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650 lines
16 KiB
650 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based |
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* platforms Cherrytrail and Braswell, with max98090 & TI codec. |
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* |
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* Copyright (C) 2015 Intel Corp |
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* Author: Fang, Yang A <[email protected]> |
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* This file is modified from cht_bsw_rt5645.c |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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* |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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*/ |
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#include <linux/dmi.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/slab.h> |
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#include <linux/acpi.h> |
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#include <linux/clk.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/soc-acpi.h> |
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#include <sound/jack.h> |
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#include "../../codecs/max98090.h" |
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#include "../atom/sst-atom-controls.h" |
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#include "../../codecs/ts3a227e.h" |
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#define CHT_PLAT_CLK_3_HZ 19200000 |
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#define CHT_CODEC_DAI "HiFi" |
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#define QUIRK_PMC_PLT_CLK_0 0x01 |
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struct cht_mc_private { |
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struct clk *mclk; |
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struct snd_soc_jack jack; |
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bool ts3a227e_present; |
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int quirks; |
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}; |
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static int platform_clock_control(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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struct snd_soc_dapm_context *dapm = w->dapm; |
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struct snd_soc_card *card = dapm->card; |
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struct snd_soc_dai *codec_dai; |
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struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); |
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int ret; |
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/* See the comment in snd_cht_mc_probe() */ |
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if (ctx->quirks & QUIRK_PMC_PLT_CLK_0) |
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return 0; |
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codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI); |
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if (!codec_dai) { |
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dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); |
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return -EIO; |
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} |
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if (SND_SOC_DAPM_EVENT_ON(event)) { |
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ret = clk_prepare_enable(ctx->mclk); |
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if (ret < 0) { |
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dev_err(card->dev, |
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"could not configure MCLK state"); |
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return ret; |
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} |
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} else { |
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clk_disable_unprepare(ctx->mclk); |
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} |
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return 0; |
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} |
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static const struct snd_soc_dapm_widget cht_dapm_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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SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, |
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platform_clock_control, SND_SOC_DAPM_PRE_PMU | |
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SND_SOC_DAPM_POST_PMD), |
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}; |
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static const struct snd_soc_dapm_route cht_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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{"HiFi Playback", NULL, "ssp2 Tx"}, |
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{"ssp2 Tx", NULL, "codec_out0"}, |
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{"ssp2 Tx", NULL, "codec_out1"}, |
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{"codec_in0", NULL, "ssp2 Rx" }, |
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{"codec_in1", NULL, "ssp2 Rx" }, |
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{"ssp2 Rx", NULL, "HiFi Capture"}, |
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{"Headphone", NULL, "Platform Clock"}, |
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{"Headset Mic", NULL, "Platform Clock"}, |
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{"Int Mic", NULL, "Platform Clock"}, |
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{"Ext Spk", NULL, "Platform Clock"}, |
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}; |
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static const struct snd_kcontrol_new cht_mc_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 int cht_aif1_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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int ret; |
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ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK, |
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CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int cht_ti_jack_event(struct notifier_block *nb, |
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unsigned long event, void *data) |
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{ |
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struct snd_soc_jack *jack = (struct snd_soc_jack *)data; |
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struct snd_soc_dapm_context *dapm = &jack->card->dapm; |
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if (event & SND_JACK_MICROPHONE) { |
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snd_soc_dapm_force_enable_pin(dapm, "SHDN"); |
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snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); |
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snd_soc_dapm_sync(dapm); |
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} else { |
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snd_soc_dapm_disable_pin(dapm, "MICBIAS"); |
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snd_soc_dapm_disable_pin(dapm, "SHDN"); |
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snd_soc_dapm_sync(dapm); |
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} |
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return 0; |
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} |
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static struct notifier_block cht_jack_nb = { |
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.notifier_call = cht_ti_jack_event, |
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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", |
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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", |
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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 const struct acpi_gpio_params hp_gpios = { 0, 0, false }; |
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static const struct acpi_gpio_params mic_gpios = { 1, 0, false }; |
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static const struct acpi_gpio_mapping acpi_max98090_gpios[] = { |
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{ "hp-gpios", &hp_gpios, 1 }, |
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{ "mic-gpios", &mic_gpios, 1 }, |
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{}, |
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}; |
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static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) |
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{ |
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int ret; |
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int jack_type; |
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struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); |
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struct snd_soc_jack *jack = &ctx->jack; |
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if (ctx->ts3a227e_present) { |
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/* |
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* The jack has already been created in the |
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* cht_max98090_headset_init() function. |
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*/ |
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snd_soc_jack_notifier_register(jack, &cht_jack_nb); |
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return 0; |
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} |
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jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; |
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ret = snd_soc_card_jack_new_pins(runtime->card, "Headset Jack", |
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jack_type, jack, |
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hs_jack_pins, |
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ARRAY_SIZE(hs_jack_pins)); |
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if (ret) { |
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dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_jack_add_gpiods(runtime->card->dev->parent, jack, |
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ARRAY_SIZE(hs_jack_gpios), |
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hs_jack_gpios); |
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if (ret) { |
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/* |
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* flag error but don't bail if jack detect is broken |
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* due to platform issues or bad BIOS/configuration |
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*/ |
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dev_err(runtime->dev, |
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"jack detection gpios not added, error %d\n", ret); |
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} |
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/* See the comment in snd_cht_mc_probe() */ |
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if (ctx->quirks & QUIRK_PMC_PLT_CLK_0) |
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return 0; |
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/* |
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* The firmware might enable the clock at |
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* boot (this information may or may not |
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* be reflected in the enable clock register). |
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* To change the rate we must disable the clock |
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* first to cover these cases. Due to common |
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* clock framework restrictions that do not allow |
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* to disable a clock that has not been enabled, |
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* we need to enable the clock first. |
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*/ |
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ret = clk_prepare_enable(ctx->mclk); |
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if (!ret) |
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clk_disable_unprepare(ctx->mclk); |
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ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ); |
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if (ret) |
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dev_err(runtime->dev, "unable to set MCLK rate\n"); |
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return ret; |
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} |
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static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_interval *rate = hw_param_interval(params, |
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SNDRV_PCM_HW_PARAM_RATE); |
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struct snd_interval *channels = hw_param_interval(params, |
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SNDRV_PCM_HW_PARAM_CHANNELS); |
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int ret = 0; |
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unsigned int fmt = 0; |
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ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 16); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); |
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return ret; |
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} |
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fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BP_FP; |
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ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), fmt); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); |
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return ret; |
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} |
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/* The DSP will covert the FE rate to 48k, stereo, 24bits */ |
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rate->min = rate->max = 48000; |
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channels->min = channels->max = 2; |
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/* set SSP2 to 16-bit */ |
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params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); |
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return 0; |
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} |
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static int cht_aif1_startup(struct snd_pcm_substream *substream) |
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{ |
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return snd_pcm_hw_constraint_single(substream->runtime, |
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SNDRV_PCM_HW_PARAM_RATE, 48000); |
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} |
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static int cht_max98090_headset_init(struct snd_soc_component *component) |
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{ |
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struct snd_soc_card *card = component->card; |
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struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); |
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struct snd_soc_jack *jack = &ctx->jack; |
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int jack_type; |
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int ret; |
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/* |
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* TI supports 4 buttons headset detection |
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* KEY_MEDIA |
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* KEY_VOICECOMMAND |
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* KEY_VOLUMEUP |
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* KEY_VOLUMEDOWN |
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*/ |
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jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | |
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SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
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SND_JACK_BTN_2 | SND_JACK_BTN_3; |
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ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type, jack); |
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if (ret) { |
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dev_err(card->dev, "Headset Jack creation failed %d\n", ret); |
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return ret; |
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} |
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return ts3a227e_enable_jack_detect(component, jack); |
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} |
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static const struct snd_soc_ops cht_aif1_ops = { |
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.startup = cht_aif1_startup, |
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}; |
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static const struct snd_soc_ops cht_be_ssp2_ops = { |
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.hw_params = cht_aif1_hw_params, |
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}; |
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static struct snd_soc_aux_dev cht_max98090_headset_dev = { |
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.dlc = COMP_AUX("i2c-104C227E:00"), |
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.init = cht_max98090_headset_init, |
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}; |
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SND_SOC_DAILINK_DEF(dummy, |
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DAILINK_COMP_ARRAY(COMP_DUMMY())); |
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SND_SOC_DAILINK_DEF(media, |
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DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); |
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SND_SOC_DAILINK_DEF(deepbuffer, |
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DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); |
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SND_SOC_DAILINK_DEF(ssp2_port, |
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DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); |
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SND_SOC_DAILINK_DEF(ssp2_codec, |
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-193C9890:00", "HiFi"))); |
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SND_SOC_DAILINK_DEF(platform, |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); |
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static struct snd_soc_dai_link cht_dailink[] = { |
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[MERR_DPCM_AUDIO] = { |
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.name = "Audio Port", |
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.stream_name = "Audio", |
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.nonatomic = true, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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.ops = &cht_aif1_ops, |
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SND_SOC_DAILINK_REG(media, dummy, platform), |
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}, |
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[MERR_DPCM_DEEP_BUFFER] = { |
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.name = "Deep-Buffer Audio Port", |
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.stream_name = "Deep-Buffer Audio", |
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.nonatomic = true, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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.ops = &cht_aif1_ops, |
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SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), |
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}, |
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/* back ends */ |
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{ |
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.name = "SSP2-Codec", |
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.id = 0, |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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| SND_SOC_DAIFMT_CBC_CFC, |
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.init = cht_codec_init, |
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.be_hw_params_fixup = cht_codec_fixup, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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.ops = &cht_be_ssp2_ops, |
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SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), |
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}, |
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}; |
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/* use space before codec name to simplify card ID, and simplify driver name */ |
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#define SOF_CARD_NAME "bytcht max98090" /* card name will be 'sof-bytcht max98090 */ |
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#define SOF_DRIVER_NAME "SOF" |
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#define CARD_NAME "chtmax98090" |
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#define DRIVER_NAME NULL /* card name will be used for driver name */ |
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/* SoC card */ |
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static struct snd_soc_card snd_soc_card_cht = { |
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.owner = THIS_MODULE, |
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.dai_link = cht_dailink, |
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.num_links = ARRAY_SIZE(cht_dailink), |
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.aux_dev = &cht_max98090_headset_dev, |
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.num_aux_devs = 1, |
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.dapm_widgets = cht_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), |
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.dapm_routes = cht_audio_map, |
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.num_dapm_routes = ARRAY_SIZE(cht_audio_map), |
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.controls = cht_mc_controls, |
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.num_controls = ARRAY_SIZE(cht_mc_controls), |
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}; |
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static const struct dmi_system_id cht_max98090_quirk_table[] = { |
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{ |
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/* Banjo model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Banjo"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Candy model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Candy"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Clapper model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Clapper"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Cyan model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Cyan"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Enguarde model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Enguarde"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Glimmer model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Glimmer"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Gnawty model Chromebook (Acer Chromebook CB3-111) */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Gnawty"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Heli model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Heli"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Kip model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Kip"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Ninja model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Ninja"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Orco model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Orco"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Quawks model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Quawks"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Rambi model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Rambi"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Squawks model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Squawks"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Sumo model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Sumo"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Swanky model Chromebook (Toshiba Chromebook 2) */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Swanky"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{ |
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/* Winky model Chromebook */ |
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.matches = { |
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DMI_MATCH(DMI_PRODUCT_NAME, "Winky"), |
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}, |
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.driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
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}, |
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{} |
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}; |
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|
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static int snd_cht_mc_probe(struct platform_device *pdev) |
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{ |
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const struct dmi_system_id *dmi_id; |
|
struct device *dev = &pdev->dev; |
|
int ret_val = 0; |
|
struct cht_mc_private *drv; |
|
const char *mclk_name; |
|
struct snd_soc_acpi_mach *mach; |
|
const char *platform_name; |
|
bool sof_parent; |
|
|
|
drv = devm_kzalloc(dev, sizeof(*drv), GFP_KERNEL); |
|
if (!drv) |
|
return -ENOMEM; |
|
|
|
dmi_id = dmi_first_match(cht_max98090_quirk_table); |
|
if (dmi_id) |
|
drv->quirks = (unsigned long)dmi_id->driver_data; |
|
|
|
drv->ts3a227e_present = acpi_dev_found("104C227E"); |
|
if (!drv->ts3a227e_present) { |
|
/* no need probe TI jack detection chip */ |
|
snd_soc_card_cht.aux_dev = NULL; |
|
snd_soc_card_cht.num_aux_devs = 0; |
|
|
|
ret_val = devm_acpi_dev_add_driver_gpios(dev->parent, |
|
acpi_max98090_gpios); |
|
if (ret_val) |
|
dev_dbg(dev, "Unable to add GPIO mapping table\n"); |
|
} |
|
|
|
/* override platform name, if required */ |
|
snd_soc_card_cht.dev = dev; |
|
mach = dev->platform_data; |
|
platform_name = mach->mach_params.platform; |
|
|
|
ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht, |
|
platform_name); |
|
if (ret_val) |
|
return ret_val; |
|
|
|
/* register the soc card */ |
|
snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); |
|
|
|
if (drv->quirks & QUIRK_PMC_PLT_CLK_0) |
|
mclk_name = "pmc_plt_clk_0"; |
|
else |
|
mclk_name = "pmc_plt_clk_3"; |
|
|
|
drv->mclk = devm_clk_get(dev, mclk_name); |
|
if (IS_ERR(drv->mclk)) { |
|
dev_err(dev, |
|
"Failed to get MCLK from %s: %ld\n", |
|
mclk_name, PTR_ERR(drv->mclk)); |
|
return PTR_ERR(drv->mclk); |
|
} |
|
|
|
/* |
|
* Boards which have the MAX98090's clk connected to clk_0 do not seem |
|
* to like it if we muck with the clock. If we disable the clock when |
|
* it is unused we get "max98090 i2c-193C9890:00: PLL unlocked" errors |
|
* and the PLL never seems to lock again. |
|
* So for these boards we enable it here once and leave it at that. |
|
*/ |
|
if (drv->quirks & QUIRK_PMC_PLT_CLK_0) { |
|
ret_val = clk_prepare_enable(drv->mclk); |
|
if (ret_val < 0) { |
|
dev_err(dev, "MCLK enable error: %d\n", ret_val); |
|
return ret_val; |
|
} |
|
} |
|
|
|
sof_parent = snd_soc_acpi_sof_parent(dev); |
|
|
|
/* set card and driver name */ |
|
if (sof_parent) { |
|
snd_soc_card_cht.name = SOF_CARD_NAME; |
|
snd_soc_card_cht.driver_name = SOF_DRIVER_NAME; |
|
} else { |
|
snd_soc_card_cht.name = CARD_NAME; |
|
snd_soc_card_cht.driver_name = DRIVER_NAME; |
|
} |
|
|
|
/* set pm ops */ |
|
if (sof_parent) |
|
dev->driver->pm = &snd_soc_pm_ops; |
|
|
|
ret_val = devm_snd_soc_register_card(dev, &snd_soc_card_cht); |
|
if (ret_val) { |
|
dev_err(dev, |
|
"snd_soc_register_card failed %d\n", ret_val); |
|
return ret_val; |
|
} |
|
platform_set_drvdata(pdev, &snd_soc_card_cht); |
|
return ret_val; |
|
} |
|
|
|
static int snd_cht_mc_remove(struct platform_device *pdev) |
|
{ |
|
struct snd_soc_card *card = platform_get_drvdata(pdev); |
|
struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); |
|
|
|
if (ctx->quirks & QUIRK_PMC_PLT_CLK_0) |
|
clk_disable_unprepare(ctx->mclk); |
|
|
|
return 0; |
|
} |
|
|
|
static struct platform_driver snd_cht_mc_driver = { |
|
.driver = { |
|
.name = "cht-bsw-max98090", |
|
}, |
|
.probe = snd_cht_mc_probe, |
|
.remove = snd_cht_mc_remove, |
|
}; |
|
|
|
module_platform_driver(snd_cht_mc_driver) |
|
|
|
MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); |
|
MODULE_AUTHOR("Fang, Yang A <[email protected]>"); |
|
MODULE_LICENSE("GPL v2"); |
|
MODULE_ALIAS("platform:cht-bsw-max98090");
|
|
|