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
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 {"IN34", NULL
, "MICBIAS"},
43 {"MICBIAS", NULL
, "Headset Mic"},
44 {"DMICL", NULL
, "Int Mic"},
45 {"Headphone", NULL
, "HPL"},
46 {"Headphone", NULL
, "HPR"},
47 {"Ext Spk", NULL
, "SPKL"},
48 {"Ext Spk", NULL
, "SPKR"},
51 static const struct snd_kcontrol_new byt_max98090_controls
[] = {
52 SOC_DAPM_PIN_SWITCH("Headphone"),
53 SOC_DAPM_PIN_SWITCH("Headset Mic"),
54 SOC_DAPM_PIN_SWITCH("Int Mic"),
55 SOC_DAPM_PIN_SWITCH("Ext Spk"),
58 static struct snd_soc_jack_pin hs_jack_pins
[] = {
61 .mask
= SND_JACK_HEADPHONE
,
65 .mask
= SND_JACK_MICROPHONE
,
69 .mask
= SND_JACK_LINEOUT
,
73 .mask
= SND_JACK_LINEIN
,
77 static struct snd_soc_jack_gpio hs_jack_gpios
[] = {
81 .report
= SND_JACK_HEADPHONE
| SND_JACK_LINEOUT
,
87 .report
= SND_JACK_MICROPHONE
| SND_JACK_LINEIN
,
92 static int byt_max98090_init(struct snd_soc_pcm_runtime
*runtime
)
95 struct snd_soc_codec
*codec
= runtime
->codec
;
96 struct snd_soc_card
*card
= runtime
->card
;
97 struct byt_max98090_private
*drv
= snd_soc_card_get_drvdata(card
);
98 struct snd_soc_jack
*jack
= &drv
->jack
;
100 card
->dapm
.idle_bias_off
= true;
102 ret
= snd_soc_dai_set_sysclk(runtime
->codec_dai
,
103 M98090_REG_SYSTEM_CLOCK
,
104 25000000, SND_SOC_CLOCK_IN
);
106 dev_err(card
->dev
, "Can't set codec clock %d\n", ret
);
110 /* Enable jack detection */
111 ret
= snd_soc_jack_new(codec
, "Headphone", SND_JACK_HEADPHONE
, jack
);
115 ret
= snd_soc_jack_add_pins(jack
, ARRAY_SIZE(hs_jack_pins
),
120 ret
= snd_soc_jack_add_gpiods(card
->dev
->parent
, jack
,
121 ARRAY_SIZE(hs_jack_gpios
),
126 return max98090_mic_detect(codec
, jack
);
129 static struct snd_soc_dai_link byt_max98090_dais
[] = {
131 .name
= "Baytrail Audio",
132 .stream_name
= "Audio",
133 .cpu_dai_name
= "baytrail-pcm-audio",
134 .codec_dai_name
= "HiFi",
135 .codec_name
= "i2c-193C9890:00",
136 .platform_name
= "baytrail-pcm-audio",
137 .init
= byt_max98090_init
,
138 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
139 SND_SOC_DAIFMT_CBS_CFS
,
143 static struct snd_soc_card byt_max98090_card
= {
144 .name
= "byt-max98090",
145 .dai_link
= byt_max98090_dais
,
146 .num_links
= ARRAY_SIZE(byt_max98090_dais
),
147 .dapm_widgets
= byt_max98090_widgets
,
148 .num_dapm_widgets
= ARRAY_SIZE(byt_max98090_widgets
),
149 .dapm_routes
= byt_max98090_audio_map
,
150 .num_dapm_routes
= ARRAY_SIZE(byt_max98090_audio_map
),
151 .controls
= byt_max98090_controls
,
152 .num_controls
= ARRAY_SIZE(byt_max98090_controls
),
155 static int byt_max98090_probe(struct platform_device
*pdev
)
158 struct byt_max98090_private
*priv
;
160 priv
= devm_kzalloc(&pdev
->dev
, sizeof(*priv
), GFP_ATOMIC
);
162 dev_err(&pdev
->dev
, "allocation failed\n");
166 byt_max98090_card
.dev
= &pdev
->dev
;
167 snd_soc_card_set_drvdata(&byt_max98090_card
, priv
);
168 ret_val
= devm_snd_soc_register_card(&pdev
->dev
, &byt_max98090_card
);
171 "snd_soc_register_card failed %d\n", ret_val
);
178 static int byt_max98090_remove(struct platform_device
*pdev
)
180 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
181 struct byt_max98090_private
*priv
= snd_soc_card_get_drvdata(card
);
183 snd_soc_jack_free_gpios(&priv
->jack
, ARRAY_SIZE(hs_jack_gpios
),
189 static struct platform_driver byt_max98090_driver
= {
190 .probe
= byt_max98090_probe
,
191 .remove
= byt_max98090_remove
,
193 .name
= "byt-max98090",
194 .owner
= THIS_MODULE
,
195 .pm
= &snd_soc_pm_ops
,
198 module_platform_driver(byt_max98090_driver
)
200 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
201 MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
202 MODULE_LICENSE("GPL v2");
203 MODULE_ALIAS("platform:byt-max98090");