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 232e8deb28cSBalaji T K static unsigned int twl_id; 233e8deb28cSBalaji T K unsigned int twl_rev(void) 234e8deb28cSBalaji T K { 235e8deb28cSBalaji T K return twl_id; 236e8deb28cSBalaji T K } 237e8deb28cSBalaji T K EXPORT_SYMBOL(twl_rev); 238e8deb28cSBalaji T K 239e8deb28cSBalaji T K /* Structure for each TWL4030/TWL6030 Slave */ 240fc7b92fcSBalaji T K struct twl_client { 241b07682b6SSantosh Shilimkar struct i2c_client *client; 242b07682b6SSantosh Shilimkar u8 address; 243b07682b6SSantosh Shilimkar 244b07682b6SSantosh Shilimkar /* max numb of i2c_msg required is for read =2 */ 245b07682b6SSantosh Shilimkar struct i2c_msg xfer_msg[2]; 246b07682b6SSantosh Shilimkar 247b07682b6SSantosh Shilimkar /* To lock access to xfer_msg */ 248b07682b6SSantosh Shilimkar struct mutex xfer_lock; 249b07682b6SSantosh Shilimkar }; 250b07682b6SSantosh Shilimkar 251fc7b92fcSBalaji T K static struct twl_client twl_modules[TWL_NUM_SLAVES]; 252b07682b6SSantosh Shilimkar 253b07682b6SSantosh Shilimkar 254b07682b6SSantosh Shilimkar /* mapping the module id to slave id and base address */ 255fc7b92fcSBalaji T K struct twl_mapping { 256b07682b6SSantosh Shilimkar unsigned char sid; /* Slave ID */ 257b07682b6SSantosh Shilimkar unsigned char base; /* base address */ 258b07682b6SSantosh Shilimkar }; 2592cfcce18SG, Manjunath Kondaiah static struct twl_mapping *twl_map; 260b07682b6SSantosh Shilimkar 261fc7b92fcSBalaji T K static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { 262b07682b6SSantosh Shilimkar /* 263b07682b6SSantosh Shilimkar * NOTE: don't change this table without updating the 264e8deb28cSBalaji T K * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 265b07682b6SSantosh Shilimkar * so they continue to match the order in this table. 266b07682b6SSantosh Shilimkar */ 267b07682b6SSantosh Shilimkar 268b07682b6SSantosh Shilimkar { 0, TWL4030_BASEADD_USB }, 269b07682b6SSantosh Shilimkar 270b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_AUDIO_VOICE }, 271b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_GPIO }, 272b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_INTBR }, 273b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_PIH }, 274b07682b6SSantosh Shilimkar { 1, TWL4030_BASEADD_TEST }, 275b07682b6SSantosh Shilimkar 276b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_KEYPAD }, 277b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_MADC }, 278b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_INTERRUPTS }, 279b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_LED }, 280b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_MAIN_CHARGE }, 281b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PRECHARGE }, 282b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWM0 }, 283b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWM1 }, 284b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWMA }, 285b07682b6SSantosh Shilimkar { 2, TWL4030_BASEADD_PWMB }, 286b07682b6SSantosh Shilimkar { 2, TWL5031_BASEADD_ACCESSORY }, 287b07682b6SSantosh Shilimkar { 2, TWL5031_BASEADD_INTERRUPTS }, 288b07682b6SSantosh Shilimkar 289b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_BACKUP }, 290b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_INT }, 291b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_PM_MASTER }, 292b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_PM_RECEIVER }, 293b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_RTC }, 294b07682b6SSantosh Shilimkar { 3, TWL4030_BASEADD_SECURED_REG }, 295b07682b6SSantosh Shilimkar }; 296b07682b6SSantosh Shilimkar 297e8deb28cSBalaji T K static struct twl_mapping twl6030_map[] = { 298e8deb28cSBalaji T K /* 299e8deb28cSBalaji T K * NOTE: don't change this table without updating the 300e8deb28cSBalaji T K * <linux/i2c/twl.h> defines for TWL4030_MODULE_* 301e8deb28cSBalaji T K * so they continue to match the order in this table. 302e8deb28cSBalaji T K */ 303e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, 304e8deb28cSBalaji T K { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO }, 305e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, 306e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 307e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, 308e8deb28cSBalaji T K 309e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 310e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 311e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, 312e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 313e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 314e8deb28cSBalaji T K 315e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, 316e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, 317e8deb28cSBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, 318fa0d9762SBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, 319fa0d9762SBalaji T K { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, 320e8deb28cSBalaji T K 321fa0d9762SBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 322fa0d9762SBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, 323e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 324e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 325e8deb28cSBalaji T K { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, 326e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, 327e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, 328e8deb28cSBalaji T K 329e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, 330e8deb28cSBalaji T K { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, 331e8deb28cSBalaji T K }; 332e8deb28cSBalaji T K 333b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 334b07682b6SSantosh Shilimkar 335b07682b6SSantosh Shilimkar /* Exported Functions */ 336b07682b6SSantosh Shilimkar 337b07682b6SSantosh Shilimkar /** 338fc7b92fcSBalaji T K * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 339b07682b6SSantosh Shilimkar * @mod_no: module number 340b07682b6SSantosh Shilimkar * @value: an array of num_bytes+1 containing data to write 341b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 342b07682b6SSantosh Shilimkar * @num_bytes: number of bytes to transfer 343b07682b6SSantosh Shilimkar * 344b07682b6SSantosh Shilimkar * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and 345b07682b6SSantosh Shilimkar * valid data starts at Offset 1. 346b07682b6SSantosh Shilimkar * 347b07682b6SSantosh Shilimkar * Returns the result of operation - 0 is success 348b07682b6SSantosh Shilimkar */ 349fc7b92fcSBalaji T K int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 350b07682b6SSantosh Shilimkar { 351b07682b6SSantosh Shilimkar int ret; 352b07682b6SSantosh Shilimkar int sid; 353fc7b92fcSBalaji T K struct twl_client *twl; 354b07682b6SSantosh Shilimkar struct i2c_msg *msg; 355b07682b6SSantosh Shilimkar 356fc7b92fcSBalaji T K if (unlikely(mod_no > TWL_MODULE_LAST)) { 357b07682b6SSantosh Shilimkar pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 358b07682b6SSantosh Shilimkar return -EPERM; 359b07682b6SSantosh Shilimkar } 360e8deb28cSBalaji T K sid = twl_map[mod_no].sid; 361fc7b92fcSBalaji T K twl = &twl_modules[sid]; 362b07682b6SSantosh Shilimkar 363b07682b6SSantosh Shilimkar if (unlikely(!inuse)) { 364b07682b6SSantosh Shilimkar pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); 365b07682b6SSantosh Shilimkar return -EPERM; 366b07682b6SSantosh Shilimkar } 367b07682b6SSantosh Shilimkar mutex_lock(&twl->xfer_lock); 368b07682b6SSantosh Shilimkar /* 369b07682b6SSantosh Shilimkar * [MSG1]: fill the register address data 370b07682b6SSantosh Shilimkar * fill the data Tx buffer 371b07682b6SSantosh Shilimkar */ 372b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[0]; 373b07682b6SSantosh Shilimkar msg->addr = twl->address; 374b07682b6SSantosh Shilimkar msg->len = num_bytes + 1; 375b07682b6SSantosh Shilimkar msg->flags = 0; 376b07682b6SSantosh Shilimkar msg->buf = value; 377b07682b6SSantosh Shilimkar /* over write the first byte of buffer with the register address */ 378e8deb28cSBalaji T K *value = twl_map[mod_no].base + reg; 379b07682b6SSantosh Shilimkar ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); 380b07682b6SSantosh Shilimkar mutex_unlock(&twl->xfer_lock); 381b07682b6SSantosh Shilimkar 382b07682b6SSantosh Shilimkar /* i2c_transfer returns number of messages transferred */ 383b07682b6SSantosh Shilimkar if (ret != 1) { 384b07682b6SSantosh Shilimkar pr_err("%s: i2c_write failed to transfer all messages\n", 385b07682b6SSantosh Shilimkar DRIVER_NAME); 386b07682b6SSantosh Shilimkar if (ret < 0) 387b07682b6SSantosh Shilimkar return ret; 388b07682b6SSantosh Shilimkar else 389b07682b6SSantosh Shilimkar return -EIO; 390b07682b6SSantosh Shilimkar } else { 391b07682b6SSantosh Shilimkar return 0; 392b07682b6SSantosh Shilimkar } 393b07682b6SSantosh Shilimkar } 394fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_write); 395b07682b6SSantosh Shilimkar 396b07682b6SSantosh Shilimkar /** 397fc7b92fcSBalaji T K * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 398b07682b6SSantosh Shilimkar * @mod_no: module number 399b07682b6SSantosh Shilimkar * @value: an array of num_bytes containing data to be read 400b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 401b07682b6SSantosh Shilimkar * @num_bytes: number of bytes to transfer 402b07682b6SSantosh Shilimkar * 403b07682b6SSantosh Shilimkar * Returns result of operation - num_bytes is success else failure. 404b07682b6SSantosh Shilimkar */ 405fc7b92fcSBalaji T K int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) 406b07682b6SSantosh Shilimkar { 407b07682b6SSantosh Shilimkar int ret; 408b07682b6SSantosh Shilimkar u8 val; 409b07682b6SSantosh Shilimkar int sid; 410fc7b92fcSBalaji T K struct twl_client *twl; 411b07682b6SSantosh Shilimkar struct i2c_msg *msg; 412b07682b6SSantosh Shilimkar 413fc7b92fcSBalaji T K if (unlikely(mod_no > TWL_MODULE_LAST)) { 414b07682b6SSantosh Shilimkar pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); 415b07682b6SSantosh Shilimkar return -EPERM; 416b07682b6SSantosh Shilimkar } 417e8deb28cSBalaji T K sid = twl_map[mod_no].sid; 418fc7b92fcSBalaji T K twl = &twl_modules[sid]; 419b07682b6SSantosh Shilimkar 420b07682b6SSantosh Shilimkar if (unlikely(!inuse)) { 421b07682b6SSantosh Shilimkar pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); 422b07682b6SSantosh Shilimkar return -EPERM; 423b07682b6SSantosh Shilimkar } 424b07682b6SSantosh Shilimkar mutex_lock(&twl->xfer_lock); 425b07682b6SSantosh Shilimkar /* [MSG1] fill the register address data */ 426b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[0]; 427b07682b6SSantosh Shilimkar msg->addr = twl->address; 428b07682b6SSantosh Shilimkar msg->len = 1; 429b07682b6SSantosh Shilimkar msg->flags = 0; /* Read the register value */ 430e8deb28cSBalaji T K val = twl_map[mod_no].base + reg; 431b07682b6SSantosh Shilimkar msg->buf = &val; 432b07682b6SSantosh Shilimkar /* [MSG2] fill the data rx buffer */ 433b07682b6SSantosh Shilimkar msg = &twl->xfer_msg[1]; 434b07682b6SSantosh Shilimkar msg->addr = twl->address; 435b07682b6SSantosh Shilimkar msg->flags = I2C_M_RD; /* Read the register value */ 436b07682b6SSantosh Shilimkar msg->len = num_bytes; /* only n bytes */ 437b07682b6SSantosh Shilimkar msg->buf = value; 438b07682b6SSantosh Shilimkar ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); 439b07682b6SSantosh Shilimkar mutex_unlock(&twl->xfer_lock); 440b07682b6SSantosh Shilimkar 441b07682b6SSantosh Shilimkar /* i2c_transfer returns number of messages transferred */ 442b07682b6SSantosh Shilimkar if (ret != 2) { 443b07682b6SSantosh Shilimkar pr_err("%s: i2c_read failed to transfer all messages\n", 444b07682b6SSantosh Shilimkar DRIVER_NAME); 445b07682b6SSantosh Shilimkar if (ret < 0) 446b07682b6SSantosh Shilimkar return ret; 447b07682b6SSantosh Shilimkar else 448b07682b6SSantosh Shilimkar return -EIO; 449b07682b6SSantosh Shilimkar } else { 450b07682b6SSantosh Shilimkar return 0; 451b07682b6SSantosh Shilimkar } 452b07682b6SSantosh Shilimkar } 453fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_read); 454b07682b6SSantosh Shilimkar 455b07682b6SSantosh Shilimkar /** 456fc7b92fcSBalaji T K * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 457b07682b6SSantosh Shilimkar * @mod_no: module number 458b07682b6SSantosh Shilimkar * @value: the value to be written 8 bit 459b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 460b07682b6SSantosh Shilimkar * 461b07682b6SSantosh Shilimkar * Returns result of operation - 0 is success 462b07682b6SSantosh Shilimkar */ 463fc7b92fcSBalaji T K int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) 464b07682b6SSantosh Shilimkar { 465b07682b6SSantosh Shilimkar 466b07682b6SSantosh Shilimkar /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ 467b07682b6SSantosh Shilimkar u8 temp_buffer[2] = { 0 }; 468b07682b6SSantosh Shilimkar /* offset 1 contains the data */ 469b07682b6SSantosh Shilimkar temp_buffer[1] = value; 470fc7b92fcSBalaji T K return twl_i2c_write(mod_no, temp_buffer, reg, 1); 471b07682b6SSantosh Shilimkar } 472fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_write_u8); 473b07682b6SSantosh Shilimkar 474b07682b6SSantosh Shilimkar /** 475fc7b92fcSBalaji T K * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 476b07682b6SSantosh Shilimkar * @mod_no: module number 477b07682b6SSantosh Shilimkar * @value: the value read 8 bit 478b07682b6SSantosh Shilimkar * @reg: register address (just offset will do) 479b07682b6SSantosh Shilimkar * 480b07682b6SSantosh Shilimkar * Returns result of operation - 0 is success 481b07682b6SSantosh Shilimkar */ 482fc7b92fcSBalaji T K int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) 483b07682b6SSantosh Shilimkar { 484fc7b92fcSBalaji T K return twl_i2c_read(mod_no, value, reg, 1); 485b07682b6SSantosh Shilimkar } 486fc7b92fcSBalaji T K EXPORT_SYMBOL(twl_i2c_read_u8); 487b07682b6SSantosh Shilimkar 488b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 489b07682b6SSantosh Shilimkar 490b07682b6SSantosh Shilimkar static struct device * 491b07682b6SSantosh Shilimkar add_numbered_child(unsigned chip, const char *name, int num, 492b07682b6SSantosh Shilimkar void *pdata, unsigned pdata_len, 493b07682b6SSantosh Shilimkar bool can_wakeup, int irq0, int irq1) 494b07682b6SSantosh Shilimkar { 495b07682b6SSantosh Shilimkar struct platform_device *pdev; 496fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[chip]; 497b07682b6SSantosh Shilimkar int status; 498b07682b6SSantosh Shilimkar 499b07682b6SSantosh Shilimkar pdev = platform_device_alloc(name, num); 500b07682b6SSantosh Shilimkar if (!pdev) { 501b07682b6SSantosh Shilimkar dev_dbg(&twl->client->dev, "can't alloc dev\n"); 502b07682b6SSantosh Shilimkar status = -ENOMEM; 503b07682b6SSantosh Shilimkar goto err; 504b07682b6SSantosh Shilimkar } 505b07682b6SSantosh Shilimkar 506b07682b6SSantosh Shilimkar device_init_wakeup(&pdev->dev, can_wakeup); 507b07682b6SSantosh Shilimkar pdev->dev.parent = &twl->client->dev; 508b07682b6SSantosh Shilimkar 509b07682b6SSantosh Shilimkar if (pdata) { 510b07682b6SSantosh Shilimkar status = platform_device_add_data(pdev, pdata, pdata_len); 511b07682b6SSantosh Shilimkar if (status < 0) { 512b07682b6SSantosh Shilimkar dev_dbg(&pdev->dev, "can't add platform_data\n"); 513b07682b6SSantosh Shilimkar goto err; 514b07682b6SSantosh Shilimkar } 515b07682b6SSantosh Shilimkar } 516b07682b6SSantosh Shilimkar 517b07682b6SSantosh Shilimkar if (irq0) { 518b07682b6SSantosh Shilimkar struct resource r[2] = { 519b07682b6SSantosh Shilimkar { .start = irq0, .flags = IORESOURCE_IRQ, }, 520b07682b6SSantosh Shilimkar { .start = irq1, .flags = IORESOURCE_IRQ, }, 521b07682b6SSantosh Shilimkar }; 522b07682b6SSantosh Shilimkar 523b07682b6SSantosh Shilimkar status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); 524b07682b6SSantosh Shilimkar if (status < 0) { 525b07682b6SSantosh Shilimkar dev_dbg(&pdev->dev, "can't add irqs\n"); 526b07682b6SSantosh Shilimkar goto err; 527b07682b6SSantosh Shilimkar } 528b07682b6SSantosh Shilimkar } 529b07682b6SSantosh Shilimkar 530b07682b6SSantosh Shilimkar status = platform_device_add(pdev); 531b07682b6SSantosh Shilimkar 532b07682b6SSantosh Shilimkar err: 533b07682b6SSantosh Shilimkar if (status < 0) { 534b07682b6SSantosh Shilimkar platform_device_put(pdev); 535b07682b6SSantosh Shilimkar dev_err(&twl->client->dev, "can't add %s dev\n", name); 536b07682b6SSantosh Shilimkar return ERR_PTR(status); 537b07682b6SSantosh Shilimkar } 538b07682b6SSantosh Shilimkar return &pdev->dev; 539b07682b6SSantosh Shilimkar } 540b07682b6SSantosh Shilimkar 541b07682b6SSantosh Shilimkar static inline struct device *add_child(unsigned chip, const char *name, 542b07682b6SSantosh Shilimkar void *pdata, unsigned pdata_len, 543b07682b6SSantosh Shilimkar bool can_wakeup, int irq0, int irq1) 544b07682b6SSantosh Shilimkar { 545b07682b6SSantosh Shilimkar return add_numbered_child(chip, name, -1, pdata, pdata_len, 546b07682b6SSantosh Shilimkar can_wakeup, irq0, irq1); 547b07682b6SSantosh Shilimkar } 548b07682b6SSantosh Shilimkar 549b07682b6SSantosh Shilimkar static struct device * 550b07682b6SSantosh Shilimkar add_regulator_linked(int num, struct regulator_init_data *pdata, 551b07682b6SSantosh Shilimkar struct regulator_consumer_supply *consumers, 552b07682b6SSantosh Shilimkar unsigned num_consumers) 553b07682b6SSantosh Shilimkar { 554e8deb28cSBalaji T K unsigned sub_chip_id; 555b07682b6SSantosh Shilimkar /* regulator framework demands init_data ... */ 556b07682b6SSantosh Shilimkar if (!pdata) 557b07682b6SSantosh Shilimkar return NULL; 558b07682b6SSantosh Shilimkar 559b07682b6SSantosh Shilimkar if (consumers) { 560b07682b6SSantosh Shilimkar pdata->consumer_supplies = consumers; 561b07682b6SSantosh Shilimkar pdata->num_consumer_supplies = num_consumers; 562b07682b6SSantosh Shilimkar } 563b07682b6SSantosh Shilimkar 564b07682b6SSantosh Shilimkar /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ 565e8deb28cSBalaji T K sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; 566e8deb28cSBalaji T K return add_numbered_child(sub_chip_id, "twl_reg", num, 567b07682b6SSantosh Shilimkar pdata, sizeof(*pdata), false, 0, 0); 568b07682b6SSantosh Shilimkar } 569b07682b6SSantosh Shilimkar 570b07682b6SSantosh Shilimkar static struct device * 571b07682b6SSantosh Shilimkar add_regulator(int num, struct regulator_init_data *pdata) 572b07682b6SSantosh Shilimkar { 573b07682b6SSantosh Shilimkar return add_regulator_linked(num, pdata, NULL, 0); 574b07682b6SSantosh Shilimkar } 575b07682b6SSantosh Shilimkar 576b07682b6SSantosh Shilimkar /* 577b07682b6SSantosh Shilimkar * NOTE: We know the first 8 IRQs after pdata->base_irq are 578b07682b6SSantosh Shilimkar * for the PIH, and the next are for the PWR_INT SIH, since 579b07682b6SSantosh Shilimkar * that's how twl_init_irq() sets things up. 580b07682b6SSantosh Shilimkar */ 581b07682b6SSantosh Shilimkar 582b07682b6SSantosh Shilimkar static int 583b07682b6SSantosh Shilimkar add_children(struct twl4030_platform_data *pdata, unsigned long features) 584b07682b6SSantosh Shilimkar { 585b07682b6SSantosh Shilimkar struct device *child; 586e8deb28cSBalaji T K unsigned sub_chip_id; 587b07682b6SSantosh Shilimkar 588b07682b6SSantosh Shilimkar if (twl_has_gpio() && pdata->gpio) { 589fc7b92fcSBalaji T K child = add_child(SUB_CHIP_ID1, "twl4030_gpio", 590b07682b6SSantosh Shilimkar pdata->gpio, sizeof(*pdata->gpio), 591fc7b92fcSBalaji T K false, pdata->irq_base + GPIO_INTR_OFFSET, 0); 592b07682b6SSantosh Shilimkar if (IS_ERR(child)) 593b07682b6SSantosh Shilimkar return PTR_ERR(child); 594b07682b6SSantosh Shilimkar } 595b07682b6SSantosh Shilimkar 596b07682b6SSantosh Shilimkar if (twl_has_keypad() && pdata->keypad) { 597fc7b92fcSBalaji T K child = add_child(SUB_CHIP_ID2, "twl4030_keypad", 598b07682b6SSantosh Shilimkar pdata->keypad, sizeof(*pdata->keypad), 599fc7b92fcSBalaji T K true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0); 600b07682b6SSantosh Shilimkar if (IS_ERR(child)) 601b07682b6SSantosh Shilimkar return PTR_ERR(child); 602b07682b6SSantosh Shilimkar } 603b07682b6SSantosh Shilimkar 604b07682b6SSantosh Shilimkar if (twl_has_madc() && pdata->madc) { 605b07682b6SSantosh Shilimkar child = add_child(2, "twl4030_madc", 606b07682b6SSantosh Shilimkar pdata->madc, sizeof(*pdata->madc), 607fc7b92fcSBalaji T K true, pdata->irq_base + MADC_INTR_OFFSET, 0); 608b07682b6SSantosh Shilimkar if (IS_ERR(child)) 609b07682b6SSantosh Shilimkar return PTR_ERR(child); 610b07682b6SSantosh Shilimkar } 611b07682b6SSantosh Shilimkar 612b07682b6SSantosh Shilimkar if (twl_has_rtc()) { 613b07682b6SSantosh Shilimkar /* 614b07682b6SSantosh Shilimkar * REVISIT platform_data here currently might expose the 615b07682b6SSantosh Shilimkar * "msecure" line ... but for now we just expect board 616b07682b6SSantosh Shilimkar * setup to tell the chip "it's always ok to SET_TIME". 617b07682b6SSantosh Shilimkar * Eventually, Linux might become more aware of such 618b07682b6SSantosh Shilimkar * HW security concerns, and "least privilege". 619b07682b6SSantosh Shilimkar */ 620e8deb28cSBalaji T K sub_chip_id = twl_map[TWL_MODULE_RTC].sid; 621e8deb28cSBalaji T K child = add_child(sub_chip_id, "twl_rtc", 622b07682b6SSantosh Shilimkar NULL, 0, 623fc7b92fcSBalaji T K true, pdata->irq_base + RTC_INTR_OFFSET, 0); 624b07682b6SSantosh Shilimkar if (IS_ERR(child)) 625b07682b6SSantosh Shilimkar return PTR_ERR(child); 626b07682b6SSantosh Shilimkar } 627b07682b6SSantosh Shilimkar 6289da66539SRajendra Nayak if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { 629b07682b6SSantosh Shilimkar 630b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb1v5 = { 631b07682b6SSantosh Shilimkar .supply = "usb1v5", 632b07682b6SSantosh Shilimkar }; 633b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb1v8 = { 634b07682b6SSantosh Shilimkar .supply = "usb1v8", 635b07682b6SSantosh Shilimkar }; 636b07682b6SSantosh Shilimkar static struct regulator_consumer_supply usb3v1 = { 637b07682b6SSantosh Shilimkar .supply = "usb3v1", 638b07682b6SSantosh Shilimkar }; 639b07682b6SSantosh Shilimkar 640b07682b6SSantosh Shilimkar /* First add the regulators so that they can be used by transceiver */ 641b07682b6SSantosh Shilimkar if (twl_has_regulator()) { 642b07682b6SSantosh Shilimkar /* this is a template that gets copied */ 643b07682b6SSantosh Shilimkar struct regulator_init_data usb_fixed = { 644b07682b6SSantosh Shilimkar .constraints.valid_modes_mask = 645b07682b6SSantosh Shilimkar REGULATOR_MODE_NORMAL 646b07682b6SSantosh Shilimkar | REGULATOR_MODE_STANDBY, 647b07682b6SSantosh Shilimkar .constraints.valid_ops_mask = 648b07682b6SSantosh Shilimkar REGULATOR_CHANGE_MODE 649b07682b6SSantosh Shilimkar | REGULATOR_CHANGE_STATUS, 650b07682b6SSantosh Shilimkar }; 651b07682b6SSantosh Shilimkar 652b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB1V5, 653b07682b6SSantosh Shilimkar &usb_fixed, &usb1v5, 1); 654b07682b6SSantosh Shilimkar if (IS_ERR(child)) 655b07682b6SSantosh Shilimkar return PTR_ERR(child); 656b07682b6SSantosh Shilimkar 657b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB1V8, 658b07682b6SSantosh Shilimkar &usb_fixed, &usb1v8, 1); 659b07682b6SSantosh Shilimkar if (IS_ERR(child)) 660b07682b6SSantosh Shilimkar return PTR_ERR(child); 661b07682b6SSantosh Shilimkar 662b07682b6SSantosh Shilimkar child = add_regulator_linked(TWL4030_REG_VUSB3V1, 663b07682b6SSantosh Shilimkar &usb_fixed, &usb3v1, 1); 664b07682b6SSantosh Shilimkar if (IS_ERR(child)) 665b07682b6SSantosh Shilimkar return PTR_ERR(child); 666b07682b6SSantosh Shilimkar 667b07682b6SSantosh Shilimkar } 668b07682b6SSantosh Shilimkar 669b07682b6SSantosh Shilimkar child = add_child(0, "twl4030_usb", 670b07682b6SSantosh Shilimkar pdata->usb, sizeof(*pdata->usb), 671b07682b6SSantosh Shilimkar true, 672b07682b6SSantosh Shilimkar /* irq0 = USB_PRES, irq1 = USB */ 673fc7b92fcSBalaji T K pdata->irq_base + USB_PRES_INTR_OFFSET, 674fc7b92fcSBalaji T K pdata->irq_base + USB_INTR_OFFSET); 675b07682b6SSantosh Shilimkar 676b07682b6SSantosh Shilimkar if (IS_ERR(child)) 677b07682b6SSantosh Shilimkar return PTR_ERR(child); 678b07682b6SSantosh Shilimkar 679b07682b6SSantosh Shilimkar /* we need to connect regulators to this transceiver */ 680b07682b6SSantosh Shilimkar if (twl_has_regulator() && child) { 681b07682b6SSantosh Shilimkar usb1v5.dev = child; 682b07682b6SSantosh Shilimkar usb1v8.dev = child; 683b07682b6SSantosh Shilimkar usb3v1.dev = child; 684b07682b6SSantosh Shilimkar } 685b07682b6SSantosh Shilimkar } 686e70357e3SHema HK if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { 687e70357e3SHema HK 688e70357e3SHema HK static struct regulator_consumer_supply usb3v3 = { 689e70357e3SHema HK .supply = "vusb", 690e70357e3SHema HK }; 691e70357e3SHema HK 692e70357e3SHema HK if (twl_has_regulator()) { 693e70357e3SHema HK /* this is a template that gets copied */ 694e70357e3SHema HK struct regulator_init_data usb_fixed = { 695e70357e3SHema HK .constraints.valid_modes_mask = 696e70357e3SHema HK REGULATOR_MODE_NORMAL 697e70357e3SHema HK | REGULATOR_MODE_STANDBY, 698e70357e3SHema HK .constraints.valid_ops_mask = 699e70357e3SHema HK REGULATOR_CHANGE_MODE 700e70357e3SHema HK | REGULATOR_CHANGE_STATUS, 701e70357e3SHema HK }; 702e70357e3SHema HK 703e70357e3SHema HK child = add_regulator_linked(TWL6030_REG_VUSB, 704e70357e3SHema HK &usb_fixed, &usb3v3, 1); 705e70357e3SHema HK if (IS_ERR(child)) 706e70357e3SHema HK return PTR_ERR(child); 707e70357e3SHema HK } 708e70357e3SHema HK 709e70357e3SHema HK child = add_child(0, "twl6030_usb", 710e70357e3SHema HK pdata->usb, sizeof(*pdata->usb), 711e70357e3SHema HK true, 712e70357e3SHema HK /* irq1 = VBUS_PRES, irq0 = USB ID */ 713e70357e3SHema HK pdata->irq_base + USBOTG_INTR_OFFSET, 714e70357e3SHema HK pdata->irq_base + USB_PRES_INTR_OFFSET); 715e70357e3SHema HK 716e70357e3SHema HK if (IS_ERR(child)) 717e70357e3SHema HK return PTR_ERR(child); 718e70357e3SHema HK /* we need to connect regulators to this transceiver */ 719e70357e3SHema HK if (twl_has_regulator() && child) 720e70357e3SHema HK usb3v3.dev = child; 721e70357e3SHema HK 722e70357e3SHema HK } 723b07682b6SSantosh Shilimkar 724153617fdSKeerthy if (twl_has_watchdog() && twl_class_is_4030()) { 725b07682b6SSantosh Shilimkar child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); 726b07682b6SSantosh Shilimkar if (IS_ERR(child)) 727b07682b6SSantosh Shilimkar return PTR_ERR(child); 728b07682b6SSantosh Shilimkar } 729b07682b6SSantosh Shilimkar 730153617fdSKeerthy if (twl_has_pwrbutton() && twl_class_is_4030()) { 731b07682b6SSantosh Shilimkar child = add_child(1, "twl4030_pwrbutton", 732b07682b6SSantosh Shilimkar NULL, 0, true, pdata->irq_base + 8 + 0, 0); 733b07682b6SSantosh Shilimkar if (IS_ERR(child)) 734b07682b6SSantosh Shilimkar return PTR_ERR(child); 735b07682b6SSantosh Shilimkar } 736b07682b6SSantosh Shilimkar 737d62abe56SMisael Lopez Cruz if (twl_has_codec() && pdata->codec && twl_class_is_4030()) { 738d62abe56SMisael Lopez Cruz sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 739f0fba2adSLiam Girdwood child = add_child(sub_chip_id, "twl4030-audio", 740d62abe56SMisael Lopez Cruz pdata->codec, sizeof(*pdata->codec), 741d62abe56SMisael Lopez Cruz false, 0, 0); 742d62abe56SMisael Lopez Cruz if (IS_ERR(child)) 743d62abe56SMisael Lopez Cruz return PTR_ERR(child); 744d62abe56SMisael Lopez Cruz } 745d62abe56SMisael Lopez Cruz 746f0fba2adSLiam Girdwood /* Phoenix codec driver is probed directly atm */ 747d62abe56SMisael Lopez Cruz if (twl_has_codec() && pdata->codec && twl_class_is_6030()) { 748d62abe56SMisael Lopez Cruz sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; 749f0fba2adSLiam Girdwood child = add_child(sub_chip_id, "twl6040-codec", 750b07682b6SSantosh Shilimkar pdata->codec, sizeof(*pdata->codec), 751b07682b6SSantosh Shilimkar false, 0, 0); 752b07682b6SSantosh Shilimkar if (IS_ERR(child)) 753b07682b6SSantosh Shilimkar return PTR_ERR(child); 754b07682b6SSantosh Shilimkar } 755b07682b6SSantosh Shilimkar 7569da66539SRajendra Nayak /* twl4030 regulators */ 7579da66539SRajendra Nayak if (twl_has_regulator() && twl_class_is_4030()) { 758b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1); 759b07682b6SSantosh Shilimkar if (IS_ERR(child)) 760b07682b6SSantosh Shilimkar return PTR_ERR(child); 761b07682b6SSantosh Shilimkar 762b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VIO, pdata->vio); 763b07682b6SSantosh Shilimkar if (IS_ERR(child)) 764b07682b6SSantosh Shilimkar return PTR_ERR(child); 765b07682b6SSantosh Shilimkar 766b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1); 767b07682b6SSantosh Shilimkar if (IS_ERR(child)) 768b07682b6SSantosh Shilimkar return PTR_ERR(child); 769b07682b6SSantosh Shilimkar 770b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2); 771b07682b6SSantosh Shilimkar if (IS_ERR(child)) 772b07682b6SSantosh Shilimkar return PTR_ERR(child); 773b07682b6SSantosh Shilimkar 774b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1); 775b07682b6SSantosh Shilimkar if (IS_ERR(child)) 776b07682b6SSantosh Shilimkar return PTR_ERR(child); 777b07682b6SSantosh Shilimkar 778b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VDAC, pdata->vdac); 779b07682b6SSantosh Shilimkar if (IS_ERR(child)) 780b07682b6SSantosh Shilimkar return PTR_ERR(child); 781b07682b6SSantosh Shilimkar 782b07682b6SSantosh Shilimkar child = add_regulator((features & TWL4030_VAUX2) 783b07682b6SSantosh Shilimkar ? TWL4030_REG_VAUX2_4030 784b07682b6SSantosh Shilimkar : TWL4030_REG_VAUX2, 785b07682b6SSantosh Shilimkar pdata->vaux2); 786b07682b6SSantosh Shilimkar if (IS_ERR(child)) 787b07682b6SSantosh Shilimkar return PTR_ERR(child); 788b07682b6SSantosh Shilimkar 789b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1); 790b07682b6SSantosh Shilimkar if (IS_ERR(child)) 791b07682b6SSantosh Shilimkar return PTR_ERR(child); 792b07682b6SSantosh Shilimkar 793b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2); 794b07682b6SSantosh Shilimkar if (IS_ERR(child)) 795b07682b6SSantosh Shilimkar return PTR_ERR(child); 796b07682b6SSantosh Shilimkar 797b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig); 798b07682b6SSantosh Shilimkar if (IS_ERR(child)) 799b07682b6SSantosh Shilimkar return PTR_ERR(child); 800b07682b6SSantosh Shilimkar } 801b07682b6SSantosh Shilimkar 802b07682b6SSantosh Shilimkar /* maybe add LDOs that are omitted on cost-reduced parts */ 8039da66539SRajendra Nayak if (twl_has_regulator() && !(features & TPS_SUBSET) 8049da66539SRajendra Nayak && twl_class_is_4030()) { 805b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2); 806b07682b6SSantosh Shilimkar if (IS_ERR(child)) 807b07682b6SSantosh Shilimkar return PTR_ERR(child); 808b07682b6SSantosh Shilimkar 809b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2); 810b07682b6SSantosh Shilimkar if (IS_ERR(child)) 811b07682b6SSantosh Shilimkar return PTR_ERR(child); 812b07682b6SSantosh Shilimkar 813b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VSIM, pdata->vsim); 814b07682b6SSantosh Shilimkar if (IS_ERR(child)) 815b07682b6SSantosh Shilimkar return PTR_ERR(child); 816b07682b6SSantosh Shilimkar 817b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1); 818b07682b6SSantosh Shilimkar if (IS_ERR(child)) 819b07682b6SSantosh Shilimkar return PTR_ERR(child); 820b07682b6SSantosh Shilimkar 821b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3); 822b07682b6SSantosh Shilimkar if (IS_ERR(child)) 823b07682b6SSantosh Shilimkar return PTR_ERR(child); 824b07682b6SSantosh Shilimkar 825b07682b6SSantosh Shilimkar child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4); 826b07682b6SSantosh Shilimkar if (IS_ERR(child)) 827b07682b6SSantosh Shilimkar return PTR_ERR(child); 828b07682b6SSantosh Shilimkar } 829b07682b6SSantosh Shilimkar 8309da66539SRajendra Nayak /* twl6030 regulators */ 8319da66539SRajendra Nayak if (twl_has_regulator() && twl_class_is_6030()) { 8329da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc); 8339da66539SRajendra Nayak if (IS_ERR(child)) 8349da66539SRajendra Nayak return PTR_ERR(child); 8359da66539SRajendra Nayak 8369da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VPP, pdata->vpp); 8379da66539SRajendra Nayak if (IS_ERR(child)) 8389da66539SRajendra Nayak return PTR_ERR(child); 8399da66539SRajendra Nayak 8409da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim); 8419da66539SRajendra Nayak if (IS_ERR(child)) 8429da66539SRajendra Nayak return PTR_ERR(child); 8439da66539SRajendra Nayak 8449da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VANA, pdata->vana); 8459da66539SRajendra Nayak if (IS_ERR(child)) 8469da66539SRajendra Nayak return PTR_ERR(child); 8479da66539SRajendra Nayak 8489da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio); 8499da66539SRajendra Nayak if (IS_ERR(child)) 8509da66539SRajendra Nayak return PTR_ERR(child); 8519da66539SRajendra Nayak 8529da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VDAC, pdata->vdac); 8539da66539SRajendra Nayak if (IS_ERR(child)) 8549da66539SRajendra Nayak return PTR_ERR(child); 8559da66539SRajendra Nayak 8569da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1); 8579da66539SRajendra Nayak if (IS_ERR(child)) 8589da66539SRajendra Nayak return PTR_ERR(child); 8599da66539SRajendra Nayak 8609da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2); 8619da66539SRajendra Nayak if (IS_ERR(child)) 8629da66539SRajendra Nayak return PTR_ERR(child); 8639da66539SRajendra Nayak 8649da66539SRajendra Nayak child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3); 8659da66539SRajendra Nayak if (IS_ERR(child)) 8669da66539SRajendra Nayak return PTR_ERR(child); 8678e6de4a3SBalaji T K 8688e6de4a3SBalaji T K child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg); 8698e6de4a3SBalaji T K if (IS_ERR(child)) 8708e6de4a3SBalaji T K return PTR_ERR(child); 8719da66539SRajendra Nayak } 8729da66539SRajendra Nayak 87311c39c4bSGrazvydas Ignotas if (twl_has_bci() && pdata->bci && 87411c39c4bSGrazvydas Ignotas !(features & (TPS_SUBSET | TWL5031))) { 87511c39c4bSGrazvydas Ignotas child = add_child(3, "twl4030_bci", 87611c39c4bSGrazvydas Ignotas pdata->bci, sizeof(*pdata->bci), false, 87711c39c4bSGrazvydas Ignotas /* irq0 = CHG_PRES, irq1 = BCI */ 87811c39c4bSGrazvydas Ignotas pdata->irq_base + BCI_PRES_INTR_OFFSET, 87911c39c4bSGrazvydas Ignotas pdata->irq_base + BCI_INTR_OFFSET); 88011c39c4bSGrazvydas Ignotas if (IS_ERR(child)) 88111c39c4bSGrazvydas Ignotas return PTR_ERR(child); 88211c39c4bSGrazvydas Ignotas } 88311c39c4bSGrazvydas Ignotas 884b07682b6SSantosh Shilimkar return 0; 885b07682b6SSantosh Shilimkar } 886b07682b6SSantosh Shilimkar 887b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 888b07682b6SSantosh Shilimkar 889b07682b6SSantosh Shilimkar /* 890b07682b6SSantosh Shilimkar * These three functions initialize the on-chip clock framework, 891b07682b6SSantosh Shilimkar * letting it generate the right frequencies for USB, MADC, and 892b07682b6SSantosh Shilimkar * other purposes. 893b07682b6SSantosh Shilimkar */ 894b07682b6SSantosh Shilimkar static inline int __init protect_pm_master(void) 895b07682b6SSantosh Shilimkar { 896b07682b6SSantosh Shilimkar int e = 0; 897b07682b6SSantosh Shilimkar 89849e6f87eSFelipe Balbi e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, 89949e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 900b07682b6SSantosh Shilimkar return e; 901b07682b6SSantosh Shilimkar } 902b07682b6SSantosh Shilimkar 903b07682b6SSantosh Shilimkar static inline int __init unprotect_pm_master(void) 904b07682b6SSantosh Shilimkar { 905b07682b6SSantosh Shilimkar int e = 0; 906b07682b6SSantosh Shilimkar 90749e6f87eSFelipe Balbi e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 90849e6f87eSFelipe Balbi TWL4030_PM_MASTER_KEY_CFG1, 90949e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 91049e6f87eSFelipe Balbi e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 91149e6f87eSFelipe Balbi TWL4030_PM_MASTER_KEY_CFG2, 91249e6f87eSFelipe Balbi TWL4030_PM_MASTER_PROTECT_KEY); 91349e6f87eSFelipe Balbi 914b07682b6SSantosh Shilimkar return e; 915b07682b6SSantosh Shilimkar } 916b07682b6SSantosh Shilimkar 917b07682b6SSantosh Shilimkar static void clocks_init(struct device *dev, 918b07682b6SSantosh Shilimkar struct twl4030_clock_init_data *clock) 919b07682b6SSantosh Shilimkar { 920b07682b6SSantosh Shilimkar int e = 0; 921b07682b6SSantosh Shilimkar struct clk *osc; 922b07682b6SSantosh Shilimkar u32 rate; 923b07682b6SSantosh Shilimkar u8 ctrl = HFCLK_FREQ_26_MHZ; 924b07682b6SSantosh Shilimkar 925b07682b6SSantosh Shilimkar #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) 926b07682b6SSantosh Shilimkar if (cpu_is_omap2430()) 927b07682b6SSantosh Shilimkar osc = clk_get(dev, "osc_ck"); 928b07682b6SSantosh Shilimkar else 929b07682b6SSantosh Shilimkar osc = clk_get(dev, "osc_sys_ck"); 930b07682b6SSantosh Shilimkar 931b07682b6SSantosh Shilimkar if (IS_ERR(osc)) { 932fc7b92fcSBalaji T K printk(KERN_WARNING "Skipping twl internal clock init and " 933b07682b6SSantosh Shilimkar "using bootloader value (unknown osc rate)\n"); 934b07682b6SSantosh Shilimkar return; 935b07682b6SSantosh Shilimkar } 936b07682b6SSantosh Shilimkar 937b07682b6SSantosh Shilimkar rate = clk_get_rate(osc); 938b07682b6SSantosh Shilimkar clk_put(osc); 939b07682b6SSantosh Shilimkar 940b07682b6SSantosh Shilimkar #else 941b07682b6SSantosh Shilimkar /* REVISIT for non-OMAP systems, pass the clock rate from 942b07682b6SSantosh Shilimkar * board init code, using platform_data. 943b07682b6SSantosh Shilimkar */ 944b07682b6SSantosh Shilimkar osc = ERR_PTR(-EIO); 945b07682b6SSantosh Shilimkar 946fc7b92fcSBalaji T K printk(KERN_WARNING "Skipping twl internal clock init and " 947b07682b6SSantosh Shilimkar "using bootloader value (unknown osc rate)\n"); 948b07682b6SSantosh Shilimkar 949b07682b6SSantosh Shilimkar return; 950b07682b6SSantosh Shilimkar #endif 951b07682b6SSantosh Shilimkar 952b07682b6SSantosh Shilimkar switch (rate) { 953b07682b6SSantosh Shilimkar case 19200000: 954b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_19p2_MHZ; 955b07682b6SSantosh Shilimkar break; 956b07682b6SSantosh Shilimkar case 26000000: 957b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_26_MHZ; 958b07682b6SSantosh Shilimkar break; 959b07682b6SSantosh Shilimkar case 38400000: 960b07682b6SSantosh Shilimkar ctrl = HFCLK_FREQ_38p4_MHZ; 961b07682b6SSantosh Shilimkar break; 962b07682b6SSantosh Shilimkar } 963b07682b6SSantosh Shilimkar 964b07682b6SSantosh Shilimkar ctrl |= HIGH_PERF_SQ; 965b07682b6SSantosh Shilimkar if (clock && clock->ck32k_lowpwr_enable) 966b07682b6SSantosh Shilimkar ctrl |= CK32K_LOWPWR_EN; 967b07682b6SSantosh Shilimkar 968b07682b6SSantosh Shilimkar e |= unprotect_pm_master(); 969b07682b6SSantosh Shilimkar /* effect->MADC+USB ck en */ 970fc7b92fcSBalaji T K e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); 971b07682b6SSantosh Shilimkar e |= protect_pm_master(); 972b07682b6SSantosh Shilimkar 973b07682b6SSantosh Shilimkar if (e < 0) 974b07682b6SSantosh Shilimkar pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); 975b07682b6SSantosh Shilimkar } 976b07682b6SSantosh Shilimkar 977b07682b6SSantosh Shilimkar /*----------------------------------------------------------------------*/ 978b07682b6SSantosh Shilimkar 979e8deb28cSBalaji T K int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 980e8deb28cSBalaji T K int twl4030_exit_irq(void); 981e8deb28cSBalaji T K int twl4030_init_chip_irq(const char *chip); 982e8deb28cSBalaji T K int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); 983e8deb28cSBalaji T K int twl6030_exit_irq(void); 984b07682b6SSantosh Shilimkar 985fc7b92fcSBalaji T K static int twl_remove(struct i2c_client *client) 986b07682b6SSantosh Shilimkar { 987b07682b6SSantosh Shilimkar unsigned i; 988b07682b6SSantosh Shilimkar int status; 989b07682b6SSantosh Shilimkar 990e8deb28cSBalaji T K if (twl_class_is_4030()) 991e8deb28cSBalaji T K status = twl4030_exit_irq(); 992e8deb28cSBalaji T K else 993e8deb28cSBalaji T K status = twl6030_exit_irq(); 994e8deb28cSBalaji T K 995b07682b6SSantosh Shilimkar if (status < 0) 996b07682b6SSantosh Shilimkar return status; 997b07682b6SSantosh Shilimkar 998fc7b92fcSBalaji T K for (i = 0; i < TWL_NUM_SLAVES; i++) { 999fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[i]; 1000b07682b6SSantosh Shilimkar 1001b07682b6SSantosh Shilimkar if (twl->client && twl->client != client) 1002b07682b6SSantosh Shilimkar i2c_unregister_device(twl->client); 1003fc7b92fcSBalaji T K twl_modules[i].client = NULL; 1004b07682b6SSantosh Shilimkar } 1005b07682b6SSantosh Shilimkar inuse = false; 1006b07682b6SSantosh Shilimkar return 0; 1007b07682b6SSantosh Shilimkar } 1008b07682b6SSantosh Shilimkar 1009b07682b6SSantosh Shilimkar /* NOTE: this driver only handles a single twl4030/tps659x0 chip */ 10105b9cecd6SBryan Wu static int __devinit 1011fc7b92fcSBalaji T K twl_probe(struct i2c_client *client, const struct i2c_device_id *id) 1012b07682b6SSantosh Shilimkar { 1013b07682b6SSantosh Shilimkar int status; 1014b07682b6SSantosh Shilimkar unsigned i; 1015b07682b6SSantosh Shilimkar struct twl4030_platform_data *pdata = client->dev.platform_data; 1016a29aaf55SMoiz Sonasath u8 temp; 1017b07682b6SSantosh Shilimkar 1018b07682b6SSantosh Shilimkar if (!pdata) { 1019b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "no platform data?\n"); 1020b07682b6SSantosh Shilimkar return -EINVAL; 1021b07682b6SSantosh Shilimkar } 1022b07682b6SSantosh Shilimkar 1023b07682b6SSantosh Shilimkar if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { 1024b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "can't talk I2C?\n"); 1025b07682b6SSantosh Shilimkar return -EIO; 1026b07682b6SSantosh Shilimkar } 1027b07682b6SSantosh Shilimkar 1028b07682b6SSantosh Shilimkar if (inuse) { 1029b07682b6SSantosh Shilimkar dev_dbg(&client->dev, "driver is already in use\n"); 1030b07682b6SSantosh Shilimkar return -EBUSY; 1031b07682b6SSantosh Shilimkar } 1032b07682b6SSantosh Shilimkar 1033fc7b92fcSBalaji T K for (i = 0; i < TWL_NUM_SLAVES; i++) { 1034fc7b92fcSBalaji T K struct twl_client *twl = &twl_modules[i]; 1035b07682b6SSantosh Shilimkar 1036b07682b6SSantosh Shilimkar twl->address = client->addr + i; 1037b07682b6SSantosh Shilimkar if (i == 0) 1038b07682b6SSantosh Shilimkar twl->client = client; 1039b07682b6SSantosh Shilimkar else { 1040b07682b6SSantosh Shilimkar twl->client = i2c_new_dummy(client->adapter, 1041b07682b6SSantosh Shilimkar twl->address); 1042b07682b6SSantosh Shilimkar if (!twl->client) { 1043b07682b6SSantosh Shilimkar dev_err(&client->dev, 1044b07682b6SSantosh Shilimkar "can't attach client %d\n", i); 1045b07682b6SSantosh Shilimkar status = -ENOMEM; 1046b07682b6SSantosh Shilimkar goto fail; 1047b07682b6SSantosh Shilimkar } 1048b07682b6SSantosh Shilimkar } 1049b07682b6SSantosh Shilimkar mutex_init(&twl->xfer_lock); 1050b07682b6SSantosh Shilimkar } 1051b07682b6SSantosh Shilimkar inuse = true; 1052e8deb28cSBalaji T K if ((id->driver_data) & TWL6030_CLASS) { 1053e8deb28cSBalaji T K twl_id = TWL6030_CLASS_ID; 1054e8deb28cSBalaji T K twl_map = &twl6030_map[0]; 1055e8deb28cSBalaji T K } else { 1056e8deb28cSBalaji T K twl_id = TWL4030_CLASS_ID; 1057e8deb28cSBalaji T K twl_map = &twl4030_map[0]; 1058e8deb28cSBalaji T K } 1059b07682b6SSantosh Shilimkar 1060b07682b6SSantosh Shilimkar /* setup clock framework */ 1061b07682b6SSantosh Shilimkar clocks_init(&client->dev, pdata->clock); 1062b07682b6SSantosh Shilimkar 1063b07682b6SSantosh Shilimkar /* load power event scripts */ 1064b07682b6SSantosh Shilimkar if (twl_has_power() && pdata->power) 1065b07682b6SSantosh Shilimkar twl4030_power_init(pdata->power); 1066b07682b6SSantosh Shilimkar 1067b07682b6SSantosh Shilimkar /* Maybe init the T2 Interrupt subsystem */ 1068b07682b6SSantosh Shilimkar if (client->irq 1069b07682b6SSantosh Shilimkar && pdata->irq_base 1070b07682b6SSantosh Shilimkar && pdata->irq_end > pdata->irq_base) { 1071e8deb28cSBalaji T K if (twl_class_is_4030()) { 1072e8deb28cSBalaji T K twl4030_init_chip_irq(id->name); 1073e8deb28cSBalaji T K status = twl4030_init_irq(client->irq, pdata->irq_base, 1074e8deb28cSBalaji T K pdata->irq_end); 1075e8deb28cSBalaji T K } else { 1076e8deb28cSBalaji T K status = twl6030_init_irq(client->irq, pdata->irq_base, 1077e8deb28cSBalaji T K pdata->irq_end); 1078e8deb28cSBalaji T K } 1079e8deb28cSBalaji T K 1080b07682b6SSantosh Shilimkar if (status < 0) 1081b07682b6SSantosh Shilimkar goto fail; 1082b07682b6SSantosh Shilimkar } 1083b07682b6SSantosh Shilimkar 1084a29aaf55SMoiz Sonasath /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. 1085a29aaf55SMoiz Sonasath * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, 1086a29aaf55SMoiz Sonasath * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. 1087a29aaf55SMoiz Sonasath */ 1088a29aaf55SMoiz Sonasath 1089a29aaf55SMoiz Sonasath if (twl_class_is_4030()) { 1090a29aaf55SMoiz Sonasath twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); 1091a29aaf55SMoiz Sonasath temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ 1092a29aaf55SMoiz Sonasath I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); 1093a29aaf55SMoiz Sonasath twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); 1094a29aaf55SMoiz Sonasath } 1095a29aaf55SMoiz Sonasath 1096b07682b6SSantosh Shilimkar status = add_children(pdata, id->driver_data); 1097b07682b6SSantosh Shilimkar fail: 1098b07682b6SSantosh Shilimkar if (status < 0) 1099fc7b92fcSBalaji T K twl_remove(client); 1100b07682b6SSantosh Shilimkar return status; 1101b07682b6SSantosh Shilimkar } 1102b07682b6SSantosh Shilimkar 1103fc7b92fcSBalaji T K static const struct i2c_device_id twl_ids[] = { 1104b07682b6SSantosh Shilimkar { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ 1105b07682b6SSantosh Shilimkar { "twl5030", 0 }, /* T2 updated */ 1106b07682b6SSantosh Shilimkar { "twl5031", TWL5031 }, /* TWL5030 updated */ 1107b07682b6SSantosh Shilimkar { "tps65950", 0 }, /* catalog version of twl5030 */ 1108b07682b6SSantosh Shilimkar { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ 1109b07682b6SSantosh Shilimkar { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ 1110e8deb28cSBalaji T K { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ 1111b07682b6SSantosh Shilimkar { /* end of list */ }, 1112b07682b6SSantosh Shilimkar }; 1113fc7b92fcSBalaji T K MODULE_DEVICE_TABLE(i2c, twl_ids); 1114b07682b6SSantosh Shilimkar 1115b07682b6SSantosh Shilimkar /* One Client Driver , 4 Clients */ 1116fc7b92fcSBalaji T K static struct i2c_driver twl_driver = { 1117b07682b6SSantosh Shilimkar .driver.name = DRIVER_NAME, 1118fc7b92fcSBalaji T K .id_table = twl_ids, 1119fc7b92fcSBalaji T K .probe = twl_probe, 1120fc7b92fcSBalaji T K .remove = twl_remove, 1121b07682b6SSantosh Shilimkar }; 1122b07682b6SSantosh Shilimkar 1123fc7b92fcSBalaji T K static int __init twl_init(void) 1124b07682b6SSantosh Shilimkar { 1125fc7b92fcSBalaji T K return i2c_add_driver(&twl_driver); 1126b07682b6SSantosh Shilimkar } 1127fc7b92fcSBalaji T K subsys_initcall(twl_init); 1128b07682b6SSantosh Shilimkar 1129fc7b92fcSBalaji T K static void __exit twl_exit(void) 1130b07682b6SSantosh Shilimkar { 1131fc7b92fcSBalaji T K i2c_del_driver(&twl_driver); 1132b07682b6SSantosh Shilimkar } 1133fc7b92fcSBalaji T K module_exit(twl_exit); 1134b07682b6SSantosh Shilimkar 1135b07682b6SSantosh Shilimkar MODULE_AUTHOR("Texas Instruments, Inc."); 1136fc7b92fcSBalaji T K MODULE_DESCRIPTION("I2C Core interface for TWL"); 1137b07682b6SSantosh Shilimkar MODULE_LICENSE("GPL"); 1138