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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3c1af8802e
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
193 lines
5.0 KiB
C
193 lines
5.0 KiB
C
/*
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* Intel Baytrail SST MAX98090 machine driver
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/acpi.h>
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#include <linux/device.h>
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#include <linux/gpio.h>
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#include <linux/gpio/consumer.h>
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#include <linux/slab.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include "../codecs/max98090.h"
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struct byt_max98090_private {
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struct snd_soc_jack jack;
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};
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static const struct snd_soc_dapm_widget byt_max98090_widgets[] = {
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SND_SOC_DAPM_HP("Headphone", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Int Mic", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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};
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static const struct snd_soc_dapm_route byt_max98090_audio_map[] = {
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{"IN34", NULL, "Headset Mic"},
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{"Headset Mic", NULL, "MICBIAS"},
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{"DMICL", NULL, "Int Mic"},
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{"Headphone", NULL, "HPL"},
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{"Headphone", NULL, "HPR"},
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{"Ext Spk", NULL, "SPKL"},
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{"Ext Spk", NULL, "SPKR"},
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};
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static const struct snd_kcontrol_new byt_max98090_controls[] = {
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SOC_DAPM_PIN_SWITCH("Headphone"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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SOC_DAPM_PIN_SWITCH("Int Mic"),
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SOC_DAPM_PIN_SWITCH("Ext Spk"),
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};
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headphone",
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.mask = SND_JACK_HEADPHONE,
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},
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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};
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static struct snd_soc_jack_gpio hs_jack_gpios[] = {
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{
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.name = "hp-gpio",
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.idx = 0,
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.report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
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.debounce_time = 200,
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},
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{
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.name = "mic-gpio",
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.idx = 1,
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.invert = 1,
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.report = SND_JACK_MICROPHONE,
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.debounce_time = 200,
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},
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};
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static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime)
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{
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int ret;
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struct snd_soc_codec *codec = runtime->codec;
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struct snd_soc_card *card = runtime->card;
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struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card);
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struct snd_soc_jack *jack = &drv->jack;
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card->dapm.idle_bias_off = true;
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ret = snd_soc_dai_set_sysclk(runtime->codec_dai,
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M98090_REG_SYSTEM_CLOCK,
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25000000, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(card->dev, "Can't set codec clock %d\n", ret);
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return ret;
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}
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/* Enable jack detection */
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ret = snd_soc_jack_new(codec, "Headset",
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SND_JACK_LINEOUT | SND_JACK_HEADSET, jack);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_pins(jack, ARRAY_SIZE(hs_jack_pins),
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hs_jack_pins);
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if (ret)
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return ret;
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return snd_soc_jack_add_gpiods(card->dev->parent, jack,
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ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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}
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static struct snd_soc_dai_link byt_max98090_dais[] = {
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{
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.name = "Baytrail Audio",
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.stream_name = "Audio",
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.cpu_dai_name = "baytrail-pcm-audio",
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.codec_dai_name = "HiFi",
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.codec_name = "i2c-193C9890:00",
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.platform_name = "baytrail-pcm-audio",
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.init = byt_max98090_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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},
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};
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static struct snd_soc_card byt_max98090_card = {
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.name = "byt-max98090",
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.dai_link = byt_max98090_dais,
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.num_links = ARRAY_SIZE(byt_max98090_dais),
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.dapm_widgets = byt_max98090_widgets,
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.num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets),
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.dapm_routes = byt_max98090_audio_map,
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.num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map),
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.controls = byt_max98090_controls,
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.num_controls = ARRAY_SIZE(byt_max98090_controls),
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.fully_routed = true,
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};
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static int byt_max98090_probe(struct platform_device *pdev)
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{
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int ret_val = 0;
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struct byt_max98090_private *priv;
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priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
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if (!priv) {
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dev_err(&pdev->dev, "allocation failed\n");
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return -ENOMEM;
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}
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byt_max98090_card.dev = &pdev->dev;
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snd_soc_card_set_drvdata(&byt_max98090_card, priv);
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ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card);
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if (ret_val) {
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dev_err(&pdev->dev,
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"snd_soc_register_card failed %d\n", ret_val);
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return ret_val;
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}
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return ret_val;
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}
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static int byt_max98090_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct byt_max98090_private *priv = snd_soc_card_get_drvdata(card);
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snd_soc_jack_free_gpios(&priv->jack, ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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return 0;
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}
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static struct platform_driver byt_max98090_driver = {
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.probe = byt_max98090_probe,
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.remove = byt_max98090_remove,
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.driver = {
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.name = "byt-max98090",
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.pm = &snd_soc_pm_ops,
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},
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};
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module_platform_driver(byt_max98090_driver)
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MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
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MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:byt-max98090");
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