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> 33b07682b6SSantosh Shilimkar #include <linux/platform_device.h> 34b07682b6SSantosh Shilimkar #include <linux/clk.h> 35b07682b6SSantosh Shilimkar #include <linux/err.h> 36b07682b6SSantosh Shilimkar 37b07682b6SSantosh Shilimkar #include <linux/regulator/machine.h> 38b07682b6SSantosh Shilimkar 39b07682b6SSantosh Shilimkar #include <linux/i2c.h> 40b07682b6SSantosh Shilimkar #include <linux/i2c/twl.h> 41b07682b6SSantosh Shilimkar 42b07682b6SSantosh Shilimkar #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) 43b07682b6SSantosh Shilimkar #include <plat/cpu.h> 44b07682b6SSantosh Shilimkar #endif 45b07682b6SSantosh Shilimkar 46b07682b6SSantosh Shilimkar /* 47b07682b6SSantosh Shilimkar * The TWL4030 "Triton 2" is one of a family of a multi-function "Power 48b07682b6SSantosh Shilimkar * Management and System Companion Device" chips originally designed for 49b07682b6SSantosh Shilimkar * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, 50b07682b6SSantosh Shilimkar * often at around 3 Mbit/sec, including for interrupt handling. 51b07682b6SSantosh Shilimkar * 52b07682b6SSantosh Shilimkar * This driver core provides genirq support for the interrupts emitted, 53b07682b6SSantosh Shilimkar * by the various modules, and exports register access primitives. 54b07682b6SSantosh Shilimkar * 55b07682b6SSantosh Shilimkar * FIXME this driver currently requires use of the first interrupt line 56b07682b6SSantosh Shilimkar * (and associated registers). 57b07682b6SSantosh Shilimkar */ 58b07682b6SSantosh Shilimkar 59fc7b92fcSBalaji T K #define DRIVER_NAME "twl" 60b07682b6SSantosh Shilimkar 61b07682b6SSantosh Shilimkar #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE) 62b07682b6SSantosh Shilimkar #define twl_has_keypad() true 63b07682b6SSantosh Shilimkar #else 64b07682b6SSantosh Shilimkar #define twl_has_keypad() false 65b07682b6SSantosh Shilimkar #endif 66b07682b6SSantosh Shilimkar 67b07682b6SSantosh Shilimkar #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE) 68b07682b6SSantosh Shilimkar #define twl_has_gpio() true 69b07682b6SSantosh Shilimkar #else 70b07682b6SSantosh Shilimkar #define twl_has_gpio() false 71b07682b6SSantosh Shilimkar #endif 72b07682b6SSantosh Shilimkar 73b07682b6SSantosh Shilimkar #if defined(CONFIG_REGULATOR_TWL4030) \ 74b07682b6SSantosh Shilimkar || defined(CONFIG_REGULATOR_TWL4030_MODULE) 75b07682b6SSantosh Shilimkar #define twl_has_regulator() true 76b07682b6SSantosh Shilimkar #else 77b07682b6SSantosh Shilimkar #define twl_has_regulator() false 78b07682b6SSantosh Shilimkar #endif 79b07682b6SSantosh Shilimkar 80b07682b6SSantosh Shilimkar #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE) 81b07682b6SSantosh Shilimkar #define twl_has_madc() true 82b07682b6SSantosh Shilimkar #else 83b07682b6SSantosh Shilimkar #define twl_has_madc() false 84b07682b6SSantosh Shilimkar #endif 85b07682b6SSantosh Shilimkar 86b07682b6SSantosh Shilimkar #ifdef CONFIG_TWL4030_POWER 87b07682b6SSantosh Shilimkar #define twl_has_power() true 88b07682b6SSantosh Shilimkar #else 89b07682b6SSantosh Shilimkar #define twl_has_power() false 90b07682b6SSantosh Shilimkar #endif 91b07682b6SSantosh Shilimkar 92b07682b6SSantosh Shilimkar #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE) 93b07682b6SSantosh Shilimkar #define twl_has_rtc() true 94b07682b6SSantosh Shilimkar #else 95b07682b6SSantosh Shilimkar #define twl_has_rtc() false 96b07682b6SSantosh Shilimkar #endif 97b07682b6SSantosh Shilimkar 98e70357e3SHema HK #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\ 99e70357e3SHema HK defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE) 100b07682b6SSantosh Shilimkar #define twl_has_usb() true 101b07682b6SSantosh Shilimkar #else 102b07682b6SSantosh Shilimkar #define twl_has_usb() false 103b07682b6SSantosh Shilimkar #endif 104b07682b6SSantosh Shilimkar 105b07682b6SSantosh Shilimkar #if defined(CONFIG_TWL4030_WATCHDOG) || \ 106b07682b6SSantosh Shilimkar defined(CONFIG_TWL4030_WATCHDOG_MODULE) 107b07682b6SSantosh Shilimkar #define twl_has_watchdog() true 108b07682b6SSantosh Shilimkar #else 109b07682b6SSantosh Shilimkar #define twl_has_watchdog() false 110b07682b6SSantosh Shilimkar #endif 111b07682b6SSantosh Shilimkar 112d62abe56SMisael Lopez Cruz #if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\ 1136a1c7b7eSOlaya, Margarita defined(CONFIG_SND_SOC_TWL6040) || defined(CONFIG_SND_SOC_TWL6040_MODULE) 114b07682b6SSantosh Shilimkar #define twl_has_codec() true 115b07682b6SSantosh Shilimkar #else 116b07682b6SSantosh Shilimkar #define twl_has_codec() false 117b07682b6SSantosh Shilimkar #endif 118b07682b6SSantosh Shilimkar 11911c39c4bSGrazvydas Ignotas #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE) 12011c39c4bSGrazvydas Ignotas #define twl_has_bci() true 12111c39c4bSGrazvydas Ignotas #else 12211c39c4bSGrazvydas Ignotas #define twl_has_bci() false 12311c39c4bSGrazvydas Ignotas #endif 12411c39c4bSGrazvydas Ignotas 125b07682b6SSantosh Shilimkar /* Triton Core internal information (BEGIN) */ 126b07682b6SSantosh Shilimkar 127b07682b6SSantosh Shilimkar /* Last - for index max*/ 128b07682b6SSantosh Shilimkar #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG 129b07682b6SSantosh Shilimkar 130fc7b92fcSBalaji T K #define TWL_NUM_SLAVES 4 131b07682b6SSantosh Shilimkar 132b07682b6SSantosh Shilimkar #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \ 13314e5c82cSEduardo Valentin || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE) 134b07682b6SSantosh Shilimkar #define twl_has_pwrbutton() true 135b07682b6SSantosh Shilimkar #else 136b07682b6SSantosh Shilimkar #define twl_has_pwrbutton() false 137b07682b6SSantosh Shilimkar #endif 138b07682b6SSantosh Shilimkar 139fc7b92fcSBalaji T K #define SUB_CHIP_ID0 0 140fc7b92fcSBalaji T K #define SUB_CHIP_ID1 1 141fc7b92fcSBalaji T K #define SUB_CHIP_ID2 2 142fc7b92fcSBalaji T K #define SUB_CHIP_ID3 3 143fc7b92fcSBalaji T K 144fc7b92fcSBalaji T K #define TWL_MODULE_LAST TWL4030_MODULE_LAST 145fc7b92fcSBalaji T K 146b07682b6SSantosh Shilimkar /* Base Address defns for twl4030_map[] */ 147b07682b6SSantosh Shilimkar 148b07682b6SSantosh Shilimkar /* subchip/slave 0 - USB ID */ 149b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_USB 0x0000 150b07682b6SSantosh Shilimkar 151b07682b6SSantosh Shilimkar /* subchip/slave 1 - AUD ID */ 152b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 153b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_GPIO 0x0098 154b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_INTBR 0x0085 155b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PIH 0x0080 156b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_TEST 0x004C 157b07682b6SSantosh Shilimkar 158b07682b6SSantosh Shilimkar /* subchip/slave 2 - AUX ID */ 159b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_INTERRUPTS 0x00B9 160b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_LED 0x00EE 161b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_MADC 0x0000 162b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 163b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PRECHARGE 0x00AA 164b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWM0 0x00F8 165b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWM1 0x00FB 166b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWMA 0x00EF 167b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PWMB 0x00F1 168b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_KEYPAD 0x00D2 169b07682b6SSantosh Shilimkar 170b07682b6SSantosh Shilimkar #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ 171b07682b6SSantosh Shilimkar #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's 172b07682b6SSantosh Shilimkar one */ 173b07682b6SSantosh Shilimkar 174b07682b6SSantosh Shilimkar /* subchip/slave 3 - POWER ID */ 175b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_BACKUP 0x0014 176b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_INT 0x002E 177b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PM_MASTER 0x0036 178b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_PM_RECEIVER 0x005B 179b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_RTC 0x001C 180b07682b6SSantosh Shilimkar #define TWL4030_BASEADD_SECURED_REG 0x0000 181b07682b6SSantosh Shilimkar 182b07682b6SSantosh Shilimkar /* Triton Core internal information (END) */ 183b07682b6SSantosh Shilimkar 184b07682b6SSantosh Shilimkar 185e8deb28cSBalaji T K /* subchip/slave 0 0x48 - POWER */ 186e8deb28cSBalaji T K #define TWL6030_BASEADD_RTC 0x0000 187e8deb28cSBalaji T K #define TWL6030_BASEADD_MEM 0x0017 188e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_MASTER 0x001F 189e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ 190e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_MISC 0x00E2 191e8deb28cSBalaji T K #define TWL6030_BASEADD_PM_PUPD 0x00F0 192e8deb28cSBalaji T K 193e8deb28cSBalaji T K /* subchip/slave 1 0x49 - FEATURE */ 194e8deb28cSBalaji T K #define TWL6030_BASEADD_USB 0x0000 195e8deb28cSBalaji T K #define TWL6030_BASEADD_GPADC_CTRL 0x002E 196e8deb28cSBalaji T K #define TWL6030_BASEADD_AUX 0x0090 197e8deb28cSBalaji T K #define TWL6030_BASEADD_PWM 0x00BA 198e8deb28cSBalaji T K #define TWL6030_BASEADD_GASGAUGE 0x00C0 199e8deb28cSBalaji T K #define TWL6030_BASEADD_PIH 0x00D0 200e8deb28cSBalaji T K #define TWL6030_BASEADD_CHARGER 0x00E0 201e8deb28cSBalaji T K 202e8deb28cSBalaji T K /* subchip/slave 2 0x4A - DFT */ 203e8deb28cSBalaji T K #define TWL6030_BASEADD_DIEID 0x00C0 204e8deb28cSBalaji T K 205e8deb28cSBalaji T K /* subchip/slave 3 0x4B - AUDIO */ 206e8deb28cSBalaji T K #define TWL6030_BASEADD_AUDIO 0x0000 207e8deb28cSBalaji T K #define TWL6030_BASEADD_RSV 0x0000 208fa0d9762SBalaji T K #define TWL6030_BASEADD_ZERO 0x0000 209e8deb28cSBalaji T K 210b07682b6SSantosh Shilimkar /* Few power values */ 211b07682b6SSantosh Shilimkar #define R_CFG_BOOT 0x05 212b07682b6SSantosh Shilimkar 213b07682b6SSantosh Shilimkar /* some fields in R_CFG_BOOT */ 214b07682b6SSantosh Shilimkar #define HFCLK_FREQ_19p2_MHZ (1 << 0) 215b07682b6SSantosh Shilimkar #define HFCLK_FREQ_26_MHZ (2 << 0) 216b07682b6SSantosh Shilimkar #define HFCLK_FREQ_38p4_MHZ (3 << 0) 217b07682b6SSantosh Shilimkar #define HIGH_PERF_SQ (1 << 3) 218b07682b6SSantosh Shilimkar #define CK32K_LOWPWR_EN (1 << 7) 219b07682b6SSantosh Shilimkar 220b07682b6SSantosh Shilimkar 221b07682b6SSantosh Shilimkar /* chip-specific feature flags, for i2c_device_id.driver_data */ 222b07682b6SSantosh Shilimkar #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */ 223b07682b6SSantosh Shilimkar #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */ 224b07682b6SSantosh Shilimkar #define TWL5031 BIT(2) /* twl5031 has different registers */ 225e8deb28cSBalaji T K #define TWL6030_CLASS BIT(3) /* TWL6030 class */ 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 257b07682b6SSantosh Shilimkar /* mapping the module id to slave id and base address */ 258fc7b92fcSBalaji T K struct twl_mapping { 259b07682b6SSantosh Shilimkar unsigned char sid; /* Slave ID */ 260b07682b6SSantosh Shilimkar unsigned char base; /* base address */ 261b07682b6SSantosh Shilimkar }; 2622cfcce18SG, Manjunath Kondaiah static struct twl_mapping *twl_map; 263b07682b6SSantosh Shilimkar 264fc7b92fcSBalaji T K static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { 265b07682b6SSantosh Shilimkar /* 266b07682b6SSantosh Shilimkar * NOTE: don't change this table without updating the 267e8deb28cSBalaji T K * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 268b07682b6SSantosh Shilimkar * so they continue to match the order in this table. 269b07682b6SSantosh Shilimkar */ 270b07682b6SSantosh Shilimkar 271b07682b6SSantosh Shilimkar { 0, TWL4030_BASEADD_USB }, 272b07682b6SSantosh Shilimkar 273b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_AUDIO_VOICE }, 274b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_GPIO }, 275b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_INTBR }, 276b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_PIH }, 277b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_TEST }, 278b07682b6SSantosh Shilimkar 279b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_KEYPAD }, 280b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_MADC }, 281b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_INTERRUPTS }, 282b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_LED }, 283b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_MAIN_CHARGE }, 284b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PRECHARGE }, 285b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWM0 }, 286b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWM1 }, 287b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWMA }, 288b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWMB }, 289b07682b6SSantosh Shilimkar { 2, TWL5031_BASEADD_ACCESSORY }, 290b07682b6SSantosh Shilimkar { 2, TWL5031_BASEADD_INTERRUPTS }, 291b07682b6SSantosh Shilimkar 292b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_BACKUP }, 293b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_INT }, 294b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_PM_MASTER }, 295b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_PM_RECEIVER }, 296b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_RTC }, 297b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_SECURED_REG }, 298b07682b6SSantosh Shilimkar }; 299b07682b6SSantosh Shilimkar 300e8deb28cSBalaji T K static struct twl_mapping twl6030_map[] = { 301e8deb28cSBalaji T K /* 302e8deb28cSBalaji T K * NOTE: don't change this table without updating the 303e8deb28cSBalaji T K * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 304e8deb28cSBalaji T K * so they continue to match the order in this table. 305e8deb28cSBalaji T K */ 306e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, 307e8deb28cSBalaji T K { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO }, 308e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, 309e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 310e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, 311e8deb28cSBalaji T K 312e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 313e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 314e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, 315e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 316e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 317e8deb28cSBalaji T K 318e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, 319e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, 320e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, 321fa0d9762SBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, 322fa0d9762SBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, 323e8deb28cSBalaji T K 324fa0d9762SBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 325fa0d9762SBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 326e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 327e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 328e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 329e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, 330e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, 331e8deb28cSBalaji T K 332e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, 333e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, 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 } 363e8deb28cSBalaji T K sid = twl_map[mod_no].sid; 364fc7b92fcSBalaji T K twl = &twl_modules[sid]; 365b07682b6SSantosh Shilimkar 366b07682b6SSantosh Shilimkar if (unlikely(!inuse)) { 367b07682b6SSantosh Shilimkar pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); 368b07682b6SSantosh Shilimkar return -EPERM; 369b07682b6SSantosh Shilimkar } 370b07682b6SSantosh Shilimkar mutex_lock(&twl->xfer_lock); 371b07682b6SSantosh Shilimkar /* 372b07682b6SSantosh Shilimkar * [MSG1]: fill the register address data 373b07682b6SSantosh Shilimkar * fill the data Tx buffer 374b07682b6SSantosh Shilimkar */ 375b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[0]; 376b07682b6SSantosh Shilimkar msg->addr = twl->address; 377b07682b6SSantosh Shilimkar msg->len = num_bytes + 1; 378b07682b6SSantosh Shilimkar msg->flags = 0; 379b07682b6SSantosh Shilimkar msg->buf = value; 380b07682b6SSantosh Shilimkar /* over write the first byte of buffer with the register address */ 381e8deb28cSBalaji T K *value = twl_map[mod_no].base + reg; 382b07682b6SSantosh Shilimkar ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); 383b07682b6SSantosh Shilimkar mutex_unlock(&twl->xfer_lock); 384b07682b6SSantosh Shilimkar 385b07682b6SSantosh Shilimkar /* i2c_transfer returns number of messages transferred */ 386b07682b6SSantosh Shilimkar if (ret != 1) { 387b07682b6SSantosh Shilimkar pr_err("%s: i2c_write failed to transfer all messages\n", 388b07682b6SSantosh Shilimkar DRIVER_NAME); 389b07682b6SSantosh Shilimkar if (ret < 0) 390b07682b6SSantosh Shilimkar return ret; 391b07682b6SSantosh Shilimkar else 392b07682b6SSantosh Shilimkar return -EIO; 393b07682b6SSantosh Shilimkar } else { 394b07682b6SSantosh Shilimkar return 0; 395b07682b6SSantosh Shilimkar } 396b07682b6SSantosh Shilimkar } 397fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_write); 398b07682b6SSantosh Shilimkar 399b07682b6SSantosh Shilimkar /** 400fc7b92fcSBalaji T K * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 401b07682b6SSantosh Shilimkar * @mod_no: module number 402b07682b6SSantosh Shilimkar * @value: an array of num_bytes containing data to be read 403b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 404b07682b6SSantosh Shilimkar * @num_bytes: number of bytes to transfer 405b07682b6SSantosh Shilimkar * 406b07682b6SSantosh Shilimkar * Returns result of operation - num_bytes is success else failure. 407b07682b6SSantosh Shilimkar */ 408fc7b92fcSBalaji T K int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 409b07682b6SSantosh Shilimkar { 410b07682b6SSantosh Shilimkar int ret; 411b07682b6SSantosh Shilimkar u8 val; 412b07682b6SSantosh Shilimkar int sid; 413fc7b92fcSBalaji T K struct twl_client *twl; 414b07682b6SSantosh Shilimkar struct i2c_msg *msg; 415b07682b6SSantosh Shilimkar 416fc7b92fcSBalaji T K if (unlikely(mod_no > TWL_MODULE_LAST)) { 417b07682b6SSantosh Shilimkar pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 418b07682b6SSantosh Shilimkar return -EPERM; 419b07682b6SSantosh Shilimkar } 420e8deb28cSBalaji T K sid = twl_map[mod_no].sid; 421fc7b92fcSBalaji T K twl = &twl_modules[sid]; 422b07682b6SSantosh Shilimkar 423b07682b6SSantosh Shilimkar if (unlikely(!inuse)) { 424b07682b6SSantosh Shilimkar pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); 425b07682b6SSantosh Shilimkar return -EPERM; 426b07682b6SSantosh Shilimkar } 427b07682b6SSantosh Shilimkar mutex_lock(&twl->xfer_lock); 428b07682b6SSantosh Shilimkar /* [MSG1] fill the register address data */ 429b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[0]; 430b07682b6SSantosh Shilimkar msg->addr = twl->address; 431b07682b6SSantosh Shilimkar msg->len = 1; 432b07682b6SSantosh Shilimkar msg->flags = 0; /* Read the register value */ 433e8deb28cSBalaji T K val = twl_map[mod_no].base + reg; 434b07682b6SSantosh Shilimkar msg->buf = &val; 435b07682b6SSantosh Shilimkar /* [MSG2] fill the data rx buffer */ 436b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[1]; 437b07682b6SSantosh Shilimkar msg->addr = twl->address; 438b07682b6SSantosh Shilimkar msg->flags = I2C_M_RD; /* Read the register value */ 439b07682b6SSantosh Shilimkar msg->len = num_bytes; /* only n bytes */ 440b07682b6SSantosh Shilimkar msg->buf = value; 441b07682b6SSantosh Shilimkar ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); 442b07682b6SSantosh Shilimkar mutex_unlock(&twl->xfer_lock); 443b07682b6SSantosh Shilimkar 444b07682b6SSantosh Shilimkar /* i2c_transfer returns number of messages transferred */ 445b07682b6SSantosh Shilimkar if (ret != 2) { 446b07682b6SSantosh Shilimkar pr_err("%s: i2c_read failed to transfer all messages\n", 447b07682b6SSantosh Shilimkar DRIVER_NAME); 448b07682b6SSantosh Shilimkar if (ret < 0) 449b07682b6SSantosh Shilimkar return ret; 450b07682b6SSantosh Shilimkar else 451b07682b6SSantosh Shilimkar return -EIO; 452b07682b6SSantosh Shilimkar } else { 453b07682b6SSantosh Shilimkar return 0; 454b07682b6SSantosh Shilimkar } 455b07682b6SSantosh Shilimkar } 456fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_read); 457b07682b6SSantosh Shilimkar 458b07682b6SSantosh Shilimkar /** 459fc7b92fcSBalaji T K * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 460b07682b6SSantosh Shilimkar * @mod_no: module number 461b07682b6SSantosh Shilimkar * @value: the value to be written 8 bit 462b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 463b07682b6SSantosh Shilimkar * 464b07682b6SSantosh Shilimkar * Returns result of operation - 0 is success 465b07682b6SSantosh Shilimkar */ 466fc7b92fcSBalaji T K int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) 467b07682b6SSantosh Shilimkar { 468b07682b6SSantosh Shilimkar 469b07682b6SSantosh Shilimkar /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ 470b07682b6SSantosh Shilimkar u8 temp_buffer[2] = { 0 }; 471b07682b6SSantosh Shilimkar /* offset 1 contains the data */ 472b07682b6SSantosh Shilimkar temp_buffer[1] = value; 473fc7b92fcSBalaji T K return twl_i2c_write(mod_no, temp_buffer, reg, 1); 474b07682b6SSantosh Shilimkar } 475fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_write_u8); 476b07682b6SSantosh Shilimkar 477b07682b6SSantosh Shilimkar /** 478fc7b92fcSBalaji T K * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 479b07682b6SSantosh Shilimkar * @mod_no: module number 480b07682b6SSantosh Shilimkar * @value: the value read 8 bit 481b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 482b07682b6SSantosh Shilimkar * 483b07682b6SSantosh Shilimkar * Returns result of operation - 0 is success 484b07682b6SSantosh Shilimkar */ 485fc7b92fcSBalaji T K int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 486b07682b6SSantosh Shilimkar { 487fc7b92fcSBalaji T K return twl_i2c_read(mod_no, value, reg, 1); 488b07682b6SSantosh Shilimkar } 489fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_read_u8); 490b07682b6SSantosh Shilimkar 491b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 492b07682b6SSantosh Shilimkar 493ca972d13SLesly A M /** 494ca972d13SLesly A M * twl_read_idcode_register - API to read the IDCODE register. 495ca972d13SLesly A M * 496ca972d13SLesly A M * Unlocks the IDCODE register and read the 32 bit value. 497ca972d13SLesly A M */ 498ca972d13SLesly A M static int twl_read_idcode_register(void) 499ca972d13SLesly A M { 500ca972d13SLesly A M int err; 501ca972d13SLesly A M 502ca972d13SLesly A M err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, 503ca972d13SLesly A M REG_UNLOCK_TEST_REG); 504ca972d13SLesly A M if (err) { 505ca972d13SLesly A M pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); 506ca972d13SLesly A M goto fail; 507ca972d13SLesly A M } 508ca972d13SLesly A M 509ca972d13SLesly A M err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), 510ca972d13SLesly A M REG_IDCODE_7_0, 4); 511ca972d13SLesly A M if (err) { 512ca972d13SLesly A M pr_err("TWL4030: unable to read IDCODE -%d\n", err); 513ca972d13SLesly A M goto fail; 514ca972d13SLesly A M } 515ca972d13SLesly A M 516ca972d13SLesly A M err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); 517ca972d13SLesly A M if (err) 518ca972d13SLesly A M pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); 519ca972d13SLesly A M fail: 520ca972d13SLesly A M return err; 521ca972d13SLesly A M } 522ca972d13SLesly A M 523ca972d13SLesly A M /** 524ca972d13SLesly A M * twl_get_type - API to get TWL Si type. 525ca972d13SLesly A M * 526ca972d13SLesly A M * Api to get the TWL Si type from IDCODE value. 527ca972d13SLesly A M */ 528ca972d13SLesly A M int twl_get_type(void) 529ca972d13SLesly A M { 530ca972d13SLesly A M return TWL_SIL_TYPE(twl_idcode); 531ca972d13SLesly A M } 532ca972d13SLesly A M EXPORT_SYMBOL_GPL(twl_get_type); 533ca972d13SLesly A M 534ca972d13SLesly A M /** 535ca972d13SLesly A M * twl_get_version - API to get TWL Si version. 536ca972d13SLesly A M * 537ca972d13SLesly A M * Api to get the TWL Si version from IDCODE value. 538ca972d13SLesly A M */ 539ca972d13SLesly A M int twl_get_version(void) 540ca972d13SLesly A M { 541ca972d13SLesly A M return TWL_SIL_REV(twl_idcode); 542ca972d13SLesly A M } 543ca972d13SLesly A M EXPORT_SYMBOL_GPL(twl_get_version); 544ca972d13SLesly A M 545b07682b6SSantosh Shilimkar static struct device * 546b07682b6SSantosh Shilimkar add_numbered_child(unsigned chip, const char *name, int num, 547b07682b6SSantosh Shilimkar void *pdata, unsigned pdata_len, 548b07682b6SSantosh Shilimkar bool can_wakeup, int irq0, int irq1) 549b07682b6SSantosh Shilimkar { 550b07682b6SSantosh Shilimkar struct platform_device *pdev; 551fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[chip]; 552b07682b6SSantosh Shilimkar int status; 553b07682b6SSantosh Shilimkar 554b07682b6SSantosh Shilimkar pdev = platform_device_alloc(name, num); 555b07682b6SSantosh Shilimkar if (!pdev) { 556b07682b6SSantosh Shilimkar dev_dbg(&twl->client->dev, "can't alloc dev\n"); 557b07682b6SSantosh Shilimkar status = -ENOMEM; 558b07682b6SSantosh Shilimkar goto err; 559b07682b6SSantosh Shilimkar } 560b07682b6SSantosh Shilimkar 561b07682b6SSantosh Shilimkar device_init_wakeup(&pdev->dev, can_wakeup); 562b07682b6SSantosh Shilimkar pdev->dev.parent = &twl->client->dev; 563b07682b6SSantosh Shilimkar 564b07682b6SSantosh Shilimkar if (pdata) { 565b07682b6SSantosh Shilimkar status = platform_device_add_data(pdev, pdata, pdata_len); 566b07682b6SSantosh Shilimkar if (status < 0) { 567b07682b6SSantosh Shilimkar dev_dbg(&pdev->dev, "can't add platform_data\n"); 568b07682b6SSantosh Shilimkar goto err; 569b07682b6SSantosh Shilimkar } 570b07682b6SSantosh Shilimkar } 571b07682b6SSantosh Shilimkar 572b07682b6SSantosh Shilimkar if (irq0) { 573b07682b6SSantosh Shilimkar struct resource r[2] = { 574b07682b6SSantosh Shilimkar { .start = irq0, .flags = IORESOURCE_IRQ, }, 575b07682b6SSantosh Shilimkar { .start = irq1, .flags = IORESOURCE_IRQ, }, 576b07682b6SSantosh Shilimkar }; 577b07682b6SSantosh Shilimkar 578b07682b6SSantosh Shilimkar status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); 579b07682b6SSantosh Shilimkar if (status < 0) { 580b07682b6SSantosh Shilimkar dev_dbg(&pdev->dev, "can't add irqs\n"); 581b07682b6SSantosh Shilimkar goto err; 582b07682b6SSantosh Shilimkar } 583b07682b6SSantosh Shilimkar } 584b07682b6SSantosh Shilimkar 585b07682b6SSantosh Shilimkar status = platform_device_add(pdev); 586b07682b6SSantosh Shilimkar 587b07682b6SSantosh Shilimkar err: 588b07682b6SSantosh Shilimkar if (status < 0) { 589b07682b6SSantosh Shilimkar platform_device_put(pdev); 590b07682b6SSantosh Shilimkar dev_err(&twl->client->dev, "can't add %s dev\n", name); 591b07682b6SSantosh Shilimkar return ERR_PTR(status); 592b07682b6SSantosh Shilimkar } 593b07682b6SSantosh Shilimkar return &pdev->dev; 594b07682b6SSantosh Shilimkar } 595b07682b6SSantosh Shilimkar 596b07682b6SSantosh Shilimkar static inline struct device *add_child(unsigned chip, const char *name, 597b07682b6SSantosh Shilimkar void *pdata, unsigned pdata_len, 598b07682b6SSantosh Shilimkar bool can_wakeup, int irq0, int irq1) 599b07682b6SSantosh Shilimkar { 600b07682b6SSantosh Shilimkar return add_numbered_child(chip, name, -1, pdata, pdata_len, 601b07682b6SSantosh Shilimkar can_wakeup, irq0, irq1); 602b07682b6SSantosh Shilimkar } 603b07682b6SSantosh Shilimkar 604b07682b6SSantosh Shilimkar static struct device * 605b07682b6SSantosh Shilimkar add_regulator_linked(int num, struct regulator_init_data *pdata, 606b07682b6SSantosh Shilimkar struct regulator_consumer_supply *consumers, 607b07682b6SSantosh Shilimkar unsigned num_consumers) 608b07682b6SSantosh Shilimkar { 609e8deb28cSBalaji T K unsigned sub_chip_id; 610b07682b6SSantosh Shilimkar /* regulator framework demands init_data ... */ 611b07682b6SSantosh Shilimkar if (!pdata) 612b07682b6SSantosh Shilimkar return NULL; 613b07682b6SSantosh Shilimkar 614b07682b6SSantosh Shilimkar if (consumers) { 615b07682b6SSantosh Shilimkar pdata->consumer_supplies = consumers; 616b07682b6SSantosh Shilimkar pdata->num_consumer_supplies = num_consumers; 617b07682b6SSantosh Shilimkar } 618b07682b6SSantosh Shilimkar 619b07682b6SSantosh Shilimkar /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ 620e8deb28cSBalaji T K sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; 621e8deb28cSBalaji T K return add_numbered_child(sub_chip_id, "twl_reg", num, 622b07682b6SSantosh Shilimkar pdata, sizeof(*pdata), false, 0, 0); 623b07682b6SSantosh Shilimkar } 624b07682b6SSantosh Shilimkar 625b07682b6SSantosh Shilimkar static struct device * 626b07682b6SSantosh Shilimkar add_regulator(int num, struct regulator_init_data *pdata) 627b07682b6SSantosh Shilimkar { 628b07682b6SSantosh Shilimkar return add_regulator_linked(num, pdata, NULL, 0); 629b07682b6SSantosh Shilimkar } 630b07682b6SSantosh Shilimkar 631b07682b6SSantosh Shilimkar /* 632b07682b6SSantosh Shilimkar * NOTE: We know the first 8 IRQs after pdata->base_irq are 633b07682b6SSantosh Shilimkar * for the PIH, and the next are for the PWR_INT SIH, since 634b07682b6SSantosh Shilimkar * that's how twl_init_irq() sets things up. 635b07682b6SSantosh Shilimkar */ 636b07682b6SSantosh Shilimkar 637b07682b6SSantosh Shilimkar static int 638b07682b6SSantosh Shilimkar add_children(struct twl4030_platform_data *pdata, unsigned long features) 639b07682b6SSantosh Shilimkar { 640b07682b6SSantosh Shilimkar struct device *child; 641e8deb28cSBalaji T K unsigned sub_chip_id; 642b07682b6SSantosh Shilimkar 643b07682b6SSantosh Shilimkar if (twl_has_gpio() && pdata->gpio) { 644fc7b92fcSBalaji T K child = add_child(SUB_CHIP_ID1, "twl4030_gpio", 645b07682b6SSantosh Shilimkar pdata->gpio, sizeof(*pdata->gpio), 646fc7b92fcSBalaji T K false, pdata->irq_base + GPIO_INTR_OFFSET, 0); 647b07682b6SSantosh Shilimkar if (IS_ERR(child)) 648b07682b6SSantosh Shilimkar return PTR_ERR(child); 649b07682b6SSantosh Shilimkar } 650b07682b6SSantosh Shilimkar 651b07682b6SSantosh Shilimkar if (twl_has_keypad() && pdata->keypad) { 652fc7b92fcSBalaji T K child = add_child(SUB_CHIP_ID2, "twl4030_keypad", 653b07682b6SSantosh Shilimkar pdata->keypad, sizeof(*pdata->keypad), 654fc7b92fcSBalaji T K true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0); 655b07682b6SSantosh Shilimkar if (IS_ERR(child)) 656b07682b6SSantosh Shilimkar return PTR_ERR(child); 657b07682b6SSantosh Shilimkar } 658b07682b6SSantosh Shilimkar 659b07682b6SSantosh Shilimkar if (twl_has_madc() && pdata->madc) { 660b07682b6SSantosh Shilimkar child = add_child(2, "twl4030_madc", 661b07682b6SSantosh Shilimkar pdata->madc, sizeof(*pdata->madc), 662fc7b92fcSBalaji T K true, pdata->irq_base + MADC_INTR_OFFSET, 0); 663b07682b6SSantosh Shilimkar if (IS_ERR(child)) 664b07682b6SSantosh Shilimkar return PTR_ERR(child); 665b07682b6SSantosh Shilimkar } 666b07682b6SSantosh Shilimkar 667b07682b6SSantosh Shilimkar if (twl_has_rtc()) { 668b07682b6SSantosh Shilimkar /* 669b07682b6SSantosh Shilimkar * REVISIT platform_data here currently might expose the 670b07682b6SSantosh Shilimkar * "msecure" line ... but for now we just expect board 671b07682b6SSantosh Shilimkar * setup to tell the chip "it's always ok to SET_TIME". 672b07682b6SSantosh Shilimkar * Eventually, Linux might become more aware of such 673b07682b6SSantosh Shilimkar * HW security concerns, and "least privilege". 674b07682b6SSantosh Shilimkar */ 675e8deb28cSBalaji T K sub_chip_id = twl_map[TWL_MODULE_RTC].sid; 676e8deb28cSBalaji T K child = add_child(sub_chip_id, "twl_rtc", 677b07682b6SSantosh Shilimkar NULL, 0, 678fc7b92fcSBalaji T K true, pdata->irq_base + RTC_INTR_OFFSET, 0); 679b07682b6SSantosh Shilimkar if (IS_ERR(child)) 680b07682b6SSantosh Shilimkar return PTR_ERR(child); 681b07682b6SSantosh Shilimkar } 682b07682b6SSantosh Shilimkar 6839da66539SRajendra Nayak if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { 684b07682b6SSantosh Shilimkar 685b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb1v5 = { 686b07682b6SSantosh Shilimkar .supply = "usb1v5", 687b07682b6SSantosh Shilimkar }; 688b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb1v8 = { 689b07682b6SSantosh Shilimkar .supply = "usb1v8", 690b07682b6SSantosh Shilimkar }; 691b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb3v1 = { 692b07682b6SSantosh Shilimkar .supply = "usb3v1", 693b07682b6SSantosh Shilimkar }; 694b07682b6SSantosh Shilimkar 695b07682b6SSantosh Shilimkar /* First add the regulators so that they can be used by transceiver */ 696b07682b6SSantosh Shilimkar if (twl_has_regulator()) { 697b07682b6SSantosh Shilimkar /* this is a template that gets copied */ 698b07682b6SSantosh Shilimkar struct regulator_init_data usb_fixed = { 699b07682b6SSantosh Shilimkar .constraints.valid_modes_mask = 700b07682b6SSantosh Shilimkar REGULATOR_MODE_NORMAL 701b07682b6SSantosh Shilimkar | REGULATOR_MODE_STANDBY, 702b07682b6SSantosh Shilimkar .constraints.valid_ops_mask = 703b07682b6SSantosh Shilimkar REGULATOR_CHANGE_MODE 704b07682b6SSantosh Shilimkar | REGULATOR_CHANGE_STATUS, 705b07682b6SSantosh Shilimkar }; 706b07682b6SSantosh Shilimkar 707b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB1V5, 708b07682b6SSantosh Shilimkar &usb_fixed, &usb1v5, 1); 709b07682b6SSantosh Shilimkar if (IS_ERR(child)) 710b07682b6SSantosh Shilimkar return PTR_ERR(child); 711b07682b6SSantosh Shilimkar 712b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB1V8, 713b07682b6SSantosh Shilimkar &usb_fixed, &usb1v8, 1); 714b07682b6SSantosh Shilimkar if (IS_ERR(child)) 715b07682b6SSantosh Shilimkar return PTR_ERR(child); 716b07682b6SSantosh Shilimkar 717b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB3V1, 718b07682b6SSantosh Shilimkar &usb_fixed, &usb3v1, 1); 719b07682b6SSantosh Shilimkar if (IS_ERR(child)) 720b07682b6SSantosh Shilimkar return PTR_ERR(child); 721b07682b6SSantosh Shilimkar 722b07682b6SSantosh Shilimkar } 723b07682b6SSantosh Shilimkar 724b07682b6SSantosh Shilimkar child = add_child(0, "twl4030_usb", 725b07682b6SSantosh Shilimkar pdata->usb, sizeof(*pdata->usb), 726b07682b6SSantosh Shilimkar true, 727b07682b6SSantosh Shilimkar /* irq0 = USB_PRES, irq1 = USB */ 728fc7b92fcSBalaji T K pdata->irq_base + USB_PRES_INTR_OFFSET, 729fc7b92fcSBalaji T K pdata->irq_base + USB_INTR_OFFSET); 730b07682b6SSantosh Shilimkar 731b07682b6SSantosh Shilimkar if (IS_ERR(child)) 732b07682b6SSantosh Shilimkar return PTR_ERR(child); 733b07682b6SSantosh Shilimkar 734b07682b6SSantosh Shilimkar /* we need to connect regulators to this transceiver */ 735b07682b6SSantosh Shilimkar if (twl_has_regulator() && child) { 736b07682b6SSantosh Shilimkar usb1v5.dev = child; 737b07682b6SSantosh Shilimkar usb1v8.dev = child; 738b07682b6SSantosh Shilimkar usb3v1.dev = child; 739b07682b6SSantosh Shilimkar } 740b07682b6SSantosh Shilimkar } 741e70357e3SHema HK if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { 742e70357e3SHema HK 743e70357e3SHema HK static struct regulator_consumer_supply usb3v3 = { 744e70357e3SHema HK .supply = "vusb", 745e70357e3SHema HK }; 746e70357e3SHema HK 747e70357e3SHema HK if (twl_has_regulator()) { 748e70357e3SHema HK /* this is a template that gets copied */ 749e70357e3SHema HK struct regulator_init_data usb_fixed = { 750e70357e3SHema HK .constraints.valid_modes_mask = 751e70357e3SHema HK REGULATOR_MODE_NORMAL 752e70357e3SHema HK | REGULATOR_MODE_STANDBY, 753e70357e3SHema HK .constraints.valid_ops_mask = 754e70357e3SHema HK REGULATOR_CHANGE_MODE 755e70357e3SHema HK | REGULATOR_CHANGE_STATUS, 756e70357e3SHema HK }; 757e70357e3SHema HK 758e70357e3SHema HK child = add_regulator_linked(TWL6030_REG_VUSB, 759e70357e3SHema HK &usb_fixed, &usb3v3, 1); 760e70357e3SHema HK if (IS_ERR(child)) 761e70357e3SHema HK return PTR_ERR(child); 762e70357e3SHema HK } 763e70357e3SHema HK 764e70357e3SHema HK child = add_child(0, "twl6030_usb", 765e70357e3SHema HK pdata->usb, sizeof(*pdata->usb), 766e70357e3SHema HK true, 767e70357e3SHema HK /* irq1 = VBUS_PRES, irq0 = USB ID */ 768e70357e3SHema HK pdata->irq_base + USBOTG_INTR_OFFSET, 769e70357e3SHema HK pdata->irq_base + USB_PRES_INTR_OFFSET); 770e70357e3SHema HK 771e70357e3SHema HK if (IS_ERR(child)) 772e70357e3SHema HK return PTR_ERR(child); 773e70357e3SHema HK /* we need to connect regulators to this transceiver */ 774e70357e3SHema HK if (twl_has_regulator() && child) 775e70357e3SHema HK usb3v3.dev = child; 776e70357e3SHema HK 777e70357e3SHema HK } 778b07682b6SSantosh Shilimkar 779153617fdSKeerthy if (twl_has_watchdog() && twl_class_is_4030()) { 780b07682b6SSantosh Shilimkar child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); 781b07682b6SSantosh Shilimkar if (IS_ERR(child)) 782b07682b6SSantosh Shilimkar return PTR_ERR(child); 783b07682b6SSantosh Shilimkar } 784b07682b6SSantosh Shilimkar 785153617fdSKeerthy if (twl_has_pwrbutton() && twl_class_is_4030()) { 786b07682b6SSantosh Shilimkar child = add_child(1, "twl4030_pwrbutton", 787b07682b6SSantosh Shilimkar NULL, 0, true, pdata->irq_base + 8 + 0, 0); 788b07682b6SSantosh Shilimkar if (IS_ERR(child)) 789b07682b6SSantosh Shilimkar return PTR_ERR(child); 790b07682b6SSantosh Shilimkar } 791b07682b6SSantosh Shilimkar 792d62abe56SMisael Lopez Cruz if (twl_has_codec() && pdata->codec && twl_class_is_4030()) { 793d62abe56SMisael Lopez Cruz sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 794f0fba2adSLiam Girdwood child = add_child(sub_chip_id, "twl4030-audio", 795d62abe56SMisael Lopez Cruz pdata->codec, sizeof(*pdata->codec), 796d62abe56SMisael Lopez Cruz false, 0, 0); 797d62abe56SMisael Lopez Cruz if (IS_ERR(child)) 798d62abe56SMisael Lopez Cruz return PTR_ERR(child); 799d62abe56SMisael Lopez Cruz } 800d62abe56SMisael Lopez Cruz 801f0fba2adSLiam Girdwood /* Phoenix codec driver is probed directly atm */ 802d62abe56SMisael Lopez Cruz if (twl_has_codec() && pdata->codec && twl_class_is_6030()) { 803d62abe56SMisael Lopez Cruz sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 804f0fba2adSLiam Girdwood child = add_child(sub_chip_id, "twl6040-codec", 805b07682b6SSantosh Shilimkar pdata->codec, sizeof(*pdata->codec), 806b07682b6SSantosh Shilimkar false, 0, 0); 807b07682b6SSantosh Shilimkar if (IS_ERR(child)) 808b07682b6SSantosh Shilimkar return PTR_ERR(child); 809b07682b6SSantosh Shilimkar } 810b07682b6SSantosh Shilimkar 8119da66539SRajendra Nayak /* twl4030 regulators */ 8129da66539SRajendra Nayak if (twl_has_regulator() && twl_class_is_4030()) { 813b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1); 814b07682b6SSantosh Shilimkar if (IS_ERR(child)) 815b07682b6SSantosh Shilimkar return PTR_ERR(child); 816b07682b6SSantosh Shilimkar 817b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VIO, pdata->vio); 818b07682b6SSantosh Shilimkar if (IS_ERR(child)) 819b07682b6SSantosh Shilimkar return PTR_ERR(child); 820b07682b6SSantosh Shilimkar 821b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1); 822b07682b6SSantosh Shilimkar if (IS_ERR(child)) 823b07682b6SSantosh Shilimkar return PTR_ERR(child); 824b07682b6SSantosh Shilimkar 825b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2); 826b07682b6SSantosh Shilimkar if (IS_ERR(child)) 827b07682b6SSantosh Shilimkar return PTR_ERR(child); 828b07682b6SSantosh Shilimkar 829b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1); 830b07682b6SSantosh Shilimkar if (IS_ERR(child)) 831b07682b6SSantosh Shilimkar return PTR_ERR(child); 832b07682b6SSantosh Shilimkar 833b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VDAC, pdata->vdac); 834b07682b6SSantosh Shilimkar if (IS_ERR(child)) 835b07682b6SSantosh Shilimkar return PTR_ERR(child); 836b07682b6SSantosh Shilimkar 837b07682b6SSantosh Shilimkar child = add_regulator((features & TWL4030_VAUX2) 838b07682b6SSantosh Shilimkar ? TWL4030_REG_VAUX2_4030 839b07682b6SSantosh Shilimkar : TWL4030_REG_VAUX2, 840b07682b6SSantosh Shilimkar pdata->vaux2); 841b07682b6SSantosh Shilimkar if (IS_ERR(child)) 842b07682b6SSantosh Shilimkar return PTR_ERR(child); 843b07682b6SSantosh Shilimkar 844b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1); 845b07682b6SSantosh Shilimkar if (IS_ERR(child)) 846b07682b6SSantosh Shilimkar return PTR_ERR(child); 847b07682b6SSantosh Shilimkar 848b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2); 849b07682b6SSantosh Shilimkar if (IS_ERR(child)) 850b07682b6SSantosh Shilimkar return PTR_ERR(child); 851b07682b6SSantosh Shilimkar 852b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig); 853b07682b6SSantosh Shilimkar if (IS_ERR(child)) 854b07682b6SSantosh Shilimkar return PTR_ERR(child); 855b07682b6SSantosh Shilimkar } 856b07682b6SSantosh Shilimkar 857b07682b6SSantosh Shilimkar /* maybe add LDOs that are omitted on cost-reduced parts */ 8589da66539SRajendra Nayak if (twl_has_regulator() && !(features & TPS_SUBSET) 8599da66539SRajendra Nayak && twl_class_is_4030()) { 860b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2); 861b07682b6SSantosh Shilimkar if (IS_ERR(child)) 862b07682b6SSantosh Shilimkar return PTR_ERR(child); 863b07682b6SSantosh Shilimkar 864b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2); 865b07682b6SSantosh Shilimkar if (IS_ERR(child)) 866b07682b6SSantosh Shilimkar return PTR_ERR(child); 867b07682b6SSantosh Shilimkar 868b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VSIM, pdata->vsim); 869b07682b6SSantosh Shilimkar if (IS_ERR(child)) 870b07682b6SSantosh Shilimkar return PTR_ERR(child); 871b07682b6SSantosh Shilimkar 872b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1); 873b07682b6SSantosh Shilimkar if (IS_ERR(child)) 874b07682b6SSantosh Shilimkar return PTR_ERR(child); 875b07682b6SSantosh Shilimkar 876b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3); 877b07682b6SSantosh Shilimkar if (IS_ERR(child)) 878b07682b6SSantosh Shilimkar return PTR_ERR(child); 879b07682b6SSantosh Shilimkar 880b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4); 881b07682b6SSantosh Shilimkar if (IS_ERR(child)) 882b07682b6SSantosh Shilimkar return PTR_ERR(child); 883b07682b6SSantosh Shilimkar } 884b07682b6SSantosh Shilimkar 8859da66539SRajendra Nayak /* twl6030 regulators */ 8869da66539SRajendra Nayak if (twl_has_regulator() && twl_class_is_6030()) { 8879da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc); 8889da66539SRajendra Nayak if (IS_ERR(child)) 8899da66539SRajendra Nayak return PTR_ERR(child); 8909da66539SRajendra Nayak 8919da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VPP, pdata->vpp); 8929da66539SRajendra Nayak if (IS_ERR(child)) 8939da66539SRajendra Nayak return PTR_ERR(child); 8949da66539SRajendra Nayak 8959da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim); 8969da66539SRajendra Nayak if (IS_ERR(child)) 8979da66539SRajendra Nayak return PTR_ERR(child); 8989da66539SRajendra Nayak 8999da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VANA, pdata->vana); 9009da66539SRajendra Nayak if (IS_ERR(child)) 9019da66539SRajendra Nayak return PTR_ERR(child); 9029da66539SRajendra Nayak 9039da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio); 9049da66539SRajendra Nayak if (IS_ERR(child)) 9059da66539SRajendra Nayak return PTR_ERR(child); 9069da66539SRajendra Nayak 9079da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VDAC, pdata->vdac); 9089da66539SRajendra Nayak if (IS_ERR(child)) 9099da66539SRajendra Nayak return PTR_ERR(child); 9109da66539SRajendra Nayak 9119da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1); 9129da66539SRajendra Nayak if (IS_ERR(child)) 9139da66539SRajendra Nayak return PTR_ERR(child); 9149da66539SRajendra Nayak 9159da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2); 9169da66539SRajendra Nayak if (IS_ERR(child)) 9179da66539SRajendra Nayak return PTR_ERR(child); 9189da66539SRajendra Nayak 9199da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3); 9209da66539SRajendra Nayak if (IS_ERR(child)) 9219da66539SRajendra Nayak return PTR_ERR(child); 9228e6de4a3SBalaji T K 9238e6de4a3SBalaji T K child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg); 9248e6de4a3SBalaji T K if (IS_ERR(child)) 9258e6de4a3SBalaji T K return PTR_ERR(child); 9269da66539SRajendra Nayak } 9279da66539SRajendra Nayak 92811c39c4bSGrazvydas Ignotas if (twl_has_bci() && pdata->bci && 92911c39c4bSGrazvydas Ignotas !(features & (TPS_SUBSET | TWL5031))) { 93011c39c4bSGrazvydas Ignotas child = add_child(3, "twl4030_bci", 93111c39c4bSGrazvydas Ignotas pdata->bci, sizeof(*pdata->bci), false, 93211c39c4bSGrazvydas Ignotas /* irq0 = CHG_PRES, irq1 = BCI */ 93311c39c4bSGrazvydas Ignotas pdata->irq_base + BCI_PRES_INTR_OFFSET, 93411c39c4bSGrazvydas Ignotas pdata->irq_base + BCI_INTR_OFFSET); 93511c39c4bSGrazvydas Ignotas if (IS_ERR(child)) 93611c39c4bSGrazvydas Ignotas return PTR_ERR(child); 93711c39c4bSGrazvydas Ignotas } 93811c39c4bSGrazvydas Ignotas 939b07682b6SSantosh Shilimkar return 0; 940b07682b6SSantosh Shilimkar } 941b07682b6SSantosh Shilimkar 942b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 943b07682b6SSantosh Shilimkar 944b07682b6SSantosh Shilimkar /* 945b07682b6SSantosh Shilimkar * These three functions initialize the on-chip clock framework, 946b07682b6SSantosh Shilimkar * letting it generate the right frequencies for USB, MADC, and 947b07682b6SSantosh Shilimkar * other purposes. 948b07682b6SSantosh Shilimkar */ 949b07682b6SSantosh Shilimkar static inline int __init protect_pm_master(void) 950b07682b6SSantosh Shilimkar { 951b07682b6SSantosh Shilimkar int e = 0; 952b07682b6SSantosh Shilimkar 95349e6f87eSFelipe Balbi e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, 95449e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 955b07682b6SSantosh Shilimkar return e; 956b07682b6SSantosh Shilimkar } 957b07682b6SSantosh Shilimkar 958b07682b6SSantosh Shilimkar static inline int __init unprotect_pm_master(void) 959b07682b6SSantosh Shilimkar { 960b07682b6SSantosh Shilimkar int e = 0; 961b07682b6SSantosh Shilimkar 96249e6f87eSFelipe Balbi e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 96349e6f87eSFelipe Balbi TWL4030_PM_MASTER_KEY_CFG1, 96449e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 96549e6f87eSFelipe Balbi e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 96649e6f87eSFelipe Balbi TWL4030_PM_MASTER_KEY_CFG2, 96749e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 96849e6f87eSFelipe Balbi 969b07682b6SSantosh Shilimkar return e; 970b07682b6SSantosh Shilimkar } 971b07682b6SSantosh Shilimkar 972b07682b6SSantosh Shilimkar static void clocks_init(struct device *dev, 973b07682b6SSantosh Shilimkar struct twl4030_clock_init_data *clock) 974b07682b6SSantosh Shilimkar { 975b07682b6SSantosh Shilimkar int e = 0; 976b07682b6SSantosh Shilimkar struct clk *osc; 977b07682b6SSantosh Shilimkar u32 rate; 978b07682b6SSantosh Shilimkar u8 ctrl = HFCLK_FREQ_26_MHZ; 979b07682b6SSantosh Shilimkar 980b07682b6SSantosh Shilimkar #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) 981b07682b6SSantosh Shilimkar if (cpu_is_omap2430()) 982b07682b6SSantosh Shilimkar osc = clk_get(dev, "osc_ck"); 983b07682b6SSantosh Shilimkar else 984b07682b6SSantosh Shilimkar osc = clk_get(dev, "osc_sys_ck"); 985b07682b6SSantosh Shilimkar 986b07682b6SSantosh Shilimkar if (IS_ERR(osc)) { 987fc7b92fcSBalaji T K printk(KERN_WARNING "Skipping twl internal clock init and " 988b07682b6SSantosh Shilimkar "using bootloader value (unknown osc rate)\n"); 989b07682b6SSantosh Shilimkar return; 990b07682b6SSantosh Shilimkar } 991b07682b6SSantosh Shilimkar 992b07682b6SSantosh Shilimkar rate = clk_get_rate(osc); 993b07682b6SSantosh Shilimkar clk_put(osc); 994b07682b6SSantosh Shilimkar 995b07682b6SSantosh Shilimkar #else 996b07682b6SSantosh Shilimkar /* REVISIT for non-OMAP systems, pass the clock rate from 997b07682b6SSantosh Shilimkar * board init code, using platform_data. 998b07682b6SSantosh Shilimkar */ 999b07682b6SSantosh Shilimkar osc = ERR_PTR(-EIO); 1000b07682b6SSantosh Shilimkar 1001fc7b92fcSBalaji T K printk(KERN_WARNING "Skipping twl internal clock init and " 1002b07682b6SSantosh Shilimkar "using bootloader value (unknown osc rate)\n"); 1003b07682b6SSantosh Shilimkar 1004b07682b6SSantosh Shilimkar return; 1005b07682b6SSantosh Shilimkar #endif 1006b07682b6SSantosh Shilimkar 1007b07682b6SSantosh Shilimkar switch (rate) { 1008b07682b6SSantosh Shilimkar case 19200000: 1009b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_19p2_MHZ; 1010b07682b6SSantosh Shilimkar break; 1011b07682b6SSantosh Shilimkar case 26000000: 1012b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_26_MHZ; 1013b07682b6SSantosh Shilimkar break; 1014b07682b6SSantosh Shilimkar case 38400000: 1015b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_38p4_MHZ; 1016b07682b6SSantosh Shilimkar break; 1017b07682b6SSantosh Shilimkar } 1018b07682b6SSantosh Shilimkar 1019b07682b6SSantosh Shilimkar ctrl |= HIGH_PERF_SQ; 1020b07682b6SSantosh Shilimkar if (clock && clock->ck32k_lowpwr_enable) 1021b07682b6SSantosh Shilimkar ctrl |= CK32K_LOWPWR_EN; 1022b07682b6SSantosh Shilimkar 1023b07682b6SSantosh Shilimkar e |= unprotect_pm_master(); 1024b07682b6SSantosh Shilimkar /* effect->MADC+USB ck en */ 1025fc7b92fcSBalaji T K e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); 1026b07682b6SSantosh Shilimkar e |= protect_pm_master(); 1027b07682b6SSantosh Shilimkar 1028b07682b6SSantosh Shilimkar if (e < 0) 1029b07682b6SSantosh Shilimkar pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); 1030b07682b6SSantosh Shilimkar } 1031b07682b6SSantosh Shilimkar 1032b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 1033b07682b6SSantosh Shilimkar 1034e8deb28cSBalaji T K int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 1035e8deb28cSBalaji T K int twl4030_exit_irq(void); 1036e8deb28cSBalaji T K int twl4030_init_chip_irq(const char *chip); 1037e8deb28cSBalaji T K int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 1038e8deb28cSBalaji T K int twl6030_exit_irq(void); 1039b07682b6SSantosh Shilimkar 1040fc7b92fcSBalaji T K static int twl_remove(struct i2c_client *client) 1041b07682b6SSantosh Shilimkar { 1042b07682b6SSantosh Shilimkar unsigned i; 1043b07682b6SSantosh Shilimkar int status; 1044b07682b6SSantosh Shilimkar 1045e8deb28cSBalaji T K if (twl_class_is_4030()) 1046e8deb28cSBalaji T K status = twl4030_exit_irq(); 1047e8deb28cSBalaji T K else 1048e8deb28cSBalaji T K status = twl6030_exit_irq(); 1049e8deb28cSBalaji T K 1050b07682b6SSantosh Shilimkar if (status < 0) 1051b07682b6SSantosh Shilimkar return status; 1052b07682b6SSantosh Shilimkar 1053fc7b92fcSBalaji T K for (i = 0; i < TWL_NUM_SLAVES; i++) { 1054fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[i]; 1055b07682b6SSantosh Shilimkar 1056b07682b6SSantosh Shilimkar if (twl->client && twl->client != client) 1057b07682b6SSantosh Shilimkar i2c_unregister_device(twl->client); 1058fc7b92fcSBalaji T K twl_modules[i].client = NULL; 1059b07682b6SSantosh Shilimkar } 1060b07682b6SSantosh Shilimkar inuse = false; 1061b07682b6SSantosh Shilimkar return 0; 1062b07682b6SSantosh Shilimkar } 1063b07682b6SSantosh Shilimkar 1064b07682b6SSantosh Shilimkar /* NOTE: this driver only handles a single twl4030/tps659x0 chip */ 10655b9cecd6SBryan Wu static int __devinit 1066fc7b92fcSBalaji T K twl_probe(struct i2c_client *client, const struct i2c_device_id *id) 1067b07682b6SSantosh Shilimkar { 1068b07682b6SSantosh Shilimkar int status; 1069b07682b6SSantosh Shilimkar unsigned i; 1070b07682b6SSantosh Shilimkar struct twl4030_platform_data *pdata = client->dev.platform_data; 1071a29aaf55SMoiz Sonasath u8 temp; 1072ca972d13SLesly A M int ret = 0; 1073b07682b6SSantosh Shilimkar 1074b07682b6SSantosh Shilimkar if (!pdata) { 1075b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "no platform data?\n"); 1076b07682b6SSantosh Shilimkar return -EINVAL; 1077b07682b6SSantosh Shilimkar } 1078b07682b6SSantosh Shilimkar 1079b07682b6SSantosh Shilimkar if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { 1080b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "can't talk I2C?\n"); 1081b07682b6SSantosh Shilimkar return -EIO; 1082b07682b6SSantosh Shilimkar } 1083b07682b6SSantosh Shilimkar 1084b07682b6SSantosh Shilimkar if (inuse) { 1085b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "driver is already in use\n"); 1086b07682b6SSantosh Shilimkar return -EBUSY; 1087b07682b6SSantosh Shilimkar } 1088b07682b6SSantosh Shilimkar 1089fc7b92fcSBalaji T K for (i = 0; i < TWL_NUM_SLAVES; i++) { 1090fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[i]; 1091b07682b6SSantosh Shilimkar 1092b07682b6SSantosh Shilimkar twl->address = client->addr + i; 1093b07682b6SSantosh Shilimkar if (i == 0) 1094b07682b6SSantosh Shilimkar twl->client = client; 1095b07682b6SSantosh Shilimkar else { 1096b07682b6SSantosh Shilimkar twl->client = i2c_new_dummy(client->adapter, 1097b07682b6SSantosh Shilimkar twl->address); 1098b07682b6SSantosh Shilimkar if (!twl->client) { 1099b07682b6SSantosh Shilimkar dev_err(&client->dev, 1100b07682b6SSantosh Shilimkar "can't attach client %d\n", i); 1101b07682b6SSantosh Shilimkar status = -ENOMEM; 1102b07682b6SSantosh Shilimkar goto fail; 1103b07682b6SSantosh Shilimkar } 1104b07682b6SSantosh Shilimkar } 1105b07682b6SSantosh Shilimkar mutex_init(&twl->xfer_lock); 1106b07682b6SSantosh Shilimkar } 1107b07682b6SSantosh Shilimkar inuse = true; 1108e8deb28cSBalaji T K if ((id->driver_data) & TWL6030_CLASS) { 1109e8deb28cSBalaji T K twl_id = TWL6030_CLASS_ID; 1110e8deb28cSBalaji T K twl_map = &twl6030_map[0]; 1111e8deb28cSBalaji T K } else { 1112e8deb28cSBalaji T K twl_id = TWL4030_CLASS_ID; 1113e8deb28cSBalaji T K twl_map = &twl4030_map[0]; 1114e8deb28cSBalaji T K } 1115b07682b6SSantosh Shilimkar 1116b07682b6SSantosh Shilimkar /* setup clock framework */ 1117b07682b6SSantosh Shilimkar clocks_init(&client->dev, pdata->clock); 1118b07682b6SSantosh Shilimkar 1119ca972d13SLesly A M /* read TWL IDCODE Register */ 1120ca972d13SLesly A M if (twl_id == TWL4030_CLASS_ID) { 1121ca972d13SLesly A M ret = twl_read_idcode_register(); 1122ca972d13SLesly A M WARN(ret < 0, "Error: reading twl_idcode register value\n"); 1123ca972d13SLesly A M } 1124ca972d13SLesly A M 1125b07682b6SSantosh Shilimkar /* load power event scripts */ 1126b07682b6SSantosh Shilimkar if (twl_has_power() && pdata->power) 1127b07682b6SSantosh Shilimkar twl4030_power_init(pdata->power); 1128b07682b6SSantosh Shilimkar 1129b07682b6SSantosh Shilimkar /* Maybe init the T2 Interrupt subsystem */ 1130b07682b6SSantosh Shilimkar if (client->irq 1131b07682b6SSantosh Shilimkar && pdata->irq_base 1132b07682b6SSantosh Shilimkar && pdata->irq_end > pdata->irq_base) { 1133e8deb28cSBalaji T K if (twl_class_is_4030()) { 1134e8deb28cSBalaji T K twl4030_init_chip_irq(id->name); 1135e8deb28cSBalaji T K status = twl4030_init_irq(client->irq, pdata->irq_base, 1136e8deb28cSBalaji T K pdata->irq_end); 1137e8deb28cSBalaji T K } else { 1138e8deb28cSBalaji T K status = twl6030_init_irq(client->irq, pdata->irq_base, 1139e8deb28cSBalaji T K pdata->irq_end); 1140e8deb28cSBalaji T K } 1141e8deb28cSBalaji T K 1142b07682b6SSantosh Shilimkar if (status < 0) 1143b07682b6SSantosh Shilimkar goto fail; 1144b07682b6SSantosh Shilimkar } 1145b07682b6SSantosh Shilimkar 1146a29aaf55SMoiz Sonasath /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. 1147a29aaf55SMoiz Sonasath * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, 1148a29aaf55SMoiz Sonasath * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. 1149a29aaf55SMoiz Sonasath */ 1150a29aaf55SMoiz Sonasath 1151a29aaf55SMoiz Sonasath if (twl_class_is_4030()) { 1152a29aaf55SMoiz Sonasath twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); 1153a29aaf55SMoiz Sonasath temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ 1154a29aaf55SMoiz Sonasath I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); 1155a29aaf55SMoiz Sonasath twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); 1156a29aaf55SMoiz Sonasath } 1157a29aaf55SMoiz Sonasath 1158b07682b6SSantosh Shilimkar status = add_children(pdata, id->driver_data); 1159b07682b6SSantosh Shilimkar fail: 1160b07682b6SSantosh Shilimkar if (status < 0) 1161fc7b92fcSBalaji T K twl_remove(client); 1162b07682b6SSantosh Shilimkar return status; 1163b07682b6SSantosh Shilimkar } 1164b07682b6SSantosh Shilimkar 1165fc7b92fcSBalaji T K static const struct i2c_device_id twl_ids[] = { 1166b07682b6SSantosh Shilimkar { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ 1167b07682b6SSantosh Shilimkar { "twl5030", 0 }, /* T2 updated */ 1168b07682b6SSantosh Shilimkar { "twl5031", TWL5031 }, /* TWL5030 updated */ 1169b07682b6SSantosh Shilimkar { "tps65950", 0 }, /* catalog version of twl5030 */ 1170b07682b6SSantosh Shilimkar { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ 1171b07682b6SSantosh Shilimkar { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ 1172e8deb28cSBalaji T K { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1173b07682b6SSantosh Shilimkar { /* end of list */ }, 1174b07682b6SSantosh Shilimkar }; 1175fc7b92fcSBalaji T K MODULE_DEVICE_TABLE(i2c, twl_ids); 1176b07682b6SSantosh Shilimkar 1177b07682b6SSantosh Shilimkar /* One Client Driver , 4 Clients */ 1178fc7b92fcSBalaji T K static struct i2c_driver twl_driver = { 1179b07682b6SSantosh Shilimkar .driver.name = DRIVER_NAME, 1180fc7b92fcSBalaji T K .id_table = twl_ids, 1181fc7b92fcSBalaji T K .probe = twl_probe, 1182fc7b92fcSBalaji T K .remove = twl_remove, 1183b07682b6SSantosh Shilimkar }; 1184b07682b6SSantosh Shilimkar 1185fc7b92fcSBalaji T K static int __init twl_init(void) 1186b07682b6SSantosh Shilimkar { 1187fc7b92fcSBalaji T K return i2c_add_driver(&twl_driver); 1188b07682b6SSantosh Shilimkar } 1189fc7b92fcSBalaji T K subsys_initcall(twl_init); 1190b07682b6SSantosh Shilimkar 1191fc7b92fcSBalaji T K static void __exit twl_exit(void) 1192b07682b6SSantosh Shilimkar { 1193fc7b92fcSBalaji T K i2c_del_driver(&twl_driver); 1194b07682b6SSantosh Shilimkar } 1195fc7b92fcSBalaji T K module_exit(twl_exit); 1196b07682b6SSantosh Shilimkar 1197b07682b6SSantosh Shilimkar MODULE_AUTHOR("Texas Instruments, Inc."); 1198fc7b92fcSBalaji T K MODULE_DESCRIPTION("I2C Core interface for TWL"); 1199b07682b6SSantosh Shilimkar MODULE_LICENSE("GPL"); 1200