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// SPDX-License-Identifier: GPL-2.0
/*
* mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver
*
* Copyright (c) 2015 MediaTek Inc.
* Author: Koro Chen <koro.chen@mediatek.com>
*/
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include "../../codecs/max98090.h"
static struct snd_soc_jack mt8173_max98090_jack;
static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};
static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
{"Speaker", NULL, "SPKL"},
{"Speaker", NULL, "SPKR"},
{"DMICL", NULL, "Int Mic"},
{"Headphone", NULL, "HPL"},
{"Headphone", NULL, "HPR"},
{"Headset Mic", NULL, "MICBIAS"},
{"IN34", NULL, "Headset Mic"},
};
static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
SND_SOC_CLOCK_IN);
}
static const struct snd_soc_ops mt8173_max98090_ops = {
.hw_params = mt8173_max98090_hw_params,
};
static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
{
int ret;
struct snd_soc_card *card = runtime->card;
struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
/* enable jack detection */
ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
&mt8173_max98090_jack,
mt8173_max98090_jack_pins,
ARRAY_SIZE(mt8173_max98090_jack_pins));
if (ret) {
dev_err(card->dev, "Can't create a new Jack %d\n", ret);
return ret;
}
return max98090_mic_detect(component, &mt8173_max98090_jack);
}
SND_SOC_DAILINK_DEFS(playback,
DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(capture,
DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(hifi,
DAILINK_COMP_ARRAY(COMP_CPU("I2S")),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
/* Digital audio interface glue - connects codec <---> CPU */
static struct snd_soc_dai_link mt8173_max98090_dais[] = {
/* Front End DAI links */
{
.name = "MAX98090 Playback",
.stream_name = "MAX98090 Playback",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_playback = 1,
SND_SOC_DAILINK_REG(playback),
},
{
.name = "MAX98090 Capture",
.stream_name = "MAX98090 Capture",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(capture),
},
/* Back End DAI links */
{
.name = "Codec",
.no_pcm = 1,
.init = mt8173_max98090_init,
.ops = &mt8173_max98090_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.dpcm_playback = 1,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(hifi),
},
};
static struct snd_soc_card mt8173_max98090_card = {
.name = "mt8173-max98090",
.owner = THIS_MODULE,
.dai_link = mt8173_max98090_dais,
.num_links = ARRAY_SIZE(mt8173_max98090_dais),
.controls = mt8173_max98090_controls,
.num_controls = ARRAY_SIZE(mt8173_max98090_controls),
.dapm_widgets = mt8173_max98090_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
.dapm_routes = mt8173_max98090_routes,
.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
};
static int mt8173_max98090_dev_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt8173_max98090_card;
struct device_node *codec_node, *platform_node;
struct snd_soc_dai_link *dai_link;
int ret, i;
platform_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,platform", 0);
if (!platform_node) {
dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
return -EINVAL;
}
for_each_card_prelinks(card, i, dai_link) {
if (dai_link->platforms->name)
continue;
dai_link->platforms->of_node = platform_node;
}
codec_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,audio-codec", 0);
if (!codec_node) {
dev_err(&pdev->dev,
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
for_each_card_prelinks(card, i, dai_link) {
if (dai_link->codecs->name)
continue;
dai_link->codecs->of_node = codec_node;
}
card->dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, card);
of_node_put(codec_node);
of_node_put(platform_node);
return ret;
}
static const struct of_device_id mt8173_max98090_dt_match[] = {
{ .compatible = "mediatek,mt8173-max98090", },
{ }
};
MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
static struct platform_driver mt8173_max98090_driver = {
.driver = {
.name = "mt8173-max98090",
.of_match_table = mt8173_max98090_dt_match,
.pm = &snd_soc_pm_ops,
},
.probe = mt8173_max98090_dev_probe,
};
module_platform_driver(mt8173_max98090_driver);
/* Module information */
MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:mt8173-max98090");
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