37613fa5b7
There were a few files in the regmap code that did not have SPDX identifiers on them, so fix that up. At the same time, remove the "free form" text that specified the license of the file, as that is impossible for any tool to properly parse. Also, as Mark loves // comment markers, convert all of the headers to be the same to make things look consistent :) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Mark Brown <broonie@kernel.org>
90 lines
2 KiB
C
90 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// Register map access API - AC'97 support
|
|
//
|
|
// Copyright 2013 Linaro Ltd. All rights reserved.
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/err.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <sound/ac97_codec.h>
|
|
|
|
bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case AC97_RESET:
|
|
case AC97_POWERDOWN:
|
|
case AC97_INT_PAGING:
|
|
case AC97_EXTENDED_ID:
|
|
case AC97_EXTENDED_STATUS:
|
|
case AC97_EXTENDED_MID:
|
|
case AC97_EXTENDED_MSTATUS:
|
|
case AC97_GPIO_STATUS:
|
|
case AC97_MISC_AFE:
|
|
case AC97_VENDOR_ID1:
|
|
case AC97_VENDOR_ID2:
|
|
case AC97_CODEC_CLASS_REV:
|
|
case AC97_PCI_SVID:
|
|
case AC97_PCI_SID:
|
|
case AC97_FUNC_SELECT:
|
|
case AC97_FUNC_INFO:
|
|
case AC97_SENSE_INFO:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(regmap_ac97_default_volatile);
|
|
|
|
static int regmap_ac97_reg_read(void *context, unsigned int reg,
|
|
unsigned int *val)
|
|
{
|
|
struct snd_ac97 *ac97 = context;
|
|
|
|
*val = ac97->bus->ops->read(ac97, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int regmap_ac97_reg_write(void *context, unsigned int reg,
|
|
unsigned int val)
|
|
{
|
|
struct snd_ac97 *ac97 = context;
|
|
|
|
ac97->bus->ops->write(ac97, reg, val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct regmap_bus ac97_regmap_bus = {
|
|
.reg_write = regmap_ac97_reg_write,
|
|
.reg_read = regmap_ac97_reg_read,
|
|
};
|
|
|
|
struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97,
|
|
const struct regmap_config *config,
|
|
struct lock_class_key *lock_key,
|
|
const char *lock_name)
|
|
{
|
|
return __regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config,
|
|
lock_key, lock_name);
|
|
}
|
|
EXPORT_SYMBOL_GPL(__regmap_init_ac97);
|
|
|
|
struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
|
|
const struct regmap_config *config,
|
|
struct lock_class_key *lock_key,
|
|
const char *lock_name)
|
|
{
|
|
return __devm_regmap_init(&ac97->dev, &ac97_regmap_bus, ac97, config,
|
|
lock_key, lock_name);
|
|
}
|
|
EXPORT_SYMBOL_GPL(__devm_regmap_init_ac97);
|
|
|
|
MODULE_LICENSE("GPL v2");
|