1 // SPDX-License-Identifier: GPL-2.0-or-later 1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* 2 /*
3 * LM4857 AMP driver 3 * LM4857 AMP driver
4 * 4 *
5 * Copyright 2007 Wolfson Microelectronics PLC 5 * Copyright 2007 Wolfson Microelectronics PLC.
6 * Author: Graeme Gregory 6 * Author: Graeme Gregory
7 * graeme.gregory@wolfsonmicro.com 7 * graeme.gregory@wolfsonmicro.com
8 * Copyright 2011 Lars-Peter Clausen <lars@met 8 * Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
9 */ 9 */
10 10
11 #include <linux/init.h> 11 #include <linux/init.h>
12 #include <linux/module.h> 12 #include <linux/module.h>
13 #include <linux/i2c.h> 13 #include <linux/i2c.h>
14 #include <linux/regmap.h> 14 #include <linux/regmap.h>
15 #include <linux/slab.h> 15 #include <linux/slab.h>
16 16
17 #include <sound/core.h> 17 #include <sound/core.h>
18 #include <sound/soc.h> 18 #include <sound/soc.h>
19 #include <sound/tlv.h> 19 #include <sound/tlv.h>
20 20
21 static const struct reg_default lm4857_default 21 static const struct reg_default lm4857_default_regs[] = {
22 { 0x0, 0x00 }, 22 { 0x0, 0x00 },
23 { 0x1, 0x00 }, 23 { 0x1, 0x00 },
24 { 0x2, 0x00 }, 24 { 0x2, 0x00 },
25 { 0x3, 0x00 }, 25 { 0x3, 0x00 },
26 }; 26 };
27 27
28 /* The register offsets in the cache array */ 28 /* The register offsets in the cache array */
29 #define LM4857_MVOL 0 29 #define LM4857_MVOL 0
30 #define LM4857_LVOL 1 30 #define LM4857_LVOL 1
31 #define LM4857_RVOL 2 31 #define LM4857_RVOL 2
32 #define LM4857_CTRL 3 32 #define LM4857_CTRL 3
33 33
34 /* the shifts required to set these bits */ 34 /* the shifts required to set these bits */
35 #define LM4857_3D 5 35 #define LM4857_3D 5
36 #define LM4857_WAKEUP 5 36 #define LM4857_WAKEUP 5
37 #define LM4857_EPGAIN 4 37 #define LM4857_EPGAIN 4
38 38
39 static const unsigned int lm4857_mode_values[] 39 static const unsigned int lm4857_mode_values[] = {
40 0, 40 0,
41 6, 41 6,
42 7, 42 7,
43 8, 43 8,
44 9, 44 9,
45 }; 45 };
46 46
47 static const char * const lm4857_mode_texts[] 47 static const char * const lm4857_mode_texts[] = {
48 "Off", 48 "Off",
49 "Earpiece", 49 "Earpiece",
50 "Loudspeaker", 50 "Loudspeaker",
51 "Loudspeaker + Headphone", 51 "Loudspeaker + Headphone",
52 "Headphone", 52 "Headphone",
53 }; 53 };
54 54
55 static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL( 55 static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(lm4857_mode_enum,
56 LM4857_CTRL, 0, 0xf, lm4857_mode_texts 56 LM4857_CTRL, 0, 0xf, lm4857_mode_texts, lm4857_mode_values);
57 57
58 static const struct snd_kcontrol_new lm4857_mo 58 static const struct snd_kcontrol_new lm4857_mode_ctrl =
59 SOC_DAPM_ENUM("Mode", lm4857_mode_enum 59 SOC_DAPM_ENUM("Mode", lm4857_mode_enum);
60 60
61 static const struct snd_soc_dapm_widget lm4857 61 static const struct snd_soc_dapm_widget lm4857_dapm_widgets[] = {
62 SND_SOC_DAPM_INPUT("IN"), 62 SND_SOC_DAPM_INPUT("IN"),
63 63
64 SND_SOC_DAPM_DEMUX("Mode", SND_SOC_NOP 64 SND_SOC_DAPM_DEMUX("Mode", SND_SOC_NOPM, 0, 0, &lm4857_mode_ctrl),
65 65
66 SND_SOC_DAPM_OUTPUT("LS"), 66 SND_SOC_DAPM_OUTPUT("LS"),
67 SND_SOC_DAPM_OUTPUT("HP"), 67 SND_SOC_DAPM_OUTPUT("HP"),
68 SND_SOC_DAPM_OUTPUT("EP"), 68 SND_SOC_DAPM_OUTPUT("EP"),
69 }; 69 };
70 70
71 static const DECLARE_TLV_DB_SCALE(stereo_tlv, 71 static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
72 static const DECLARE_TLV_DB_SCALE(mono_tlv, -3 72 static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
73 73
74 static const struct snd_kcontrol_new lm4857_co 74 static const struct snd_kcontrol_new lm4857_controls[] = {
75 SOC_SINGLE_TLV("Left Playback Volume", 75 SOC_SINGLE_TLV("Left Playback Volume", LM4857_LVOL, 0, 31, 0,
76 stereo_tlv), 76 stereo_tlv),
77 SOC_SINGLE_TLV("Right Playback Volume" 77 SOC_SINGLE_TLV("Right Playback Volume", LM4857_RVOL, 0, 31, 0,
78 stereo_tlv), 78 stereo_tlv),
79 SOC_SINGLE_TLV("Mono Playback Volume", 79 SOC_SINGLE_TLV("Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
80 mono_tlv), 80 mono_tlv),
81 SOC_SINGLE("Spk 3D Playback Switch", L 81 SOC_SINGLE("Spk 3D Playback Switch", LM4857_LVOL, LM4857_3D, 1, 0),
82 SOC_SINGLE("HP 3D Playback Switch", LM 82 SOC_SINGLE("HP 3D Playback Switch", LM4857_RVOL, LM4857_3D, 1, 0),
83 SOC_SINGLE("Fast Wakeup Playback Switc 83 SOC_SINGLE("Fast Wakeup Playback Switch", LM4857_CTRL,
84 LM4857_WAKEUP, 1, 0), 84 LM4857_WAKEUP, 1, 0),
85 SOC_SINGLE("Earpiece 6dB Playback Swit 85 SOC_SINGLE("Earpiece 6dB Playback Switch", LM4857_CTRL,
86 LM4857_EPGAIN, 1, 0), 86 LM4857_EPGAIN, 1, 0),
87 }; 87 };
88 88
89 static const struct snd_soc_dapm_route lm4857_ 89 static const struct snd_soc_dapm_route lm4857_routes[] = {
90 { "Mode", NULL, "IN" }, 90 { "Mode", NULL, "IN" },
91 { "LS", "Loudspeaker", "Mode" }, 91 { "LS", "Loudspeaker", "Mode" },
92 { "LS", "Loudspeaker + Headphone", "Mo 92 { "LS", "Loudspeaker + Headphone", "Mode" },
93 { "HP", "Headphone", "Mode" }, 93 { "HP", "Headphone", "Mode" },
94 { "HP", "Loudspeaker + Headphone", "Mo 94 { "HP", "Loudspeaker + Headphone", "Mode" },
95 { "EP", "Earpiece", "Mode" }, 95 { "EP", "Earpiece", "Mode" },
96 }; 96 };
97 97
98 static const struct snd_soc_component_driver l 98 static const struct snd_soc_component_driver lm4857_component_driver = {
99 .controls = lm4857_controls, 99 .controls = lm4857_controls,
100 .num_controls = ARRAY_SIZE(lm4857_cont 100 .num_controls = ARRAY_SIZE(lm4857_controls),
101 .dapm_widgets = lm4857_dapm_widgets, 101 .dapm_widgets = lm4857_dapm_widgets,
102 .num_dapm_widgets = ARRAY_SIZE(lm4857_ 102 .num_dapm_widgets = ARRAY_SIZE(lm4857_dapm_widgets),
103 .dapm_routes = lm4857_routes, 103 .dapm_routes = lm4857_routes,
104 .num_dapm_routes = ARRAY_SIZE(lm4857_r 104 .num_dapm_routes = ARRAY_SIZE(lm4857_routes),
105 }; 105 };
106 106
107 static const struct regmap_config lm4857_regma 107 static const struct regmap_config lm4857_regmap_config = {
108 .val_bits = 6, 108 .val_bits = 6,
109 .reg_bits = 2, 109 .reg_bits = 2,
110 110
111 .max_register = LM4857_CTRL, 111 .max_register = LM4857_CTRL,
112 112
113 .cache_type = REGCACHE_FLAT, 113 .cache_type = REGCACHE_FLAT,
114 .reg_defaults = lm4857_default_regs, 114 .reg_defaults = lm4857_default_regs,
115 .num_reg_defaults = ARRAY_SIZE(lm4857_ 115 .num_reg_defaults = ARRAY_SIZE(lm4857_default_regs),
116 }; 116 };
117 117
118 static int lm4857_i2c_probe(struct i2c_client !! 118 static int lm4857_i2c_probe(struct i2c_client *i2c,
>> 119 const struct i2c_device_id *id)
119 { 120 {
120 struct regmap *regmap; 121 struct regmap *regmap;
121 122
122 regmap = devm_regmap_init_i2c(i2c, &lm 123 regmap = devm_regmap_init_i2c(i2c, &lm4857_regmap_config);
123 if (IS_ERR(regmap)) 124 if (IS_ERR(regmap))
124 return PTR_ERR(regmap); 125 return PTR_ERR(regmap);
125 126
126 return devm_snd_soc_register_component 127 return devm_snd_soc_register_component(&i2c->dev,
127 &lm4857_component_driver, NULL 128 &lm4857_component_driver, NULL, 0);
128 } 129 }
129 130
130 static const struct i2c_device_id lm4857_i2c_i 131 static const struct i2c_device_id lm4857_i2c_id[] = {
131 { "lm4857" }, !! 132 { "lm4857", 0 },
132 { } 133 { }
133 }; 134 };
134 MODULE_DEVICE_TABLE(i2c, lm4857_i2c_id); 135 MODULE_DEVICE_TABLE(i2c, lm4857_i2c_id);
135 136
136 static struct i2c_driver lm4857_i2c_driver = { 137 static struct i2c_driver lm4857_i2c_driver = {
137 .driver = { 138 .driver = {
138 .name = "lm4857", 139 .name = "lm4857",
139 }, 140 },
140 .probe = lm4857_i2c_probe, 141 .probe = lm4857_i2c_probe,
141 .id_table = lm4857_i2c_id, 142 .id_table = lm4857_i2c_id,
142 }; 143 };
143 144
144 module_i2c_driver(lm4857_i2c_driver); 145 module_i2c_driver(lm4857_i2c_driver);
145 146
146 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafo 147 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
147 MODULE_DESCRIPTION("LM4857 amplifier driver"); 148 MODULE_DESCRIPTION("LM4857 amplifier driver");
148 MODULE_LICENSE("GPL"); 149 MODULE_LICENSE("GPL");
149 150
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.