client *twl; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 286 | struct i2c_msg *msg; |
| 287 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 288 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 289 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
| 290 | return -EPERM; |
| 291 | } |
Ilya Yanok | 8653be1 | 2011-08-01 23:00:28 +0200 | [diff] [blame] | 292 | if (unlikely(!inuse)) { |
| 293 | pr_err("%s: not initialized\n", DRIVER_NAME); |
| 294 | return -EPERM; |
| 295 | } |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 296 | sid = twl_map[mod_no].sid; |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 297 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
| 298 | pr_err("%s: module %d is not part of the pmic\n", |
| 299 | DRIVER_NAME, mod_no); |
| 300 | return -EINVAL; |
| 301 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 302 | twl = &twl_modules[sid]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 303 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 304 | mutex_lock(&twl->xfer_lock); |
| 305 | /* |
| 306 | * [MSG1]: fill the register address data |
| 307 | * fill the data Tx buffer |
| 308 | */ |
| 309 | msg = &twl->xfer_msg[0]; |
| 310 | msg->addr = twl->address; |
| 311 | msg->len = num_bytes + 1; |
| 312 | msg->flags = 0; |
| 313 | msg->buf = value; |
| 314 | /* over write the first byte of buffer with the register address */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 315 | *value = twl_map[mod_no].base + reg; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 316 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); |
| 317 | mutex_unlock(&twl->xfer_lock); |
| 318 | |
Amit Kucheria | 147e084 | 2009-12-11 13:21:45 +0100 | [diff] [blame] | 319 | /* i2c_transfer returns number of messages transferred */ |
| 320 | if (ret != 1) { |
| 321 | pr_err("%s: i2c_write failed to transfer all messages\n", |
| 322 | DRIVER_NAME); |
| 323 | if (ret < 0) |
| 324 | return ret; |
| 325 | else |
| 326 | return -EIO; |
| 327 | } else { |
| 328 | return 0; |
| 329 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 330 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 331 | EXPORT_SYMBOL(twl_i2c_write); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 332 | |
| 333 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 334 | * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 335 | * @mod_no: module number |
| 336 | * @value: an array of num_bytes containing data to be read |
| 337 | * @reg: register address (just offset will do) |
| 338 | * @num_bytes: number of bytes to transfer |
| 339 | * |
| 340 | * Returns result of operation - num_bytes is success else failure. |
| 341 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 342 | int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 343 | { |
| 344 | int ret; |
| 345 | u8 val; |
| 346 | int sid; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 347 | struct twl_client *twl; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 348 | struct i2c_msg *msg; |
| 349 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 350 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 351 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
| 352 | return -EPERM; |
| 353 | } |
Ilya Yanok | 8653be1 | 2011-08-01 23:00:28 +0200 | [diff] [blame] | 354 | if (unlikely(!inuse)) { |
| 355 | pr_err("%s: not initialized\n", DRIVER_NAME); |
| 356 | return -EPERM; |
| 357 | } |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 358 | sid = twl_map[mod_no].sid; |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 359 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
| 360 | pr_err("%s: module %d is not part of the pmic\n", |
| 361 | DRIVER_NAME, mod_no); |
| 362 | return -EINVAL; |
| 363 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 364 | twl = &twl_modules[sid]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 365 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 366 | mutex_lock(&twl->xfer_lock); |
| 367 | /* [MSG1] fill the register address data */ |
| 368 | msg = &twl->xfer_msg[0]; |
| 369 | msg->addr = twl->address; |
| 370 | msg->len = 1; |
| 371 | msg->flags = 0; /* Read the register value */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 372 | val = twl_map[mod_no].base + reg; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 373 | msg->buf = &val; |
| 374 | /* [MSG2] fill the data rx buffer */ |
| 375 | msg = &twl->xfer_msg[1]; |
| 376 | msg->addr = twl->address; |
| 377 | msg->flags = I2C_M_RD; /* Read the register value */ |
| 378 | msg->len = num_bytes; /* only n bytes */ |
| 379 | msg->buf = value; |
| 380 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); |
| 381 | mutex_unlock(&twl->xfer_lock); |
| 382 | |
Amit Kucheria | 147e084 | 2009-12-11 13:21:45 +0100 | [diff] [blame] | 383 | /* i2c_transfer returns number of messages transferred */ |
| 384 | if (ret != 2) { |
| 385 | pr_err("%s: i2c_read failed to transfer all messages\n", |
| 386 | DRIVER_NAME); |
| 387 | if (ret < 0) |
| 388 | return ret; |
| 389 | else |
| 390 | return -EIO; |
| 391 | } else { |
| 392 | return 0; |
| 393 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 394 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 395 | EXPORT_SYMBOL(twl_i2c_read); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 396 | |
| 397 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 398 | * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 399 | * @mod_no: module number |
| 400 | * @value: the value to be written 8 bit |
| 401 | * @reg: register address (just offset will do) |
| 402 | * |
| 403 | * Returns result of operation - 0 is success |
| 404 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 405 | int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 406 | { |
| 407 | |
| 408 | /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ |
| 409 | u8 temp_buffer[2] = { 0 }; |
| 410 | /* offset 1 contains the data */ |
| 411 | temp_buffer[1] = value; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 412 | return twl_i2c_write(mod_no, temp_buffer, reg, 1); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 413 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 414 | EXPORT_SYMBOL(twl_i2c_write_u8); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 415 | |
| 416 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 417 | * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 418 | * @mod_no: module number |
| 419 | * @value: the value read 8 bit |
| 420 | * @reg: register address (just offset will do) |
| 421 | * |
| 422 | * Returns result of operation - 0 is success |
| 423 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 424 | int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 425 | { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 426 | return twl_i2c_read(mod_no, value, reg, 1); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 427 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 428 | EXPORT_SYMBOL(twl_i2c_read_u8); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 429 | |
| 430 | /*----------------------------------------------------------------------*/ |
| 431 | |
Lesly A M | ca972d1 | 2011-04-14 17:57:53 +0530 | [diff] [blame] | 432 | /** |
| 433 | * twl_read_idcode_register - API to read the IDCODE register. |
| 434 | * |
| 435 | * Unlocks the IDCODE register and read the 32 bit value. |
| 436 | */ |
| 437 | static int twl_read_idcode_register(void) |
| 438 | { |
| 439 | int err; |
| 440 | |
| 441 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, |
| 442 | REG_UNLOCK_TEST_REG); |
| 443 | if (err) { |
| 444 | pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); |
| 445 | goto fail; |
| 446 | } |
| 447 | |
| 448 | err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), |
| 449 | REG_IDCODE_7_0, 4); |
| 450 | if (err) { |
| 451 | pr_err("TWL4030: unable to read IDCODE -%d\n", err); |
| 452 | goto fail; |
| 453 | } |
| 454 | |
| 455 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); |
| 456 | if (err) |
| 457 | pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); |
| 458 | fail: |
| 459 | return err; |
| 460 | } |
| 461 | |
| 462 | /** |
| 463 | * twl_get_type - API to get TWL Si type. |
| 464 | * |
| 465 | * Api to get the TWL Si type from IDCODE value. |
| 466 | */ |
| 467 | int twl_get_type(void) |
| 468 | { |
| 469 | return TWL_SIL_TYPE(twl_idcode); |
| 470 | } |
| 471 | EXPORT_SYMBOL_GPL(twl_get_type); |
| 472 | |
| 473 | /** |
| 474 | * twl_get_version - API to get TWL Si version. |
| 475 | * |
| 476 | * Api to get the TWL Si version from IDCODE value. |
| 477 | */ |
| 478 | int twl_get_version(void) |
| 479 | { |
| 480 | return TWL_SIL_REV(twl_idcode); |
| 481 | } |
| 482 | EXPORT_SYMBOL_GPL(twl_get_version); |
| 483 | |
Peter Ujfalusi | 2275c54 | 2012-09-10 13:46:22 +0300 | [diff] [blame] | 484 | /** |
| 485 | * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate. |
| 486 | * |
| 487 | * Api to get the TWL HFCLK rate based on BOOT_CFG register. |
| 488 | */ |
| 489 | int twl_get_hfclk_rate(void) |
| 490 | { |
| 491 | u8 ctrl; |
| 492 | int rate; |
| 493 | |
| 494 | twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT); |
| 495 | |
| 496 | switch (ctrl & 0x3) { |
| 497 | case HFCLK_FREQ_19p2_MHZ: |
| 498 | rate = 19200000; |
| 499 | break; |
| 500 | case HFCLK_FREQ_26_MHZ: |
| 501 | rate = 26000000; |
| 502 | break; |
| 503 | case HFCLK_FREQ_38p4_MHZ: |
| 504 | rate = 38400000; |
| 505 | break; |
| 506 | default: |
| 507 | pr_err("TWL4030: HFCLK is not configured\n"); |
| 508 | rate = -EINVAL; |
| 509 | break; |
| 510 | } |
| 511 | |
| 512 | return rate; |
| 513 | } |
| 514 | EXPORT_SYMBOL_GPL(twl_get_hfclk_rate); |
| 515 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 516 | static struct device * |
| 517 | add_numbered_child(unsigned chip, const char *name, int num, |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 518 | void *pdata, unsigned pdata_len, |
| 519 | bool can_wakeup, int irq0, int irq1) |
| 520 | { |
| 521 | struct platform_device *pdev; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 522 | struct twl_client *twl = &twl_modules[chip]; |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 523 | int status; |
| 524 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 525 | pdev = platform_device_alloc(name, num); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 526 | if (!pdev) { |
| 527 | dev_dbg(&twl->client->dev, "can't alloc dev\n"); |
| 528 | status = -ENOMEM; |
| 529 | goto err; |
| 530 | } |
| 531 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 532 | pdev->dev.parent = &twl->client->dev; |
| 533 | |
| 534 | if (pdata) { |
| 535 | status = platform_device_add_data(pdev, pdata, pdata_len); |
| 536 | if (status < 0) { |
| 537 | dev_dbg(&pdev->dev, "can't add platform_data\n"); |
| 538 | goto err; |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | if (irq0) { |
| 543 | struct resource r[2] = { |
| 544 | { .start = irq0, .flags = IORESOURCE_IRQ, }, |
| 545 | { .start = irq1, .flags = IORESOURCE_IRQ, }, |
| 546 | }; |
| 547 | |
| 548 | status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); |
| 549 | if (status < 0) { |
| 550 | dev_dbg(&pdev->dev, "can't add irqs\n"); |
| 551 | goto err; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | status = platform_device_add(pdev); |
NeilBrown | 17ffba6 | 2012-07-07 08:51:03 +1000 | [diff] [blame] | 556 | if (status == 0) |
| 557 | device_init_wakeup(&pdev->dev, can_wakeup); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 558 | |
| 559 | err: |
| 560 | if (status < 0) { |
| 561 | platform_device_put(pdev); |
| 562 | dev_err(&twl->client->dev, "can't add %s dev\n", name); |
| 563 | return ERR_PTR(status); |
| 564 | } |
| 565 | return &pdev->dev; |
| 566 | } |
| 567 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 568 | static inline struct device *add_child(unsigned chip, const char *name, |
| 569 | void *pdata, unsigned pdata_len, |
| 570 | bool can_wakeup, int irq0, int irq1) |
| 571 | { |
| 572 | return add_numbered_child(chip, name, -1, pdata, pdata_len, |
| 573 | can_wakeup, irq0, irq1); |
| 574 | } |
| 575 | |
| 576 | static struct device * |
| 577 | add_regulator_linked(int num, struct regulator_init_data *pdata, |
| 578 | struct regulator_consumer_supply *consumers, |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 579 | unsigned num_consumers, unsigned long features) |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 580 | { |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 581 | unsigned sub_chip_id; |
Tero Kristo | 63bfff4 | 2012-02-16 12:27:52 +0200 | [diff] [blame] | 582 | struct twl_regulator_driver_data drv_data; |
| 583 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 584 | /* regulator framework demands init_data ... */ |
| 585 | if (!pdata) |
| 586 | return NULL; |
| 587 | |
David Brownell | b73eac7 | 2008-12-07 19:10:58 +0100 | [diff] [blame] | 588 | if (consumers) { |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 589 | pdata->consumer_supplies = consumers; |
| 590 | pdata->num_consumer_supplies = num_consumers; |
| 591 | } |
| 592 | |
Tero Kristo | 63bfff4 | 2012-02-16 12:27:52 +0200 | [diff] [blame] | 593 | if (pdata->driver_data) { |
| 594 | /* If we have existing drv_data, just add the flags */ |
| 595 | struct twl_regulator_driver_data *tmp; |
| 596 | tmp = pdata->driver_data; |
| 597 | tmp->features |= features; |
| 598 | } else { |
| 599 | /* add new driver data struct, used only during init */ |
| 600 | drv_data.features = features; |
| 601 | drv_data.set_voltage = NULL; |
| 602 | drv_data.get_voltage = NULL; |
| 603 | drv_data.data = NULL; |
| 604 | pdata->driver_data = &drv_data; |
| 605 | } |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 606 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 607 | /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 608 | sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |
| 609 | return add_numbered_child(sub_chip_id, "twl_reg", num, |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 610 | pdata, sizeof(*pdata), false, 0, 0); |
| 611 | } |
| 612 | |
| 613 | static struct device * |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 614 | add_regulator(int num, struct regulator_init_data *pdata, |
| 615 | unsigned long features) |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 616 | { |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 617 | return add_regulator_linked(num, pdata, NULL, 0, features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 618 | } |
| 619 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 620 | /* |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 621 | * NOTE: We know the first 8 IRQs after pdata->base_irq are |
| 622 | * for the PIH, and the next are for the PWR_INT SIH, since |
| 623 | * that's how twl_init_irq() sets things up. |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 624 | */ |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 625 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 626 | static int |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 627 | add_children(struct twl4030_platform_data *pdata, unsigned irq_base, |
| 628 | unsigned long features) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 629 | { |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 630 | struct device *child; |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 631 | unsigned sub_chip_id; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 632 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 633 | if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 634 | child = add_child(SUB_CHIP_ID1, "twl4030_gpio", |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 635 | pdata->gpio, sizeof(*pdata->gpio), |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 636 | false, irq_base + GPIO_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 637 | if (IS_ERR(child)) |
| 638 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 639 | } |
| 640 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 641 | if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 642 | child = add_child(SUB_CHIP_ID2, "twl4030_keypad", |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 643 | pdata->keypad, sizeof(*pdata->keypad), |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 644 | true, irq_base + KEYPAD_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 645 | if (IS_ERR(child)) |
| 646 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 647 | } |
| 648 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 649 | if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc) { |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 650 | child = add_child(2, "twl4030_madc", |
| 651 | pdata->madc, sizeof(*pdata->madc), |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 652 | true, irq_base + MADC_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 653 | if (IS_ERR(child)) |
| 654 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 655 | } |
| 656 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 657 | if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 658 | /* |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 659 | * REVISIT platform_data here currently might expose the |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 660 | * "msecure" line ... but for now we just expect board |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 661 | * setup to tell the chip "it's always ok to SET_TIME". |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 662 | * Eventually, Linux might become more aware of such |
| 663 | * HW security concerns, and "least privilege". |
| 664 | */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 665 | sub_chip_id = twl_map[TWL_MODULE_RTC].sid; |
| 666 | child = add_child(sub_chip_id, "twl_rtc", |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 667 | NULL, 0, |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 668 | true, irq_base + RTC_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 669 | if (IS_ERR(child)) |
| 670 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 671 | } |
| 672 | |
Thierry Reding | 48a364b | 2012-09-18 10:29:51 +0200 | [diff] [blame] | 673 | if (IS_ENABLED(CONFIG_PWM_TWL6030) && twl_class_is_6030()) { |
| 674 | child = add_child(TWL6030_MODULE_ID1, "twl6030-pwm", NULL, 0, |
| 675 | false, 0, 0); |
| 676 | if (IS_ERR(child)) |
| 677 | return PTR_ERR(child); |
| 678 | } |
| 679 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 680 | if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb && |
| 681 | twl_class_is_4030()) { |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 682 | |
| 683 | static struct regulator_consumer_supply usb1v5 = { |
| 684 | .supply = "usb1v5", |
| 685 | }; |
| 686 | static struct regulator_consumer_supply usb1v8 = { |
| 687 | .supply = "usb1v8", |
| 688 | }; |
NeilBrown | ab37813 | 2012-05-09 07:40:40 +1000 | [diff] [blame] | 689 | static struct regulator_consumer_supply usb3v1[] = { |
| 690 | { .supply = "usb3v1" }, |
| 691 | { .supply = "bci3v1" }, |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 692 | }; |
| 693 | |
| 694 | /* First add the regulators so that they can be used by transceiver */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 695 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 696 | /* this is a template that gets copied */ |
| 697 | struct regulator_init_data usb_fixed = { |
| 698 | .constraints.valid_modes_mask = |
| 699 | REGULATOR_MODE_NORMAL |
| 700 | | REGULATOR_MODE_STANDBY, |
| 701 | .constraints.valid_ops_mask = |
| 702 | REGULATOR_CHANGE_MODE |
| 703 | | REGULATOR_CHANGE_STATUS, |
| 704 | }; |
| 705 | |
| 706 | child = add_regulator_linked(TWL4030_REG_VUSB1V5, |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 707 | &usb_fixed, &usb1v5, 1, |
| 708 | features); |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 709 | if (IS_ERR(child)) |
| 710 | return PTR_ERR(child); |
| 711 | |
| 712 | child = add_regulator_linked(TWL4030_REG_VUSB1V8, |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 713 | &usb_fixed, &usb1v8, 1, |
| 714 | features); |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 715 | if (IS_ERR(child)) |
| 716 | return PTR_ERR(child); |
| 717 | |
| 718 | child = add_regulator_linked(TWL4030_REG_VUSB3V1, |
NeilBrown | ab37813 | 2012-05-09 07:40:40 +1000 | [diff] [blame] | 719 | &usb_fixed, usb3v1, 2, |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 720 | features); |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 721 | if (IS_ERR(child)) |
| 722 | return PTR_ERR(child); |
| 723 | |
| 724 | } |
| 725 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 726 | child = add_child(0, "twl4030_usb", |
| 727 | pdata->usb, sizeof(*pdata->usb), |
| 728 | true, |
| 729 | /* irq0 = USB_PRES, irq1 = USB */ |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 730 | irq_base + USB_PRES_INTR_OFFSET, |
| 731 | irq_base + USB_INTR_OFFSET); |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 732 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 733 | if (IS_ERR(child)) |
| 734 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 735 | |
| 736 | /* we need to connect regulators to this transceiver */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 737 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) { |
Mark Brown | 1b65fa8 | 2012-02-03 11:02:58 +0000 | [diff] [blame] | 738 | usb1v5.dev_name = dev_name(child); |
| 739 | usb1v8.dev_name = dev_name(child); |
NeilBrown | ab37813 | 2012-05-09 07:40:40 +1000 | [diff] [blame] | 740 | usb3v1[0].dev_name = dev_name(child); |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 741 | } |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 742 | } |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 743 | if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb && |
| 744 | twl_class_is_6030()) { |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 745 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 746 | static struct regulator_consumer_supply usb3v3; |
| 747 | int regulator; |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 748 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 749 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 750 | /* this is a template that gets copied */ |
| 751 | struct regulator_init_data usb_fixed = { |
| 752 | .constraints.valid_modes_mask = |
| 753 | REGULATOR_MODE_NORMAL |
| 754 | | REGULATOR_MODE_STANDBY, |
| 755 | .constraints.valid_ops_mask = |
| 756 | REGULATOR_CHANGE_MODE |
| 757 | | REGULATOR_CHANGE_STATUS, |
| 758 | }; |
| 759 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 760 | if (features & TWL6025_SUBCLASS) { |
| 761 | usb3v3.supply = "ldousb"; |
| 762 | regulator = TWL6025_REG_LDOUSB; |
| 763 | } else { |
| 764 | usb3v3.supply = "vusb"; |
| 765 | regulator = TWL6030_REG_VUSB; |
| 766 | } |
| 767 | child = add_regulator_linked(regulator, &usb_fixed, |
| 768 | &usb3v3, 1, |
| 769 | features); |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 770 | if (IS_ERR(child)) |
| 771 | return PTR_ERR(child); |
| 772 | } |
| 773 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 774 | pdata->usb->features = features; |
| 775 | |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 776 | child = add_child(0, "twl6030_usb", |
| 777 | pdata->usb, sizeof(*pdata->usb), |
| 778 | true, |
| 779 | /* irq1 = VBUS_PRES, irq0 = USB ID */ |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 780 | irq_base + USBOTG_INTR_OFFSET, |
| 781 | irq_base + USB_PRES_INTR_OFFSET); |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 782 | |
| 783 | if (IS_ERR(child)) |
| 784 | return PTR_ERR(child); |
| 785 | /* we need to connect regulators to this transceiver */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 786 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) |
Mark Brown | 1b65fa8 | 2012-02-03 11:02:58 +0000 | [diff] [blame] | 787 | usb3v3.dev_name = dev_name(child); |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 788 | } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && |
| 789 | twl_class_is_6030()) { |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 790 | if (features & TWL6025_SUBCLASS) |
| 791 | child = add_regulator(TWL6025_REG_LDOUSB, |
| 792 | pdata->ldousb, features); |
| 793 | else |
| 794 | child = add_regulator(TWL6030_REG_VUSB, |
| 795 | pdata->vusb, features); |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 796 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 797 | if (IS_ERR(child)) |
| 798 | return PTR_ERR(child); |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame] | 799 | } |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 800 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 801 | if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { |
Timo Kokkonen | 80e45b1 | 2009-03-27 16:42:17 +0200 | [diff] [blame] | 802 | child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); |
| 803 | if (IS_ERR(child)) |
| 804 | return PTR_ERR(child); |
| 805 | } |
| 806 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 807 | if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { |
Felipe Balbi | 9c3664d | 2009-08-03 18:16:38 +0200 | [diff] [blame] | 808 | child = add_child(1, "twl4030_pwrbutton", |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 809 | NULL, 0, true, irq_base + 8 + 0, 0); |
Felipe Balbi | 9c3664d | 2009-08-03 18:16:38 +0200 | [diff] [blame] | 810 | if (IS_ERR(child)) |
| 811 | return PTR_ERR(child); |
| 812 | } |
| 813 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 814 | if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && |
| 815 | twl_class_is_4030()) { |
Misael Lopez Cruz | d62abe5 | 2010-02-23 18:10:19 -0600 | [diff] [blame] | 816 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 817 | child = add_child(sub_chip_id, "twl4030-audio", |
Peter Ujfalusi | 4ae6df5 | 2011-05-31 15:21:13 +0300 | [diff] [blame] | 818 | pdata->audio, sizeof(*pdata->audio), |
Misael Lopez Cruz | d62abe5 | 2010-02-23 18:10:19 -0600 | [diff] [blame] | 819 | false, 0, 0); |
| 820 | if (IS_ERR(child)) |
| 821 | return PTR_ERR(child); |
| 822 | } |
| 823 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 824 | /* twl4030 regulators */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 825 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) { |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 826 | child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, |
| 827 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 828 | if (IS_ERR(child)) |
| 829 | return PTR_ERR(child); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 830 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 831 | child = add_regulator(TWL4030_REG_VIO, pdata->vio, |
| 832 | features); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 833 | if (IS_ERR(child)) |
| 834 | return PTR_ERR(child); |
| 835 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 836 | child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, |
| 837 | features); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 838 | if (IS_ERR(child)) |
| 839 | return PTR_ERR(child); |
| 840 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 841 | child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, |
| 842 | features); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 843 | if (IS_ERR(child)) |
| 844 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 845 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 846 | child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, |
| 847 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 848 | if (IS_ERR(child)) |
| 849 | return PTR_ERR(child); |
| 850 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 851 | child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, |
| 852 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 853 | if (IS_ERR(child)) |
| 854 | return PTR_ERR(child); |
| 855 | |
| 856 | child = add_regulator((features & TWL4030_VAUX2) |
| 857 | ? TWL4030_REG_VAUX2_4030 |
| 858 | : TWL4030_REG_VAUX2, |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 859 | pdata->vaux2, features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 860 | if (IS_ERR(child)) |
| 861 | return PTR_ERR(child); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 862 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 863 | child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, |
| 864 | features); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 865 | if (IS_ERR(child)) |
| 866 | return PTR_ERR(child); |
| 867 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 868 | child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, |
| 869 | features); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 870 | if (IS_ERR(child)) |
| 871 | return PTR_ERR(child); |
| 872 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 873 | child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, |
| 874 | features); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 875 | if (IS_ERR(child)) |
| 876 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 877 | } |
| 878 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 879 | /* maybe add LDOs that are omitted on cost-reduced parts */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 880 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET) |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 881 | && twl_class_is_4030()) { |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 882 | child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, |
| 883 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 884 | if (IS_ERR(child)) |
| 885 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 886 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 887 | child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, |
| 888 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 889 | if (IS_ERR(child)) |
| 890 | return PTR_ERR(child); |
| 891 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 892 | child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, |
| 893 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 894 | if (IS_ERR(child)) |
| 895 | return PTR_ERR(child); |
| 896 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 897 | child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, |
| 898 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 899 | if (IS_ERR(child)) |
| 900 | return PTR_ERR(child); |
| 901 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 902 | child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, |
| 903 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 904 | if (IS_ERR(child)) |
| 905 | return PTR_ERR(child); |
| 906 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 907 | child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, |
| 908 | features); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 909 | if (IS_ERR(child)) |
| 910 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 911 | } |
| 912 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 913 | /* twl6030 regulators */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 914 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 915 | !(features & TWL6025_SUBCLASS)) { |
Tero Kristo | 34a3844 | 2012-02-28 15:09:10 +0530 | [diff] [blame] | 916 | child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, |
| 917 | features); |
| 918 | if (IS_ERR(child)) |
| 919 | return PTR_ERR(child); |
| 920 | |
| 921 | child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, |
| 922 | features); |
| 923 | if (IS_ERR(child)) |
| 924 | return PTR_ERR(child); |
| 925 | |
| 926 | child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, |
| 927 | features); |
| 928 | if (IS_ERR(child)) |
| 929 | return PTR_ERR(child); |
| 930 | |
Peter Ujfalusi | 46eda3e | 2012-02-28 15:09:13 +0530 | [diff] [blame] | 931 | child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, |
| 932 | features); |
| 933 | if (IS_ERR(child)) |
| 934 | return PTR_ERR(child); |
| 935 | |
| 936 | child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, |
| 937 | features); |
| 938 | if (IS_ERR(child)) |
| 939 | return PTR_ERR(child); |
| 940 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 941 | child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, |
| 942 | features); |
| 943 | if (IS_ERR(child)) |
| 944 | return PTR_ERR(child); |
| 945 | |
| 946 | child = add_regulator(TWL6030_REG_VPP, pdata->vpp, |
| 947 | features); |
| 948 | if (IS_ERR(child)) |
| 949 | return PTR_ERR(child); |
| 950 | |
| 951 | child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, |
| 952 | features); |
| 953 | if (IS_ERR(child)) |
| 954 | return PTR_ERR(child); |
| 955 | |
| 956 | child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, |
| 957 | features); |
| 958 | if (IS_ERR(child)) |
| 959 | return PTR_ERR(child); |
| 960 | |
| 961 | child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, |
| 962 | features); |
| 963 | if (IS_ERR(child)) |
| 964 | return PTR_ERR(child); |
| 965 | |
| 966 | child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, |
| 967 | features); |
| 968 | if (IS_ERR(child)) |
| 969 | return PTR_ERR(child); |
| 970 | |
| 971 | child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, |
| 972 | features); |
| 973 | if (IS_ERR(child)) |
| 974 | return PTR_ERR(child); |
| 975 | |
| 976 | child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, |
| 977 | features); |
| 978 | if (IS_ERR(child)) |
| 979 | return PTR_ERR(child); |
| 980 | |
| 981 | child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, |
| 982 | features); |
| 983 | if (IS_ERR(child)) |
| 984 | return PTR_ERR(child); |
| 985 | } |
| 986 | |
| 987 | /* 6030 and 6025 share this regulator */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 988 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) { |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 989 | child = add_regulator(TWL6030_REG_VANA, pdata->vana, |
| 990 | features); |
| 991 | if (IS_ERR(child)) |
| 992 | return PTR_ERR(child); |
| 993 | } |
| 994 | |
| 995 | /* twl6025 regulators */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 996 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 997 | (features & TWL6025_SUBCLASS)) { |
| 998 | child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, |
| 999 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1000 | if (IS_ERR(child)) |
| 1001 | return PTR_ERR(child); |
| 1002 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1003 | child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, |
| 1004 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1005 | if (IS_ERR(child)) |
| 1006 | return PTR_ERR(child); |
| 1007 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1008 | child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, |
| 1009 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1010 | if (IS_ERR(child)) |
| 1011 | return PTR_ERR(child); |
| 1012 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1013 | child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, |
| 1014 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1015 | if (IS_ERR(child)) |
| 1016 | return PTR_ERR(child); |
| 1017 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1018 | child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, |
| 1019 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1020 | if (IS_ERR(child)) |
| 1021 | return PTR_ERR(child); |
| 1022 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1023 | child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, |
| 1024 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1025 | if (IS_ERR(child)) |
| 1026 | return PTR_ERR(child); |
| 1027 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1028 | child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, |
| 1029 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1030 | if (IS_ERR(child)) |
| 1031 | return PTR_ERR(child); |
| 1032 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1033 | child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, |
| 1034 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1035 | if (IS_ERR(child)) |
| 1036 | return PTR_ERR(child); |
| 1037 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1038 | child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, |
| 1039 | features); |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1040 | if (IS_ERR(child)) |
| 1041 | return PTR_ERR(child); |
Balaji T K | 8e6de4a | 2011-02-10 18:44:50 +0530 | [diff] [blame] | 1042 | |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1043 | child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, |
| 1044 | features); |
Balaji T K | 8e6de4a | 2011-02-10 18:44:50 +0530 | [diff] [blame] | 1045 | if (IS_ERR(child)) |
| 1046 | return PTR_ERR(child); |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1047 | |
| 1048 | child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, |
| 1049 | features); |
| 1050 | if (IS_ERR(child)) |
| 1051 | return PTR_ERR(child); |
| 1052 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 1053 | } |
| 1054 | |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 1055 | if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && |
Grazvydas Ignotas | 11c39c4 | 2010-10-01 13:17:50 +0300 | [diff] [blame] | 1056 | !(features & (TPS_SUBSET | TWL5031))) { |
| 1057 | child = add_child(3, "twl4030_bci", |
| 1058 | pdata->bci, sizeof(*pdata->bci), false, |
| 1059 | /* irq0 = CHG_PRES, irq1 = BCI */ |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 1060 | irq_base + BCI_PRES_INTR_OFFSET, |
| 1061 | irq_base + BCI_INTR_OFFSET); |
Grazvydas Ignotas | 11c39c4 | 2010-10-01 13:17:50 +0300 | [diff] [blame] | 1062 | if (IS_ERR(child)) |
| 1063 | return PTR_ERR(child); |
| 1064 | } |
| 1065 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 1066 | return 0; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1067 | } |
| 1068 | |
| 1069 | /*----------------------------------------------------------------------*/ |
| 1070 | |
| 1071 | /* |
| 1072 | * These three functions initialize the on-chip clock framework, |
| 1073 | * letting it generate the right frequencies for USB, MADC, and |
| 1074 | * other purposes. |
| 1075 | */ |
| 1076 | static inline int __init protect_pm_master(void) |
| 1077 | { |
| 1078 | int e = 0; |
| 1079 | |
Felipe Balbi | 49e6f87 | 2010-08-18 09:19:35 +0300 | [diff] [blame] | 1080 | e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, |
| 1081 | TWL4030_PM_MASTER_PROTECT_KEY); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1082 | return e; |
| 1083 | } |
| 1084 | |
| 1085 | static inline int __init unprotect_pm_master(void) |
| 1086 | { |
| 1087 | int e = 0; |
| 1088 | |
Felipe Balbi | 49e6f87 | 2010-08-18 09:19:35 +0300 | [diff] [blame] | 1089 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
| 1090 | TWL4030_PM_MASTER_KEY_CFG1, |
| 1091 | TWL4030_PM_MASTER_PROTECT_KEY); |
| 1092 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
| 1093 | TWL4030_PM_MASTER_KEY_CFG2, |
| 1094 | TWL4030_PM_MASTER_PROTECT_KEY); |
| 1095 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1096 | return e; |
| 1097 | } |
| 1098 | |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 1099 | static void clocks_init(struct device *dev, |
| 1100 | struct twl4030_clock_init_data *clock) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1101 | { |
| 1102 | int e = 0; |
| 1103 | struct clk *osc; |
| 1104 | u32 rate; |
| 1105 | u8 ctrl = HFCLK_FREQ_26_MHZ; |
| 1106 | |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1107 | osc = clk_get(dev, "fck"); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1108 | if (IS_ERR(osc)) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1109 | printk(KERN_WARNING "Skipping twl internal clock init and " |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1110 | "using bootloader value (unknown osc rate)\n"); |
| 1111 | return; |
| 1112 | } |
| 1113 | |
| 1114 | rate = clk_get_rate(osc); |
| 1115 | clk_put(osc); |
| 1116 | |
| 1117 | switch (rate) { |
| 1118 | case 19200000: |
| 1119 | ctrl = HFCLK_FREQ_19p2_MHZ; |
| 1120 | break; |
| 1121 | case 26000000: |
| 1122 | ctrl = HFCLK_FREQ_26_MHZ; |
| 1123 | break; |
| 1124 | case 38400000: |
| 1125 | ctrl = HFCLK_FREQ_38p4_MHZ; |
| 1126 | break; |
| 1127 | } |
| 1128 | |
| 1129 | ctrl |= HIGH_PERF_SQ; |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 1130 | if (clock && clock->ck32k_lowpwr_enable) |
| 1131 | ctrl |= CK32K_LOWPWR_EN; |
| 1132 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1133 | e |= unprotect_pm_master(); |
| 1134 | /* effect->MADC+USB ck en */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1135 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1136 | e |= protect_pm_master(); |
| 1137 | |
| 1138 | if (e < 0) |
| 1139 | pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); |
| 1140 | } |
| 1141 | |
| 1142 | /*----------------------------------------------------------------------*/ |
| 1143 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1144 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1145 | static int twl_remove(struct i2c_client *client) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1146 | { |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1147 | unsigned i, num_slaves; |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 1148 | int status; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1149 | |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1150 | if (twl_class_is_4030()) { |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1151 | status = twl4030_exit_irq(); |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1152 | num_slaves = TWL_NUM_SLAVES; |
| 1153 | } else { |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1154 | status = twl6030_exit_irq(); |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1155 | num_slaves = TWL_NUM_SLAVES - 1; |
| 1156 | } |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1157 | |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 1158 | if (status < 0) |
| 1159 | return status; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1160 | |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1161 | for (i = 0; i < num_slaves; i++) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1162 | struct twl_client *twl = &twl_modules[i]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1163 | |
| 1164 | if (twl->client && twl->client != client) |
| 1165 | i2c_unregister_device(twl->client); |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1166 | twl_modules[i].client = NULL; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1167 | } |
| 1168 | inuse = false; |
| 1169 | return 0; |
| 1170 | } |
| 1171 | |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1172 | /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ |
Bryan Wu | 5b9cecd | 2010-12-08 10:42:04 +0800 | [diff] [blame] | 1173 | static int __devinit |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1174 | twl_probe(struct i2c_client *client, const struct i2c_device_id *id) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1175 | { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1176 | struct twl4030_platform_data *pdata = client->dev.platform_data; |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 1177 | struct device_node *node = client->dev.of_node; |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1178 | struct platform_device *pdev; |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1179 | int irq_base = 0; |
| 1180 | int status; |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1181 | unsigned i, num_slaves; |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 1182 | |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1183 | pdev = platform_device_alloc(DRIVER_NAME, -1); |
| 1184 | if (!pdev) { |
| 1185 | dev_err(&client->dev, "can't alloc pdev\n"); |
| 1186 | return -ENOMEM; |
| 1187 | } |
| 1188 | |
| 1189 | status = platform_device_add(pdev); |
| 1190 | if (status) { |
| 1191 | platform_device_put(pdev); |
| 1192 | return status; |
| 1193 | } |
| 1194 | |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 1195 | if (node && !pdata) { |
| 1196 | /* |
| 1197 | * XXX: Temporary pdata until the information is correctly |
| 1198 | * retrieved by every TWL modules from DT. |
| 1199 | */ |
| 1200 | pdata = devm_kzalloc(&client->dev, |
| 1201 | sizeof(struct twl4030_platform_data), |
| 1202 | GFP_KERNEL); |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1203 | if (!pdata) { |
| 1204 | status = -ENOMEM; |
| 1205 | goto free; |
| 1206 | } |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 1207 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1208 | |
| 1209 | if (!pdata) { |
| 1210 | dev_dbg(&client->dev, "no platform data?\n"); |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1211 | status = -EINVAL; |
| 1212 | goto free; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1213 | } |
| 1214 | |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1215 | platform_set_drvdata(pdev, pdata); |
| 1216 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1217 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { |
| 1218 | dev_dbg(&client->dev, "can't talk I2C?\n"); |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1219 | status = -EIO; |
| 1220 | goto free; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1221 | } |
| 1222 | |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 1223 | if (inuse) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1224 | dev_dbg(&client->dev, "driver is already in use\n"); |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1225 | status = -EBUSY; |
| 1226 | goto free; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1227 | } |
| 1228 | |
Peter Ujfalusi | 364cedb | 2012-01-04 14:58:33 +0200 | [diff] [blame] | 1229 | if ((id->driver_data) & TWL6030_CLASS) { |
| 1230 | twl_id = TWL6030_CLASS_ID; |
| 1231 | twl_map = &twl6030_map[0]; |
| 1232 | num_slaves = TWL_NUM_SLAVES - 1; |
| 1233 | } else { |
| 1234 | twl_id = TWL4030_CLASS_ID; |
| 1235 | twl_map = &twl4030_map[0]; |
| 1236 | num_slaves = TWL_NUM_SLAVES; |
| 1237 | } |
| 1238 | |
| 1239 | for (i = 0; i < num_slaves; i++) { |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1240 | struct twl_client *twl = &twl_modules[i]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1241 | |
| 1242 | twl->address = client->addr + i; |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1243 | if (i == 0) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1244 | twl->client = client; |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1245 | } else { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1246 | twl->client = i2c_new_dummy(client->adapter, |
| 1247 | twl->address); |
| 1248 | if (!twl->client) { |
Ilkka Koskinen | a864343 | 2009-10-20 16:22:52 +0300 | [diff] [blame] | 1249 | dev_err(&client->dev, |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1250 | "can't attach client %d\n", i); |
| 1251 | status = -ENOMEM; |
| 1252 | goto fail; |
| 1253 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1254 | } |
| 1255 | mutex_init(&twl->xfer_lock); |
| 1256 | } |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1257 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1258 | inuse = true; |
| 1259 | |
| 1260 | /* setup clock framework */ |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1261 | clocks_init(&pdev->dev, pdata->clock); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1262 | |
Lesly A M | ca972d1 | 2011-04-14 17:57:53 +0530 | [diff] [blame] | 1263 | /* read TWL IDCODE Register */ |
| 1264 | if (twl_id == TWL4030_CLASS_ID) { |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1265 | status = twl_read_idcode_register(); |
| 1266 | WARN(status < 0, "Error: reading twl_idcode register value\n"); |
Lesly A M | ca972d1 | 2011-04-14 17:57:53 +0530 | [diff] [blame] | 1267 | } |
| 1268 | |
Amit Kucheria | ebf0bd3 | 2009-08-31 18:32:18 +0200 | [diff] [blame] | 1269 | /* load power event scripts */ |
Thierry Reding | f78959c | 2012-09-18 10:29:50 +0200 | [diff] [blame] | 1270 | if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power) |
Amit Kucheria | ebf0bd3 | 2009-08-31 18:32:18 +0200 | [diff] [blame] | 1271 | twl4030_power_init(pdata->power); |
| 1272 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1273 | /* Maybe init the T2 Interrupt subsystem */ |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 1274 | if (client->irq) { |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1275 | if (twl_class_is_4030()) { |
| 1276 | twl4030_init_chip_irq(id->name); |
Benoit Cousson | 78518ff | 2012-02-29 19:40:31 +0100 | [diff] [blame] | 1277 | irq_base = twl4030_init_irq(&client->dev, client->irq); |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1278 | } else { |
Benoit Cousson | 78518ff | 2012-02-29 19:40:31 +0100 | [diff] [blame] | 1279 | irq_base = twl6030_init_irq(&client->dev, client->irq); |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1280 | } |
| 1281 | |
Benoit Cousson | 78518ff | 2012-02-29 19:40:31 +0100 | [diff] [blame] | 1282 | if (irq_base < 0) { |
| 1283 | status = irq_base; |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 1284 | goto fail; |
Benoit Cousson | 78518ff | 2012-02-29 19:40:31 +0100 | [diff] [blame] | 1285 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1286 | } |
| 1287 | |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1288 | /* |
| 1289 | * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. |
Moiz Sonasath | a29aaf5 | 2010-02-16 18:57:21 -0600 | [diff] [blame] | 1290 | * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, |
| 1291 | * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. |
| 1292 | */ |
Moiz Sonasath | a29aaf5 | 2010-02-16 18:57:21 -0600 | [diff] [blame] | 1293 | if (twl_class_is_4030()) { |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1294 | u8 temp; |
| 1295 | |
Moiz Sonasath | a29aaf5 | 2010-02-16 18:57:21 -0600 | [diff] [blame] | 1296 | twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); |
| 1297 | temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1298 | I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); |
Moiz Sonasath | a29aaf5 | 2010-02-16 18:57:21 -0600 | [diff] [blame] | 1299 | twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); |
| 1300 | } |
| 1301 | |
Grant Likely | 964dba2 | 2012-02-24 14:58:34 -0700 | [diff] [blame] | 1302 | status = -ENODEV; |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 1303 | if (node) |
| 1304 | status = of_platform_populate(node, NULL, NULL, &client->dev); |
Grant Likely | 964dba2 | 2012-02-24 14:58:34 -0700 | [diff] [blame] | 1305 | if (status) |
Felipe Balbi | 9e17862 | 2012-02-22 14:32:16 +0200 | [diff] [blame] | 1306 | status = add_children(pdata, irq_base, id->driver_data); |
Benoit Cousson | aeb5032 | 2011-08-29 16:20:23 +0200 | [diff] [blame] | 1307 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1308 | fail: |
| 1309 | if (status < 0) |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1310 | twl_remove(client); |
Tony Lindgren | defa6be | 2012-09-17 16:26:10 -0700 | [diff] [blame] | 1311 | free: |
| 1312 | if (status < 0) |
| 1313 | platform_device_unregister(pdev); |
Benoit Cousson | ec1a07b | 2012-03-02 11:11:26 +0100 | [diff] [blame] | 1314 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1315 | return status; |
| 1316 | } |
| 1317 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1318 | static const struct i2c_device_id twl_ids[] = { |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 1319 | { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ |
| 1320 | { "twl5030", 0 }, /* T2 updated */ |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 1321 | { "twl5031", TWL5031 }, /* TWL5030 updated */ |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 1322 | { "tps65950", 0 }, /* catalog version of twl5030 */ |
| 1323 | { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ |
| 1324 | { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ |
Oleg Drokin | 59dead5 | 2011-07-01 13:34:13 +0200 | [diff] [blame] | 1325 | { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED |
| 1326 | and vibrator. Charger in USB module*/ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1327 | { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ |
Graeme Gregory | 521d8ec | 2011-05-12 14:27:55 +0100 | [diff] [blame] | 1328 | { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1329 | { /* end of list */ }, |
| 1330 | }; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1331 | MODULE_DEVICE_TABLE(i2c, twl_ids); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1332 | |
| 1333 | /* One Client Driver , 4 Clients */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1334 | static struct i2c_driver twl_driver = { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1335 | .driver.name = DRIVER_NAME, |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1336 | .id_table = twl_ids, |
| 1337 | .probe = twl_probe, |
| 1338 | .remove = twl_remove, |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1339 | }; |
| 1340 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1341 | static int __init twl_init(void) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1342 | { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1343 | return i2c_add_driver(&twl_driver); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1344 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1345 | subsys_initcall(twl_init); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1346 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1347 | static void __exit twl_exit(void) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1348 | { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1349 | i2c_del_driver(&twl_driver); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1350 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1351 | module_exit(twl_exit); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1352 | |
| 1353 | MODULE_AUTHOR("Texas Instruments, Inc."); |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1354 | MODULE_DESCRIPTION("I2C Core interface for TWL"); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1355 | MODULE_LICENSE("GPL"); |