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> |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 33 | #include <linux/platform_device.h> |
| 34 | #include <linux/clk.h> |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 35 | #include <linux/err.h> |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 36 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 37 | #include <linux/regulator/machine.h> |
| 38 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 39 | #include <linux/i2c.h> |
Santosh Shilimkar | b07682b | 2009-12-13 20:05:51 +0100 | [diff] [blame] | 40 | #include <linux/i2c/twl.h> |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 41 | |
Mark Brown | a313d75 | 2009-02-04 21:26:07 +0100 | [diff] [blame] | 42 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 43 | #include <plat/cpu.h> |
Samuel Ortiz | b29c06a | 2009-01-11 01:21:48 +0100 | [diff] [blame] | 44 | #endif |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * The TWL4030 "Triton 2" is one of a family of a multi-function "Power |
| 48 | * Management and System Companion Device" chips originally designed for |
| 49 | * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, |
| 50 | * often at around 3 Mbit/sec, including for interrupt handling. |
| 51 | * |
| 52 | * This driver core provides genirq support for the interrupts emitted, |
| 53 | * by the various modules, and exports register access primitives. |
| 54 | * |
| 55 | * FIXME this driver currently requires use of the first interrupt line |
| 56 | * (and associated registers). |
| 57 | */ |
| 58 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 59 | #define DRIVER_NAME "twl" |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 60 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 61 | #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE) |
| 62 | #define twl_has_keypad() true |
| 63 | #else |
| 64 | #define twl_has_keypad() false |
| 65 | #endif |
| 66 | |
| 67 | #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE) |
| 68 | #define twl_has_gpio() true |
| 69 | #else |
| 70 | #define twl_has_gpio() false |
| 71 | #endif |
| 72 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 73 | #if defined(CONFIG_REGULATOR_TWL4030) \ |
| 74 | || defined(CONFIG_REGULATOR_TWL4030_MODULE) |
| 75 | #define twl_has_regulator() true |
| 76 | #else |
| 77 | #define twl_has_regulator() false |
| 78 | #endif |
| 79 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 80 | #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE) |
| 81 | #define twl_has_madc() true |
| 82 | #else |
| 83 | #define twl_has_madc() false |
| 84 | #endif |
| 85 | |
Amit Kucheria | ebf0bd3 | 2009-08-31 18:32:18 +0200 | [diff] [blame] | 86 | #ifdef CONFIG_TWL4030_POWER |
| 87 | #define twl_has_power() true |
| 88 | #else |
| 89 | #define twl_has_power() false |
| 90 | #endif |
| 91 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 92 | #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE) |
| 93 | #define twl_has_rtc() true |
| 94 | #else |
| 95 | #define twl_has_rtc() false |
| 96 | #endif |
| 97 | |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame^] | 98 | #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\ |
| 99 | defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 100 | #define twl_has_usb() true |
| 101 | #else |
| 102 | #define twl_has_usb() false |
| 103 | #endif |
| 104 | |
Timo Kokkonen | 80e45b1 | 2009-03-27 16:42:17 +0200 | [diff] [blame] | 105 | #if defined(CONFIG_TWL4030_WATCHDOG) || \ |
| 106 | defined(CONFIG_TWL4030_WATCHDOG_MODULE) |
| 107 | #define twl_has_watchdog() true |
| 108 | #else |
| 109 | #define twl_has_watchdog() false |
| 110 | #endif |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 111 | |
Misael Lopez Cruz | d62abe5 | 2010-02-23 18:10:19 -0600 | [diff] [blame] | 112 | #if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\ |
Olaya, Margarita | 6a1c7b7 | 2010-03-17 17:42:29 -0500 | [diff] [blame] | 113 | defined(CONFIG_SND_SOC_TWL6040) || defined(CONFIG_SND_SOC_TWL6040_MODULE) |
Peter Ujfalusi | 0b83dde | 2009-10-22 13:26:45 +0300 | [diff] [blame] | 114 | #define twl_has_codec() true |
| 115 | #else |
| 116 | #define twl_has_codec() false |
| 117 | #endif |
| 118 | |
Grazvydas Ignotas | 11c39c4 | 2010-10-01 13:17:50 +0300 | [diff] [blame] | 119 | #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE) |
| 120 | #define twl_has_bci() true |
| 121 | #else |
| 122 | #define twl_has_bci() false |
| 123 | #endif |
| 124 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 125 | /* Triton Core internal information (BEGIN) */ |
| 126 | |
| 127 | /* Last - for index max*/ |
| 128 | #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG |
| 129 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 130 | #define TWL_NUM_SLAVES 4 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 131 | |
Felipe Balbi | 9c3664d | 2009-08-03 18:16:38 +0200 | [diff] [blame] | 132 | #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \ |
Eduardo Valentin | 14e5c82 | 2010-02-11 13:47:09 +0100 | [diff] [blame] | 133 | || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE) |
Felipe Balbi | 9c3664d | 2009-08-03 18:16:38 +0200 | [diff] [blame] | 134 | #define twl_has_pwrbutton() true |
| 135 | #else |
| 136 | #define twl_has_pwrbutton() false |
| 137 | #endif |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 138 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 139 | #define SUB_CHIP_ID0 0 |
| 140 | #define SUB_CHIP_ID1 1 |
| 141 | #define SUB_CHIP_ID2 2 |
| 142 | #define SUB_CHIP_ID3 3 |
| 143 | |
| 144 | #define TWL_MODULE_LAST TWL4030_MODULE_LAST |
| 145 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 146 | /* Base Address defns for twl4030_map[] */ |
| 147 | |
| 148 | /* subchip/slave 0 - USB ID */ |
| 149 | #define TWL4030_BASEADD_USB 0x0000 |
| 150 | |
| 151 | /* subchip/slave 1 - AUD ID */ |
| 152 | #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 |
| 153 | #define TWL4030_BASEADD_GPIO 0x0098 |
| 154 | #define TWL4030_BASEADD_INTBR 0x0085 |
| 155 | #define TWL4030_BASEADD_PIH 0x0080 |
| 156 | #define TWL4030_BASEADD_TEST 0x004C |
| 157 | |
| 158 | /* subchip/slave 2 - AUX ID */ |
| 159 | #define TWL4030_BASEADD_INTERRUPTS 0x00B9 |
| 160 | #define TWL4030_BASEADD_LED 0x00EE |
| 161 | #define TWL4030_BASEADD_MADC 0x0000 |
| 162 | #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 |
| 163 | #define TWL4030_BASEADD_PRECHARGE 0x00AA |
| 164 | #define TWL4030_BASEADD_PWM0 0x00F8 |
| 165 | #define TWL4030_BASEADD_PWM1 0x00FB |
| 166 | #define TWL4030_BASEADD_PWMA 0x00EF |
| 167 | #define TWL4030_BASEADD_PWMB 0x00F1 |
| 168 | #define TWL4030_BASEADD_KEYPAD 0x00D2 |
| 169 | |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 170 | #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ |
| 171 | #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's |
| 172 | one */ |
| 173 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 174 | /* subchip/slave 3 - POWER ID */ |
| 175 | #define TWL4030_BASEADD_BACKUP 0x0014 |
| 176 | #define TWL4030_BASEADD_INT 0x002E |
| 177 | #define TWL4030_BASEADD_PM_MASTER 0x0036 |
| 178 | #define TWL4030_BASEADD_PM_RECEIVER 0x005B |
| 179 | #define TWL4030_BASEADD_RTC 0x001C |
| 180 | #define TWL4030_BASEADD_SECURED_REG 0x0000 |
| 181 | |
| 182 | /* Triton Core internal information (END) */ |
| 183 | |
| 184 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 185 | /* subchip/slave 0 0x48 - POWER */ |
| 186 | #define TWL6030_BASEADD_RTC 0x0000 |
| 187 | #define TWL6030_BASEADD_MEM 0x0017 |
| 188 | #define TWL6030_BASEADD_PM_MASTER 0x001F |
| 189 | #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ |
| 190 | #define TWL6030_BASEADD_PM_MISC 0x00E2 |
| 191 | #define TWL6030_BASEADD_PM_PUPD 0x00F0 |
| 192 | |
| 193 | /* subchip/slave 1 0x49 - FEATURE */ |
| 194 | #define TWL6030_BASEADD_USB 0x0000 |
| 195 | #define TWL6030_BASEADD_GPADC_CTRL 0x002E |
| 196 | #define TWL6030_BASEADD_AUX 0x0090 |
| 197 | #define TWL6030_BASEADD_PWM 0x00BA |
| 198 | #define TWL6030_BASEADD_GASGAUGE 0x00C0 |
| 199 | #define TWL6030_BASEADD_PIH 0x00D0 |
| 200 | #define TWL6030_BASEADD_CHARGER 0x00E0 |
| 201 | |
| 202 | /* subchip/slave 2 0x4A - DFT */ |
| 203 | #define TWL6030_BASEADD_DIEID 0x00C0 |
| 204 | |
| 205 | /* subchip/slave 3 0x4B - AUDIO */ |
| 206 | #define TWL6030_BASEADD_AUDIO 0x0000 |
| 207 | #define TWL6030_BASEADD_RSV 0x0000 |
Balaji T K | fa0d976 | 2010-02-19 12:39:38 +0100 | [diff] [blame] | 208 | #define TWL6030_BASEADD_ZERO 0x0000 |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 209 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 210 | /* Few power values */ |
| 211 | #define R_CFG_BOOT 0x05 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 212 | |
| 213 | /* some fields in R_CFG_BOOT */ |
| 214 | #define HFCLK_FREQ_19p2_MHZ (1 << 0) |
| 215 | #define HFCLK_FREQ_26_MHZ (2 << 0) |
| 216 | #define HFCLK_FREQ_38p4_MHZ (3 << 0) |
| 217 | #define HIGH_PERF_SQ (1 << 3) |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 218 | #define CK32K_LOWPWR_EN (1 << 7) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 219 | |
| 220 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 221 | /* chip-specific feature flags, for i2c_device_id.driver_data */ |
| 222 | #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */ |
| 223 | #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */ |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 224 | #define TWL5031 BIT(2) /* twl5031 has different registers */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 225 | #define TWL6030_CLASS BIT(3) /* TWL6030 class */ |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 226 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 227 | /*----------------------------------------------------------------------*/ |
| 228 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 229 | /* is driver active, bound to a chip? */ |
| 230 | static bool inuse; |
| 231 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 232 | static unsigned int twl_id; |
| 233 | unsigned int twl_rev(void) |
| 234 | { |
| 235 | return twl_id; |
| 236 | } |
| 237 | EXPORT_SYMBOL(twl_rev); |
| 238 | |
| 239 | /* Structure for each TWL4030/TWL6030 Slave */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 240 | struct twl_client { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 241 | struct i2c_client *client; |
| 242 | u8 address; |
| 243 | |
| 244 | /* max numb of i2c_msg required is for read =2 */ |
| 245 | struct i2c_msg xfer_msg[2]; |
| 246 | |
| 247 | /* To lock access to xfer_msg */ |
| 248 | struct mutex xfer_lock; |
| 249 | }; |
| 250 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 251 | static struct twl_client twl_modules[TWL_NUM_SLAVES]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 252 | |
| 253 | |
| 254 | /* mapping the module id to slave id and base address */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 255 | struct twl_mapping { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 256 | unsigned char sid; /* Slave ID */ |
| 257 | unsigned char base; /* base address */ |
| 258 | }; |
G, Manjunath Kondaiah | 2cfcce1 | 2010-09-21 15:31:17 +0530 | [diff] [blame] | 259 | static struct twl_mapping *twl_map; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 260 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 261 | static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 262 | /* |
| 263 | * NOTE: don't change this table without updating the |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 264 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 265 | * so they continue to match the order in this table. |
| 266 | */ |
| 267 | |
| 268 | { 0, TWL4030_BASEADD_USB }, |
| 269 | |
| 270 | { 1, TWL4030_BASEADD_AUDIO_VOICE }, |
| 271 | { 1, TWL4030_BASEADD_GPIO }, |
| 272 | { 1, TWL4030_BASEADD_INTBR }, |
| 273 | { 1, TWL4030_BASEADD_PIH }, |
| 274 | { 1, TWL4030_BASEADD_TEST }, |
| 275 | |
| 276 | { 2, TWL4030_BASEADD_KEYPAD }, |
| 277 | { 2, TWL4030_BASEADD_MADC }, |
| 278 | { 2, TWL4030_BASEADD_INTERRUPTS }, |
| 279 | { 2, TWL4030_BASEADD_LED }, |
| 280 | { 2, TWL4030_BASEADD_MAIN_CHARGE }, |
| 281 | { 2, TWL4030_BASEADD_PRECHARGE }, |
| 282 | { 2, TWL4030_BASEADD_PWM0 }, |
| 283 | { 2, TWL4030_BASEADD_PWM1 }, |
| 284 | { 2, TWL4030_BASEADD_PWMA }, |
| 285 | { 2, TWL4030_BASEADD_PWMB }, |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 286 | { 2, TWL5031_BASEADD_ACCESSORY }, |
| 287 | { 2, TWL5031_BASEADD_INTERRUPTS }, |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 288 | |
| 289 | { 3, TWL4030_BASEADD_BACKUP }, |
| 290 | { 3, TWL4030_BASEADD_INT }, |
| 291 | { 3, TWL4030_BASEADD_PM_MASTER }, |
| 292 | { 3, TWL4030_BASEADD_PM_RECEIVER }, |
| 293 | { 3, TWL4030_BASEADD_RTC }, |
| 294 | { 3, TWL4030_BASEADD_SECURED_REG }, |
| 295 | }; |
| 296 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 297 | static struct twl_mapping twl6030_map[] = { |
| 298 | /* |
| 299 | * NOTE: don't change this table without updating the |
| 300 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
| 301 | * so they continue to match the order in this table. |
| 302 | */ |
| 303 | { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, |
| 304 | { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO }, |
| 305 | { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, |
| 306 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 307 | { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, |
| 308 | |
| 309 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 310 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 311 | { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, |
| 312 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 313 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 314 | |
| 315 | { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, |
| 316 | { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, |
| 317 | { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, |
Balaji T K | fa0d976 | 2010-02-19 12:39:38 +0100 | [diff] [blame] | 318 | { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, |
| 319 | { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 320 | |
Balaji T K | fa0d976 | 2010-02-19 12:39:38 +0100 | [diff] [blame] | 321 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
| 322 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 323 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 324 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 325 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
| 326 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, |
| 327 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, |
| 328 | |
| 329 | { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, |
| 330 | { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, |
| 331 | }; |
| 332 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 333 | /*----------------------------------------------------------------------*/ |
| 334 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 335 | /* Exported Functions */ |
| 336 | |
| 337 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 338 | * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 339 | * @mod_no: module number |
| 340 | * @value: an array of num_bytes+1 containing data to write |
| 341 | * @reg: register address (just offset will do) |
| 342 | * @num_bytes: number of bytes to transfer |
| 343 | * |
| 344 | * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and |
| 345 | * valid data starts at Offset 1. |
| 346 | * |
| 347 | * Returns the result of operation - 0 is success |
| 348 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 349 | 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] | 350 | { |
| 351 | int ret; |
| 352 | int sid; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 353 | struct twl_client *twl; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 354 | struct i2c_msg *msg; |
| 355 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 356 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 357 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
| 358 | return -EPERM; |
| 359 | } |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 360 | sid = twl_map[mod_no].sid; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 361 | twl = &twl_modules[sid]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 362 | |
| 363 | if (unlikely(!inuse)) { |
| 364 | pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); |
| 365 | return -EPERM; |
| 366 | } |
| 367 | mutex_lock(&twl->xfer_lock); |
| 368 | /* |
| 369 | * [MSG1]: fill the register address data |
| 370 | * fill the data Tx buffer |
| 371 | */ |
| 372 | msg = &twl->xfer_msg[0]; |
| 373 | msg->addr = twl->address; |
| 374 | msg->len = num_bytes + 1; |
| 375 | msg->flags = 0; |
| 376 | msg->buf = value; |
| 377 | /* over write the first byte of buffer with the register address */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 378 | *value = twl_map[mod_no].base + reg; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 379 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); |
| 380 | mutex_unlock(&twl->xfer_lock); |
| 381 | |
Amit Kucheria | 147e084 | 2009-12-11 13:21:45 +0100 | [diff] [blame] | 382 | /* i2c_transfer returns number of messages transferred */ |
| 383 | if (ret != 1) { |
| 384 | pr_err("%s: i2c_write failed to transfer all messages\n", |
| 385 | DRIVER_NAME); |
| 386 | if (ret < 0) |
| 387 | return ret; |
| 388 | else |
| 389 | return -EIO; |
| 390 | } else { |
| 391 | return 0; |
| 392 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 393 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 394 | EXPORT_SYMBOL(twl_i2c_write); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 395 | |
| 396 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 397 | * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 398 | * @mod_no: module number |
| 399 | * @value: an array of num_bytes containing data to be read |
| 400 | * @reg: register address (just offset will do) |
| 401 | * @num_bytes: number of bytes to transfer |
| 402 | * |
| 403 | * Returns result of operation - num_bytes is success else failure. |
| 404 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 405 | 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] | 406 | { |
| 407 | int ret; |
| 408 | u8 val; |
| 409 | int sid; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 410 | struct twl_client *twl; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 411 | struct i2c_msg *msg; |
| 412 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 413 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 414 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
| 415 | return -EPERM; |
| 416 | } |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 417 | sid = twl_map[mod_no].sid; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 418 | twl = &twl_modules[sid]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 419 | |
| 420 | if (unlikely(!inuse)) { |
| 421 | pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); |
| 422 | return -EPERM; |
| 423 | } |
| 424 | mutex_lock(&twl->xfer_lock); |
| 425 | /* [MSG1] fill the register address data */ |
| 426 | msg = &twl->xfer_msg[0]; |
| 427 | msg->addr = twl->address; |
| 428 | msg->len = 1; |
| 429 | msg->flags = 0; /* Read the register value */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 430 | val = twl_map[mod_no].base + reg; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 431 | msg->buf = &val; |
| 432 | /* [MSG2] fill the data rx buffer */ |
| 433 | msg = &twl->xfer_msg[1]; |
| 434 | msg->addr = twl->address; |
| 435 | msg->flags = I2C_M_RD; /* Read the register value */ |
| 436 | msg->len = num_bytes; /* only n bytes */ |
| 437 | msg->buf = value; |
| 438 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); |
| 439 | mutex_unlock(&twl->xfer_lock); |
| 440 | |
Amit Kucheria | 147e084 | 2009-12-11 13:21:45 +0100 | [diff] [blame] | 441 | /* i2c_transfer returns number of messages transferred */ |
| 442 | if (ret != 2) { |
| 443 | pr_err("%s: i2c_read failed to transfer all messages\n", |
| 444 | DRIVER_NAME); |
| 445 | if (ret < 0) |
| 446 | return ret; |
| 447 | else |
| 448 | return -EIO; |
| 449 | } else { |
| 450 | return 0; |
| 451 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 452 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 453 | EXPORT_SYMBOL(twl_i2c_read); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 454 | |
| 455 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 456 | * 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] | 457 | * @mod_no: module number |
| 458 | * @value: the value to be written 8 bit |
| 459 | * @reg: register address (just offset will do) |
| 460 | * |
| 461 | * Returns result of operation - 0 is success |
| 462 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 463 | int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 464 | { |
| 465 | |
| 466 | /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ |
| 467 | u8 temp_buffer[2] = { 0 }; |
| 468 | /* offset 1 contains the data */ |
| 469 | temp_buffer[1] = value; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 470 | return twl_i2c_write(mod_no, temp_buffer, reg, 1); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 471 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 472 | EXPORT_SYMBOL(twl_i2c_write_u8); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 473 | |
| 474 | /** |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 475 | * 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] | 476 | * @mod_no: module number |
| 477 | * @value: the value read 8 bit |
| 478 | * @reg: register address (just offset will do) |
| 479 | * |
| 480 | * Returns result of operation - 0 is success |
| 481 | */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 482 | int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 483 | { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 484 | return twl_i2c_read(mod_no, value, reg, 1); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 485 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 486 | EXPORT_SYMBOL(twl_i2c_read_u8); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 487 | |
| 488 | /*----------------------------------------------------------------------*/ |
| 489 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 490 | static struct device * |
| 491 | add_numbered_child(unsigned chip, const char *name, int num, |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 492 | void *pdata, unsigned pdata_len, |
| 493 | bool can_wakeup, int irq0, int irq1) |
| 494 | { |
| 495 | struct platform_device *pdev; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 496 | struct twl_client *twl = &twl_modules[chip]; |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 497 | int status; |
| 498 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 499 | pdev = platform_device_alloc(name, num); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 500 | if (!pdev) { |
| 501 | dev_dbg(&twl->client->dev, "can't alloc dev\n"); |
| 502 | status = -ENOMEM; |
| 503 | goto err; |
| 504 | } |
| 505 | |
| 506 | device_init_wakeup(&pdev->dev, can_wakeup); |
| 507 | pdev->dev.parent = &twl->client->dev; |
| 508 | |
| 509 | if (pdata) { |
| 510 | status = platform_device_add_data(pdev, pdata, pdata_len); |
| 511 | if (status < 0) { |
| 512 | dev_dbg(&pdev->dev, "can't add platform_data\n"); |
| 513 | goto err; |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | if (irq0) { |
| 518 | struct resource r[2] = { |
| 519 | { .start = irq0, .flags = IORESOURCE_IRQ, }, |
| 520 | { .start = irq1, .flags = IORESOURCE_IRQ, }, |
| 521 | }; |
| 522 | |
| 523 | status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); |
| 524 | if (status < 0) { |
| 525 | dev_dbg(&pdev->dev, "can't add irqs\n"); |
| 526 | goto err; |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | status = platform_device_add(pdev); |
| 531 | |
| 532 | err: |
| 533 | if (status < 0) { |
| 534 | platform_device_put(pdev); |
| 535 | dev_err(&twl->client->dev, "can't add %s dev\n", name); |
| 536 | return ERR_PTR(status); |
| 537 | } |
| 538 | return &pdev->dev; |
| 539 | } |
| 540 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 541 | static inline struct device *add_child(unsigned chip, const char *name, |
| 542 | void *pdata, unsigned pdata_len, |
| 543 | bool can_wakeup, int irq0, int irq1) |
| 544 | { |
| 545 | return add_numbered_child(chip, name, -1, pdata, pdata_len, |
| 546 | can_wakeup, irq0, irq1); |
| 547 | } |
| 548 | |
| 549 | static struct device * |
| 550 | add_regulator_linked(int num, struct regulator_init_data *pdata, |
| 551 | struct regulator_consumer_supply *consumers, |
| 552 | unsigned num_consumers) |
| 553 | { |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 554 | unsigned sub_chip_id; |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 555 | /* regulator framework demands init_data ... */ |
| 556 | if (!pdata) |
| 557 | return NULL; |
| 558 | |
David Brownell | b73eac7 | 2008-12-07 19:10:58 +0100 | [diff] [blame] | 559 | if (consumers) { |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 560 | pdata->consumer_supplies = consumers; |
| 561 | pdata->num_consumer_supplies = num_consumers; |
| 562 | } |
| 563 | |
| 564 | /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 565 | sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |
| 566 | return add_numbered_child(sub_chip_id, "twl_reg", num, |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 567 | pdata, sizeof(*pdata), false, 0, 0); |
| 568 | } |
| 569 | |
| 570 | static struct device * |
| 571 | add_regulator(int num, struct regulator_init_data *pdata) |
| 572 | { |
| 573 | return add_regulator_linked(num, pdata, NULL, 0); |
| 574 | } |
| 575 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 576 | /* |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 577 | * NOTE: We know the first 8 IRQs after pdata->base_irq are |
| 578 | * for the PIH, and the next are for the PWR_INT SIH, since |
| 579 | * that's how twl_init_irq() sets things up. |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 580 | */ |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 581 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 582 | static int |
| 583 | add_children(struct twl4030_platform_data *pdata, unsigned long features) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 584 | { |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 585 | struct device *child; |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 586 | unsigned sub_chip_id; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 587 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 588 | if (twl_has_gpio() && pdata->gpio) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 589 | child = add_child(SUB_CHIP_ID1, "twl4030_gpio", |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 590 | pdata->gpio, sizeof(*pdata->gpio), |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 591 | false, pdata->irq_base + GPIO_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 592 | if (IS_ERR(child)) |
| 593 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | if (twl_has_keypad() && pdata->keypad) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 597 | child = add_child(SUB_CHIP_ID2, "twl4030_keypad", |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 598 | pdata->keypad, sizeof(*pdata->keypad), |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 599 | true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 600 | if (IS_ERR(child)) |
| 601 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 602 | } |
| 603 | |
| 604 | if (twl_has_madc() && pdata->madc) { |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 605 | child = add_child(2, "twl4030_madc", |
| 606 | pdata->madc, sizeof(*pdata->madc), |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 607 | true, pdata->irq_base + MADC_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 608 | if (IS_ERR(child)) |
| 609 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | if (twl_has_rtc()) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 613 | /* |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 614 | * REVISIT platform_data here currently might expose the |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 615 | * "msecure" line ... but for now we just expect board |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 616 | * setup to tell the chip "it's always ok to SET_TIME". |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 617 | * Eventually, Linux might become more aware of such |
| 618 | * HW security concerns, and "least privilege". |
| 619 | */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 620 | sub_chip_id = twl_map[TWL_MODULE_RTC].sid; |
| 621 | child = add_child(sub_chip_id, "twl_rtc", |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 622 | NULL, 0, |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 623 | true, pdata->irq_base + RTC_INTR_OFFSET, 0); |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 624 | if (IS_ERR(child)) |
| 625 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 626 | } |
| 627 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 628 | if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 629 | |
| 630 | static struct regulator_consumer_supply usb1v5 = { |
| 631 | .supply = "usb1v5", |
| 632 | }; |
| 633 | static struct regulator_consumer_supply usb1v8 = { |
| 634 | .supply = "usb1v8", |
| 635 | }; |
| 636 | static struct regulator_consumer_supply usb3v1 = { |
| 637 | .supply = "usb3v1", |
| 638 | }; |
| 639 | |
| 640 | /* First add the regulators so that they can be used by transceiver */ |
| 641 | if (twl_has_regulator()) { |
| 642 | /* this is a template that gets copied */ |
| 643 | struct regulator_init_data usb_fixed = { |
| 644 | .constraints.valid_modes_mask = |
| 645 | REGULATOR_MODE_NORMAL |
| 646 | | REGULATOR_MODE_STANDBY, |
| 647 | .constraints.valid_ops_mask = |
| 648 | REGULATOR_CHANGE_MODE |
| 649 | | REGULATOR_CHANGE_STATUS, |
| 650 | }; |
| 651 | |
| 652 | child = add_regulator_linked(TWL4030_REG_VUSB1V5, |
| 653 | &usb_fixed, &usb1v5, 1); |
| 654 | if (IS_ERR(child)) |
| 655 | return PTR_ERR(child); |
| 656 | |
| 657 | child = add_regulator_linked(TWL4030_REG_VUSB1V8, |
| 658 | &usb_fixed, &usb1v8, 1); |
| 659 | if (IS_ERR(child)) |
| 660 | return PTR_ERR(child); |
| 661 | |
| 662 | child = add_regulator_linked(TWL4030_REG_VUSB3V1, |
| 663 | &usb_fixed, &usb3v1, 1); |
| 664 | if (IS_ERR(child)) |
| 665 | return PTR_ERR(child); |
| 666 | |
| 667 | } |
| 668 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 669 | child = add_child(0, "twl4030_usb", |
| 670 | pdata->usb, sizeof(*pdata->usb), |
| 671 | true, |
| 672 | /* irq0 = USB_PRES, irq1 = USB */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 673 | pdata->irq_base + USB_PRES_INTR_OFFSET, |
| 674 | pdata->irq_base + USB_INTR_OFFSET); |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 675 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 676 | if (IS_ERR(child)) |
| 677 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 678 | |
| 679 | /* we need to connect regulators to this transceiver */ |
Roger Quadros | f8ebdff | 2009-09-30 18:26:37 +0300 | [diff] [blame] | 680 | if (twl_has_regulator() && child) { |
| 681 | usb1v5.dev = child; |
| 682 | usb1v8.dev = child; |
| 683 | usb3v1.dev = child; |
| 684 | } |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 685 | } |
Hema HK | e70357e | 2010-12-10 18:09:52 +0530 | [diff] [blame^] | 686 | if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { |
| 687 | |
| 688 | static struct regulator_consumer_supply usb3v3 = { |
| 689 | .supply = "vusb", |
| 690 | }; |
| 691 | |
| 692 | if (twl_has_regulator()) { |
| 693 | /* this is a template that gets copied */ |
| 694 | struct regulator_init_data usb_fixed = { |
| 695 | .constraints.valid_modes_mask = |
| 696 | REGULATOR_MODE_NORMAL |
| 697 | | REGULATOR_MODE_STANDBY, |
| 698 | .constraints.valid_ops_mask = |
| 699 | REGULATOR_CHANGE_MODE |
| 700 | | REGULATOR_CHANGE_STATUS, |
| 701 | }; |
| 702 | |
| 703 | child = add_regulator_linked(TWL6030_REG_VUSB, |
| 704 | &usb_fixed, &usb3v3, 1); |
| 705 | if (IS_ERR(child)) |
| 706 | return PTR_ERR(child); |
| 707 | } |
| 708 | |
| 709 | child = add_child(0, "twl6030_usb", |
| 710 | pdata->usb, sizeof(*pdata->usb), |
| 711 | true, |
| 712 | /* irq1 = VBUS_PRES, irq0 = USB ID */ |
| 713 | pdata->irq_base + USBOTG_INTR_OFFSET, |
| 714 | pdata->irq_base + USB_PRES_INTR_OFFSET); |
| 715 | |
| 716 | if (IS_ERR(child)) |
| 717 | return PTR_ERR(child); |
| 718 | /* we need to connect regulators to this transceiver */ |
| 719 | if (twl_has_regulator() && child) |
| 720 | usb3v3.dev = child; |
| 721 | |
| 722 | } |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 723 | |
Timo Kokkonen | 80e45b1 | 2009-03-27 16:42:17 +0200 | [diff] [blame] | 724 | if (twl_has_watchdog()) { |
| 725 | child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); |
| 726 | if (IS_ERR(child)) |
| 727 | return PTR_ERR(child); |
| 728 | } |
| 729 | |
Felipe Balbi | 9c3664d | 2009-08-03 18:16:38 +0200 | [diff] [blame] | 730 | if (twl_has_pwrbutton()) { |
| 731 | child = add_child(1, "twl4030_pwrbutton", |
| 732 | NULL, 0, true, pdata->irq_base + 8 + 0, 0); |
| 733 | if (IS_ERR(child)) |
| 734 | return PTR_ERR(child); |
| 735 | } |
| 736 | |
Misael Lopez Cruz | d62abe5 | 2010-02-23 18:10:19 -0600 | [diff] [blame] | 737 | if (twl_has_codec() && pdata->codec && twl_class_is_4030()) { |
| 738 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 739 | child = add_child(sub_chip_id, "twl4030-audio", |
Misael Lopez Cruz | d62abe5 | 2010-02-23 18:10:19 -0600 | [diff] [blame] | 740 | pdata->codec, sizeof(*pdata->codec), |
| 741 | false, 0, 0); |
| 742 | if (IS_ERR(child)) |
| 743 | return PTR_ERR(child); |
| 744 | } |
| 745 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 746 | /* Phoenix codec driver is probed directly atm */ |
Misael Lopez Cruz | d62abe5 | 2010-02-23 18:10:19 -0600 | [diff] [blame] | 747 | if (twl_has_codec() && pdata->codec && twl_class_is_6030()) { |
| 748 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 749 | child = add_child(sub_chip_id, "twl6040-codec", |
Peter Ujfalusi | 0b83dde | 2009-10-22 13:26:45 +0300 | [diff] [blame] | 750 | pdata->codec, sizeof(*pdata->codec), |
| 751 | false, 0, 0); |
| 752 | if (IS_ERR(child)) |
| 753 | return PTR_ERR(child); |
| 754 | } |
| 755 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 756 | /* twl4030 regulators */ |
| 757 | if (twl_has_regulator() && twl_class_is_4030()) { |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 758 | child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1); |
| 759 | if (IS_ERR(child)) |
| 760 | return PTR_ERR(child); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 761 | |
| 762 | child = add_regulator(TWL4030_REG_VIO, pdata->vio); |
| 763 | if (IS_ERR(child)) |
| 764 | return PTR_ERR(child); |
| 765 | |
| 766 | child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1); |
| 767 | if (IS_ERR(child)) |
| 768 | return PTR_ERR(child); |
| 769 | |
| 770 | child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2); |
| 771 | if (IS_ERR(child)) |
| 772 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 773 | |
| 774 | child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1); |
| 775 | if (IS_ERR(child)) |
| 776 | return PTR_ERR(child); |
| 777 | |
| 778 | child = add_regulator(TWL4030_REG_VDAC, pdata->vdac); |
| 779 | if (IS_ERR(child)) |
| 780 | return PTR_ERR(child); |
| 781 | |
| 782 | child = add_regulator((features & TWL4030_VAUX2) |
| 783 | ? TWL4030_REG_VAUX2_4030 |
| 784 | : TWL4030_REG_VAUX2, |
| 785 | pdata->vaux2); |
| 786 | if (IS_ERR(child)) |
| 787 | return PTR_ERR(child); |
Juha Keski-Saari | ab4abe05 | 2009-12-11 11:12:15 +0100 | [diff] [blame] | 788 | |
| 789 | child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1); |
| 790 | if (IS_ERR(child)) |
| 791 | return PTR_ERR(child); |
| 792 | |
| 793 | child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2); |
| 794 | if (IS_ERR(child)) |
| 795 | return PTR_ERR(child); |
| 796 | |
| 797 | child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig); |
| 798 | if (IS_ERR(child)) |
| 799 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 800 | } |
| 801 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 802 | /* maybe add LDOs that are omitted on cost-reduced parts */ |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 803 | if (twl_has_regulator() && !(features & TPS_SUBSET) |
| 804 | && twl_class_is_4030()) { |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 805 | child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2); |
| 806 | if (IS_ERR(child)) |
| 807 | return PTR_ERR(child); |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 808 | |
| 809 | child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2); |
| 810 | if (IS_ERR(child)) |
| 811 | return PTR_ERR(child); |
| 812 | |
| 813 | child = add_regulator(TWL4030_REG_VSIM, pdata->vsim); |
| 814 | if (IS_ERR(child)) |
| 815 | return PTR_ERR(child); |
| 816 | |
| 817 | child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1); |
| 818 | if (IS_ERR(child)) |
| 819 | return PTR_ERR(child); |
| 820 | |
| 821 | child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3); |
| 822 | if (IS_ERR(child)) |
| 823 | return PTR_ERR(child); |
| 824 | |
| 825 | child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4); |
| 826 | if (IS_ERR(child)) |
| 827 | return PTR_ERR(child); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 828 | } |
| 829 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 830 | /* twl6030 regulators */ |
| 831 | if (twl_has_regulator() && twl_class_is_6030()) { |
| 832 | child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc); |
| 833 | if (IS_ERR(child)) |
| 834 | return PTR_ERR(child); |
| 835 | |
| 836 | child = add_regulator(TWL6030_REG_VPP, pdata->vpp); |
| 837 | if (IS_ERR(child)) |
| 838 | return PTR_ERR(child); |
| 839 | |
| 840 | child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim); |
| 841 | if (IS_ERR(child)) |
| 842 | return PTR_ERR(child); |
| 843 | |
| 844 | child = add_regulator(TWL6030_REG_VANA, pdata->vana); |
| 845 | if (IS_ERR(child)) |
| 846 | return PTR_ERR(child); |
| 847 | |
| 848 | child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio); |
| 849 | if (IS_ERR(child)) |
| 850 | return PTR_ERR(child); |
| 851 | |
| 852 | child = add_regulator(TWL6030_REG_VDAC, pdata->vdac); |
| 853 | if (IS_ERR(child)) |
| 854 | return PTR_ERR(child); |
| 855 | |
Rajendra Nayak | 9da6653 | 2009-12-13 22:29:47 +0100 | [diff] [blame] | 856 | child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1); |
| 857 | if (IS_ERR(child)) |
| 858 | return PTR_ERR(child); |
| 859 | |
| 860 | child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2); |
| 861 | if (IS_ERR(child)) |
| 862 | return PTR_ERR(child); |
| 863 | |
| 864 | child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3); |
| 865 | if (IS_ERR(child)) |
| 866 | return PTR_ERR(child); |
| 867 | } |
| 868 | |
Grazvydas Ignotas | 11c39c4 | 2010-10-01 13:17:50 +0300 | [diff] [blame] | 869 | if (twl_has_bci() && pdata->bci && |
| 870 | !(features & (TPS_SUBSET | TWL5031))) { |
| 871 | child = add_child(3, "twl4030_bci", |
| 872 | pdata->bci, sizeof(*pdata->bci), false, |
| 873 | /* irq0 = CHG_PRES, irq1 = BCI */ |
| 874 | pdata->irq_base + BCI_PRES_INTR_OFFSET, |
| 875 | pdata->irq_base + BCI_INTR_OFFSET); |
| 876 | if (IS_ERR(child)) |
| 877 | return PTR_ERR(child); |
| 878 | } |
| 879 | |
David Brownell | 5725d66 | 2008-12-01 00:31:04 +0100 | [diff] [blame] | 880 | return 0; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 881 | } |
| 882 | |
| 883 | /*----------------------------------------------------------------------*/ |
| 884 | |
| 885 | /* |
| 886 | * These three functions initialize the on-chip clock framework, |
| 887 | * letting it generate the right frequencies for USB, MADC, and |
| 888 | * other purposes. |
| 889 | */ |
| 890 | static inline int __init protect_pm_master(void) |
| 891 | { |
| 892 | int e = 0; |
| 893 | |
Felipe Balbi | 49e6f87 | 2010-08-18 09:19:35 +0300 | [diff] [blame] | 894 | e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, |
| 895 | TWL4030_PM_MASTER_PROTECT_KEY); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 896 | return e; |
| 897 | } |
| 898 | |
| 899 | static inline int __init unprotect_pm_master(void) |
| 900 | { |
| 901 | int e = 0; |
| 902 | |
Felipe Balbi | 49e6f87 | 2010-08-18 09:19:35 +0300 | [diff] [blame] | 903 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
| 904 | TWL4030_PM_MASTER_KEY_CFG1, |
| 905 | TWL4030_PM_MASTER_PROTECT_KEY); |
| 906 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
| 907 | TWL4030_PM_MASTER_KEY_CFG2, |
| 908 | TWL4030_PM_MASTER_PROTECT_KEY); |
| 909 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 910 | return e; |
| 911 | } |
| 912 | |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 913 | static void clocks_init(struct device *dev, |
| 914 | struct twl4030_clock_init_data *clock) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 915 | { |
| 916 | int e = 0; |
| 917 | struct clk *osc; |
| 918 | u32 rate; |
| 919 | u8 ctrl = HFCLK_FREQ_26_MHZ; |
| 920 | |
| 921 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) |
| 922 | if (cpu_is_omap2430()) |
Russell King | e6b50c8d | 2009-01-10 10:40:42 +0000 | [diff] [blame] | 923 | osc = clk_get(dev, "osc_ck"); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 924 | else |
Russell King | e6b50c8d | 2009-01-10 10:40:42 +0000 | [diff] [blame] | 925 | osc = clk_get(dev, "osc_sys_ck"); |
Samuel Ortiz | 6354ab5 | 2008-12-07 20:50:25 +0100 | [diff] [blame] | 926 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 927 | if (IS_ERR(osc)) { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 928 | printk(KERN_WARNING "Skipping twl internal clock init and " |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 929 | "using bootloader value (unknown osc rate)\n"); |
| 930 | return; |
| 931 | } |
| 932 | |
| 933 | rate = clk_get_rate(osc); |
| 934 | clk_put(osc); |
| 935 | |
Samuel Ortiz | 6354ab5 | 2008-12-07 20:50:25 +0100 | [diff] [blame] | 936 | #else |
| 937 | /* REVISIT for non-OMAP systems, pass the clock rate from |
| 938 | * board init code, using platform_data. |
| 939 | */ |
| 940 | osc = ERR_PTR(-EIO); |
| 941 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 942 | printk(KERN_WARNING "Skipping twl internal clock init and " |
Samuel Ortiz | 6354ab5 | 2008-12-07 20:50:25 +0100 | [diff] [blame] | 943 | "using bootloader value (unknown osc rate)\n"); |
| 944 | |
| 945 | return; |
| 946 | #endif |
| 947 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 948 | switch (rate) { |
| 949 | case 19200000: |
| 950 | ctrl = HFCLK_FREQ_19p2_MHZ; |
| 951 | break; |
| 952 | case 26000000: |
| 953 | ctrl = HFCLK_FREQ_26_MHZ; |
| 954 | break; |
| 955 | case 38400000: |
| 956 | ctrl = HFCLK_FREQ_38p4_MHZ; |
| 957 | break; |
| 958 | } |
| 959 | |
| 960 | ctrl |= HIGH_PERF_SQ; |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 961 | if (clock && clock->ck32k_lowpwr_enable) |
| 962 | ctrl |= CK32K_LOWPWR_EN; |
| 963 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 964 | e |= unprotect_pm_master(); |
| 965 | /* effect->MADC+USB ck en */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 966 | 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] | 967 | e |= protect_pm_master(); |
| 968 | |
| 969 | if (e < 0) |
| 970 | pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); |
| 971 | } |
| 972 | |
| 973 | /*----------------------------------------------------------------------*/ |
| 974 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 975 | int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); |
| 976 | int twl4030_exit_irq(void); |
| 977 | int twl4030_init_chip_irq(const char *chip); |
| 978 | int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); |
| 979 | int twl6030_exit_irq(void); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 980 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 981 | static int twl_remove(struct i2c_client *client) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 982 | { |
| 983 | unsigned i; |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 984 | int status; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 985 | |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 986 | if (twl_class_is_4030()) |
| 987 | status = twl4030_exit_irq(); |
| 988 | else |
| 989 | status = twl6030_exit_irq(); |
| 990 | |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 991 | if (status < 0) |
| 992 | return status; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 993 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 994 | for (i = 0; i < TWL_NUM_SLAVES; i++) { |
| 995 | struct twl_client *twl = &twl_modules[i]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 996 | |
| 997 | if (twl->client && twl->client != client) |
| 998 | i2c_unregister_device(twl->client); |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 999 | twl_modules[i].client = NULL; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1000 | } |
| 1001 | inuse = false; |
| 1002 | return 0; |
| 1003 | } |
| 1004 | |
| 1005 | /* NOTE: this driver only handles a single twl4030/tps659x0 chip */ |
Daniel J Blueman | b5e102c | 2009-11-25 12:12:59 +0000 | [diff] [blame] | 1006 | static int __init |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1007 | twl_probe(struct i2c_client *client, const struct i2c_device_id *id) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1008 | { |
| 1009 | int status; |
| 1010 | unsigned i; |
| 1011 | struct twl4030_platform_data *pdata = client->dev.platform_data; |
Moiz Sonasath | a29aaf5 | 2010-02-16 18:57:21 -0600 | [diff] [blame] | 1012 | u8 temp; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1013 | |
| 1014 | if (!pdata) { |
| 1015 | dev_dbg(&client->dev, "no platform data?\n"); |
| 1016 | return -EINVAL; |
| 1017 | } |
| 1018 | |
| 1019 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { |
| 1020 | dev_dbg(&client->dev, "can't talk I2C?\n"); |
| 1021 | return -EIO; |
| 1022 | } |
| 1023 | |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 1024 | if (inuse) { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1025 | dev_dbg(&client->dev, "driver is already in use\n"); |
| 1026 | return -EBUSY; |
| 1027 | } |
| 1028 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1029 | for (i = 0; i < TWL_NUM_SLAVES; i++) { |
| 1030 | struct twl_client *twl = &twl_modules[i]; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1031 | |
| 1032 | twl->address = client->addr + i; |
| 1033 | if (i == 0) |
| 1034 | twl->client = client; |
| 1035 | else { |
| 1036 | twl->client = i2c_new_dummy(client->adapter, |
| 1037 | twl->address); |
| 1038 | if (!twl->client) { |
Ilkka Koskinen | a864343 | 2009-10-20 16:22:52 +0300 | [diff] [blame] | 1039 | dev_err(&client->dev, |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1040 | "can't attach client %d\n", i); |
| 1041 | status = -ENOMEM; |
| 1042 | goto fail; |
| 1043 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1044 | } |
| 1045 | mutex_init(&twl->xfer_lock); |
| 1046 | } |
| 1047 | inuse = true; |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1048 | if ((id->driver_data) & TWL6030_CLASS) { |
| 1049 | twl_id = TWL6030_CLASS_ID; |
| 1050 | twl_map = &twl6030_map[0]; |
| 1051 | } else { |
| 1052 | twl_id = TWL4030_CLASS_ID; |
| 1053 | twl_map = &twl4030_map[0]; |
| 1054 | } |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1055 | |
| 1056 | /* setup clock framework */ |
Ilkka Koskinen | 38a6849 | 2009-10-22 14:14:09 +0300 | [diff] [blame] | 1057 | clocks_init(&client->dev, pdata->clock); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1058 | |
Amit Kucheria | ebf0bd3 | 2009-08-31 18:32:18 +0200 | [diff] [blame] | 1059 | /* load power event scripts */ |
| 1060 | if (twl_has_power() && pdata->power) |
| 1061 | twl4030_power_init(pdata->power); |
| 1062 | |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1063 | /* Maybe init the T2 Interrupt subsystem */ |
| 1064 | if (client->irq |
| 1065 | && pdata->irq_base |
| 1066 | && pdata->irq_end > pdata->irq_base) { |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1067 | if (twl_class_is_4030()) { |
| 1068 | twl4030_init_chip_irq(id->name); |
| 1069 | status = twl4030_init_irq(client->irq, pdata->irq_base, |
| 1070 | pdata->irq_end); |
| 1071 | } else { |
| 1072 | status = twl6030_init_irq(client->irq, pdata->irq_base, |
| 1073 | pdata->irq_end); |
| 1074 | } |
| 1075 | |
David Brownell | a30d46c | 2008-10-20 23:46:28 +0200 | [diff] [blame] | 1076 | if (status < 0) |
| 1077 | goto fail; |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1078 | } |
| 1079 | |
Moiz Sonasath | a29aaf5 | 2010-02-16 18:57:21 -0600 | [diff] [blame] | 1080 | /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. |
| 1081 | * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, |
| 1082 | * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. |
| 1083 | */ |
| 1084 | |
| 1085 | if (twl_class_is_4030()) { |
| 1086 | twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); |
| 1087 | temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ |
| 1088 | I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); |
| 1089 | twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); |
| 1090 | } |
| 1091 | |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 1092 | status = add_children(pdata, id->driver_data); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1093 | fail: |
| 1094 | if (status < 0) |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1095 | twl_remove(client); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1096 | return status; |
| 1097 | } |
| 1098 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1099 | static const struct i2c_device_id twl_ids[] = { |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 1100 | { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ |
| 1101 | { "twl5030", 0 }, /* T2 updated */ |
Ilkka Koskinen | 1920a61 | 2009-11-10 17:26:15 +0200 | [diff] [blame] | 1102 | { "twl5031", TWL5031 }, /* TWL5030 updated */ |
David Brownell | dad759f | 2008-12-01 00:43:58 +0100 | [diff] [blame] | 1103 | { "tps65950", 0 }, /* catalog version of twl5030 */ |
| 1104 | { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ |
| 1105 | { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ |
Balaji T K | e8deb28 | 2009-12-14 00:25:31 +0100 | [diff] [blame] | 1106 | { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1107 | { /* end of list */ }, |
| 1108 | }; |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1109 | MODULE_DEVICE_TABLE(i2c, twl_ids); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1110 | |
| 1111 | /* One Client Driver , 4 Clients */ |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1112 | static struct i2c_driver twl_driver = { |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1113 | .driver.name = DRIVER_NAME, |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1114 | .id_table = twl_ids, |
| 1115 | .probe = twl_probe, |
| 1116 | .remove = twl_remove, |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1117 | }; |
| 1118 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1119 | static int __init twl_init(void) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1120 | { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1121 | return i2c_add_driver(&twl_driver); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1122 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1123 | subsys_initcall(twl_init); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1124 | |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1125 | static void __exit twl_exit(void) |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1126 | { |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1127 | i2c_del_driver(&twl_driver); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1128 | } |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1129 | module_exit(twl_exit); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1130 | |
| 1131 | MODULE_AUTHOR("Texas Instruments, Inc."); |
Balaji T K | fc7b92f | 2009-12-13 21:23:33 +0100 | [diff] [blame] | 1132 | MODULE_DESCRIPTION("I2C Core interface for TWL"); |
David Brownell | a603a7f | 2008-10-15 12:15:39 +0200 | [diff] [blame] | 1133 | MODULE_LICENSE("GPL"); |