// SPDX-License-Identifier: GPL-2.0-only
//
// aw88261.c -- AW88261 ALSA SoC Audio driver
//
// Copyright (c) 2023 awinic Technology CO., LTD
//
// Author: Jimmy Zhang <zhangjianming@awinic.com>
// Author: Weidong Wang <wangweidong.a@awinic.com>
//
#include <linux/i2c.h>
#include <linux/firmware.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <sound/soc.h>
#include "aw88261.h"
#include "aw88395/aw88395_data_type.h"
#include "aw88395/aw88395_device.h"
static const struct regmap_config aw88261_remap_config = {
.val_bits = 16,
.reg_bits = 8,
.max_register = AW88261_REG_MAX,
.reg_format_endian = REGMAP_ENDIAN_LITTLE,
.val_format_endian = REGMAP_ENDIAN_BIG,
};
static void aw88261_dev_set_volume(struct aw_device *aw_dev, unsigned int value)
{
struct aw_volume_desc *vol_desc = &aw_dev->volume_desc;
unsigned int real_value, volume;
unsigned int reg_value;
volume = min((value + vol_desc->init_volume), (unsigned int)AW88261_MUTE_VOL);
real_value = DB_TO_REG_VAL(volume);
regmap_read(aw_dev->regmap, AW88261_SYSCTRL2_REG, ®_value);
real_value = (real_value | (reg_value & AW88261_VOL_START_MASK));
dev_dbg(aw_dev->dev, "value 0x%x , real_value:0x%x", value, real_value);
regmap_write(aw_dev->regmap, AW88261_SYSCTRL2_REG, real_value);
}
static void aw88261_dev_fade_in(struct aw_device *aw_dev)
{
struct aw_volume_desc *desc = &aw_dev->volume_desc;
int fade_in_vol = desc->ctl_volume;
int fade_step = aw_dev->fade_step;
int i;
if (fade_step == 0 || aw_dev->fade_in_time == 0) {
aw88261_dev_set_volume(aw_dev, fade_in_vol);
return;
}
for (i = AW88261_MUTE_VOL; i >= fade_in_vol; i -= fade_step) {
aw88261_dev_set_volume(aw_dev, i);
usleep_range(aw_dev->fade_in_time,
aw_dev->fade_in_time + 10);
}
if (i != fade_in_vol)
aw88261_dev_set_volume(aw_dev, fade_in_vol);
}
static void a