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* twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM
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* and audio CODEC devices
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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* Modifications to defer interrupt handling to a kernel thread:
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* Copyright (C) 2006 MontaVista Software, Inc.
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* Based on tlv320aic23.c:
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* Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
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* Code cleanup and modifications to IRQ handler.
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* by syed khasim <x0khasim@ti.com>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include <linux/init.h>
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#include <linux/mutex.h>
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/regulator/machine.h>
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#include <linux/i2c.h>
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#include <linux/i2c/twl.h>
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#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
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* The TWL4030 "Triton 2" is one of a family of a multi-function "Power
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* Management and System Companion Device" chips originally designed for
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* use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
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* often at around 3 Mbit/sec, including for interrupt handling.
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* This driver core provides genirq support for the interrupts emitted,
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* by the various modules, and exports register access primitives.
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* FIXME this driver currently requires use of the first interrupt line
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* (and associated registers).
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#define DRIVER_NAME "twl"
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#if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
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#define twl_has_keypad() true
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#define twl_has_keypad() false
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#if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
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#define twl_has_gpio() true
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#define twl_has_gpio() false
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#if defined(CONFIG_REGULATOR_TWL4030) \
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|| defined(CONFIG_REGULATOR_TWL4030_MODULE)
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#define twl_has_regulator() true
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#define twl_has_regulator() false
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#if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
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#define twl_has_madc() true
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#define twl_has_madc() false
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#ifdef CONFIG_TWL4030_POWER
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#define twl_has_power() true
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#define twl_has_power() false
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#if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
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#define twl_has_rtc() true
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#define twl_has_rtc() false
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#if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\
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defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE)
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#define twl_has_usb() true
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#define twl_has_usb() false
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#if defined(CONFIG_TWL4030_WATCHDOG) || \
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defined(CONFIG_TWL4030_WATCHDOG_MODULE)
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#define twl_has_watchdog() true
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#define twl_has_watchdog() false
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#if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\
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defined(CONFIG_SND_SOC_TWL6040) || defined(CONFIG_SND_SOC_TWL6040_MODULE)
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#define twl_has_codec() true
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#define twl_has_codec() false
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#if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE)
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#define twl_has_bci() true
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#define twl_has_bci() false
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/* Triton Core internal information (BEGIN) */
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/* Last - for index max*/
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#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
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#define TWL_NUM_SLAVES 4
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#if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
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|| defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE)
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#define twl_has_pwrbutton() true
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#define twl_has_pwrbutton() false
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#define SUB_CHIP_ID0 0
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#define SUB_CHIP_ID1 1
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#define SUB_CHIP_ID2 2
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#define SUB_CHIP_ID3 3
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#define TWL_MODULE_LAST TWL4030_MODULE_LAST
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/* Base Address defns for twl4030_map[] */
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/* subchip/slave 0 - USB ID */
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#define TWL4030_BASEADD_USB 0x0000
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/* subchip/slave 1 - AUD ID */
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#define TWL4030_BASEADD_AUDIO_VOICE 0x0000
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#define TWL4030_BASEADD_GPIO 0x0098
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#define TWL4030_BASEADD_INTBR 0x0085
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#define TWL4030_BASEADD_PIH 0x0080
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#define TWL4030_BASEADD_TEST 0x004C
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/* subchip/slave 2 - AUX ID */
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#define TWL4030_BASEADD_INTERRUPTS 0x00B9
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#define TWL4030_BASEADD_LED 0x00EE
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#define TWL4030_BASEADD_MADC 0x0000
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#define TWL4030_BASEADD_MAIN_CHARGE 0x0074
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#define TWL4030_BASEADD_PRECHARGE 0x00AA
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#define TWL4030_BASEADD_PWM0 0x00F8
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#define TWL4030_BASEADD_PWM1 0x00FB
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#define TWL4030_BASEADD_PWMA 0x00EF
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#define TWL4030_BASEADD_PWMB 0x00F1
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#define TWL4030_BASEADD_KEYPAD 0x00D2
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#define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */
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#define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's
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/* subchip/slave 3 - POWER ID */
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#define TWL4030_BASEADD_BACKUP 0x0014
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#define TWL4030_BASEADD_INT 0x002E
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#define TWL4030_BASEADD_PM_MASTER 0x0036
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#define TWL4030_BASEADD_PM_RECEIVER 0x005B
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#define TWL4030_BASEADD_RTC 0x001C
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#define TWL4030_BASEADD_SECURED_REG 0x0000
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/* Triton Core internal information (END) */
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/* subchip/slave 0 0x48 - POWER */
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#define TWL6030_BASEADD_RTC 0x0000
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#define TWL6030_BASEADD_MEM 0x0017
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#define TWL6030_BASEADD_PM_MASTER 0x001F
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#define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
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#define TWL6030_BASEADD_PM_MISC 0x00E2
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#define TWL6030_BASEADD_PM_PUPD 0x00F0
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/* subchip/slave 1 0x49 - FEATURE */
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#define TWL6030_BASEADD_USB 0x0000
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#define TWL6030_BASEADD_GPADC_CTRL 0x002E
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#define TWL6030_BASEADD_AUX 0x0090
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#define TWL6030_BASEADD_PWM 0x00BA
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#define TWL6030_BASEADD_GASGAUGE 0x00C0
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#define TWL6030_BASEADD_PIH 0x00D0
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#define TWL6030_BASEADD_CHARGER 0x00E0
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/* subchip/slave 2 0x4A - DFT */
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#define TWL6030_BASEADD_DIEID 0x00C0
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/* subchip/slave 3 0x4B - AUDIO */
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#define TWL6030_BASEADD_AUDIO 0x0000
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#define TWL6030_BASEADD_RSV 0x0000
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#define TWL6030_BASEADD_ZERO 0x0000
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/* Few power values */
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#define R_CFG_BOOT 0x05
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/* some fields in R_CFG_BOOT */
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#define HFCLK_FREQ_19p2_MHZ (1 << 0)
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#define HFCLK_FREQ_26_MHZ (2 << 0)
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#define HFCLK_FREQ_38p4_MHZ (3 << 0)
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#define HIGH_PERF_SQ (1 << 3)
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#define CK32K_LOWPWR_EN (1 << 7)
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/* chip-specific feature flags, for i2c_device_id.driver_data */
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#define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
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#define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
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#define TWL5031 BIT(2) /* twl5031 has different registers */
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#define TWL6030_CLASS BIT(3) /* TWL6030 class */
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/*----------------------------------------------------------------------*/
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/* is driver active, bound to a chip? */
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static unsigned int twl_id;
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unsigned int twl_rev(void)
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EXPORT_SYMBOL(twl_rev);
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/* Structure for each TWL4030/TWL6030 Slave */
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struct i2c_client *client;
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/* max numb of i2c_msg required is for read =2 */
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struct i2c_msg xfer_msg[2];
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/* To lock access to xfer_msg */
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struct mutex xfer_lock;
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static struct twl_client twl_modules[TWL_NUM_SLAVES];
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/* mapping the module id to slave id and base address */
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unsigned char sid; /* Slave ID */
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unsigned char base; /* base address */
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static struct twl_mapping *twl_map;
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static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
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* NOTE: don't change this table without updating the
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* <linux/i2c/twl.h> defines for TWL4030_MODULE_*
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* so they continue to match the order in this table.
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{ 0, TWL4030_BASEADD_USB },
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{ 1, TWL4030_BASEADD_AUDIO_VOICE },
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{ 1, TWL4030_BASEADD_GPIO },
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{ 1, TWL4030_BASEADD_INTBR },
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{ 1, TWL4030_BASEADD_PIH },
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{ 1, TWL4030_BASEADD_TEST },
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{ 2, TWL4030_BASEADD_KEYPAD },
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{ 2, TWL4030_BASEADD_MADC },
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{ 2, TWL4030_BASEADD_INTERRUPTS },
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{ 2, TWL4030_BASEADD_LED },
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{ 2, TWL4030_BASEADD_MAIN_CHARGE },
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{ 2, TWL4030_BASEADD_PRECHARGE },
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{ 2, TWL4030_BASEADD_PWM0 },
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{ 2, TWL4030_BASEADD_PWM1 },
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{ 2, TWL4030_BASEADD_PWMA },
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{ 2, TWL4030_BASEADD_PWMB },
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{ 2, TWL5031_BASEADD_ACCESSORY },
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{ 2, TWL5031_BASEADD_INTERRUPTS },
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{ 3, TWL4030_BASEADD_BACKUP },
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{ 3, TWL4030_BASEADD_INT },
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{ 3, TWL4030_BASEADD_PM_MASTER },
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{ 3, TWL4030_BASEADD_PM_RECEIVER },
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{ 3, TWL4030_BASEADD_RTC },
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{ 3, TWL4030_BASEADD_SECURED_REG },
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static struct twl_mapping twl6030_map[] = {
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* NOTE: don't change this table without updating the
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* <linux/i2c/twl.h> defines for TWL4030_MODULE_*
301
* so they continue to match the order in this table.
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{ SUB_CHIP_ID1, TWL6030_BASEADD_USB },
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{ SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER },
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{ SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE },
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{ SUB_CHIP_ID1, TWL6030_BASEADD_PWM },
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{ SUB_CHIP_ID0, TWL6030_BASEADD_ZERO },
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{ SUB_CHIP_ID1, TWL6030_BASEADD_ZERO },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_ZERO },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
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{ SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER },
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{ SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC },
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{ SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
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{ SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
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/*----------------------------------------------------------------------*/
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/* Exported Functions */
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* twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
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* @mod_no: module number
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* @value: an array of num_bytes+1 containing data to write
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* @reg: register address (just offset will do)
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* @num_bytes: number of bytes to transfer
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* IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
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* valid data starts at Offset 1.
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* Returns the result of operation - 0 is success
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int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
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struct twl_client *twl;
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if (unlikely(mod_no > TWL_MODULE_LAST)) {
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pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
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sid = twl_map[mod_no].sid;
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twl = &twl_modules[sid];
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if (unlikely(!inuse)) {
364
pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
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mutex_lock(&twl->xfer_lock);
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* [MSG1]: fill the register address data
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* fill the data Tx buffer
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msg = &twl->xfer_msg[0];
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msg->addr = twl->address;
374
msg->len = num_bytes + 1;
377
/* over write the first byte of buffer with the register address */
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*value = twl_map[mod_no].base + reg;
379
ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
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mutex_unlock(&twl->xfer_lock);
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/* i2c_transfer returns number of messages transferred */
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pr_err("%s: i2c_write failed to transfer all messages\n",
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EXPORT_SYMBOL(twl_i2c_write);
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* twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
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* @mod_no: module number
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* @value: an array of num_bytes containing data to be read
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* @reg: register address (just offset will do)
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* @num_bytes: number of bytes to transfer
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* Returns result of operation - num_bytes is success else failure.
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int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
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struct twl_client *twl;
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if (unlikely(mod_no > TWL_MODULE_LAST)) {
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pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
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sid = twl_map[mod_no].sid;
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twl = &twl_modules[sid];
420
if (unlikely(!inuse)) {
421
pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
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mutex_lock(&twl->xfer_lock);
425
/* [MSG1] fill the register address data */
426
msg = &twl->xfer_msg[0];
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msg->addr = twl->address;
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msg->flags = 0; /* Read the register value */
430
val = twl_map[mod_no].base + reg;
432
/* [MSG2] fill the data rx buffer */
433
msg = &twl->xfer_msg[1];
434
msg->addr = twl->address;
435
msg->flags = I2C_M_RD; /* Read the register value */
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msg->len = num_bytes; /* only n bytes */
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ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2);
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mutex_unlock(&twl->xfer_lock);
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/* i2c_transfer returns number of messages transferred */
443
pr_err("%s: i2c_read failed to transfer all messages\n",
453
EXPORT_SYMBOL(twl_i2c_read);
456
* twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
457
* @mod_no: module number
458
* @value: the value to be written 8 bit
459
* @reg: register address (just offset will do)
461
* Returns result of operation - 0 is success
463
int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
466
/* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
467
u8 temp_buffer[2] = { 0 };
468
/* offset 1 contains the data */
469
temp_buffer[1] = value;
470
return twl_i2c_write(mod_no, temp_buffer, reg, 1);
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EXPORT_SYMBOL(twl_i2c_write_u8);
475
* twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
476
* @mod_no: module number
477
* @value: the value read 8 bit
478
* @reg: register address (just offset will do)
480
* Returns result of operation - 0 is success
482
int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
484
return twl_i2c_read(mod_no, value, reg, 1);
486
EXPORT_SYMBOL(twl_i2c_read_u8);
488
/*----------------------------------------------------------------------*/
490
static struct device *
491
add_numbered_child(unsigned chip, const char *name, int num,
492
void *pdata, unsigned pdata_len,
493
bool can_wakeup, int irq0, int irq1)
495
struct platform_device *pdev;
496
struct twl_client *twl = &twl_modules[chip];
499
pdev = platform_device_alloc(name, num);
501
dev_dbg(&twl->client->dev, "can't alloc dev\n");
506
device_init_wakeup(&pdev->dev, can_wakeup);
507
pdev->dev.parent = &twl->client->dev;
510
status = platform_device_add_data(pdev, pdata, pdata_len);
512
dev_dbg(&pdev->dev, "can't add platform_data\n");
518
struct resource r[2] = {
519
{ .start = irq0, .flags = IORESOURCE_IRQ, },
520
{ .start = irq1, .flags = IORESOURCE_IRQ, },
523
status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
525
dev_dbg(&pdev->dev, "can't add irqs\n");
530
status = platform_device_add(pdev);
534
platform_device_put(pdev);
535
dev_err(&twl->client->dev, "can't add %s dev\n", name);
536
return ERR_PTR(status);
541
static inline struct device *add_child(unsigned chip, const char *name,
542
void *pdata, unsigned pdata_len,
543
bool can_wakeup, int irq0, int irq1)
545
return add_numbered_child(chip, name, -1, pdata, pdata_len,
546
can_wakeup, irq0, irq1);
549
static struct device *
550
add_regulator_linked(int num, struct regulator_init_data *pdata,
551
struct regulator_consumer_supply *consumers,
552
unsigned num_consumers)
554
unsigned sub_chip_id;
555
/* regulator framework demands init_data ... */
560
pdata->consumer_supplies = consumers;
561
pdata->num_consumer_supplies = num_consumers;
564
/* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
565
sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
566
return add_numbered_child(sub_chip_id, "twl_reg", num,
567
pdata, sizeof(*pdata), false, 0, 0);
570
static struct device *
571
add_regulator(int num, struct regulator_init_data *pdata)
573
return add_regulator_linked(num, pdata, NULL, 0);
577
* NOTE: We know the first 8 IRQs after pdata->base_irq are
578
* for the PIH, and the next are for the PWR_INT SIH, since
579
* that's how twl_init_irq() sets things up.
583
add_children(struct twl4030_platform_data *pdata, unsigned long features)
585
struct device *child;
586
unsigned sub_chip_id;
588
if (twl_has_gpio() && pdata->gpio) {
589
child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
590
pdata->gpio, sizeof(*pdata->gpio),
591
false, pdata->irq_base + GPIO_INTR_OFFSET, 0);
593
return PTR_ERR(child);
596
if (twl_has_keypad() && pdata->keypad) {
597
child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
598
pdata->keypad, sizeof(*pdata->keypad),
599
true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0);
601
return PTR_ERR(child);
604
if (twl_has_madc() && pdata->madc) {
605
child = add_child(2, "twl4030_madc",
606
pdata->madc, sizeof(*pdata->madc),
607
true, pdata->irq_base + MADC_INTR_OFFSET, 0);
609
return PTR_ERR(child);
614
* REVISIT platform_data here currently might expose the
615
* "msecure" line ... but for now we just expect board
616
* setup to tell the chip "it's always ok to SET_TIME".
617
* Eventually, Linux might become more aware of such
618
* HW security concerns, and "least privilege".
620
sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
621
child = add_child(sub_chip_id, "twl_rtc",
623
true, pdata->irq_base + RTC_INTR_OFFSET, 0);
625
return PTR_ERR(child);
628
if (twl_has_usb() && pdata->usb && twl_class_is_4030()) {
630
static struct regulator_consumer_supply usb1v5 = {
633
static struct regulator_consumer_supply usb1v8 = {
636
static struct regulator_consumer_supply usb3v1 = {
640
/* First add the regulators so that they can be used by transceiver */
641
if (twl_has_regulator()) {
642
/* this is a template that gets copied */
643
struct regulator_init_data usb_fixed = {
644
.constraints.valid_modes_mask =
645
REGULATOR_MODE_NORMAL
646
| REGULATOR_MODE_STANDBY,
647
.constraints.valid_ops_mask =
648
REGULATOR_CHANGE_MODE
649
| REGULATOR_CHANGE_STATUS,
652
child = add_regulator_linked(TWL4030_REG_VUSB1V5,
653
&usb_fixed, &usb1v5, 1);
655
return PTR_ERR(child);
657
child = add_regulator_linked(TWL4030_REG_VUSB1V8,
658
&usb_fixed, &usb1v8, 1);
660
return PTR_ERR(child);
662
child = add_regulator_linked(TWL4030_REG_VUSB3V1,
663
&usb_fixed, &usb3v1, 1);
665
return PTR_ERR(child);
669
child = add_child(0, "twl4030_usb",
670
pdata->usb, sizeof(*pdata->usb),
672
/* irq0 = USB_PRES, irq1 = USB */
673
pdata->irq_base + USB_PRES_INTR_OFFSET,
674
pdata->irq_base + USB_INTR_OFFSET);
677
return PTR_ERR(child);
679
/* we need to connect regulators to this transceiver */
680
if (twl_has_regulator() && child) {
686
if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
688
static struct regulator_consumer_supply usb3v3 = {
692
if (twl_has_regulator()) {
693
/* this is a template that gets copied */
694
struct regulator_init_data usb_fixed = {
695
.constraints.valid_modes_mask =
696
REGULATOR_MODE_NORMAL
697
| REGULATOR_MODE_STANDBY,
698
.constraints.valid_ops_mask =
699
REGULATOR_CHANGE_MODE
700
| REGULATOR_CHANGE_STATUS,
703
child = add_regulator_linked(TWL6030_REG_VUSB,
704
&usb_fixed, &usb3v3, 1);
706
return PTR_ERR(child);
709
child = add_child(0, "twl6030_usb",
710
pdata->usb, sizeof(*pdata->usb),
712
/* irq1 = VBUS_PRES, irq0 = USB ID */
713
pdata->irq_base + USBOTG_INTR_OFFSET,
714
pdata->irq_base + USB_PRES_INTR_OFFSET);
717
return PTR_ERR(child);
718
/* we need to connect regulators to this transceiver */
719
if (twl_has_regulator() && child)
724
if (twl_has_watchdog()) {
725
child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0);
727
return PTR_ERR(child);
730
if (twl_has_pwrbutton()) {
731
child = add_child(1, "twl4030_pwrbutton",
732
NULL, 0, true, pdata->irq_base + 8 + 0, 0);
734
return PTR_ERR(child);
737
if (twl_has_codec() && pdata->codec && twl_class_is_4030()) {
738
sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
739
child = add_child(sub_chip_id, "twl4030-audio",
740
pdata->codec, sizeof(*pdata->codec),
743
return PTR_ERR(child);
746
/* Phoenix codec driver is probed directly atm */
747
if (twl_has_codec() && pdata->codec && twl_class_is_6030()) {
748
sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
749
child = add_child(sub_chip_id, "twl6040-codec",
750
pdata->codec, sizeof(*pdata->codec),
753
return PTR_ERR(child);
756
/* twl4030 regulators */
757
if (twl_has_regulator() && twl_class_is_4030()) {
758
child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1);
760
return PTR_ERR(child);
762
child = add_regulator(TWL4030_REG_VIO, pdata->vio);
764
return PTR_ERR(child);
766
child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1);
768
return PTR_ERR(child);
770
child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2);
772
return PTR_ERR(child);
774
child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1);
776
return PTR_ERR(child);
778
child = add_regulator(TWL4030_REG_VDAC, pdata->vdac);
780
return PTR_ERR(child);
782
child = add_regulator((features & TWL4030_VAUX2)
783
? TWL4030_REG_VAUX2_4030
787
return PTR_ERR(child);
789
child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1);
791
return PTR_ERR(child);
793
child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2);
795
return PTR_ERR(child);
797
child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig);
799
return PTR_ERR(child);
802
/* maybe add LDOs that are omitted on cost-reduced parts */
803
if (twl_has_regulator() && !(features & TPS_SUBSET)
804
&& twl_class_is_4030()) {
805
child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2);
807
return PTR_ERR(child);
809
child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2);
811
return PTR_ERR(child);
813
child = add_regulator(TWL4030_REG_VSIM, pdata->vsim);
815
return PTR_ERR(child);
817
child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1);
819
return PTR_ERR(child);
821
child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3);
823
return PTR_ERR(child);
825
child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4);
827
return PTR_ERR(child);
830
/* twl6030 regulators */
831
if (twl_has_regulator() && twl_class_is_6030()) {
832
child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc);
834
return PTR_ERR(child);
836
child = add_regulator(TWL6030_REG_VPP, pdata->vpp);
838
return PTR_ERR(child);
840
child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim);
842
return PTR_ERR(child);
844
child = add_regulator(TWL6030_REG_VANA, pdata->vana);
846
return PTR_ERR(child);
848
child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio);
850
return PTR_ERR(child);
852
child = add_regulator(TWL6030_REG_VDAC, pdata->vdac);
854
return PTR_ERR(child);
856
child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1);
858
return PTR_ERR(child);
860
child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2);
862
return PTR_ERR(child);
864
child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3);
866
return PTR_ERR(child);
869
if (twl_has_bci() && pdata->bci &&
870
!(features & (TPS_SUBSET | TWL5031))) {
871
child = add_child(3, "twl4030_bci",
872
pdata->bci, sizeof(*pdata->bci), false,
873
/* irq0 = CHG_PRES, irq1 = BCI */
874
pdata->irq_base + BCI_PRES_INTR_OFFSET,
875
pdata->irq_base + BCI_INTR_OFFSET);
877
return PTR_ERR(child);
883
/*----------------------------------------------------------------------*/
886
* These three functions initialize the on-chip clock framework,
887
* letting it generate the right frequencies for USB, MADC, and
890
static inline int __init protect_pm_master(void)
894
e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0,
895
TWL4030_PM_MASTER_PROTECT_KEY);
899
static inline int __init unprotect_pm_master(void)
903
e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
904
TWL4030_PM_MASTER_KEY_CFG1,
905
TWL4030_PM_MASTER_PROTECT_KEY);
906
e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
907
TWL4030_PM_MASTER_KEY_CFG2,
908
TWL4030_PM_MASTER_PROTECT_KEY);
913
static void clocks_init(struct device *dev,
914
struct twl4030_clock_init_data *clock)
919
u8 ctrl = HFCLK_FREQ_26_MHZ;
921
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
922
if (cpu_is_omap2430())
923
osc = clk_get(dev, "osc_ck");
925
osc = clk_get(dev, "osc_sys_ck");
928
printk(KERN_WARNING "Skipping twl internal clock init and "
929
"using bootloader value (unknown osc rate)\n");
933
rate = clk_get_rate(osc);
937
/* REVISIT for non-OMAP systems, pass the clock rate from
938
* board init code, using platform_data.
942
printk(KERN_WARNING "Skipping twl internal clock init and "
943
"using bootloader value (unknown osc rate)\n");
950
ctrl = HFCLK_FREQ_19p2_MHZ;
953
ctrl = HFCLK_FREQ_26_MHZ;
956
ctrl = HFCLK_FREQ_38p4_MHZ;
960
ctrl |= HIGH_PERF_SQ;
961
if (clock && clock->ck32k_lowpwr_enable)
962
ctrl |= CK32K_LOWPWR_EN;
964
e |= unprotect_pm_master();
965
/* effect->MADC+USB ck en */
966
e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
967
e |= protect_pm_master();
970
pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
973
/*----------------------------------------------------------------------*/
975
int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
976
int twl4030_exit_irq(void);
977
int twl4030_init_chip_irq(const char *chip);
978
int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
979
int twl6030_exit_irq(void);
981
static int twl_remove(struct i2c_client *client)
986
if (twl_class_is_4030())
987
status = twl4030_exit_irq();
989
status = twl6030_exit_irq();
994
for (i = 0; i < TWL_NUM_SLAVES; i++) {
995
struct twl_client *twl = &twl_modules[i];
997
if (twl->client && twl->client != client)
998
i2c_unregister_device(twl->client);
999
twl_modules[i].client = NULL;
1005
/* NOTE: this driver only handles a single twl4030/tps659x0 chip */
1006
static int __devinit
1007
twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
1011
struct twl4030_platform_data *pdata = client->dev.platform_data;
1015
dev_dbg(&client->dev, "no platform data?\n");
1019
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
1020
dev_dbg(&client->dev, "can't talk I2C?\n");
1025
dev_dbg(&client->dev, "driver is already in use\n");
1029
for (i = 0; i < TWL_NUM_SLAVES; i++) {
1030
struct twl_client *twl = &twl_modules[i];
1032
twl->address = client->addr + i;
1034
twl->client = client;
1036
twl->client = i2c_new_dummy(client->adapter,
1039
dev_err(&client->dev,
1040
"can't attach client %d\n", i);
1045
mutex_init(&twl->xfer_lock);
1048
if ((id->driver_data) & TWL6030_CLASS) {
1049
twl_id = TWL6030_CLASS_ID;
1050
twl_map = &twl6030_map[0];
1052
twl_id = TWL4030_CLASS_ID;
1053
twl_map = &twl4030_map[0];
1056
/* setup clock framework */
1057
clocks_init(&client->dev, pdata->clock);
1059
/* load power event scripts */
1060
if (twl_has_power() && pdata->power)
1061
twl4030_power_init(pdata->power);
1063
/* Maybe init the T2 Interrupt subsystem */
1066
&& pdata->irq_end > pdata->irq_base) {
1067
if (twl_class_is_4030()) {
1068
twl4030_init_chip_irq(id->name);
1069
status = twl4030_init_irq(client->irq, pdata->irq_base,
1072
status = twl6030_init_irq(client->irq, pdata->irq_base,
1080
/* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
1081
* Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
1082
* SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
1085
if (twl_class_is_4030()) {
1086
twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
1087
temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
1088
I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
1089
twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
1092
status = add_children(pdata, id->driver_data);
1099
static const struct i2c_device_id twl_ids[] = {
1100
{ "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
1101
{ "twl5030", 0 }, /* T2 updated */
1102
{ "twl5031", TWL5031 }, /* TWL5030 updated */
1103
{ "tps65950", 0 }, /* catalog version of twl5030 */
1104
{ "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
1105
{ "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
1106
{ "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
1107
{ /* end of list */ },
1109
MODULE_DEVICE_TABLE(i2c, twl_ids);
1111
/* One Client Driver , 4 Clients */
1112
static struct i2c_driver twl_driver = {
1113
.driver.name = DRIVER_NAME,
1114
.id_table = twl_ids,
1116
.remove = twl_remove,
1119
static int __init twl_init(void)
1121
return i2c_add_driver(&twl_driver);
1123
subsys_initcall(twl_init);
1125
static void __exit twl_exit(void)
1127
i2c_del_driver(&twl_driver);
1129
module_exit(twl_exit);
1131
MODULE_AUTHOR("Texas Instruments, Inc.");
1132
MODULE_DESCRIPTION("I2C Core interface for TWL");
1133
MODULE_LICENSE("GPL");