From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- ANDROID_3.4.5/drivers/mfd/wm8400-core.c | 420 -------------------------------- 1 file changed, 420 deletions(-) delete mode 100644 ANDROID_3.4.5/drivers/mfd/wm8400-core.c (limited to 'ANDROID_3.4.5/drivers/mfd/wm8400-core.c') diff --git a/ANDROID_3.4.5/drivers/mfd/wm8400-core.c b/ANDROID_3.4.5/drivers/mfd/wm8400-core.c deleted file mode 100644 index 1189a17f..00000000 --- a/ANDROID_3.4.5/drivers/mfd/wm8400-core.c +++ /dev/null @@ -1,420 +0,0 @@ -/* - * Core driver for WM8400. - * - * Copyright 2008 Wolfson Microelectronics PLC. - * - * Author: Mark Brown - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static struct { - u16 readable; /* Mask of readable bits */ - u16 writable; /* Mask of writable bits */ - u16 vol; /* Mask of volatile bits */ - int is_codec; /* Register controlled by codec reset */ - u16 default_val; /* Value on reset */ -} reg_data[] = { - { 0xFFFF, 0xFFFF, 0x0000, 0, 0x6172 }, /* R0 */ - { 0x7000, 0x0000, 0x8000, 0, 0x0000 }, /* R1 */ - { 0xFF17, 0xFF17, 0x0000, 0, 0x0000 }, /* R2 */ - { 0xEBF3, 0xEBF3, 0x0000, 1, 0x6000 }, /* R3 */ - { 0x3CF3, 0x3CF3, 0x0000, 1, 0x0000 }, /* R4 */ - { 0xF1F8, 0xF1F8, 0x0000, 1, 0x4050 }, /* R5 */ - { 0xFC1F, 0xFC1F, 0x0000, 1, 0x4000 }, /* R6 */ - { 0xDFDE, 0xDFDE, 0x0000, 1, 0x01C8 }, /* R7 */ - { 0xFCFC, 0xFCFC, 0x0000, 1, 0x0000 }, /* R8 */ - { 0xEFFF, 0xEFFF, 0x0000, 1, 0x0040 }, /* R9 */ - { 0xEFFF, 0xEFFF, 0x0000, 1, 0x0040 }, /* R10 */ - { 0x27F7, 0x27F7, 0x0000, 1, 0x0004 }, /* R11 */ - { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R12 */ - { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R13 */ - { 0x1FEF, 0x1FEF, 0x0000, 1, 0x0000 }, /* R14 */ - { 0x0163, 0x0163, 0x0000, 1, 0x0100 }, /* R15 */ - { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R16 */ - { 0x01FF, 0x01FF, 0x0000, 1, 0x00C0 }, /* R17 */ - { 0x1FFF, 0x0FFF, 0x0000, 1, 0x0000 }, /* R18 */ - { 0xFFFF, 0xFFFF, 0x0000, 1, 0x1000 }, /* R19 */ - { 0xFFFF, 0xFFFF, 0x0000, 1, 0x1010 }, /* R20 */ - { 0xFFFF, 0xFFFF, 0x0000, 1, 0x1010 }, /* R21 */ - { 0x0FDD, 0x0FDD, 0x0000, 1, 0x8000 }, /* R22 */ - { 0x1FFF, 0x1FFF, 0x0000, 1, 0x0800 }, /* R23 */ - { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R24 */ - { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R25 */ - { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R26 */ - { 0x0000, 0x01DF, 0x0000, 1, 0x008B }, /* R27 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R28 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R29 */ - { 0x0000, 0x0077, 0x0000, 1, 0x0066 }, /* R30 */ - { 0x0000, 0x0033, 0x0000, 1, 0x0022 }, /* R31 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0079 }, /* R32 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0079 }, /* R33 */ - { 0x0000, 0x0003, 0x0000, 1, 0x0003 }, /* R34 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0003 }, /* R35 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R36 */ - { 0x0000, 0x003F, 0x0000, 1, 0x0100 }, /* R37 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R38 */ - { 0x0000, 0x000F, 0x0000, 0, 0x0000 }, /* R39 */ - { 0x0000, 0x00FF, 0x0000, 1, 0x0000 }, /* R40 */ - { 0x0000, 0x01B7, 0x0000, 1, 0x0000 }, /* R41 */ - { 0x0000, 0x01B7, 0x0000, 1, 0x0000 }, /* R42 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R43 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R44 */ - { 0x0000, 0x00FD, 0x0000, 1, 0x0000 }, /* R45 */ - { 0x0000, 0x00FD, 0x0000, 1, 0x0000 }, /* R46 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R47 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R48 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R49 */ - { 0x0000, 0x01FF, 0x0000, 1, 0x0000 }, /* R50 */ - { 0x0000, 0x01B3, 0x0000, 1, 0x0180 }, /* R51 */ - { 0x0000, 0x0077, 0x0000, 1, 0x0000 }, /* R52 */ - { 0x0000, 0x0077, 0x0000, 1, 0x0000 }, /* R53 */ - { 0x0000, 0x00FF, 0x0000, 1, 0x0000 }, /* R54 */ - { 0x0000, 0x0001, 0x0000, 1, 0x0000 }, /* R55 */ - { 0x0000, 0x003F, 0x0000, 1, 0x0000 }, /* R56 */ - { 0x0000, 0x004F, 0x0000, 1, 0x0000 }, /* R57 */ - { 0x0000, 0x00FD, 0x0000, 1, 0x0000 }, /* R58 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R59 */ - { 0x1FFF, 0x1FFF, 0x0000, 1, 0x0000 }, /* R60 */ - { 0xFFFF, 0xFFFF, 0x0000, 1, 0x0000 }, /* R61 */ - { 0x03FF, 0x03FF, 0x0000, 1, 0x0000 }, /* R62 */ - { 0x007F, 0x007F, 0x0000, 1, 0x0000 }, /* R63 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R64 */ - { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R65 */ - { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R66 */ - { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R67 */ - { 0xDFFF, 0xDFFF, 0x0000, 0, 0x0000 }, /* R68 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R69 */ - { 0xFFFF, 0xFFFF, 0x0000, 0, 0x4400 }, /* R70 */ - { 0x23FF, 0x23FF, 0x0000, 0, 0x0000 }, /* R71 */ - { 0xFFFF, 0xFFFF, 0x0000, 0, 0x4400 }, /* R72 */ - { 0x23FF, 0x23FF, 0x0000, 0, 0x0000 }, /* R73 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R74 */ - { 0x000E, 0x000E, 0x0000, 0, 0x0008 }, /* R75 */ - { 0xE00F, 0xE00F, 0x0000, 0, 0x0000 }, /* R76 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R77 */ - { 0x03C0, 0x03C0, 0x0000, 0, 0x02C0 }, /* R78 */ - { 0xFFFF, 0x0000, 0xffff, 0, 0x0000 }, /* R79 */ - { 0xFFFF, 0xFFFF, 0x0000, 0, 0x0000 }, /* R80 */ - { 0xFFFF, 0x0000, 0xffff, 0, 0x0000 }, /* R81 */ - { 0x2BFF, 0x0000, 0xffff, 0, 0x0000 }, /* R82 */ - { 0x0000, 0x0000, 0x0000, 0, 0x0000 }, /* R83 */ - { 0x80FF, 0x80FF, 0x0000, 0, 0x00ff }, /* R84 */ -}; - -static int wm8400_read(struct wm8400 *wm8400, u8 reg, int num_regs, u16 *dest) -{ - int i, ret = 0; - - BUG_ON(reg + num_regs > ARRAY_SIZE(wm8400->reg_cache)); - - /* If there are any volatile reads then read back the entire block */ - for (i = reg; i < reg + num_regs; i++) - if (reg_data[i].vol) { - ret = regmap_bulk_read(wm8400->regmap, reg, dest, - num_regs); - return ret; - } - - /* Otherwise use the cache */ - memcpy(dest, &wm8400->reg_cache[reg], num_regs * sizeof(u16)); - - return 0; -} - -static int wm8400_write(struct wm8400 *wm8400, u8 reg, int num_regs, - u16 *src) -{ - int ret, i; - - BUG_ON(reg + num_regs > ARRAY_SIZE(wm8400->reg_cache)); - - for (i = 0; i < num_regs; i++) { - BUG_ON(!reg_data[reg + i].writable); - wm8400->reg_cache[reg + i] = src[i]; - ret = regmap_write(wm8400->regmap, reg, src[i]); - if (ret != 0) - return ret; - } - - return 0; -} - -/** - * wm8400_reg_read - Single register read - * - * @wm8400: Pointer to wm8400 control structure - * @reg: Register to read - * - * @return Read value - */ -u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg) -{ - u16 val; - - mutex_lock(&wm8400->io_lock); - - wm8400_read(wm8400, reg, 1, &val); - - mutex_unlock(&wm8400->io_lock); - - return val; -} -EXPORT_SYMBOL_GPL(wm8400_reg_read); - -int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data) -{ - int ret; - - mutex_lock(&wm8400->io_lock); - - ret = wm8400_read(wm8400, reg, count, data); - - mutex_unlock(&wm8400->io_lock); - - return ret; -} -EXPORT_SYMBOL_GPL(wm8400_block_read); - -/** - * wm8400_set_bits - Bitmask write - * - * @wm8400: Pointer to wm8400 control structure - * @reg: Register to access - * @mask: Mask of bits to change - * @val: Value to set for masked bits - */ -int wm8400_set_bits(struct wm8400 *wm8400, u8 reg, u16 mask, u16 val) -{ - u16 tmp; - int ret; - - mutex_lock(&wm8400->io_lock); - - ret = wm8400_read(wm8400, reg, 1, &tmp); - tmp = (tmp & ~mask) | val; - if (ret == 0) - ret = wm8400_write(wm8400, reg, 1, &tmp); - - mutex_unlock(&wm8400->io_lock); - - return ret; -} -EXPORT_SYMBOL_GPL(wm8400_set_bits); - -/** - * wm8400_reset_codec_reg_cache - Reset cached codec registers to - * their default values. - */ -void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400) -{ - int i; - - mutex_lock(&wm8400->io_lock); - - /* Reset all codec registers to their initial value */ - for (i = 0; i < ARRAY_SIZE(wm8400->reg_cache); i++) - if (reg_data[i].is_codec) - wm8400->reg_cache[i] = reg_data[i].default_val; - - mutex_unlock(&wm8400->io_lock); -} -EXPORT_SYMBOL_GPL(wm8400_reset_codec_reg_cache); - -static int wm8400_register_codec(struct wm8400 *wm8400) -{ - struct mfd_cell cell = { - .name = "wm8400-codec", - .platform_data = wm8400, - .pdata_size = sizeof(*wm8400), - }; - - return mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0); -} - -/* - * wm8400_init - Generic initialisation - * - * The WM8400 can be configured as either an I2C or SPI device. Probe - * functions for each bus set up the accessors then call into this to - * set up the device itself. - */ -static int wm8400_init(struct wm8400 *wm8400, - struct wm8400_platform_data *pdata) -{ - u16 reg; - int ret, i; - - mutex_init(&wm8400->io_lock); - - dev_set_drvdata(wm8400->dev, wm8400); - - /* Check that this is actually a WM8400 */ - ret = regmap_read(wm8400->regmap, WM8400_RESET_ID, &i); - if (ret != 0) { - dev_err(wm8400->dev, "Chip ID register read failed\n"); - return -EIO; - } - if (i != reg_data[WM8400_RESET_ID].default_val) { - dev_err(wm8400->dev, "Device is not a WM8400, ID is %x\n", i); - return -ENODEV; - } - - /* We don't know what state the hardware is in and since this - * is a PMIC we can't reset it safely so initialise the register - * cache from the hardware. - */ - ret = regmap_raw_read(wm8400->regmap, 0, wm8400->reg_cache, - ARRAY_SIZE(wm8400->reg_cache)); - if (ret != 0) { - dev_err(wm8400->dev, "Register cache read failed\n"); - return -EIO; - } - for (i = 0; i < ARRAY_SIZE(wm8400->reg_cache); i++) - wm8400->reg_cache[i] = be16_to_cpu(wm8400->reg_cache[i]); - - /* If the codec is in reset use hard coded values */ - if (!(wm8400->reg_cache[WM8400_POWER_MANAGEMENT_1] & WM8400_CODEC_ENA)) - for (i = 0; i < ARRAY_SIZE(wm8400->reg_cache); i++) - if (reg_data[i].is_codec) - wm8400->reg_cache[i] = reg_data[i].default_val; - - ret = wm8400_read(wm8400, WM8400_ID, 1, ®); - if (ret != 0) { - dev_err(wm8400->dev, "ID register read failed: %d\n", ret); - return ret; - } - reg = (reg & WM8400_CHIP_REV_MASK) >> WM8400_CHIP_REV_SHIFT; - dev_info(wm8400->dev, "WM8400 revision %x\n", reg); - - ret = wm8400_register_codec(wm8400); - if (ret != 0) { - dev_err(wm8400->dev, "Failed to register codec\n"); - goto err_children; - } - - if (pdata && pdata->platform_init) { - ret = pdata->platform_init(wm8400->dev); - if (ret != 0) { - dev_err(wm8400->dev, "Platform init failed: %d\n", - ret); - goto err_children; - } - } else - dev_warn(wm8400->dev, "No platform initialisation supplied\n"); - - return 0; - -err_children: - mfd_remove_devices(wm8400->dev); - return ret; -} - -static void wm8400_release(struct wm8400 *wm8400) -{ - mfd_remove_devices(wm8400->dev); -} - -static const struct regmap_config wm8400_regmap_config = { - .reg_bits = 8, - .val_bits = 16, - .max_register = WM8400_REGISTER_COUNT - 1, -}; - -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) -static int wm8400_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - struct wm8400 *wm8400; - int ret; - - wm8400 = devm_kzalloc(&i2c->dev, sizeof(struct wm8400), GFP_KERNEL); - if (wm8400 == NULL) { - ret = -ENOMEM; - goto err; - } - - wm8400->regmap = devm_regmap_init_i2c(i2c, &wm8400_regmap_config); - if (IS_ERR(wm8400->regmap)) { - ret = PTR_ERR(wm8400->regmap); - goto err; - } - - wm8400->dev = &i2c->dev; - i2c_set_clientdata(i2c, wm8400); - - ret = wm8400_init(wm8400, i2c->dev.platform_data); - if (ret != 0) - goto err; - - return 0; - -err: - return ret; -} - -static int wm8400_i2c_remove(struct i2c_client *i2c) -{ - struct wm8400 *wm8400 = i2c_get_clientdata(i2c); - - wm8400_release(wm8400); - - return 0; -} - -static const struct i2c_device_id wm8400_i2c_id[] = { - { "wm8400", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, wm8400_i2c_id); - -static struct i2c_driver wm8400_i2c_driver = { - .driver = { - .name = "WM8400", - .owner = THIS_MODULE, - }, - .probe = wm8400_i2c_probe, - .remove = wm8400_i2c_remove, - .id_table = wm8400_i2c_id, -}; -#endif - -static int __init wm8400_module_init(void) -{ - int ret = -ENODEV; - -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - ret = i2c_add_driver(&wm8400_i2c_driver); - if (ret != 0) - pr_err("Failed to register I2C driver: %d\n", ret); -#endif - - return ret; -} -subsys_initcall(wm8400_module_init); - -static void __exit wm8400_module_exit(void) -{ -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - i2c_del_driver(&wm8400_i2c_driver); -#endif -} -module_exit(wm8400_module_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Mark Brown "); -- cgit