mirror of
https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
synced 2025-11-04 08:34:47 +10:00
9abcd24002
After commitb8a1a4cd5a("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then03c835f498("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de Link: https://lore.kernel.org/r/20230425095716.331419-1-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* LM4857 AMP driver
|
|
*
|
|
* Copyright 2007 Wolfson Microelectronics PLC.
|
|
* Author: Graeme Gregory
|
|
* graeme.gregory@wolfsonmicro.com
|
|
* Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/tlv.h>
|
|
|
|
static const struct reg_default lm4857_default_regs[] = {
|
|
{ 0x0, 0x00 },
|
|
{ 0x1, 0x00 },
|
|
{ 0x2, 0x00 },
|
|
{ 0x3, 0x00 },
|
|
};
|
|
|
|
/* The register offsets in the cache array */
|
|
#define LM4857_MVOL 0
|
|
#define LM4857_LVOL 1
|
|
#define LM4857_RVOL 2
|
|
#define LM4857_CTRL 3
|
|
|
|
/* the shifts required to set these bits */
|
|
#define LM4857_3D 5
|
|
#define LM4857_WAKEUP 5
|
|
#define LM4857_EPGAIN 4
|
|
|
|
static const unsigned int lm4857_mode_values[] = {
|
|
0,
|
|
6,
|
|
7,
|
|
8,
|
|
9,
|
|
};
|
|
|
|
static const char * const lm4857_mode_texts[] = {
|
|
"Off",
|
|
"Earpiece",
|
|
"Loudspeaker",
|
|
"Loudspeaker + Headphone",
|
|
"Headphone",
|
|
};
|
|
|
|
static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(lm4857_mode_enum,
|
|
LM4857_CTRL, 0, 0xf, lm4857_mode_texts, lm4857_mode_values);
|
|
|
|
static const struct snd_kcontrol_new lm4857_mode_ctrl =
|
|
SOC_DAPM_ENUM("Mode", lm4857_mode_enum);
|
|
|
|
static const struct snd_soc_dapm_widget lm4857_dapm_widgets[] = {
|
|
SND_SOC_DAPM_INPUT("IN"),
|
|
|
|
SND_SOC_DAPM_DEMUX("Mode", SND_SOC_NOPM, 0, 0, &lm4857_mode_ctrl),
|
|
|
|
SND_SOC_DAPM_OUTPUT("LS"),
|
|
SND_SOC_DAPM_OUTPUT("HP"),
|
|
SND_SOC_DAPM_OUTPUT("EP"),
|
|
};
|
|
|
|
static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
|
|
static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
|
|
|
|
static const struct snd_kcontrol_new lm4857_controls[] = {
|
|
SOC_SINGLE_TLV("Left Playback Volume", LM4857_LVOL, 0, 31, 0,
|
|
stereo_tlv),
|
|
SOC_SINGLE_TLV("Right Playback Volume", LM4857_RVOL, 0, 31, 0,
|
|
stereo_tlv),
|
|
SOC_SINGLE_TLV("Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
|
|
mono_tlv),
|
|
SOC_SINGLE("Spk 3D Playback Switch", LM4857_LVOL, LM4857_3D, 1, 0),
|
|
SOC_SINGLE("HP 3D Playback Switch", LM4857_RVOL, LM4857_3D, 1, 0),
|
|
SOC_SINGLE("Fast Wakeup Playback Switch", LM4857_CTRL,
|
|
LM4857_WAKEUP, 1, 0),
|
|
SOC_SINGLE("Earpiece 6dB Playback Switch", LM4857_CTRL,
|
|
LM4857_EPGAIN, 1, 0),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route lm4857_routes[] = {
|
|
{ "Mode", NULL, "IN" },
|
|
{ "LS", "Loudspeaker", "Mode" },
|
|
{ "LS", "Loudspeaker + Headphone", "Mode" },
|
|
{ "HP", "Headphone", "Mode" },
|
|
{ "HP", "Loudspeaker + Headphone", "Mode" },
|
|
{ "EP", "Earpiece", "Mode" },
|
|
};
|
|
|
|
static const struct snd_soc_component_driver lm4857_component_driver = {
|
|
.controls = lm4857_controls,
|
|
.num_controls = ARRAY_SIZE(lm4857_controls),
|
|
.dapm_widgets = lm4857_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(lm4857_dapm_widgets),
|
|
.dapm_routes = lm4857_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(lm4857_routes),
|
|
};
|
|
|
|
static const struct regmap_config lm4857_regmap_config = {
|
|
.val_bits = 6,
|
|
.reg_bits = 2,
|
|
|
|
.max_register = LM4857_CTRL,
|
|
|
|
.cache_type = REGCACHE_FLAT,
|
|
.reg_defaults = lm4857_default_regs,
|
|
.num_reg_defaults = ARRAY_SIZE(lm4857_default_regs),
|
|
};
|
|
|
|
static int lm4857_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
struct regmap *regmap;
|
|
|
|
regmap = devm_regmap_init_i2c(i2c, &lm4857_regmap_config);
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
return devm_snd_soc_register_component(&i2c->dev,
|
|
&lm4857_component_driver, NULL, 0);
|
|
}
|
|
|
|
static const struct i2c_device_id lm4857_i2c_id[] = {
|
|
{ "lm4857", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, lm4857_i2c_id);
|
|
|
|
static struct i2c_driver lm4857_i2c_driver = {
|
|
.driver = {
|
|
.name = "lm4857",
|
|
},
|
|
.probe = lm4857_i2c_probe,
|
|
.id_table = lm4857_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(lm4857_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
|
MODULE_DESCRIPTION("LM4857 amplifier driver");
|
|
MODULE_LICENSE("GPL");
|