diff options
Diffstat (limited to 'drivers/mfd/wm8400-core.c')
| -rw-r--r-- | drivers/mfd/wm8400-core.c | 44 |
1 files changed, 10 insertions, 34 deletions
diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c index 8a98a2fc74e1..8ecfe878a5ba 100644 --- a/drivers/mfd/wm8400-core.c +++ b/drivers/mfd/wm8400-core.c @@ -1,18 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Core driver for WM8400. * * Copyright 2008 Wolfson Microelectronics PLC. * * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> - * - * 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 <linux/module.h> +#include <linux/init.h> #include <linux/bug.h> #include <linux/err.h> #include <linux/i2c.h> @@ -35,12 +30,6 @@ static bool wm8400_volatile(struct device *dev, unsigned int reg) } } -int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data) -{ - return regmap_bulk_read(wm8400->regmap, reg, data, count); -} -EXPORT_SYMBOL_GPL(wm8400_block_read); - static int wm8400_register_codec(struct wm8400 *wm8400) { const struct mfd_cell cell = { @@ -65,8 +54,6 @@ static int wm8400_init(struct wm8400 *wm8400, unsigned int reg; int ret; - dev_set_drvdata(wm8400->dev, wm8400); - /* Check that this is actually a WM8400 */ ret = regmap_read(wm8400->regmap, WM8400_RESET_ID, ®); if (ret != 0) { @@ -113,12 +100,14 @@ static const struct regmap_config wm8400_regmap_config = { .volatile_reg = wm8400_volatile, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, }; /** * wm8400_reset_codec_reg_cache - Reset cached codec registers to * their default values. + * + * @wm8400: pointer to local driver data structure */ void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400) { @@ -127,8 +116,7 @@ void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400) EXPORT_SYMBOL_GPL(wm8400_reset_codec_reg_cache); #if IS_ENABLED(CONFIG_I2C) -static int wm8400_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static int wm8400_i2c_probe(struct i2c_client *i2c) { struct wm8400 *wm8400; @@ -147,21 +135,20 @@ static int wm8400_i2c_probe(struct i2c_client *i2c, } static const struct i2c_device_id wm8400_i2c_id[] = { - { "wm8400", 0 }, + { "wm8400" }, { } }; -MODULE_DEVICE_TABLE(i2c, wm8400_i2c_id); static struct i2c_driver wm8400_i2c_driver = { .driver = { .name = "WM8400", }, - .probe = wm8400_i2c_probe, + .probe = wm8400_i2c_probe, .id_table = wm8400_i2c_id, }; #endif -static int __init wm8400_module_init(void) +static int __init wm8400_driver_init(void) { int ret = -ENODEV; @@ -173,15 +160,4 @@ static int __init wm8400_module_init(void) return ret; } -subsys_initcall(wm8400_module_init); - -static void __exit wm8400_module_exit(void) -{ -#if IS_ENABLED(CONFIG_I2C) - i2c_del_driver(&wm8400_i2c_driver); -#endif -} -module_exit(wm8400_module_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); +subsys_initcall(wm8400_driver_init); |