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0001 // SPDX-License-Identifier: GPL-2.0+
0002 //
0003 // Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec.
0004 //
0005 //Copyright 2016 Advanced Micro Devices, Inc.
0006 
0007 #include <sound/core.h>
0008 #include <sound/soc.h>
0009 #include <sound/pcm.h>
0010 #include <sound/pcm_params.h>
0011 #include <sound/soc-dapm.h>
0012 #include <sound/jack.h>
0013 #include <linux/clk.h>
0014 #include <linux/gpio.h>
0015 #include <linux/gpio/consumer.h>
0016 #include <linux/module.h>
0017 #include <linux/i2c.h>
0018 #include <linux/input.h>
0019 #include <linux/io.h>
0020 #include <linux/acpi.h>
0021 
0022 #include "raven/acp3x.h"
0023 #include "../codecs/rt5682.h"
0024 #include "../codecs/rt1015.h"
0025 
0026 #define PCO_PLAT_CLK 48000000
0027 #define RT5682_PLL_FREQ (48000 * 512)
0028 #define DUAL_CHANNEL        2
0029 
0030 static struct snd_soc_jack pco_jack;
0031 static struct clk *rt5682_dai_wclk;
0032 static struct clk *rt5682_dai_bclk;
0033 static struct gpio_desc *dmic_sel;
0034 void *soc_is_rltk_max(struct device *dev);
0035 
0036 enum {
0037     RT5682 = 0,
0038     MAX,
0039     EC,
0040 };
0041 
0042 static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd)
0043 {
0044     int ret;
0045     struct snd_soc_card *card = rtd->card;
0046     struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
0047     struct snd_soc_component *component = codec_dai->component;
0048 
0049     dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
0050 
0051     /* set rt5682 dai fmt */
0052     ret =  snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
0053             | SND_SOC_DAIFMT_NB_NF
0054             | SND_SOC_DAIFMT_CBP_CFP);
0055     if (ret < 0) {
0056         dev_err(rtd->card->dev,
0057                 "Failed to set rt5682 dai fmt: %d\n", ret);
0058         return ret;
0059     }
0060 
0061     /* set codec PLL */
0062     ret = snd_soc_dai_set_pll(codec_dai, RT5682_PLL2, RT5682_PLL2_S_MCLK,
0063                   PCO_PLAT_CLK, RT5682_PLL_FREQ);
0064     if (ret < 0) {
0065         dev_err(rtd->dev, "can't set rt5682 PLL: %d\n", ret);
0066         return ret;
0067     }
0068 
0069     /* Set codec sysclk */
0070     ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL2,
0071             RT5682_PLL_FREQ, SND_SOC_CLOCK_IN);
0072     if (ret < 0) {
0073         dev_err(rtd->dev,
0074             "Failed to set rt5682 SYSCLK: %d\n", ret);
0075         return ret;
0076     }
0077 
0078     /* Set tdm/i2s1 master bclk ratio */
0079     ret = snd_soc_dai_set_bclk_ratio(codec_dai, 64);
0080     if (ret < 0) {
0081         dev_err(rtd->dev,
0082             "Failed to set rt5682 tdm bclk ratio: %d\n", ret);
0083         return ret;
0084     }
0085 
0086     rt5682_dai_wclk = clk_get(component->dev, "rt5682-dai-wclk");
0087     rt5682_dai_bclk = clk_get(component->dev, "rt5682-dai-bclk");
0088 
0089     ret = snd_soc_card_jack_new(card, "Headset Jack",
0090                 SND_JACK_HEADSET | SND_JACK_LINEOUT |
0091                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
0092                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
0093                 &pco_jack);
0094     if (ret) {
0095         dev_err(card->dev, "HP jack creation failed %d\n", ret);
0096         return ret;
0097     }
0098 
0099     snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
0100     snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
0101     snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
0102     snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
0103 
0104     ret = snd_soc_component_set_jack(component, &pco_jack, NULL);
0105     if (ret) {
0106         dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
0107         return ret;
0108     }
0109 
0110     return ret;
0111 }
0112 
0113 static int rt5682_clk_enable(struct snd_pcm_substream *substream)
0114 {
0115     int ret = 0;
0116     struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
0117 
0118     /* RT5682 will support only 48K output with 48M mclk */
0119     clk_set_rate(rt5682_dai_wclk, 48000);
0120     clk_set_rate(rt5682_dai_bclk, 48000 * 64);
0121     ret = clk_prepare_enable(rt5682_dai_wclk);
0122     if (ret < 0) {
0123         dev_err(rtd->dev, "can't enable wclk %d\n", ret);
0124         return ret;
0125     }
0126 
0127     return ret;
0128 }
0129 
0130 static int acp3x_1015_hw_params(struct snd_pcm_substream *substream,
0131                     struct snd_pcm_hw_params *params)
0132 {
0133     struct snd_soc_pcm_runtime *rtd = substream->private_data;
0134     struct snd_soc_dai *codec_dai;
0135     int srate, i, ret;
0136 
0137     ret = 0;
0138     srate = params_rate(params);
0139 
0140     for_each_rtd_codec_dais(rtd, i, codec_dai) {
0141         if (strcmp(codec_dai->name, "rt1015-aif"))
0142             continue;
0143 
0144         ret = snd_soc_dai_set_pll(codec_dai, 0, RT1015_PLL_S_BCLK,
0145                         64 * srate, 256 * srate);
0146         if (ret < 0)
0147             return ret;
0148         ret = snd_soc_dai_set_sysclk(codec_dai, RT1015_SCLK_S_PLL,
0149                     256 * srate, SND_SOC_CLOCK_IN);
0150         if (ret < 0)
0151             return ret;
0152     }
0153     return ret;
0154 }
0155 
0156 static void rt5682_clk_disable(void)
0157 {
0158     clk_disable_unprepare(rt5682_dai_wclk);
0159 }
0160 
0161 static const unsigned int channels[] = {
0162     DUAL_CHANNEL,
0163 };
0164 
0165 static const unsigned int rates[] = {
0166     48000,
0167 };
0168 
0169 static const struct snd_pcm_hw_constraint_list constraints_rates = {
0170     .count = ARRAY_SIZE(rates),
0171     .list  = rates,
0172     .mask = 0,
0173 };
0174 
0175 static const struct snd_pcm_hw_constraint_list constraints_channels = {
0176     .count = ARRAY_SIZE(channels),
0177     .list = channels,
0178     .mask = 0,
0179 };
0180 
0181 static int acp3x_5682_startup(struct snd_pcm_substream *substream)
0182 {
0183     struct snd_pcm_runtime *runtime = substream->runtime;
0184     struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
0185     struct snd_soc_card *card = rtd->card;
0186     struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);
0187 
0188     machine->play_i2s_instance = I2S_SP_INSTANCE;
0189     machine->cap_i2s_instance = I2S_SP_INSTANCE;
0190 
0191     runtime->hw.channels_max = DUAL_CHANNEL;
0192     snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
0193                    &constraints_channels);
0194     snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
0195                    &constraints_rates);
0196     return rt5682_clk_enable(substream);
0197 }
0198 
0199 static int acp3x_max_startup(struct snd_pcm_substream *substream)
0200 {
0201     struct snd_pcm_runtime *runtime = substream->runtime;
0202     struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
0203     struct snd_soc_card *card = rtd->card;
0204     struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);
0205 
0206     machine->play_i2s_instance = I2S_BT_INSTANCE;
0207 
0208     runtime->hw.channels_max = DUAL_CHANNEL;
0209     snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
0210                    &constraints_channels);
0211     snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
0212                    &constraints_rates);
0213     return rt5682_clk_enable(substream);
0214 }
0215 
0216 static int acp3x_ec_dmic0_startup(struct snd_pcm_substream *substream)
0217 {
0218     struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
0219     struct snd_soc_card *card = rtd->card;
0220     struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
0221     struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);
0222 
0223     machine->cap_i2s_instance = I2S_BT_INSTANCE;
0224     snd_soc_dai_set_bclk_ratio(codec_dai, 64);
0225 
0226     return rt5682_clk_enable(substream);
0227 }
0228 
0229 static int dmic_switch;
0230 
0231 static int dmic_get(struct snd_kcontrol *kcontrol,
0232              struct snd_ctl_elem_value *ucontrol)
0233 {
0234     ucontrol->value.integer.value[0] = dmic_switch;
0235     return 0;
0236 }
0237 
0238 static int dmic_set(struct snd_kcontrol *kcontrol,
0239              struct snd_ctl_elem_value *ucontrol)
0240 {
0241     if (dmic_sel) {
0242         dmic_switch = ucontrol->value.integer.value[0];
0243         gpiod_set_value(dmic_sel, dmic_switch);
0244     }
0245     return 0;
0246 }
0247 
0248 static void rt5682_shutdown(struct snd_pcm_substream *substream)
0249 {
0250     rt5682_clk_disable();
0251 }
0252 
0253 static const struct snd_soc_ops acp3x_5682_ops = {
0254     .startup = acp3x_5682_startup,
0255     .shutdown = rt5682_shutdown,
0256 };
0257 
0258 static const struct snd_soc_ops acp3x_max_play_ops = {
0259     .startup = acp3x_max_startup,
0260     .shutdown = rt5682_shutdown,
0261     .hw_params = acp3x_1015_hw_params,
0262 };
0263 
0264 static const struct snd_soc_ops acp3x_ec_cap0_ops = {
0265     .startup = acp3x_ec_dmic0_startup,
0266     .shutdown = rt5682_shutdown,
0267 };
0268 
0269 SND_SOC_DAILINK_DEF(acp3x_i2s,
0270     DAILINK_COMP_ARRAY(COMP_CPU("acp3x_i2s_playcap.0")));
0271 SND_SOC_DAILINK_DEF(acp3x_bt,
0272     DAILINK_COMP_ARRAY(COMP_CPU("acp3x_i2s_playcap.2")));
0273 
0274 SND_SOC_DAILINK_DEF(rt5682,
0275     DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5682:00", "rt5682-aif1")));
0276 SND_SOC_DAILINK_DEF(max,
0277     DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
0278 SND_SOC_DAILINK_DEF(rt1015p,
0279     DAILINK_COMP_ARRAY(COMP_CODEC("RTL1015:00", "HiFi")));
0280 SND_SOC_DAILINK_DEF(rt1015,
0281     DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC1015:00", "rt1015-aif"),
0282             COMP_CODEC("i2c-10EC1015:01", "rt1015-aif")));
0283 SND_SOC_DAILINK_DEF(cros_ec,
0284     DAILINK_COMP_ARRAY(COMP_CODEC("GOOG0013:00", "EC Codec I2S RX")));
0285 
0286 SND_SOC_DAILINK_DEF(platform,
0287     DAILINK_COMP_ARRAY(COMP_PLATFORM("acp3x_rv_i2s_dma.0")));
0288 
0289 static struct snd_soc_codec_conf rt1015_conf[] = {
0290     {
0291         .dlc = COMP_CODEC_CONF("i2c-10EC1015:00"),
0292         .name_prefix = "Left",
0293     },
0294     {
0295         .dlc = COMP_CODEC_CONF("i2c-10EC1015:01"),
0296         .name_prefix = "Right",
0297     },
0298 };
0299 
0300 static struct snd_soc_dai_link acp3x_dai[] = {
0301     [RT5682] = {
0302         .name = "acp3x-5682-play",
0303         .stream_name = "Playback",
0304         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
0305                 | SND_SOC_DAIFMT_CBP_CFP,
0306         .init = acp3x_5682_init,
0307         .dpcm_playback = 1,
0308         .dpcm_capture = 1,
0309         .ops = &acp3x_5682_ops,
0310         SND_SOC_DAILINK_REG(acp3x_i2s, rt5682, platform),
0311     },
0312     [MAX] = {
0313         .name = "acp3x-max98357-play",
0314         .stream_name = "HiFi Playback",
0315         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
0316                 | SND_SOC_DAIFMT_CBC_CFC,
0317         .dpcm_playback = 1,
0318         .ops = &acp3x_max_play_ops,
0319         .cpus = acp3x_bt,
0320         .num_cpus = ARRAY_SIZE(acp3x_bt),
0321         .platforms = platform,
0322         .num_platforms = ARRAY_SIZE(platform),
0323     },
0324     [EC] = {
0325         .name = "acp3x-ec-dmic0-capture",
0326         .stream_name = "Capture DMIC0",
0327         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
0328                 | SND_SOC_DAIFMT_CBC_CFC,
0329         .dpcm_capture = 1,
0330         .ops = &acp3x_ec_cap0_ops,
0331         SND_SOC_DAILINK_REG(acp3x_bt, cros_ec, platform),
0332     },
0333 };
0334 
0335 static const char * const dmic_mux_text[] = {
0336     "Front Mic",
0337     "Rear Mic",
0338 };
0339 
0340 static SOC_ENUM_SINGLE_DECL(
0341         acp3x_dmic_enum, SND_SOC_NOPM, 0, dmic_mux_text);
0342 
0343 static const struct snd_kcontrol_new acp3x_dmic_mux_control =
0344     SOC_DAPM_ENUM_EXT("DMIC Select Mux", acp3x_dmic_enum,
0345               dmic_get, dmic_set);
0346 
0347 static const struct snd_soc_dapm_widget acp3x_5682_widgets[] = {
0348     SND_SOC_DAPM_HP("Headphone Jack", NULL),
0349     SND_SOC_DAPM_SPK("Spk", NULL),
0350     SND_SOC_DAPM_MIC("Headset Mic", NULL),
0351     SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0,
0352              &acp3x_dmic_mux_control),
0353 };
0354 
0355 static const struct snd_soc_dapm_route acp3x_5682_audio_route[] = {
0356     {"Headphone Jack", NULL, "HPOL"},
0357     {"Headphone Jack", NULL, "HPOR"},
0358     {"IN1P", NULL, "Headset Mic"},
0359     {"Spk", NULL, "Speaker"},
0360     {"Dmic Mux", "Front Mic", "DMIC"},
0361     {"Dmic Mux", "Rear Mic", "DMIC"},
0362 };
0363 
0364 static const struct snd_kcontrol_new acp3x_5682_mc_controls[] = {
0365     SOC_DAPM_PIN_SWITCH("Headphone Jack"),
0366     SOC_DAPM_PIN_SWITCH("Spk"),
0367     SOC_DAPM_PIN_SWITCH("Headset Mic"),
0368 };
0369 
0370 static struct snd_soc_card acp3x_5682 = {
0371     .name = "acp3xalc5682m98357",
0372     .owner = THIS_MODULE,
0373     .dai_link = acp3x_dai,
0374     .num_links = ARRAY_SIZE(acp3x_dai),
0375     .dapm_widgets = acp3x_5682_widgets,
0376     .num_dapm_widgets = ARRAY_SIZE(acp3x_5682_widgets),
0377     .dapm_routes = acp3x_5682_audio_route,
0378     .num_dapm_routes = ARRAY_SIZE(acp3x_5682_audio_route),
0379     .controls = acp3x_5682_mc_controls,
0380     .num_controls = ARRAY_SIZE(acp3x_5682_mc_controls),
0381 };
0382 
0383 static const struct snd_soc_dapm_widget acp3x_1015_widgets[] = {
0384     SND_SOC_DAPM_HP("Headphone Jack", NULL),
0385     SND_SOC_DAPM_MIC("Headset Mic", NULL),
0386     SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0,
0387              &acp3x_dmic_mux_control),
0388     SND_SOC_DAPM_SPK("Left Spk", NULL),
0389     SND_SOC_DAPM_SPK("Right Spk", NULL),
0390 };
0391 
0392 static const struct snd_soc_dapm_route acp3x_1015_route[] = {
0393     {"Headphone Jack", NULL, "HPOL"},
0394     {"Headphone Jack", NULL, "HPOR"},
0395     {"IN1P", NULL, "Headset Mic"},
0396     {"Dmic Mux", "Front Mic", "DMIC"},
0397     {"Dmic Mux", "Rear Mic", "DMIC"},
0398     {"Left Spk", NULL, "Left SPO"},
0399     {"Right Spk", NULL, "Right SPO"},
0400 };
0401 
0402 static const struct snd_kcontrol_new acp3x_mc_1015_controls[] = {
0403     SOC_DAPM_PIN_SWITCH("Headphone Jack"),
0404     SOC_DAPM_PIN_SWITCH("Headset Mic"),
0405     SOC_DAPM_PIN_SWITCH("Left Spk"),
0406     SOC_DAPM_PIN_SWITCH("Right Spk"),
0407 };
0408 
0409 static struct snd_soc_card acp3x_1015 = {
0410     .name = "acp3xalc56821015",
0411     .owner = THIS_MODULE,
0412     .dai_link = acp3x_dai,
0413     .num_links = ARRAY_SIZE(acp3x_dai),
0414     .dapm_widgets = acp3x_1015_widgets,
0415     .num_dapm_widgets = ARRAY_SIZE(acp3x_1015_widgets),
0416     .dapm_routes = acp3x_1015_route,
0417     .num_dapm_routes = ARRAY_SIZE(acp3x_1015_route),
0418     .codec_conf = rt1015_conf,
0419     .num_configs = ARRAY_SIZE(rt1015_conf),
0420     .controls = acp3x_mc_1015_controls,
0421     .num_controls = ARRAY_SIZE(acp3x_mc_1015_controls),
0422 };
0423 
0424 static const struct snd_soc_dapm_widget acp3x_1015p_widgets[] = {
0425     SND_SOC_DAPM_HP("Headphone Jack", NULL),
0426     SND_SOC_DAPM_MIC("Headset Mic", NULL),
0427     SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0,
0428              &acp3x_dmic_mux_control),
0429     SND_SOC_DAPM_SPK("Speakers", NULL),
0430 };
0431 
0432 static const struct snd_soc_dapm_route acp3x_1015p_route[] = {
0433     {"Headphone Jack", NULL, "HPOL"},
0434     {"Headphone Jack", NULL, "HPOR"},
0435     {"IN1P", NULL, "Headset Mic"},
0436     {"Dmic Mux", "Front Mic", "DMIC"},
0437     {"Dmic Mux", "Rear Mic", "DMIC"},
0438     /* speaker */
0439     { "Speakers", NULL, "Speaker" },
0440 };
0441 
0442 static const struct snd_kcontrol_new acp3x_mc_1015p_controls[] = {
0443     SOC_DAPM_PIN_SWITCH("Speakers"),
0444     SOC_DAPM_PIN_SWITCH("Headphone Jack"),
0445     SOC_DAPM_PIN_SWITCH("Headset Mic"),
0446 };
0447 
0448 static struct snd_soc_card acp3x_1015p = {
0449     .name = "acp3xalc56821015p",
0450     .owner = THIS_MODULE,
0451     .dai_link = acp3x_dai,
0452     .num_links = ARRAY_SIZE(acp3x_dai),
0453     .dapm_widgets = acp3x_1015p_widgets,
0454     .num_dapm_widgets = ARRAY_SIZE(acp3x_1015p_widgets),
0455     .dapm_routes = acp3x_1015p_route,
0456     .num_dapm_routes = ARRAY_SIZE(acp3x_1015p_route),
0457     .controls = acp3x_mc_1015p_controls,
0458     .num_controls = ARRAY_SIZE(acp3x_mc_1015p_controls),
0459 };
0460 
0461 void *soc_is_rltk_max(struct device *dev)
0462 {
0463     const struct acpi_device_id *match;
0464 
0465     match = acpi_match_device(dev->driver->acpi_match_table, dev);
0466     if (!match)
0467         return NULL;
0468     return (void *)match->driver_data;
0469 }
0470 
0471 static void card_spk_dai_link_present(struct snd_soc_dai_link *links,
0472                         const char *card_name)
0473 {
0474     if (!strcmp(card_name, "acp3xalc56821015")) {
0475         links[1].codecs = rt1015;
0476         links[1].num_codecs = ARRAY_SIZE(rt1015);
0477     } else if (!strcmp(card_name, "acp3xalc56821015p")) {
0478         links[1].codecs = rt1015p;
0479         links[1].num_codecs = ARRAY_SIZE(rt1015p);
0480     } else {
0481         links[1].codecs = max;
0482         links[1].num_codecs = ARRAY_SIZE(max);
0483     }
0484 }
0485 
0486 static int acp3x_probe(struct platform_device *pdev)
0487 {
0488     int ret;
0489     struct snd_soc_card *card;
0490     struct acp3x_platform_info *machine;
0491     struct device *dev = &pdev->dev;
0492 
0493     card = (struct snd_soc_card *)soc_is_rltk_max(dev);
0494     if (!card)
0495         return -ENODEV;
0496 
0497     machine = devm_kzalloc(&pdev->dev, sizeof(*machine), GFP_KERNEL);
0498     if (!machine)
0499         return -ENOMEM;
0500 
0501     card_spk_dai_link_present(card->dai_link, card->name);
0502     card->dev = &pdev->dev;
0503     platform_set_drvdata(pdev, card);
0504     snd_soc_card_set_drvdata(card, machine);
0505 
0506     dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW);
0507     if (IS_ERR(dmic_sel)) {
0508         dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n",
0509             PTR_ERR(dmic_sel));
0510         return PTR_ERR(dmic_sel);
0511     }
0512 
0513     ret = devm_snd_soc_register_card(&pdev->dev, card);
0514     if (ret) {
0515         return dev_err_probe(&pdev->dev, ret,
0516                 "devm_snd_soc_register_card(%s) failed\n",
0517                 card->name);
0518     }
0519     return 0;
0520 }
0521 
0522 static const struct acpi_device_id acp3x_audio_acpi_match[] = {
0523     { "AMDI5682", (unsigned long)&acp3x_5682},
0524     { "AMDI1015", (unsigned long)&acp3x_1015},
0525     { "10021015", (unsigned long)&acp3x_1015p},
0526     {},
0527 };
0528 MODULE_DEVICE_TABLE(acpi, acp3x_audio_acpi_match);
0529 
0530 static struct platform_driver acp3x_audio = {
0531     .driver = {
0532         .name = "acp3x-alc5682-max98357",
0533         .acpi_match_table = ACPI_PTR(acp3x_audio_acpi_match),
0534         .pm = &snd_soc_pm_ops,
0535     },
0536     .probe = acp3x_probe,
0537 };
0538 
0539 module_platform_driver(acp3x_audio);
0540 
0541 MODULE_AUTHOR("akshu.agrawal@amd.com");
0542 MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com");
0543 MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
0544 MODULE_DESCRIPTION("ALC5682 ALC1015, ALC1015P & MAX98357 audio support");
0545 MODULE_LICENSE("GPL v2");
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