1b07682b6SSantosh Shilimkar /* 2fc7b92fcSBalaji T K * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM 3fc7b92fcSBalaji T K * and audio CODEC devices 4b07682b6SSantosh Shilimkar * 5b07682b6SSantosh Shilimkar * Copyright (C) 2005-2006 Texas Instruments, Inc. 6b07682b6SSantosh Shilimkar * 7b07682b6SSantosh Shilimkar * Modifications to defer interrupt handling to a kernel thread: 8b07682b6SSantosh Shilimkar * Copyright (C) 2006 MontaVista Software, Inc. 9b07682b6SSantosh Shilimkar * 10b07682b6SSantosh Shilimkar * Based on tlv320aic23.c: 11b07682b6SSantosh Shilimkar * Copyright (c) by Kai Svahn <kai.svahn@nokia.com> 12b07682b6SSantosh Shilimkar * 13b07682b6SSantosh Shilimkar * Code cleanup and modifications to IRQ handler. 14b07682b6SSantosh Shilimkar * by syed khasim <x0khasim@ti.com> 15b07682b6SSantosh Shilimkar * 16b07682b6SSantosh Shilimkar * This program is free software; you can redistribute it and/or modify 17b07682b6SSantosh Shilimkar * it under the terms of the GNU General Public License as published by 18b07682b6SSantosh Shilimkar * the Free Software Foundation; either version 2 of the License, or 19b07682b6SSantosh Shilimkar * (at your option) any later version. 20b07682b6SSantosh Shilimkar * 21b07682b6SSantosh Shilimkar * This program is distributed in the hope that it will be useful, 22b07682b6SSantosh Shilimkar * but WITHOUT ANY WARRANTY; without even the implied warranty of 23b07682b6SSantosh Shilimkar * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24b07682b6SSantosh Shilimkar * GNU General Public License for more details. 25b07682b6SSantosh Shilimkar * 26b07682b6SSantosh Shilimkar * You should have received a copy of the GNU General Public License 27b07682b6SSantosh Shilimkar * along with this program; if not, write to the Free Software 28b07682b6SSantosh Shilimkar * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29b07682b6SSantosh Shilimkar */ 30b07682b6SSantosh Shilimkar 31b07682b6SSantosh Shilimkar #include <linux/init.h> 32b07682b6SSantosh Shilimkar #include <linux/mutex.h> 334e36dd33SPaul Gortmaker #include <linux/module.h> 34b07682b6SSantosh Shilimkar #include <linux/platform_device.h> 35b07682b6SSantosh Shilimkar #include <linux/clk.h> 36b07682b6SSantosh Shilimkar #include <linux/err.h> 37aeb5032bSBenoit Cousson #include <linux/device.h> 38aeb5032bSBenoit Cousson #include <linux/of.h> 39aeb5032bSBenoit Cousson #include <linux/of_irq.h> 40aeb5032bSBenoit Cousson #include <linux/of_platform.h> 41e7cc3acaSGrant Likely #include <linux/irq.h> 42aeb5032bSBenoit Cousson #include <linux/irqdomain.h> 43b07682b6SSantosh Shilimkar 44b07682b6SSantosh Shilimkar #include <linux/regulator/machine.h> 45b07682b6SSantosh Shilimkar 46b07682b6SSantosh Shilimkar #include <linux/i2c.h> 47b07682b6SSantosh Shilimkar #include <linux/i2c/twl.h> 48b07682b6SSantosh Shilimkar 491b8f333fSBenoit Cousson #include "twl-core.h" 50b07682b6SSantosh Shilimkar 51b07682b6SSantosh Shilimkar /* 52b07682b6SSantosh Shilimkar * The TWL4030 "Triton 2" is one of a family of a multi-function "Power 53b07682b6SSantosh Shilimkar * Management and System Companion Device" chips originally designed for 54b07682b6SSantosh Shilimkar * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, 55b07682b6SSantosh Shilimkar * often at around 3 Mbit/sec, including for interrupt handling. 56b07682b6SSantosh Shilimkar * 57b07682b6SSantosh Shilimkar * This driver core provides genirq support for the interrupts emitted, 58b07682b6SSantosh Shilimkar * by the various modules, and exports register access primitives. 59b07682b6SSantosh Shilimkar * 60b07682b6SSantosh Shilimkar * FIXME this driver currently requires use of the first interrupt line 61b07682b6SSantosh Shilimkar * (and associated registers). 62b07682b6SSantosh Shilimkar */ 63b07682b6SSantosh Shilimkar 64fc7b92fcSBalaji T K #define DRIVER_NAME "twl" 65b07682b6SSantosh Shilimkar 66b07682b6SSantosh Shilimkar #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE) 67b07682b6SSantosh Shilimkar #define twl_has_keypad() true 68b07682b6SSantosh Shilimkar #else 69b07682b6SSantosh Shilimkar #define twl_has_keypad() false 70b07682b6SSantosh Shilimkar #endif 71b07682b6SSantosh Shilimkar 72b07682b6SSantosh Shilimkar #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE) 73b07682b6SSantosh Shilimkar #define twl_has_gpio() true 74b07682b6SSantosh Shilimkar #else 75b07682b6SSantosh Shilimkar #define twl_has_gpio() false 76b07682b6SSantosh Shilimkar #endif 77b07682b6SSantosh Shilimkar 78b07682b6SSantosh Shilimkar #if defined(CONFIG_REGULATOR_TWL4030) \ 79b07682b6SSantosh Shilimkar || defined(CONFIG_REGULATOR_TWL4030_MODULE) 80b07682b6SSantosh Shilimkar #define twl_has_regulator() true 81b07682b6SSantosh Shilimkar #else 82b07682b6SSantosh Shilimkar #define twl_has_regulator() false 83b07682b6SSantosh Shilimkar #endif 84b07682b6SSantosh Shilimkar 85b07682b6SSantosh Shilimkar #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE) 86b07682b6SSantosh Shilimkar #define twl_has_madc() true 87b07682b6SSantosh Shilimkar #else 88b07682b6SSantosh Shilimkar #define twl_has_madc() false 89b07682b6SSantosh Shilimkar #endif 90b07682b6SSantosh Shilimkar 91b07682b6SSantosh Shilimkar #ifdef CONFIG_TWL4030_POWER 92b07682b6SSantosh Shilimkar #define twl_has_power() true 93b07682b6SSantosh Shilimkar #else 94b07682b6SSantosh Shilimkar #define twl_has_power() false 95b07682b6SSantosh Shilimkar #endif 96b07682b6SSantosh Shilimkar 97b07682b6SSantosh Shilimkar #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE) 98b07682b6SSantosh Shilimkar #define twl_has_rtc() true 99b07682b6SSantosh Shilimkar #else 100b07682b6SSantosh Shilimkar #define twl_has_rtc() false 101b07682b6SSantosh Shilimkar #endif 102b07682b6SSantosh Shilimkar 103e70357e3SHema HK #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\ 104e70357e3SHema HK defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE) 105b07682b6SSantosh Shilimkar #define twl_has_usb() true 106b07682b6SSantosh Shilimkar #else 107b07682b6SSantosh Shilimkar #define twl_has_usb() false 108b07682b6SSantosh Shilimkar #endif 109b07682b6SSantosh Shilimkar 110b07682b6SSantosh Shilimkar #if defined(CONFIG_TWL4030_WATCHDOG) || \ 111b07682b6SSantosh Shilimkar defined(CONFIG_TWL4030_WATCHDOG_MODULE) 112b07682b6SSantosh Shilimkar #define twl_has_watchdog() true 113b07682b6SSantosh Shilimkar #else 114b07682b6SSantosh Shilimkar #define twl_has_watchdog() false 115b07682b6SSantosh Shilimkar #endif 116b07682b6SSantosh Shilimkar 117364cedb2SPeter Ujfalusi #if defined(CONFIG_MFD_TWL4030_AUDIO) || \ 118364cedb2SPeter Ujfalusi defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) 119b07682b6SSantosh Shilimkar #define twl_has_codec() true 120b07682b6SSantosh Shilimkar #else 121b07682b6SSantosh Shilimkar #define twl_has_codec() false 122b07682b6SSantosh Shilimkar #endif 123b07682b6SSantosh Shilimkar 12411c39c4bSGrazvydas Ignotas #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE) 12511c39c4bSGrazvydas Ignotas #define twl_has_bci() true 12611c39c4bSGrazvydas Ignotas #else 12711c39c4bSGrazvydas Ignotas #define twl_has_bci() false 12811c39c4bSGrazvydas Ignotas #endif 12911c39c4bSGrazvydas Ignotas 130b07682b6SSantosh Shilimkar /* Triton Core internal information (BEGIN) */ 131b07682b6SSantosh Shilimkar 132b07682b6SSantosh Shilimkar /* Last - for index max*/ 133b07682b6SSantosh Shilimkar #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG 134b07682b6SSantosh Shilimkar 135fc7b92fcSBalaji T K #define TWL_NUM_SLAVES 4 136b07682b6SSantosh Shilimkar 137b07682b6SSantosh Shilimkar #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \ 13814e5c82cSEduardo Valentin || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE) 139b07682b6SSantosh Shilimkar #define twl_has_pwrbutton() true 140b07682b6SSantosh Shilimkar #else 141b07682b6SSantosh Shilimkar #define twl_has_pwrbutton() false 142b07682b6SSantosh Shilimkar #endif 143b07682b6SSantosh Shilimkar 144fc7b92fcSBalaji T K #define SUB_CHIP_ID0 0 145fc7b92fcSBalaji T K #define SUB_CHIP_ID1 1 146fc7b92fcSBalaji T K #define SUB_CHIP_ID2 2 147fc7b92fcSBalaji T K #define SUB_CHIP_ID3 3 148364cedb2SPeter Ujfalusi #define SUB_CHIP_ID_INVAL 0xff 149fc7b92fcSBalaji T K 150fc7b92fcSBalaji T K #define TWL_MODULE_LAST TWL4030_MODULE_LAST 151fc7b92fcSBalaji T K 152b07682b6SSantosh Shilimkar /* Base Address defns for twl4030_map[] */ 153b07682b6SSantosh Shilimkar 154b07682b6SSantosh Shilimkar /* subchip/slave 0 - USB ID */ 155b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_USB 0x0000 156b07682b6SSantosh Shilimkar 157b07682b6SSantosh Shilimkar /* subchip/slave 1 - AUD ID */ 158b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 159b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_GPIO 0x0098 160b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_INTBR 0x0085 161b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PIH 0x0080 162b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_TEST 0x004C 163b07682b6SSantosh Shilimkar 164b07682b6SSantosh Shilimkar /* subchip/slave 2 - AUX ID */ 165b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_INTERRUPTS 0x00B9 166b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_LED 0x00EE 167b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_MADC 0x0000 168b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 169b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PRECHARGE 0x00AA 170b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWM0 0x00F8 171b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWM1 0x00FB 172b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWMA 0x00EF 173b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWMB 0x00F1 174b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_KEYPAD 0x00D2 175b07682b6SSantosh Shilimkar 176b07682b6SSantosh Shilimkar #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ 177b07682b6SSantosh Shilimkar #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's 178b07682b6SSantosh Shilimkar one */ 179b07682b6SSantosh Shilimkar 180b07682b6SSantosh Shilimkar /* subchip/slave 3 - POWER ID */ 181b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_BACKUP 0x0014 182b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_INT 0x002E 183b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PM_MASTER 0x0036 184b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PM_RECEIVER 0x005B 185b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_RTC 0x001C 186b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_SECURED_REG 0x0000 187b07682b6SSantosh Shilimkar 188b07682b6SSantosh Shilimkar /* Triton Core internal information (END) */ 189b07682b6SSantosh Shilimkar 190b07682b6SSantosh Shilimkar 191e8deb28cSBalaji T K /* subchip/slave 0 0x48 - POWER */ 192e8deb28cSBalaji T K #define TWL6030_BASEADD_RTC 0x0000 193e8deb28cSBalaji T K #define TWL6030_BASEADD_MEM 0x0017 194e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_MASTER 0x001F 195e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ 196e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_MISC 0x00E2 197e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_PUPD 0x00F0 198e8deb28cSBalaji T K 199e8deb28cSBalaji T K /* subchip/slave 1 0x49 - FEATURE */ 200e8deb28cSBalaji T K #define TWL6030_BASEADD_USB 0x0000 201e8deb28cSBalaji T K #define TWL6030_BASEADD_GPADC_CTRL 0x002E 202e8deb28cSBalaji T K #define TWL6030_BASEADD_AUX 0x0090 203e8deb28cSBalaji T K #define TWL6030_BASEADD_PWM 0x00BA 204e8deb28cSBalaji T K #define TWL6030_BASEADD_GASGAUGE 0x00C0 205e8deb28cSBalaji T K #define TWL6030_BASEADD_PIH 0x00D0 206e8deb28cSBalaji T K #define TWL6030_BASEADD_CHARGER 0x00E0 207521d8ec3SGraeme Gregory #define TWL6025_BASEADD_CHARGER 0x00DA 208e8deb28cSBalaji T K 209e8deb28cSBalaji T K /* subchip/slave 2 0x4A - DFT */ 210e8deb28cSBalaji T K #define TWL6030_BASEADD_DIEID 0x00C0 211e8deb28cSBalaji T K 212e8deb28cSBalaji T K /* subchip/slave 3 0x4B - AUDIO */ 213e8deb28cSBalaji T K #define TWL6030_BASEADD_AUDIO 0x0000 214e8deb28cSBalaji T K #define TWL6030_BASEADD_RSV 0x0000 215fa0d9762SBalaji T K #define TWL6030_BASEADD_ZERO 0x0000 216e8deb28cSBalaji T K 217b07682b6SSantosh Shilimkar /* Few power values */ 218b07682b6SSantosh Shilimkar #define R_CFG_BOOT 0x05 219b07682b6SSantosh Shilimkar 220b07682b6SSantosh Shilimkar /* some fields in R_CFG_BOOT */ 221b07682b6SSantosh Shilimkar #define HFCLK_FREQ_19p2_MHZ (1 << 0) 222b07682b6SSantosh Shilimkar #define HFCLK_FREQ_26_MHZ (2 << 0) 223b07682b6SSantosh Shilimkar #define HFCLK_FREQ_38p4_MHZ (3 << 0) 224b07682b6SSantosh Shilimkar #define HIGH_PERF_SQ (1 << 3) 225b07682b6SSantosh Shilimkar #define CK32K_LOWPWR_EN (1 << 7) 226b07682b6SSantosh Shilimkar 227b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 228b07682b6SSantosh Shilimkar 229b07682b6SSantosh Shilimkar /* is driver active, bound to a chip? */ 230b07682b6SSantosh Shilimkar static bool inuse; 231b07682b6SSantosh Shilimkar 232ca972d13SLesly A M /* TWL IDCODE Register value */ 233ca972d13SLesly A M static u32 twl_idcode; 234ca972d13SLesly A M 235e8deb28cSBalaji T K static unsigned int twl_id; 236e8deb28cSBalaji T K unsigned int twl_rev(void) 237e8deb28cSBalaji T K { 238e8deb28cSBalaji T K return twl_id; 239e8deb28cSBalaji T K } 240e8deb28cSBalaji T K EXPORT_SYMBOL(twl_rev); 241e8deb28cSBalaji T K 242e8deb28cSBalaji T K /* Structure for each TWL4030/TWL6030 Slave */ 243fc7b92fcSBalaji T K struct twl_client { 244b07682b6SSantosh Shilimkar struct i2c_client *client; 245b07682b6SSantosh Shilimkar u8 address; 246b07682b6SSantosh Shilimkar 247b07682b6SSantosh Shilimkar /* max numb of i2c_msg required is for read =2 */ 248b07682b6SSantosh Shilimkar struct i2c_msg xfer_msg[2]; 249b07682b6SSantosh Shilimkar 250b07682b6SSantosh Shilimkar /* To lock access to xfer_msg */ 251b07682b6SSantosh Shilimkar struct mutex xfer_lock; 252b07682b6SSantosh Shilimkar }; 253b07682b6SSantosh Shilimkar 254fc7b92fcSBalaji T K static struct twl_client twl_modules[TWL_NUM_SLAVES]; 255b07682b6SSantosh Shilimkar 256b07682b6SSantosh Shilimkar /* mapping the module id to slave id and base address */ 257fc7b92fcSBalaji T K struct twl_mapping { 258b07682b6SSantosh Shilimkar unsigned char sid; /* Slave ID */ 259b07682b6SSantosh Shilimkar unsigned char base; /* base address */ 260b07682b6SSantosh Shilimkar }; 2612cfcce18SG, Manjunath Kondaiah static struct twl_mapping *twl_map; 262b07682b6SSantosh Shilimkar 263fc7b92fcSBalaji T K static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { 264b07682b6SSantosh Shilimkar /* 265b07682b6SSantosh Shilimkar * NOTE: don't change this table without updating the 266e8deb28cSBalaji T K * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 267b07682b6SSantosh Shilimkar * so they continue to match the order in this table. 268b07682b6SSantosh Shilimkar */ 269b07682b6SSantosh Shilimkar 270b07682b6SSantosh Shilimkar { 0, TWL4030_BASEADD_USB }, 271b07682b6SSantosh Shilimkar 272b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_AUDIO_VOICE }, 273b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_GPIO }, 274b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_INTBR }, 275b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_PIH }, 276b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_TEST }, 277b07682b6SSantosh Shilimkar 278b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_KEYPAD }, 279b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_MADC }, 280b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_INTERRUPTS }, 281b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_LED }, 282b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_MAIN_CHARGE }, 283b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PRECHARGE }, 284b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWM0 }, 285b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWM1 }, 286b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWMA }, 287b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWMB }, 288b07682b6SSantosh Shilimkar { 2, TWL5031_BASEADD_ACCESSORY }, 289b07682b6SSantosh Shilimkar { 2, TWL5031_BASEADD_INTERRUPTS }, 290b07682b6SSantosh Shilimkar 291b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_BACKUP }, 292b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_INT }, 293b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_PM_MASTER }, 294b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_PM_RECEIVER }, 295b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_RTC }, 296b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_SECURED_REG }, 297b07682b6SSantosh Shilimkar }; 298b07682b6SSantosh Shilimkar 299e8deb28cSBalaji T K static struct twl_mapping twl6030_map[] = { 300e8deb28cSBalaji T K /* 301e8deb28cSBalaji T K * NOTE: don't change this table without updating the 302e8deb28cSBalaji T K * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 303e8deb28cSBalaji T K * so they continue to match the order in this table. 304e8deb28cSBalaji T K */ 305e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, 306364cedb2SPeter Ujfalusi { SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO }, 307e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, 308e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 309e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, 310e8deb28cSBalaji T K 311e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 312e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 313e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, 314e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 315e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 316e8deb28cSBalaji T K 317e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, 318e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, 319e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, 320fa0d9762SBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, 321fa0d9762SBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, 322e8deb28cSBalaji T K 323fa0d9762SBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 324fa0d9762SBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 325e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 326e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 327e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 328e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, 329e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, 330e8deb28cSBalaji T K 331e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, 332e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, 333521d8ec3SGraeme Gregory { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, 334e8deb28cSBalaji T K }; 335e8deb28cSBalaji T K 336b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 337b07682b6SSantosh Shilimkar 338b07682b6SSantosh Shilimkar /* Exported Functions */ 339b07682b6SSantosh Shilimkar 340b07682b6SSantosh Shilimkar /** 341fc7b92fcSBalaji T K * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 342b07682b6SSantosh Shilimkar * @mod_no: module number 343b07682b6SSantosh Shilimkar * @value: an array of num_bytes+1 containing data to write 344b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 345b07682b6SSantosh Shilimkar * @num_bytes: number of bytes to transfer 346b07682b6SSantosh Shilimkar * 347b07682b6SSantosh Shilimkar * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and 348b07682b6SSantosh Shilimkar * valid data starts at Offset 1. 349b07682b6SSantosh Shilimkar * 350b07682b6SSantosh Shilimkar * Returns the result of operation - 0 is success 351b07682b6SSantosh Shilimkar */ 352fc7b92fcSBalaji T K int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 353b07682b6SSantosh Shilimkar { 354b07682b6SSantosh Shilimkar int ret; 355b07682b6SSantosh Shilimkar int sid; 356fc7b92fcSBalaji T K struct twl_client *twl; 357b07682b6SSantosh Shilimkar struct i2c_msg *msg; 358b07682b6SSantosh Shilimkar 359fc7b92fcSBalaji T K if (unlikely(mod_no > TWL_MODULE_LAST)) { 360b07682b6SSantosh Shilimkar pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 361b07682b6SSantosh Shilimkar return -EPERM; 362b07682b6SSantosh Shilimkar } 3638653be1aSIlya Yanok if (unlikely(!inuse)) { 3648653be1aSIlya Yanok pr_err("%s: not initialized\n", DRIVER_NAME); 3658653be1aSIlya Yanok return -EPERM; 3668653be1aSIlya Yanok } 367e8deb28cSBalaji T K sid = twl_map[mod_no].sid; 368364cedb2SPeter Ujfalusi if (unlikely(sid == SUB_CHIP_ID_INVAL)) { 369364cedb2SPeter Ujfalusi pr_err("%s: module %d is not part of the pmic\n", 370364cedb2SPeter Ujfalusi DRIVER_NAME, mod_no); 371364cedb2SPeter Ujfalusi return -EINVAL; 372364cedb2SPeter Ujfalusi } 373fc7b92fcSBalaji T K twl = &twl_modules[sid]; 374b07682b6SSantosh Shilimkar 375b07682b6SSantosh Shilimkar mutex_lock(&twl->xfer_lock); 376b07682b6SSantosh Shilimkar /* 377b07682b6SSantosh Shilimkar * [MSG1]: fill the register address data 378b07682b6SSantosh Shilimkar * fill the data Tx buffer 379b07682b6SSantosh Shilimkar */ 380b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[0]; 381b07682b6SSantosh Shilimkar msg->addr = twl->address; 382b07682b6SSantosh Shilimkar msg->len = num_bytes + 1; 383b07682b6SSantosh Shilimkar msg->flags = 0; 384b07682b6SSantosh Shilimkar msg->buf = value; 385b07682b6SSantosh Shilimkar /* over write the first byte of buffer with the register address */ 386e8deb28cSBalaji T K *value = twl_map[mod_no].base + reg; 387b07682b6SSantosh Shilimkar ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); 388b07682b6SSantosh Shilimkar mutex_unlock(&twl->xfer_lock); 389b07682b6SSantosh Shilimkar 390b07682b6SSantosh Shilimkar /* i2c_transfer returns number of messages transferred */ 391b07682b6SSantosh Shilimkar if (ret != 1) { 392b07682b6SSantosh Shilimkar pr_err("%s: i2c_write failed to transfer all messages\n", 393b07682b6SSantosh Shilimkar DRIVER_NAME); 394b07682b6SSantosh Shilimkar if (ret < 0) 395b07682b6SSantosh Shilimkar return ret; 396b07682b6SSantosh Shilimkar else 397b07682b6SSantosh Shilimkar return -EIO; 398b07682b6SSantosh Shilimkar } else { 399b07682b6SSantosh Shilimkar return 0; 400b07682b6SSantosh Shilimkar } 401b07682b6SSantosh Shilimkar } 402fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_write); 403b07682b6SSantosh Shilimkar 404b07682b6SSantosh Shilimkar /** 405fc7b92fcSBalaji T K * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 406b07682b6SSantosh Shilimkar * @mod_no: module number 407b07682b6SSantosh Shilimkar * @value: an array of num_bytes containing data to be read 408b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 409b07682b6SSantosh Shilimkar * @num_bytes: number of bytes to transfer 410b07682b6SSantosh Shilimkar * 411b07682b6SSantosh Shilimkar * Returns result of operation - num_bytes is success else failure. 412b07682b6SSantosh Shilimkar */ 413fc7b92fcSBalaji T K int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 414b07682b6SSantosh Shilimkar { 415b07682b6SSantosh Shilimkar int ret; 416b07682b6SSantosh Shilimkar u8 val; 417b07682b6SSantosh Shilimkar int sid; 418fc7b92fcSBalaji T K struct twl_client *twl; 419b07682b6SSantosh Shilimkar struct i2c_msg *msg; 420b07682b6SSantosh Shilimkar 421fc7b92fcSBalaji T K if (unlikely(mod_no > TWL_MODULE_LAST)) { 422b07682b6SSantosh Shilimkar pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 423b07682b6SSantosh Shilimkar return -EPERM; 424b07682b6SSantosh Shilimkar } 4258653be1aSIlya Yanok if (unlikely(!inuse)) { 4268653be1aSIlya Yanok pr_err("%s: not initialized\n", DRIVER_NAME); 4278653be1aSIlya Yanok return -EPERM; 4288653be1aSIlya Yanok } 429e8deb28cSBalaji T K sid = twl_map[mod_no].sid; 430364cedb2SPeter Ujfalusi if (unlikely(sid == SUB_CHIP_ID_INVAL)) { 431364cedb2SPeter Ujfalusi pr_err("%s: module %d is not part of the pmic\n", 432364cedb2SPeter Ujfalusi DRIVER_NAME, mod_no); 433364cedb2SPeter Ujfalusi return -EINVAL; 434364cedb2SPeter Ujfalusi } 435fc7b92fcSBalaji T K twl = &twl_modules[sid]; 436b07682b6SSantosh Shilimkar 437b07682b6SSantosh Shilimkar mutex_lock(&twl->xfer_lock); 438b07682b6SSantosh Shilimkar /* [MSG1] fill the register address data */ 439b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[0]; 440b07682b6SSantosh Shilimkar msg->addr = twl->address; 441b07682b6SSantosh Shilimkar msg->len = 1; 442b07682b6SSantosh Shilimkar msg->flags = 0; /* Read the register value */ 443e8deb28cSBalaji T K val = twl_map[mod_no].base + reg; 444b07682b6SSantosh Shilimkar msg->buf = &val; 445b07682b6SSantosh Shilimkar /* [MSG2] fill the data rx buffer */ 446b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[1]; 447b07682b6SSantosh Shilimkar msg->addr = twl->address; 448b07682b6SSantosh Shilimkar msg->flags = I2C_M_RD; /* Read the register value */ 449b07682b6SSantosh Shilimkar msg->len = num_bytes; /* only n bytes */ 450b07682b6SSantosh Shilimkar msg->buf = value; 451b07682b6SSantosh Shilimkar ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); 452b07682b6SSantosh Shilimkar mutex_unlock(&twl->xfer_lock); 453b07682b6SSantosh Shilimkar 454b07682b6SSantosh Shilimkar /* i2c_transfer returns number of messages transferred */ 455b07682b6SSantosh Shilimkar if (ret != 2) { 456b07682b6SSantosh Shilimkar pr_err("%s: i2c_read failed to transfer all messages\n", 457b07682b6SSantosh Shilimkar DRIVER_NAME); 458b07682b6SSantosh Shilimkar if (ret < 0) 459b07682b6SSantosh Shilimkar return ret; 460b07682b6SSantosh Shilimkar else 461b07682b6SSantosh Shilimkar return -EIO; 462b07682b6SSantosh Shilimkar } else { 463b07682b6SSantosh Shilimkar return 0; 464b07682b6SSantosh Shilimkar } 465b07682b6SSantosh Shilimkar } 466fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_read); 467b07682b6SSantosh Shilimkar 468b07682b6SSantosh Shilimkar /** 469fc7b92fcSBalaji T K * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 470b07682b6SSantosh Shilimkar * @mod_no: module number 471b07682b6SSantosh Shilimkar * @value: the value to be written 8 bit 472b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 473b07682b6SSantosh Shilimkar * 474b07682b6SSantosh Shilimkar * Returns result of operation - 0 is success 475b07682b6SSantosh Shilimkar */ 476fc7b92fcSBalaji T K int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) 477b07682b6SSantosh Shilimkar { 478b07682b6SSantosh Shilimkar 479b07682b6SSantosh Shilimkar /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ 480b07682b6SSantosh Shilimkar u8 temp_buffer[2] = { 0 }; 481b07682b6SSantosh Shilimkar /* offset 1 contains the data */ 482b07682b6SSantosh Shilimkar temp_buffer[1] = value; 483fc7b92fcSBalaji T K return twl_i2c_write(mod_no, temp_buffer, reg, 1); 484b07682b6SSantosh Shilimkar } 485fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_write_u8); 486b07682b6SSantosh Shilimkar 487b07682b6SSantosh Shilimkar /** 488fc7b92fcSBalaji T K * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 489b07682b6SSantosh Shilimkar * @mod_no: module number 490b07682b6SSantosh Shilimkar * @value: the value read 8 bit 491b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 492b07682b6SSantosh Shilimkar * 493b07682b6SSantosh Shilimkar * Returns result of operation - 0 is success 494b07682b6SSantosh Shilimkar */ 495fc7b92fcSBalaji T K int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 496b07682b6SSantosh Shilimkar { 497fc7b92fcSBalaji T K return twl_i2c_read(mod_no, value, reg, 1); 498b07682b6SSantosh Shilimkar } 499fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_read_u8); 500b07682b6SSantosh Shilimkar 501b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 502b07682b6SSantosh Shilimkar 503ca972d13SLesly A M /** 504ca972d13SLesly A M * twl_read_idcode_register - API to read the IDCODE register. 505ca972d13SLesly A M * 506ca972d13SLesly A M * Unlocks the IDCODE register and read the 32 bit value. 507ca972d13SLesly A M */ 508ca972d13SLesly A M static int twl_read_idcode_register(void) 509ca972d13SLesly A M { 510ca972d13SLesly A M int err; 511ca972d13SLesly A M 512ca972d13SLesly A M err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, 513ca972d13SLesly A M REG_UNLOCK_TEST_REG); 514ca972d13SLesly A M if (err) { 515ca972d13SLesly A M pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); 516ca972d13SLesly A M goto fail; 517ca972d13SLesly A M } 518ca972d13SLesly A M 519ca972d13SLesly A M err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), 520ca972d13SLesly A M REG_IDCODE_7_0, 4); 521ca972d13SLesly A M if (err) { 522ca972d13SLesly A M pr_err("TWL4030: unable to read IDCODE -%d\n", err); 523ca972d13SLesly A M goto fail; 524ca972d13SLesly A M } 525ca972d13SLesly A M 526ca972d13SLesly A M err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); 527ca972d13SLesly A M if (err) 528ca972d13SLesly A M pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); 529ca972d13SLesly A M fail: 530ca972d13SLesly A M return err; 531ca972d13SLesly A M } 532ca972d13SLesly A M 533ca972d13SLesly A M /** 534ca972d13SLesly A M * twl_get_type - API to get TWL Si type. 535ca972d13SLesly A M * 536ca972d13SLesly A M * Api to get the TWL Si type from IDCODE value. 537ca972d13SLesly A M */ 538ca972d13SLesly A M int twl_get_type(void) 539ca972d13SLesly A M { 540ca972d13SLesly A M return TWL_SIL_TYPE(twl_idcode); 541ca972d13SLesly A M } 542ca972d13SLesly A M EXPORT_SYMBOL_GPL(twl_get_type); 543ca972d13SLesly A M 544ca972d13SLesly A M /** 545ca972d13SLesly A M * twl_get_version - API to get TWL Si version. 546ca972d13SLesly A M * 547ca972d13SLesly A M * Api to get the TWL Si version from IDCODE value. 548ca972d13SLesly A M */ 549ca972d13SLesly A M int twl_get_version(void) 550ca972d13SLesly A M { 551ca972d13SLesly A M return TWL_SIL_REV(twl_idcode); 552ca972d13SLesly A M } 553ca972d13SLesly A M EXPORT_SYMBOL_GPL(twl_get_version); 554ca972d13SLesly A M 555b07682b6SSantosh Shilimkar static struct device * 556b07682b6SSantosh Shilimkar add_numbered_child(unsigned chip, const char *name, int num, 557b07682b6SSantosh Shilimkar void *pdata, unsigned pdata_len, 558b07682b6SSantosh Shilimkar bool can_wakeup, int irq0, int irq1) 559b07682b6SSantosh Shilimkar { 560b07682b6SSantosh Shilimkar struct platform_device *pdev; 561fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[chip]; 562b07682b6SSantosh Shilimkar int status; 563b07682b6SSantosh Shilimkar 564b07682b6SSantosh Shilimkar pdev = platform_device_alloc(name, num); 565b07682b6SSantosh Shilimkar if (!pdev) { 566b07682b6SSantosh Shilimkar dev_dbg(&twl->client->dev, "can't alloc dev\n"); 567b07682b6SSantosh Shilimkar status = -ENOMEM; 568b07682b6SSantosh Shilimkar goto err; 569b07682b6SSantosh Shilimkar } 570b07682b6SSantosh Shilimkar 571b07682b6SSantosh Shilimkar device_init_wakeup(&pdev->dev, can_wakeup); 572b07682b6SSantosh Shilimkar pdev->dev.parent = &twl->client->dev; 573b07682b6SSantosh Shilimkar 574b07682b6SSantosh Shilimkar if (pdata) { 575b07682b6SSantosh Shilimkar status = platform_device_add_data(pdev, pdata, pdata_len); 576b07682b6SSantosh Shilimkar if (status < 0) { 577b07682b6SSantosh Shilimkar dev_dbg(&pdev->dev, "can't add platform_data\n"); 578b07682b6SSantosh Shilimkar goto err; 579b07682b6SSantosh Shilimkar } 580b07682b6SSantosh Shilimkar } 581b07682b6SSantosh Shilimkar 582b07682b6SSantosh Shilimkar if (irq0) { 583b07682b6SSantosh Shilimkar struct resource r[2] = { 584b07682b6SSantosh Shilimkar { .start = irq0, .flags = IORESOURCE_IRQ, }, 585b07682b6SSantosh Shilimkar { .start = irq1, .flags = IORESOURCE_IRQ, }, 586b07682b6SSantosh Shilimkar }; 587b07682b6SSantosh Shilimkar 588b07682b6SSantosh Shilimkar status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); 589b07682b6SSantosh Shilimkar if (status < 0) { 590b07682b6SSantosh Shilimkar dev_dbg(&pdev->dev, "can't add irqs\n"); 591b07682b6SSantosh Shilimkar goto err; 592b07682b6SSantosh Shilimkar } 593b07682b6SSantosh Shilimkar } 594b07682b6SSantosh Shilimkar 595b07682b6SSantosh Shilimkar status = platform_device_add(pdev); 596b07682b6SSantosh Shilimkar 597b07682b6SSantosh Shilimkar err: 598b07682b6SSantosh Shilimkar if (status < 0) { 599b07682b6SSantosh Shilimkar platform_device_put(pdev); 600b07682b6SSantosh Shilimkar dev_err(&twl->client->dev, "can't add %s dev\n", name); 601b07682b6SSantosh Shilimkar return ERR_PTR(status); 602b07682b6SSantosh Shilimkar } 603b07682b6SSantosh Shilimkar return &pdev->dev; 604b07682b6SSantosh Shilimkar } 605b07682b6SSantosh Shilimkar 606b07682b6SSantosh Shilimkar static inline struct device *add_child(unsigned chip, const char *name, 607b07682b6SSantosh Shilimkar void *pdata, unsigned pdata_len, 608b07682b6SSantosh Shilimkar bool can_wakeup, int irq0, int irq1) 609b07682b6SSantosh Shilimkar { 610b07682b6SSantosh Shilimkar return add_numbered_child(chip, name, -1, pdata, pdata_len, 611b07682b6SSantosh Shilimkar can_wakeup, irq0, irq1); 612b07682b6SSantosh Shilimkar } 613b07682b6SSantosh Shilimkar 614b07682b6SSantosh Shilimkar static struct device * 615b07682b6SSantosh Shilimkar add_regulator_linked(int num, struct regulator_init_data *pdata, 616b07682b6SSantosh Shilimkar struct regulator_consumer_supply *consumers, 617521d8ec3SGraeme Gregory unsigned num_consumers, unsigned long features) 618b07682b6SSantosh Shilimkar { 619e8deb28cSBalaji T K unsigned sub_chip_id; 62063bfff4eSTero Kristo struct twl_regulator_driver_data drv_data; 62163bfff4eSTero Kristo 622b07682b6SSantosh Shilimkar /* regulator framework demands init_data ... */ 623b07682b6SSantosh Shilimkar if (!pdata) 624b07682b6SSantosh Shilimkar return NULL; 625b07682b6SSantosh Shilimkar 626b07682b6SSantosh Shilimkar if (consumers) { 627b07682b6SSantosh Shilimkar pdata->consumer_supplies = consumers; 628b07682b6SSantosh Shilimkar pdata->num_consumer_supplies = num_consumers; 629b07682b6SSantosh Shilimkar } 630b07682b6SSantosh Shilimkar 63163bfff4eSTero Kristo if (pdata->driver_data) { 63263bfff4eSTero Kristo /* If we have existing drv_data, just add the flags */ 63363bfff4eSTero Kristo struct twl_regulator_driver_data *tmp; 63463bfff4eSTero Kristo tmp = pdata->driver_data; 63563bfff4eSTero Kristo tmp->features |= features; 63663bfff4eSTero Kristo } else { 63763bfff4eSTero Kristo /* add new driver data struct, used only during init */ 63863bfff4eSTero Kristo drv_data.features = features; 63963bfff4eSTero Kristo drv_data.set_voltage = NULL; 64063bfff4eSTero Kristo drv_data.get_voltage = NULL; 64163bfff4eSTero Kristo drv_data.data = NULL; 64263bfff4eSTero Kristo pdata->driver_data = &drv_data; 64363bfff4eSTero Kristo } 644521d8ec3SGraeme Gregory 645b07682b6SSantosh Shilimkar /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ 646e8deb28cSBalaji T K sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; 647e8deb28cSBalaji T K return add_numbered_child(sub_chip_id, "twl_reg", num, 648b07682b6SSantosh Shilimkar pdata, sizeof(*pdata), false, 0, 0); 649b07682b6SSantosh Shilimkar } 650b07682b6SSantosh Shilimkar 651b07682b6SSantosh Shilimkar static struct device * 652521d8ec3SGraeme Gregory add_regulator(int num, struct regulator_init_data *pdata, 653521d8ec3SGraeme Gregory unsigned long features) 654b07682b6SSantosh Shilimkar { 655521d8ec3SGraeme Gregory return add_regulator_linked(num, pdata, NULL, 0, features); 656b07682b6SSantosh Shilimkar } 657b07682b6SSantosh Shilimkar 658b07682b6SSantosh Shilimkar /* 659b07682b6SSantosh Shilimkar * NOTE: We know the first 8 IRQs after pdata->base_irq are 660b07682b6SSantosh Shilimkar * for the PIH, and the next are for the PWR_INT SIH, since 661b07682b6SSantosh Shilimkar * that's how twl_init_irq() sets things up. 662b07682b6SSantosh Shilimkar */ 663b07682b6SSantosh Shilimkar 664b07682b6SSantosh Shilimkar static int 6659e178620SFelipe Balbi add_children(struct twl4030_platform_data *pdata, unsigned irq_base, 6669e178620SFelipe Balbi unsigned long features) 667b07682b6SSantosh Shilimkar { 668b07682b6SSantosh Shilimkar struct device *child; 669e8deb28cSBalaji T K unsigned sub_chip_id; 670b07682b6SSantosh Shilimkar 671b07682b6SSantosh Shilimkar if (twl_has_gpio() && pdata->gpio) { 672fc7b92fcSBalaji T K child = add_child(SUB_CHIP_ID1, "twl4030_gpio", 673b07682b6SSantosh Shilimkar pdata->gpio, sizeof(*pdata->gpio), 6749e178620SFelipe Balbi false, irq_base + GPIO_INTR_OFFSET, 0); 675b07682b6SSantosh Shilimkar if (IS_ERR(child)) 676b07682b6SSantosh Shilimkar return PTR_ERR(child); 677b07682b6SSantosh Shilimkar } 678b07682b6SSantosh Shilimkar 679b07682b6SSantosh Shilimkar if (twl_has_keypad() && pdata->keypad) { 680fc7b92fcSBalaji T K child = add_child(SUB_CHIP_ID2, "twl4030_keypad", 681b07682b6SSantosh Shilimkar pdata->keypad, sizeof(*pdata->keypad), 6829e178620SFelipe Balbi true, irq_base + KEYPAD_INTR_OFFSET, 0); 683b07682b6SSantosh Shilimkar if (IS_ERR(child)) 684b07682b6SSantosh Shilimkar return PTR_ERR(child); 685b07682b6SSantosh Shilimkar } 686b07682b6SSantosh Shilimkar 687b07682b6SSantosh Shilimkar if (twl_has_madc() && pdata->madc) { 688b07682b6SSantosh Shilimkar child = add_child(2, "twl4030_madc", 689b07682b6SSantosh Shilimkar pdata->madc, sizeof(*pdata->madc), 6909e178620SFelipe Balbi true, irq_base + MADC_INTR_OFFSET, 0); 691b07682b6SSantosh Shilimkar if (IS_ERR(child)) 692b07682b6SSantosh Shilimkar return PTR_ERR(child); 693b07682b6SSantosh Shilimkar } 694b07682b6SSantosh Shilimkar 695b07682b6SSantosh Shilimkar if (twl_has_rtc()) { 696b07682b6SSantosh Shilimkar /* 697b07682b6SSantosh Shilimkar * REVISIT platform_data here currently might expose the 698b07682b6SSantosh Shilimkar * "msecure" line ... but for now we just expect board 699b07682b6SSantosh Shilimkar * setup to tell the chip "it's always ok to SET_TIME". 700b07682b6SSantosh Shilimkar * Eventually, Linux might become more aware of such 701b07682b6SSantosh Shilimkar * HW security concerns, and "least privilege". 702b07682b6SSantosh Shilimkar */ 703e8deb28cSBalaji T K sub_chip_id = twl_map[TWL_MODULE_RTC].sid; 704e8deb28cSBalaji T K child = add_child(sub_chip_id, "twl_rtc", 705b07682b6SSantosh Shilimkar NULL, 0, 7069e178620SFelipe Balbi true, irq_base + RTC_INTR_OFFSET, 0); 707b07682b6SSantosh Shilimkar if (IS_ERR(child)) 708b07682b6SSantosh Shilimkar return PTR_ERR(child); 709b07682b6SSantosh Shilimkar } 710b07682b6SSantosh Shilimkar 7119da66539SRajendra Nayak if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { 712b07682b6SSantosh Shilimkar 713b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb1v5 = { 714b07682b6SSantosh Shilimkar .supply = "usb1v5", 715b07682b6SSantosh Shilimkar }; 716b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb1v8 = { 717b07682b6SSantosh Shilimkar .supply = "usb1v8", 718b07682b6SSantosh Shilimkar }; 719ab37813fSNeilBrown static struct regulator_consumer_supply usb3v1[] = { 720ab37813fSNeilBrown { .supply = "usb3v1" }, 721ab37813fSNeilBrown { .supply = "bci3v1" }, 722b07682b6SSantosh Shilimkar }; 723b07682b6SSantosh Shilimkar 724b07682b6SSantosh Shilimkar /* First add the regulators so that they can be used by transceiver */ 725b07682b6SSantosh Shilimkar if (twl_has_regulator()) { 726b07682b6SSantosh Shilimkar /* this is a template that gets copied */ 727b07682b6SSantosh Shilimkar struct regulator_init_data usb_fixed = { 728b07682b6SSantosh Shilimkar .constraints.valid_modes_mask = 729b07682b6SSantosh Shilimkar REGULATOR_MODE_NORMAL 730b07682b6SSantosh Shilimkar | REGULATOR_MODE_STANDBY, 731b07682b6SSantosh Shilimkar .constraints.valid_ops_mask = 732b07682b6SSantosh Shilimkar REGULATOR_CHANGE_MODE 733b07682b6SSantosh Shilimkar | REGULATOR_CHANGE_STATUS, 734b07682b6SSantosh Shilimkar }; 735b07682b6SSantosh Shilimkar 736b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB1V5, 737521d8ec3SGraeme Gregory &usb_fixed, &usb1v5, 1, 738521d8ec3SGraeme Gregory features); 739b07682b6SSantosh Shilimkar if (IS_ERR(child)) 740b07682b6SSantosh Shilimkar return PTR_ERR(child); 741b07682b6SSantosh Shilimkar 742b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB1V8, 743521d8ec3SGraeme Gregory &usb_fixed, &usb1v8, 1, 744521d8ec3SGraeme Gregory features); 745b07682b6SSantosh Shilimkar if (IS_ERR(child)) 746b07682b6SSantosh Shilimkar return PTR_ERR(child); 747b07682b6SSantosh Shilimkar 748b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB3V1, 749ab37813fSNeilBrown &usb_fixed, usb3v1, 2, 750521d8ec3SGraeme Gregory features); 751b07682b6SSantosh Shilimkar if (IS_ERR(child)) 752b07682b6SSantosh Shilimkar return PTR_ERR(child); 753b07682b6SSantosh Shilimkar 754b07682b6SSantosh Shilimkar } 755b07682b6SSantosh Shilimkar 756b07682b6SSantosh Shilimkar child = add_child(0, "twl4030_usb", 757b07682b6SSantosh Shilimkar pdata->usb, sizeof(*pdata->usb), 758b07682b6SSantosh Shilimkar true, 759b07682b6SSantosh Shilimkar /* irq0 = USB_PRES, irq1 = USB */ 7609e178620SFelipe Balbi irq_base + USB_PRES_INTR_OFFSET, 7619e178620SFelipe Balbi irq_base + USB_INTR_OFFSET); 762b07682b6SSantosh Shilimkar 763b07682b6SSantosh Shilimkar if (IS_ERR(child)) 764b07682b6SSantosh Shilimkar return PTR_ERR(child); 765b07682b6SSantosh Shilimkar 766b07682b6SSantosh Shilimkar /* we need to connect regulators to this transceiver */ 767b07682b6SSantosh Shilimkar if (twl_has_regulator() && child) { 7681b65fa84SMark Brown usb1v5.dev_name = dev_name(child); 7691b65fa84SMark Brown usb1v8.dev_name = dev_name(child); 770ab37813fSNeilBrown usb3v1[0].dev_name = dev_name(child); 771b07682b6SSantosh Shilimkar } 772b07682b6SSantosh Shilimkar } 773e70357e3SHema HK if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { 774e70357e3SHema HK 775521d8ec3SGraeme Gregory static struct regulator_consumer_supply usb3v3; 776521d8ec3SGraeme Gregory int regulator; 777e70357e3SHema HK 778e70357e3SHema HK if (twl_has_regulator()) { 779e70357e3SHema HK /* this is a template that gets copied */ 780e70357e3SHema HK struct regulator_init_data usb_fixed = { 781e70357e3SHema HK .constraints.valid_modes_mask = 782e70357e3SHema HK REGULATOR_MODE_NORMAL 783e70357e3SHema HK | REGULATOR_MODE_STANDBY, 784e70357e3SHema HK .constraints.valid_ops_mask = 785e70357e3SHema HK REGULATOR_CHANGE_MODE 786e70357e3SHema HK | REGULATOR_CHANGE_STATUS, 787e70357e3SHema HK }; 788e70357e3SHema HK 789521d8ec3SGraeme Gregory if (features & TWL6025_SUBCLASS) { 790521d8ec3SGraeme Gregory usb3v3.supply = "ldousb"; 791521d8ec3SGraeme Gregory regulator = TWL6025_REG_LDOUSB; 792521d8ec3SGraeme Gregory } else { 793521d8ec3SGraeme Gregory usb3v3.supply = "vusb"; 794521d8ec3SGraeme Gregory regulator = TWL6030_REG_VUSB; 795521d8ec3SGraeme Gregory } 796521d8ec3SGraeme Gregory child = add_regulator_linked(regulator, &usb_fixed, 797521d8ec3SGraeme Gregory &usb3v3, 1, 798521d8ec3SGraeme Gregory features); 799e70357e3SHema HK if (IS_ERR(child)) 800e70357e3SHema HK return PTR_ERR(child); 801e70357e3SHema HK } 802e70357e3SHema HK 803521d8ec3SGraeme Gregory pdata->usb->features = features; 804521d8ec3SGraeme Gregory 805e70357e3SHema HK child = add_child(0, "twl6030_usb", 806e70357e3SHema HK pdata->usb, sizeof(*pdata->usb), 807e70357e3SHema HK true, 808e70357e3SHema HK /* irq1 = VBUS_PRES, irq0 = USB ID */ 8099e178620SFelipe Balbi irq_base + USBOTG_INTR_OFFSET, 8109e178620SFelipe Balbi irq_base + USB_PRES_INTR_OFFSET); 811e70357e3SHema HK 812e70357e3SHema HK if (IS_ERR(child)) 813e70357e3SHema HK return PTR_ERR(child); 814e70357e3SHema HK /* we need to connect regulators to this transceiver */ 815e70357e3SHema HK if (twl_has_regulator() && child) 8161b65fa84SMark Brown usb3v3.dev_name = dev_name(child); 817521d8ec3SGraeme Gregory } else if (twl_has_regulator() && twl_class_is_6030()) { 818521d8ec3SGraeme Gregory if (features & TWL6025_SUBCLASS) 819521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDOUSB, 820521d8ec3SGraeme Gregory pdata->ldousb, features); 821521d8ec3SGraeme Gregory else 822521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VUSB, 823521d8ec3SGraeme Gregory pdata->vusb, features); 824e70357e3SHema HK 825521d8ec3SGraeme Gregory if (IS_ERR(child)) 826521d8ec3SGraeme Gregory return PTR_ERR(child); 827e70357e3SHema HK } 828b07682b6SSantosh Shilimkar 829153617fdSKeerthy if (twl_has_watchdog() && twl_class_is_4030()) { 830b07682b6SSantosh Shilimkar child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); 831b07682b6SSantosh Shilimkar if (IS_ERR(child)) 832b07682b6SSantosh Shilimkar return PTR_ERR(child); 833b07682b6SSantosh Shilimkar } 834b07682b6SSantosh Shilimkar 835153617fdSKeerthy if (twl_has_pwrbutton() && twl_class_is_4030()) { 836b07682b6SSantosh Shilimkar child = add_child(1, "twl4030_pwrbutton", 8379e178620SFelipe Balbi NULL, 0, true, irq_base + 8 + 0, 0); 838b07682b6SSantosh Shilimkar if (IS_ERR(child)) 839b07682b6SSantosh Shilimkar return PTR_ERR(child); 840b07682b6SSantosh Shilimkar } 841b07682b6SSantosh Shilimkar 8424ae6df5eSPeter Ujfalusi if (twl_has_codec() && pdata->audio && twl_class_is_4030()) { 843d62abe56SMisael Lopez Cruz sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 844f0fba2adSLiam Girdwood child = add_child(sub_chip_id, "twl4030-audio", 8454ae6df5eSPeter Ujfalusi pdata->audio, sizeof(*pdata->audio), 846d62abe56SMisael Lopez Cruz false, 0, 0); 847d62abe56SMisael Lopez Cruz if (IS_ERR(child)) 848d62abe56SMisael Lopez Cruz return PTR_ERR(child); 849d62abe56SMisael Lopez Cruz } 850d62abe56SMisael Lopez Cruz 8519da66539SRajendra Nayak /* twl4030 regulators */ 8529da66539SRajendra Nayak if (twl_has_regulator() && twl_class_is_4030()) { 853521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, 854521d8ec3SGraeme Gregory features); 855b07682b6SSantosh Shilimkar if (IS_ERR(child)) 856b07682b6SSantosh Shilimkar return PTR_ERR(child); 857b07682b6SSantosh Shilimkar 858521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VIO, pdata->vio, 859521d8ec3SGraeme Gregory features); 860b07682b6SSantosh Shilimkar if (IS_ERR(child)) 861b07682b6SSantosh Shilimkar return PTR_ERR(child); 862b07682b6SSantosh Shilimkar 863521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, 864521d8ec3SGraeme Gregory features); 865b07682b6SSantosh Shilimkar if (IS_ERR(child)) 866b07682b6SSantosh Shilimkar return PTR_ERR(child); 867b07682b6SSantosh Shilimkar 868521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, 869521d8ec3SGraeme Gregory features); 870b07682b6SSantosh Shilimkar if (IS_ERR(child)) 871b07682b6SSantosh Shilimkar return PTR_ERR(child); 872b07682b6SSantosh Shilimkar 873521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, 874521d8ec3SGraeme Gregory features); 875b07682b6SSantosh Shilimkar if (IS_ERR(child)) 876b07682b6SSantosh Shilimkar return PTR_ERR(child); 877b07682b6SSantosh Shilimkar 878521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, 879521d8ec3SGraeme Gregory features); 880b07682b6SSantosh Shilimkar if (IS_ERR(child)) 881b07682b6SSantosh Shilimkar return PTR_ERR(child); 882b07682b6SSantosh Shilimkar 883b07682b6SSantosh Shilimkar child = add_regulator((features & TWL4030_VAUX2) 884b07682b6SSantosh Shilimkar ? TWL4030_REG_VAUX2_4030 885b07682b6SSantosh Shilimkar : TWL4030_REG_VAUX2, 886521d8ec3SGraeme Gregory pdata->vaux2, features); 887b07682b6SSantosh Shilimkar if (IS_ERR(child)) 888b07682b6SSantosh Shilimkar return PTR_ERR(child); 889b07682b6SSantosh Shilimkar 890521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, 891521d8ec3SGraeme Gregory features); 892b07682b6SSantosh Shilimkar if (IS_ERR(child)) 893b07682b6SSantosh Shilimkar return PTR_ERR(child); 894b07682b6SSantosh Shilimkar 895521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, 896521d8ec3SGraeme Gregory features); 897b07682b6SSantosh Shilimkar if (IS_ERR(child)) 898b07682b6SSantosh Shilimkar return PTR_ERR(child); 899b07682b6SSantosh Shilimkar 900521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, 901521d8ec3SGraeme Gregory features); 902b07682b6SSantosh Shilimkar if (IS_ERR(child)) 903b07682b6SSantosh Shilimkar return PTR_ERR(child); 904b07682b6SSantosh Shilimkar } 905b07682b6SSantosh Shilimkar 906b07682b6SSantosh Shilimkar /* maybe add LDOs that are omitted on cost-reduced parts */ 9079da66539SRajendra Nayak if (twl_has_regulator() && !(features & TPS_SUBSET) 9089da66539SRajendra Nayak && twl_class_is_4030()) { 909521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, 910521d8ec3SGraeme Gregory features); 911b07682b6SSantosh Shilimkar if (IS_ERR(child)) 912b07682b6SSantosh Shilimkar return PTR_ERR(child); 913b07682b6SSantosh Shilimkar 914521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, 915521d8ec3SGraeme Gregory features); 916b07682b6SSantosh Shilimkar if (IS_ERR(child)) 917b07682b6SSantosh Shilimkar return PTR_ERR(child); 918b07682b6SSantosh Shilimkar 919521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, 920521d8ec3SGraeme Gregory features); 921b07682b6SSantosh Shilimkar if (IS_ERR(child)) 922b07682b6SSantosh Shilimkar return PTR_ERR(child); 923b07682b6SSantosh Shilimkar 924521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, 925521d8ec3SGraeme Gregory features); 926b07682b6SSantosh Shilimkar if (IS_ERR(child)) 927b07682b6SSantosh Shilimkar return PTR_ERR(child); 928b07682b6SSantosh Shilimkar 929521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, 930521d8ec3SGraeme Gregory features); 931b07682b6SSantosh Shilimkar if (IS_ERR(child)) 932b07682b6SSantosh Shilimkar return PTR_ERR(child); 933b07682b6SSantosh Shilimkar 934521d8ec3SGraeme Gregory child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, 935521d8ec3SGraeme Gregory features); 936b07682b6SSantosh Shilimkar if (IS_ERR(child)) 937b07682b6SSantosh Shilimkar return PTR_ERR(child); 938b07682b6SSantosh Shilimkar } 939b07682b6SSantosh Shilimkar 9409da66539SRajendra Nayak /* twl6030 regulators */ 941521d8ec3SGraeme Gregory if (twl_has_regulator() && twl_class_is_6030() && 942521d8ec3SGraeme Gregory !(features & TWL6025_SUBCLASS)) { 94334a38440STero Kristo child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, 94434a38440STero Kristo features); 94534a38440STero Kristo if (IS_ERR(child)) 94634a38440STero Kristo return PTR_ERR(child); 94734a38440STero Kristo 94834a38440STero Kristo child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, 94934a38440STero Kristo features); 95034a38440STero Kristo if (IS_ERR(child)) 95134a38440STero Kristo return PTR_ERR(child); 95234a38440STero Kristo 95334a38440STero Kristo child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, 95434a38440STero Kristo features); 95534a38440STero Kristo if (IS_ERR(child)) 95634a38440STero Kristo return PTR_ERR(child); 95734a38440STero Kristo 95846eda3e9SPeter Ujfalusi child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, 95946eda3e9SPeter Ujfalusi features); 96046eda3e9SPeter Ujfalusi if (IS_ERR(child)) 96146eda3e9SPeter Ujfalusi return PTR_ERR(child); 96246eda3e9SPeter Ujfalusi 96346eda3e9SPeter Ujfalusi child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, 96446eda3e9SPeter Ujfalusi features); 96546eda3e9SPeter Ujfalusi if (IS_ERR(child)) 96646eda3e9SPeter Ujfalusi return PTR_ERR(child); 96746eda3e9SPeter Ujfalusi 968521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, 969521d8ec3SGraeme Gregory features); 970521d8ec3SGraeme Gregory if (IS_ERR(child)) 971521d8ec3SGraeme Gregory return PTR_ERR(child); 972521d8ec3SGraeme Gregory 973521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VPP, pdata->vpp, 974521d8ec3SGraeme Gregory features); 975521d8ec3SGraeme Gregory if (IS_ERR(child)) 976521d8ec3SGraeme Gregory return PTR_ERR(child); 977521d8ec3SGraeme Gregory 978521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, 979521d8ec3SGraeme Gregory features); 980521d8ec3SGraeme Gregory if (IS_ERR(child)) 981521d8ec3SGraeme Gregory return PTR_ERR(child); 982521d8ec3SGraeme Gregory 983521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, 984521d8ec3SGraeme Gregory features); 985521d8ec3SGraeme Gregory if (IS_ERR(child)) 986521d8ec3SGraeme Gregory return PTR_ERR(child); 987521d8ec3SGraeme Gregory 988521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, 989521d8ec3SGraeme Gregory features); 990521d8ec3SGraeme Gregory if (IS_ERR(child)) 991521d8ec3SGraeme Gregory return PTR_ERR(child); 992521d8ec3SGraeme Gregory 993521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, 994521d8ec3SGraeme Gregory features); 995521d8ec3SGraeme Gregory if (IS_ERR(child)) 996521d8ec3SGraeme Gregory return PTR_ERR(child); 997521d8ec3SGraeme Gregory 998521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, 999521d8ec3SGraeme Gregory features); 1000521d8ec3SGraeme Gregory if (IS_ERR(child)) 1001521d8ec3SGraeme Gregory return PTR_ERR(child); 1002521d8ec3SGraeme Gregory 1003521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, 1004521d8ec3SGraeme Gregory features); 1005521d8ec3SGraeme Gregory if (IS_ERR(child)) 1006521d8ec3SGraeme Gregory return PTR_ERR(child); 1007521d8ec3SGraeme Gregory 1008521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, 1009521d8ec3SGraeme Gregory features); 1010521d8ec3SGraeme Gregory if (IS_ERR(child)) 1011521d8ec3SGraeme Gregory return PTR_ERR(child); 1012521d8ec3SGraeme Gregory } 1013521d8ec3SGraeme Gregory 1014521d8ec3SGraeme Gregory /* 6030 and 6025 share this regulator */ 10159da66539SRajendra Nayak if (twl_has_regulator() && twl_class_is_6030()) { 1016521d8ec3SGraeme Gregory child = add_regulator(TWL6030_REG_VANA, pdata->vana, 1017521d8ec3SGraeme Gregory features); 1018521d8ec3SGraeme Gregory if (IS_ERR(child)) 1019521d8ec3SGraeme Gregory return PTR_ERR(child); 1020521d8ec3SGraeme Gregory } 1021521d8ec3SGraeme Gregory 1022521d8ec3SGraeme Gregory /* twl6025 regulators */ 1023521d8ec3SGraeme Gregory if (twl_has_regulator() && twl_class_is_6030() && 1024521d8ec3SGraeme Gregory (features & TWL6025_SUBCLASS)) { 1025521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, 1026521d8ec3SGraeme Gregory features); 10279da66539SRajendra Nayak if (IS_ERR(child)) 10289da66539SRajendra Nayak return PTR_ERR(child); 10299da66539SRajendra Nayak 1030521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, 1031521d8ec3SGraeme Gregory features); 10329da66539SRajendra Nayak if (IS_ERR(child)) 10339da66539SRajendra Nayak return PTR_ERR(child); 10349da66539SRajendra Nayak 1035521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, 1036521d8ec3SGraeme Gregory features); 10379da66539SRajendra Nayak if (IS_ERR(child)) 10389da66539SRajendra Nayak return PTR_ERR(child); 10399da66539SRajendra Nayak 1040521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, 1041521d8ec3SGraeme Gregory features); 10429da66539SRajendra Nayak if (IS_ERR(child)) 10439da66539SRajendra Nayak return PTR_ERR(child); 10449da66539SRajendra Nayak 1045521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, 1046521d8ec3SGraeme Gregory features); 10479da66539SRajendra Nayak if (IS_ERR(child)) 10489da66539SRajendra Nayak return PTR_ERR(child); 10499da66539SRajendra Nayak 1050521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, 1051521d8ec3SGraeme Gregory features); 10529da66539SRajendra Nayak if (IS_ERR(child)) 10539da66539SRajendra Nayak return PTR_ERR(child); 10549da66539SRajendra Nayak 1055521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, 1056521d8ec3SGraeme Gregory features); 10579da66539SRajendra Nayak if (IS_ERR(child)) 10589da66539SRajendra Nayak return PTR_ERR(child); 10599da66539SRajendra Nayak 1060521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, 1061521d8ec3SGraeme Gregory features); 10629da66539SRajendra Nayak if (IS_ERR(child)) 10639da66539SRajendra Nayak return PTR_ERR(child); 10649da66539SRajendra Nayak 1065521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, 1066521d8ec3SGraeme Gregory features); 10679da66539SRajendra Nayak if (IS_ERR(child)) 10689da66539SRajendra Nayak return PTR_ERR(child); 10698e6de4a3SBalaji T K 1070521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, 1071521d8ec3SGraeme Gregory features); 10728e6de4a3SBalaji T K if (IS_ERR(child)) 10738e6de4a3SBalaji T K return PTR_ERR(child); 1074521d8ec3SGraeme Gregory 1075521d8ec3SGraeme Gregory child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, 1076521d8ec3SGraeme Gregory features); 1077521d8ec3SGraeme Gregory if (IS_ERR(child)) 1078521d8ec3SGraeme Gregory return PTR_ERR(child); 1079521d8ec3SGraeme Gregory 10809da66539SRajendra Nayak } 10819da66539SRajendra Nayak 108211c39c4bSGrazvydas Ignotas if (twl_has_bci() && pdata->bci && 108311c39c4bSGrazvydas Ignotas !(features & (TPS_SUBSET | TWL5031))) { 108411c39c4bSGrazvydas Ignotas child = add_child(3, "twl4030_bci", 108511c39c4bSGrazvydas Ignotas pdata->bci, sizeof(*pdata->bci), false, 108611c39c4bSGrazvydas Ignotas /* irq0 = CHG_PRES, irq1 = BCI */ 10879e178620SFelipe Balbi irq_base + BCI_PRES_INTR_OFFSET, 10889e178620SFelipe Balbi irq_base + BCI_INTR_OFFSET); 108911c39c4bSGrazvydas Ignotas if (IS_ERR(child)) 109011c39c4bSGrazvydas Ignotas return PTR_ERR(child); 109111c39c4bSGrazvydas Ignotas } 109211c39c4bSGrazvydas Ignotas 1093b07682b6SSantosh Shilimkar return 0; 1094b07682b6SSantosh Shilimkar } 1095b07682b6SSantosh Shilimkar 1096b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 1097b07682b6SSantosh Shilimkar 1098b07682b6SSantosh Shilimkar /* 1099b07682b6SSantosh Shilimkar * These three functions initialize the on-chip clock framework, 1100b07682b6SSantosh Shilimkar * letting it generate the right frequencies for USB, MADC, and 1101b07682b6SSantosh Shilimkar * other purposes. 1102b07682b6SSantosh Shilimkar */ 1103b07682b6SSantosh Shilimkar static inline int __init protect_pm_master(void) 1104b07682b6SSantosh Shilimkar { 1105b07682b6SSantosh Shilimkar int e = 0; 1106b07682b6SSantosh Shilimkar 110749e6f87eSFelipe Balbi e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, 110849e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 1109b07682b6SSantosh Shilimkar return e; 1110b07682b6SSantosh Shilimkar } 1111b07682b6SSantosh Shilimkar 1112b07682b6SSantosh Shilimkar static inline int __init unprotect_pm_master(void) 1113b07682b6SSantosh Shilimkar { 1114b07682b6SSantosh Shilimkar int e = 0; 1115b07682b6SSantosh Shilimkar 111649e6f87eSFelipe Balbi e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 111749e6f87eSFelipe Balbi TWL4030_PM_MASTER_KEY_CFG1, 111849e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 111949e6f87eSFelipe Balbi e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 112049e6f87eSFelipe Balbi TWL4030_PM_MASTER_KEY_CFG2, 112149e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 112249e6f87eSFelipe Balbi 1123b07682b6SSantosh Shilimkar return e; 1124b07682b6SSantosh Shilimkar } 1125b07682b6SSantosh Shilimkar 1126b07682b6SSantosh Shilimkar static void clocks_init(struct device *dev, 1127b07682b6SSantosh Shilimkar struct twl4030_clock_init_data *clock) 1128b07682b6SSantosh Shilimkar { 1129b07682b6SSantosh Shilimkar int e = 0; 1130b07682b6SSantosh Shilimkar struct clk *osc; 1131b07682b6SSantosh Shilimkar u32 rate; 1132b07682b6SSantosh Shilimkar u8 ctrl = HFCLK_FREQ_26_MHZ; 1133b07682b6SSantosh Shilimkar 1134b07682b6SSantosh Shilimkar #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) 1135b07682b6SSantosh Shilimkar if (cpu_is_omap2430()) 1136b07682b6SSantosh Shilimkar osc = clk_get(dev, "osc_ck"); 1137b07682b6SSantosh Shilimkar else 1138b07682b6SSantosh Shilimkar osc = clk_get(dev, "osc_sys_ck"); 1139b07682b6SSantosh Shilimkar 1140b07682b6SSantosh Shilimkar if (IS_ERR(osc)) { 1141fc7b92fcSBalaji T K printk(KERN_WARNING "Skipping twl internal clock init and " 1142b07682b6SSantosh Shilimkar "using bootloader value (unknown osc rate)\n"); 1143b07682b6SSantosh Shilimkar return; 1144b07682b6SSantosh Shilimkar } 1145b07682b6SSantosh Shilimkar 1146b07682b6SSantosh Shilimkar rate = clk_get_rate(osc); 1147b07682b6SSantosh Shilimkar clk_put(osc); 1148b07682b6SSantosh Shilimkar 1149b07682b6SSantosh Shilimkar #else 1150b07682b6SSantosh Shilimkar /* REVISIT for non-OMAP systems, pass the clock rate from 1151b07682b6SSantosh Shilimkar * board init code, using platform_data. 1152b07682b6SSantosh Shilimkar */ 1153b07682b6SSantosh Shilimkar osc = ERR_PTR(-EIO); 1154b07682b6SSantosh Shilimkar 1155fc7b92fcSBalaji T K printk(KERN_WARNING "Skipping twl internal clock init and " 1156b07682b6SSantosh Shilimkar "using bootloader value (unknown osc rate)\n"); 1157b07682b6SSantosh Shilimkar 1158b07682b6SSantosh Shilimkar return; 1159b07682b6SSantosh Shilimkar #endif 1160b07682b6SSantosh Shilimkar 1161b07682b6SSantosh Shilimkar switch (rate) { 1162b07682b6SSantosh Shilimkar case 19200000: 1163b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_19p2_MHZ; 1164b07682b6SSantosh Shilimkar break; 1165b07682b6SSantosh Shilimkar case 26000000: 1166b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_26_MHZ; 1167b07682b6SSantosh Shilimkar break; 1168b07682b6SSantosh Shilimkar case 38400000: 1169b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_38p4_MHZ; 1170b07682b6SSantosh Shilimkar break; 1171b07682b6SSantosh Shilimkar } 1172b07682b6SSantosh Shilimkar 1173b07682b6SSantosh Shilimkar ctrl |= HIGH_PERF_SQ; 1174b07682b6SSantosh Shilimkar if (clock && clock->ck32k_lowpwr_enable) 1175b07682b6SSantosh Shilimkar ctrl |= CK32K_LOWPWR_EN; 1176b07682b6SSantosh Shilimkar 1177b07682b6SSantosh Shilimkar e |= unprotect_pm_master(); 1178b07682b6SSantosh Shilimkar /* effect->MADC+USB ck en */ 1179fc7b92fcSBalaji T K e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); 1180b07682b6SSantosh Shilimkar e |= protect_pm_master(); 1181b07682b6SSantosh Shilimkar 1182b07682b6SSantosh Shilimkar if (e < 0) 1183b07682b6SSantosh Shilimkar pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); 1184b07682b6SSantosh Shilimkar } 1185b07682b6SSantosh Shilimkar 1186b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 1187b07682b6SSantosh Shilimkar 1188b07682b6SSantosh Shilimkar 1189fc7b92fcSBalaji T K static int twl_remove(struct i2c_client *client) 1190b07682b6SSantosh Shilimkar { 1191364cedb2SPeter Ujfalusi unsigned i, num_slaves; 1192b07682b6SSantosh Shilimkar int status; 1193b07682b6SSantosh Shilimkar 1194364cedb2SPeter Ujfalusi if (twl_class_is_4030()) { 1195e8deb28cSBalaji T K status = twl4030_exit_irq(); 1196364cedb2SPeter Ujfalusi num_slaves = TWL_NUM_SLAVES; 1197364cedb2SPeter Ujfalusi } else { 1198e8deb28cSBalaji T K status = twl6030_exit_irq(); 1199364cedb2SPeter Ujfalusi num_slaves = TWL_NUM_SLAVES - 1; 1200364cedb2SPeter Ujfalusi } 1201e8deb28cSBalaji T K 1202b07682b6SSantosh Shilimkar if (status < 0) 1203b07682b6SSantosh Shilimkar return status; 1204b07682b6SSantosh Shilimkar 1205364cedb2SPeter Ujfalusi for (i = 0; i < num_slaves; i++) { 1206fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[i]; 1207b07682b6SSantosh Shilimkar 1208b07682b6SSantosh Shilimkar if (twl->client && twl->client != client) 1209b07682b6SSantosh Shilimkar i2c_unregister_device(twl->client); 1210fc7b92fcSBalaji T K twl_modules[i].client = NULL; 1211b07682b6SSantosh Shilimkar } 1212b07682b6SSantosh Shilimkar inuse = false; 1213b07682b6SSantosh Shilimkar return 0; 1214b07682b6SSantosh Shilimkar } 1215b07682b6SSantosh Shilimkar 1216ec1a07b3SBenoit Cousson /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ 12175b9cecd6SBryan Wu static int __devinit 1218fc7b92fcSBalaji T K twl_probe(struct i2c_client *client, const struct i2c_device_id *id) 1219b07682b6SSantosh Shilimkar { 1220b07682b6SSantosh Shilimkar struct twl4030_platform_data *pdata = client->dev.platform_data; 1221aeb5032bSBenoit Cousson struct device_node *node = client->dev.of_node; 1222ec1a07b3SBenoit Cousson int irq_base = 0; 1223ec1a07b3SBenoit Cousson int status; 1224364cedb2SPeter Ujfalusi unsigned i, num_slaves; 1225aeb5032bSBenoit Cousson 1226aeb5032bSBenoit Cousson if (node && !pdata) { 1227aeb5032bSBenoit Cousson /* 1228aeb5032bSBenoit Cousson * XXX: Temporary pdata until the information is correctly 1229aeb5032bSBenoit Cousson * retrieved by every TWL modules from DT. 1230aeb5032bSBenoit Cousson */ 1231aeb5032bSBenoit Cousson pdata = devm_kzalloc(&client->dev, 1232aeb5032bSBenoit Cousson sizeof(struct twl4030_platform_data), 1233aeb5032bSBenoit Cousson GFP_KERNEL); 1234aeb5032bSBenoit Cousson if (!pdata) 1235aeb5032bSBenoit Cousson return -ENOMEM; 1236aeb5032bSBenoit Cousson } 1237b07682b6SSantosh Shilimkar 1238b07682b6SSantosh Shilimkar if (!pdata) { 1239b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "no platform data?\n"); 1240b07682b6SSantosh Shilimkar return -EINVAL; 1241b07682b6SSantosh Shilimkar } 1242b07682b6SSantosh Shilimkar 1243b07682b6SSantosh Shilimkar if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { 1244b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "can't talk I2C?\n"); 1245b07682b6SSantosh Shilimkar return -EIO; 1246b07682b6SSantosh Shilimkar } 1247b07682b6SSantosh Shilimkar 1248b07682b6SSantosh Shilimkar if (inuse) { 1249b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "driver is already in use\n"); 1250b07682b6SSantosh Shilimkar return -EBUSY; 1251b07682b6SSantosh Shilimkar } 1252b07682b6SSantosh Shilimkar 1253364cedb2SPeter Ujfalusi if ((id->driver_data) & TWL6030_CLASS) { 1254364cedb2SPeter Ujfalusi twl_id = TWL6030_CLASS_ID; 1255364cedb2SPeter Ujfalusi twl_map = &twl6030_map[0]; 1256364cedb2SPeter Ujfalusi num_slaves = TWL_NUM_SLAVES - 1; 1257364cedb2SPeter Ujfalusi } else { 1258364cedb2SPeter Ujfalusi twl_id = TWL4030_CLASS_ID; 1259364cedb2SPeter Ujfalusi twl_map = &twl4030_map[0]; 1260364cedb2SPeter Ujfalusi num_slaves = TWL_NUM_SLAVES; 1261364cedb2SPeter Ujfalusi } 1262364cedb2SPeter Ujfalusi 1263364cedb2SPeter Ujfalusi for (i = 0; i < num_slaves; i++) { 1264fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[i]; 1265b07682b6SSantosh Shilimkar 1266b07682b6SSantosh Shilimkar twl->address = client->addr + i; 1267ec1a07b3SBenoit Cousson if (i == 0) { 1268b07682b6SSantosh Shilimkar twl->client = client; 1269ec1a07b3SBenoit Cousson } else { 1270b07682b6SSantosh Shilimkar twl->client = i2c_new_dummy(client->adapter, 1271b07682b6SSantosh Shilimkar twl->address); 1272b07682b6SSantosh Shilimkar if (!twl->client) { 1273b07682b6SSantosh Shilimkar dev_err(&client->dev, 1274b07682b6SSantosh Shilimkar "can't attach client %d\n", i); 1275b07682b6SSantosh Shilimkar status = -ENOMEM; 1276b07682b6SSantosh Shilimkar goto fail; 1277b07682b6SSantosh Shilimkar } 1278b07682b6SSantosh Shilimkar } 1279b07682b6SSantosh Shilimkar mutex_init(&twl->xfer_lock); 1280b07682b6SSantosh Shilimkar } 1281ec1a07b3SBenoit Cousson 1282b07682b6SSantosh Shilimkar inuse = true; 1283b07682b6SSantosh Shilimkar 1284b07682b6SSantosh Shilimkar /* setup clock framework */ 1285b07682b6SSantosh Shilimkar clocks_init(&client->dev, pdata->clock); 1286b07682b6SSantosh Shilimkar 1287ca972d13SLesly A M /* read TWL IDCODE Register */ 1288ca972d13SLesly A M if (twl_id == TWL4030_CLASS_ID) { 1289ec1a07b3SBenoit Cousson status = twl_read_idcode_register(); 1290ec1a07b3SBenoit Cousson WARN(status < 0, "Error: reading twl_idcode register value\n"); 1291ca972d13SLesly A M } 1292ca972d13SLesly A M 1293b07682b6SSantosh Shilimkar /* load power event scripts */ 1294b07682b6SSantosh Shilimkar if (twl_has_power() && pdata->power) 1295b07682b6SSantosh Shilimkar twl4030_power_init(pdata->power); 1296b07682b6SSantosh Shilimkar 1297b07682b6SSantosh Shilimkar /* Maybe init the T2 Interrupt subsystem */ 12989e178620SFelipe Balbi if (client->irq) { 1299e8deb28cSBalaji T K if (twl_class_is_4030()) { 1300e8deb28cSBalaji T K twl4030_init_chip_irq(id->name); 130178518ffaSBenoit Cousson irq_base = twl4030_init_irq(&client->dev, client->irq); 1302e8deb28cSBalaji T K } else { 130378518ffaSBenoit Cousson irq_base = twl6030_init_irq(&client->dev, client->irq); 1304e8deb28cSBalaji T K } 1305e8deb28cSBalaji T K 130678518ffaSBenoit Cousson if (irq_base < 0) { 130778518ffaSBenoit Cousson status = irq_base; 1308b07682b6SSantosh Shilimkar goto fail; 1309b07682b6SSantosh Shilimkar } 131078518ffaSBenoit Cousson } 1311b07682b6SSantosh Shilimkar 1312ec1a07b3SBenoit Cousson /* 1313ec1a07b3SBenoit Cousson * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. 1314a29aaf55SMoiz Sonasath * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, 1315a29aaf55SMoiz Sonasath * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. 1316a29aaf55SMoiz Sonasath */ 1317a29aaf55SMoiz Sonasath if (twl_class_is_4030()) { 1318ec1a07b3SBenoit Cousson u8 temp; 1319ec1a07b3SBenoit Cousson 1320a29aaf55SMoiz Sonasath twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); 1321a29aaf55SMoiz Sonasath temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ 1322a29aaf55SMoiz Sonasath I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); 1323a29aaf55SMoiz Sonasath twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); 1324a29aaf55SMoiz Sonasath } 1325a29aaf55SMoiz Sonasath 1326964dba28SGrant Likely status = -ENODEV; 1327aeb5032bSBenoit Cousson if (node) 1328aeb5032bSBenoit Cousson status = of_platform_populate(node, NULL, NULL, &client->dev); 1329964dba28SGrant Likely if (status) 13309e178620SFelipe Balbi status = add_children(pdata, irq_base, id->driver_data); 1331aeb5032bSBenoit Cousson 1332b07682b6SSantosh Shilimkar fail: 1333b07682b6SSantosh Shilimkar if (status < 0) 1334fc7b92fcSBalaji T K twl_remove(client); 1335ec1a07b3SBenoit Cousson 1336b07682b6SSantosh Shilimkar return status; 1337b07682b6SSantosh Shilimkar } 1338b07682b6SSantosh Shilimkar 1339fc7b92fcSBalaji T K static const struct i2c_device_id twl_ids[] = { 1340b07682b6SSantosh Shilimkar { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ 1341b07682b6SSantosh Shilimkar { "twl5030", 0 }, /* T2 updated */ 1342b07682b6SSantosh Shilimkar { "twl5031", TWL5031 }, /* TWL5030 updated */ 1343b07682b6SSantosh Shilimkar { "tps65950", 0 }, /* catalog version of twl5030 */ 1344b07682b6SSantosh Shilimkar { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ 1345b07682b6SSantosh Shilimkar { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ 134659dead5aSOleg Drokin { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED 134759dead5aSOleg Drokin and vibrator. Charger in USB module*/ 1348e8deb28cSBalaji T K { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1349521d8ec3SGraeme Gregory { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ 1350b07682b6SSantosh Shilimkar { /* end of list */ }, 1351b07682b6SSantosh Shilimkar }; 1352fc7b92fcSBalaji T K MODULE_DEVICE_TABLE(i2c, twl_ids); 1353b07682b6SSantosh Shilimkar 1354b07682b6SSantosh Shilimkar /* One Client Driver , 4 Clients */ 1355fc7b92fcSBalaji T K static struct i2c_driver twl_driver = { 1356b07682b6SSantosh Shilimkar .driver.name = DRIVER_NAME, 1357fc7b92fcSBalaji T K .id_table = twl_ids, 1358fc7b92fcSBalaji T K .probe = twl_probe, 1359fc7b92fcSBalaji T K .remove = twl_remove, 1360b07682b6SSantosh Shilimkar }; 1361b07682b6SSantosh Shilimkar 1362fc7b92fcSBalaji T K static int __init twl_init(void) 1363b07682b6SSantosh Shilimkar { 1364fc7b92fcSBalaji T K return i2c_add_driver(&twl_driver); 1365b07682b6SSantosh Shilimkar } 1366fc7b92fcSBalaji T K subsys_initcall(twl_init); 1367b07682b6SSantosh Shilimkar 1368fc7b92fcSBalaji T K static void __exit twl_exit(void) 1369b07682b6SSantosh Shilimkar { 1370fc7b92fcSBalaji T K i2c_del_driver(&twl_driver); 1371b07682b6SSantosh Shilimkar } 1372fc7b92fcSBalaji T K module_exit(twl_exit); 1373b07682b6SSantosh Shilimkar 1374b07682b6SSantosh Shilimkar MODULE_AUTHOR("Texas Instruments, Inc."); 1375fc7b92fcSBalaji T K MODULE_DESCRIPTION("I2C Core interface for TWL"); 1376b07682b6SSantosh Shilimkar MODULE_LICENSE("GPL"); 1377