Linux 4.15.6
[linux/fpc-iii.git] / sound / soc / intel / boards / byt-max98090.c
blob0f8b8209c0203d80ccc88aa0e65a5cc4cfe1807a
1 /*
2 * Intel Baytrail SST MAX98090 machine driver
3 * Copyright (c) 2014, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
15 #include <linux/init.h>
16 #include <linux/module.h>
17 #include <linux/platform_device.h>
18 #include <linux/acpi.h>
19 #include <linux/device.h>
20 #include <linux/gpio.h>
21 #include <linux/gpio/consumer.h>
22 #include <linux/slab.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/jack.h>
27 #include "../../codecs/max98090.h"
29 struct byt_max98090_private {
30 struct snd_soc_jack jack;
33 static const struct snd_soc_dapm_widget byt_max98090_widgets[] = {
34 SND_SOC_DAPM_HP("Headphone", NULL),
35 SND_SOC_DAPM_MIC("Headset Mic", NULL),
36 SND_SOC_DAPM_MIC("Int Mic", NULL),
37 SND_SOC_DAPM_SPK("Ext Spk", NULL),
40 static const struct snd_soc_dapm_route byt_max98090_audio_map[] = {
41 {"IN34", NULL, "Headset Mic"},
42 {"Headset Mic", NULL, "MICBIAS"},
43 {"DMICL", NULL, "Int Mic"},
44 {"Headphone", NULL, "HPL"},
45 {"Headphone", NULL, "HPR"},
46 {"Ext Spk", NULL, "SPKL"},
47 {"Ext Spk", NULL, "SPKR"},
50 static const struct snd_kcontrol_new byt_max98090_controls[] = {
51 SOC_DAPM_PIN_SWITCH("Headphone"),
52 SOC_DAPM_PIN_SWITCH("Headset Mic"),
53 SOC_DAPM_PIN_SWITCH("Int Mic"),
54 SOC_DAPM_PIN_SWITCH("Ext Spk"),
57 static struct snd_soc_jack_pin hs_jack_pins[] = {
59 .pin = "Headphone",
60 .mask = SND_JACK_HEADPHONE,
63 .pin = "Headset Mic",
64 .mask = SND_JACK_MICROPHONE,
68 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
70 .name = "hp",
71 .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
72 .debounce_time = 200,
75 .name = "mic",
76 .invert = 1,
77 .report = SND_JACK_MICROPHONE,
78 .debounce_time = 200,
82 static const struct acpi_gpio_params hp_gpios = { 0, 0, false };
83 static const struct acpi_gpio_params mic_gpios = { 1, 0, false };
85 static const struct acpi_gpio_mapping acpi_byt_max98090_gpios[] = {
86 { "hp-gpios", &hp_gpios, 1 },
87 { "mic-gpios", &mic_gpios, 1 },
88 {},
91 static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime)
93 int ret;
94 struct snd_soc_card *card = runtime->card;
95 struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card);
96 struct snd_soc_jack *jack = &drv->jack;
98 card->dapm.idle_bias_off = true;
100 ret = snd_soc_dai_set_sysclk(runtime->codec_dai,
101 M98090_REG_SYSTEM_CLOCK,
102 25000000, SND_SOC_CLOCK_IN);
103 if (ret < 0) {
104 dev_err(card->dev, "Can't set codec clock %d\n", ret);
105 return ret;
108 /* Enable jack detection */
109 ret = snd_soc_card_jack_new(runtime->card, "Headset",
110 SND_JACK_LINEOUT | SND_JACK_HEADSET, jack,
111 hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
112 if (ret)
113 return ret;
115 return snd_soc_jack_add_gpiods(card->dev->parent, jack,
116 ARRAY_SIZE(hs_jack_gpios),
117 hs_jack_gpios);
120 static struct snd_soc_dai_link byt_max98090_dais[] = {
122 .name = "Baytrail Audio",
123 .stream_name = "Audio",
124 .cpu_dai_name = "baytrail-pcm-audio",
125 .codec_dai_name = "HiFi",
126 .codec_name = "i2c-193C9890:00",
127 .platform_name = "baytrail-pcm-audio",
128 .init = byt_max98090_init,
129 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
130 SND_SOC_DAIFMT_CBS_CFS,
134 static struct snd_soc_card byt_max98090_card = {
135 .name = "byt-max98090",
136 .owner = THIS_MODULE,
137 .dai_link = byt_max98090_dais,
138 .num_links = ARRAY_SIZE(byt_max98090_dais),
139 .dapm_widgets = byt_max98090_widgets,
140 .num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets),
141 .dapm_routes = byt_max98090_audio_map,
142 .num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map),
143 .controls = byt_max98090_controls,
144 .num_controls = ARRAY_SIZE(byt_max98090_controls),
145 .fully_routed = true,
148 static int byt_max98090_probe(struct platform_device *pdev)
150 struct device *dev = &pdev->dev;
151 struct byt_max98090_private *priv;
152 int ret_val;
154 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
155 if (!priv) {
156 dev_err(&pdev->dev, "allocation failed\n");
157 return -ENOMEM;
160 ret_val = devm_acpi_dev_add_driver_gpios(dev->parent, acpi_byt_max98090_gpios);
161 if (ret_val)
162 dev_dbg(dev, "Unable to add GPIO mapping table\n");
164 byt_max98090_card.dev = &pdev->dev;
165 snd_soc_card_set_drvdata(&byt_max98090_card, priv);
166 ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card);
167 if (ret_val) {
168 dev_err(&pdev->dev,
169 "snd_soc_register_card failed %d\n", ret_val);
170 return ret_val;
173 return 0;
176 static struct platform_driver byt_max98090_driver = {
177 .probe = byt_max98090_probe,
178 .driver = {
179 .name = "byt-max98090",
180 .pm = &snd_soc_pm_ops,
183 module_platform_driver(byt_max98090_driver)
185 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
186 MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
187 MODULE_LICENSE("GPL v2");
188 MODULE_ALIAS("platform:byt-max98090");