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-rw-r--r--sound/soc/codecs/ad193x.c560
1 files changed, 560 insertions, 0 deletions
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
new file mode 100644
index 000000000..1d3c4d94b
--- /dev/null
+++ b/sound/soc/codecs/ad193x.c
@@ -0,0 +1,560 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AD193X Audio Codec driver supporting AD1936/7/8/9
+ *
+ * Copyright 2010 Analog Devices Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "ad193x.h"
+
+/* codec private data */
+struct ad193x_priv {
+ struct regmap *regmap;
+ enum ad193x_type type;
+ int sysclk;
+};
+
+/*
+ * AD193X volume/mute/de-emphasis etc. controls
+ */
+static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
+
+static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
+ ad193x_deemp);
+
+static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
+
+static const unsigned int ad193x_sb[] = {32};
+
+static struct snd_pcm_hw_constraint_list constr = {
+ .list = ad193x_sb,
+ .count = ARRAY_SIZE(ad193x_sb),
+};
+
+static const struct snd_kcontrol_new ad193x_snd_controls[] = {
+ /* DAC volume control */
+ SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
+ AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
+ SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
+ AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
+ SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
+ AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
+ SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
+ AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),
+
+ /* DAC switch control */
+ SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
+ AD193X_DACR1_MUTE, 1, 1),
+ SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
+ AD193X_DACR2_MUTE, 1, 1),
+ SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
+ AD193X_DACR3_MUTE, 1, 1),
+ SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
+ AD193X_DACR4_MUTE, 1, 1),
+
+ /* DAC de-emphasis */
+ SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
+};
+
+static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = {
+ /* ADC switch control */
+ SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
+ AD193X_ADCR1_MUTE, 1, 1),
+ SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
+ AD193X_ADCR2_MUTE, 1, 1),
+
+ /* ADC high-pass filter */
+ SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
+ AD193X_ADC_HIGHPASS_FILTER, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
+ SND_SOC_DAPM_VMID("VMID"),
+ SND_SOC_DAPM_OUTPUT("DAC1OUT"),
+ SND_SOC_DAPM_OUTPUT("DAC2OUT"),
+ SND_SOC_DAPM_OUTPUT("DAC3OUT"),
+ SND_SOC_DAPM_OUTPUT("DAC4OUT"),
+};
+
+static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {
+ SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
+ SND_SOC_DAPM_INPUT("ADC1IN"),
+ SND_SOC_DAPM_INPUT("ADC2IN"),
+};
+
+static int ad193x_check_pll(struct snd_soc_dapm_widget *source,
+ struct snd_soc_dapm_widget *sink)
+{
+ struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
+
+ return !!ad193x->sysclk;
+}
+
+static const struct snd_soc_dapm_route audio_paths[] = {
+ { "DAC", NULL, "SYSCLK" },
+ { "DAC Output", NULL, "DAC" },
+ { "DAC Output", NULL, "VMID" },
+ { "DAC1OUT", NULL, "DAC Output" },
+ { "DAC2OUT", NULL, "DAC Output" },
+ { "DAC3OUT", NULL, "DAC Output" },
+ { "DAC4OUT", NULL, "DAC Output" },
+ { "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll },
+};
+
+static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {
+ { "ADC", NULL, "SYSCLK" },
+ { "ADC", NULL, "ADC_PWR" },
+ { "ADC", NULL, "ADC1IN" },
+ { "ADC", NULL, "ADC2IN" },
+};
+
+static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x)
+{
+ switch (ad193x->type) {
+ case AD1933:
+ case AD1934:
+ return false;
+ default:
+ break;
+ }
+
+ return true;
+}
+
+/*
+ * DAI ops entries
+ */
+
+static int ad193x_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
+
+ if (mute)
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
+ AD193X_DAC_MASTER_MUTE,
+ AD193X_DAC_MASTER_MUTE);
+ else
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
+ AD193X_DAC_MASTER_MUTE, 0);
+
+ return 0;
+}
+
+static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int width)
+{
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
+ unsigned int channels;
+
+ switch (slots) {
+ case 2:
+ channels = AD193X_2_CHANNELS;
+ break;
+ case 4:
+ channels = AD193X_4_CHANNELS;
+ break;
+ case 8:
+ channels = AD193X_8_CHANNELS;
+ break;
+ case 16:
+ channels = AD193X_16_CHANNELS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
+ AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
+ if (ad193x_has_adc(ad193x))
+ regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
+ AD193X_ADC_CHAN_MASK,
+ channels << AD193X_ADC_CHAN_SHFT);
+
+ return 0;
+}
+
+static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component);
+ unsigned int adc_serfmt = 0;
+ unsigned int dac_serfmt = 0;
+ unsigned int adc_fmt = 0;
+ unsigned int dac_fmt = 0;
+
+ /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
+ * with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode
+ * (SND_SOC_DAIFMT_I2S)
+ */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ adc_serfmt |= AD193X_ADC_SERFMT_TDM;
+ dac_serfmt |= AD193X_DAC_SERFMT_STEREO;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ adc_serfmt |= AD193X_ADC_SERFMT_AUX;
+ dac_serfmt |= AD193X_DAC_SERFMT_TDM;
+ break;
+ default:
+ if (ad193x_has_adc(ad193x))
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
+ break;
+ case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
+ adc_fmt |= AD193X_ADC_LEFT_HIGH;
+ dac_fmt |= AD193X_DAC_LEFT_HIGH;
+ break;
+ case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
+ adc_fmt |= AD193X_ADC_BCLK_INV;
+ dac_fmt |= AD193X_DAC_BCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
+ adc_fmt |= AD193X_ADC_LEFT_HIGH;
+ adc_fmt |= AD193X_ADC_BCLK_INV;
+ dac_fmt |= AD193X_DAC_LEFT_HIGH;
+ dac_fmt |= AD193X_DAC_BCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* For DSP_*, LRCLK's polarity must be inverted */
+ if (fmt & SND_SOC_DAIFMT_DSP_A)
+ dac_fmt ^= AD193X_DAC_LEFT_HIGH;
+
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBP_CFP:
+ adc_fmt |= AD193X_ADC_LCR_MASTER;
+ adc_fmt |= AD193X_ADC_BCLK_MASTER;
+ dac_fmt |= AD193X_DAC_LCR_MASTER;
+ dac_fmt |= AD193X_DAC_BCLK_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBC_CFP:
+ adc_fmt |= AD193X_ADC_LCR_MASTER;
+ dac_fmt |= AD193X_DAC_LCR_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBP_CFC:
+ adc_fmt |= AD193X_ADC_BCLK_MASTER;
+ dac_fmt |= AD193X_DAC_BCLK_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBC_CFC:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (ad193x_has_adc(ad193x)) {
+ regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
+ AD193X_ADC_SERFMT_MASK, adc_serfmt);
+ regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
+ AD193X_ADC_FMT_MASK, adc_fmt);
+ }
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0,
+ AD193X_DAC_SERFMT_MASK, dac_serfmt);
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
+ AD193X_DAC_FMT_MASK, dac_fmt);
+
+ return 0;
+}
+
+static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
+
+ if (clk_id == AD193X_SYSCLK_MCLK) {
+ /* MCLK must be 512 x fs */
+ if (dir == SND_SOC_CLOCK_OUT || freq != 24576000)
+ return -EINVAL;
+
+ regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL1,
+ AD193X_PLL_SRC_MASK,
+ AD193X_PLL_DAC_SRC_MCLK |
+ AD193X_PLL_CLK_SRC_MCLK);
+
+ snd_soc_dapm_sync(dapm);
+ return 0;
+ }
+ switch (freq) {
+ case 12288000:
+ case 18432000:
+ case 24576000:
+ case 36864000:
+ ad193x->sysclk = freq;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int ad193x_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ int word_len = 0, master_rate = 0;
+ struct snd_soc_component *component = dai->component;
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
+ bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+ u8 dacc0;
+
+ dev_dbg(dai->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
+ __func__, params_rate(params), params_format(params),
+ params_width(params), params_channels(params));
+
+
+ /* bit size */
+ switch (params_width(params)) {
+ case 16:
+ word_len = 3;
+ break;
+ case 20:
+ word_len = 1;
+ break;
+ case 24:
+ case 32:
+ word_len = 0;
+ break;
+ }
+
+ switch (ad193x->sysclk) {
+ case 12288000:
+ master_rate = AD193X_PLL_INPUT_256;
+ break;
+ case 18432000:
+ master_rate = AD193X_PLL_INPUT_384;
+ break;
+ case 24576000:
+ master_rate = AD193X_PLL_INPUT_512;
+ break;
+ case 36864000:
+ master_rate = AD193X_PLL_INPUT_768;
+ break;
+ }
+
+ if (is_playback) {
+ switch (params_rate(params)) {
+ case 48000:
+ dacc0 = AD193X_DAC_SR_48;
+ break;
+ case 96000:
+ dacc0 = AD193X_DAC_SR_96;
+ break;
+ case 192000:
+ dacc0 = AD193X_DAC_SR_192;
+ break;
+ default:
+ dev_err(dai->dev, "invalid sampling rate: %d\n", params_rate(params));
+ return -EINVAL;
+ }
+
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0, AD193X_DAC_SR_MASK, dacc0);
+ }
+
+ regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
+ AD193X_PLL_INPUT_MASK, master_rate);
+
+ regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
+ AD193X_DAC_WORD_LEN_MASK,
+ word_len << AD193X_DAC_WORD_LEN_SHFT);
+
+ if (ad193x_has_adc(ad193x))
+ regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
+ AD193X_ADC_WORD_LEN_MASK, word_len);
+
+ return 0;
+}
+
+static int ad193x_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ return snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+ &constr);
+}
+
+static const struct snd_soc_dai_ops ad193x_dai_ops = {
+ .startup = ad193x_startup,
+ .hw_params = ad193x_hw_params,
+ .mute_stream = ad193x_mute,
+ .set_tdm_slot = ad193x_set_tdm_slot,
+ .set_sysclk = ad193x_set_dai_sysclk,
+ .set_fmt = ad193x_set_dai_fmt,
+ .no_capture_mute = 1,
+};
+
+/* codec DAI instance */
+static struct snd_soc_dai_driver ad193x_dai = {
+ .name = "ad193x-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 4,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+ .ops = &ad193x_dai_ops,
+};
+
+/* codec DAI instance for DAC only */
+static struct snd_soc_dai_driver ad193x_no_adc_dai = {
+ .name = "ad193x-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+ .ops = &ad193x_dai_ops,
+};
+
+/* codec register values to set after reset */
+static void ad193x_reg_default_init(struct ad193x_priv *ad193x)
+{
+ static const struct reg_sequence reg_init[] = {
+ { 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */
+ { 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */
+ { 2, 0x40 }, /* DAC_CTRL0: TDM mode */
+ { 3, 0x00 }, /* DAC_CTRL1: reset */
+ { 4, 0x1A }, /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */
+ { 5, 0x00 }, /* DAC_CHNL_MUTE: unmute DAC channels */
+ { 6, 0x00 }, /* DAC_L1_VOL: no attenuation */
+ { 7, 0x00 }, /* DAC_R1_VOL: no attenuation */
+ { 8, 0x00 }, /* DAC_L2_VOL: no attenuation */
+ { 9, 0x00 }, /* DAC_R2_VOL: no attenuation */
+ { 10, 0x00 }, /* DAC_L3_VOL: no attenuation */
+ { 11, 0x00 }, /* DAC_R3_VOL: no attenuation */
+ { 12, 0x00 }, /* DAC_L4_VOL: no attenuation */
+ { 13, 0x00 }, /* DAC_R4_VOL: no attenuation */
+ };
+ static const struct reg_sequence reg_adc_init[] = {
+ { 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */
+ { 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */
+ { 16, 0x00 }, /* ADC_CTRL2: reset */
+ };
+
+ regmap_multi_reg_write(ad193x->regmap, reg_init, ARRAY_SIZE(reg_init));
+
+ if (ad193x_has_adc(ad193x)) {
+ regmap_multi_reg_write(ad193x->regmap, reg_adc_init,
+ ARRAY_SIZE(reg_adc_init));
+ }
+}
+
+static int ad193x_component_probe(struct snd_soc_component *component)
+{
+ struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ int num, ret;
+
+ /* default setting for ad193x */
+ ad193x_reg_default_init(ad193x);
+
+ /* adc only */
+ if (ad193x_has_adc(ad193x)) {
+ /* add adc controls */
+ num = ARRAY_SIZE(ad193x_adc_snd_controls);
+ ret = snd_soc_add_component_controls(component,
+ ad193x_adc_snd_controls,
+ num);
+ if (ret)
+ return ret;
+
+ /* add adc widgets */
+ num = ARRAY_SIZE(ad193x_adc_widgets);
+ ret = snd_soc_dapm_new_controls(dapm,
+ ad193x_adc_widgets,
+ num);
+ if (ret)
+ return ret;
+
+ /* add adc routes */
+ num = ARRAY_SIZE(ad193x_adc_audio_paths);
+ ret = snd_soc_dapm_add_routes(dapm,
+ ad193x_adc_audio_paths,
+ num);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver soc_component_dev_ad193x = {
+ .probe = ad193x_component_probe,
+ .controls = ad193x_snd_controls,
+ .num_controls = ARRAY_SIZE(ad193x_snd_controls),
+ .dapm_widgets = ad193x_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
+ .dapm_routes = audio_paths,
+ .num_dapm_routes = ARRAY_SIZE(audio_paths),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+const struct regmap_config ad193x_regmap_config = {
+ .max_register = AD193X_NUM_REGS - 1,
+};
+EXPORT_SYMBOL_GPL(ad193x_regmap_config);
+
+int ad193x_probe(struct device *dev, struct regmap *regmap,
+ enum ad193x_type type)
+{
+ struct ad193x_priv *ad193x;
+
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);
+ if (ad193x == NULL)
+ return -ENOMEM;
+
+ ad193x->regmap = regmap;
+ ad193x->type = type;
+
+ dev_set_drvdata(dev, ad193x);
+
+ if (ad193x_has_adc(ad193x))
+ return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
+ &ad193x_dai, 1);
+ return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
+ &ad193x_no_adc_dai, 1);
+}
+EXPORT_SYMBOL_GPL(ad193x_probe);
+
+MODULE_DESCRIPTION("ASoC ad193x driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 17:10:09 +0000