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439 lines
12 KiB
439 lines
12 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* mt2701-cs42448.c -- MT2701 CS42448 ALSA SoC machine driver |
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* |
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* Copyright (c) 2016 MediaTek Inc. |
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* Author: Ir Lian <[email protected]> |
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* Garlic Tseng <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <sound/soc.h> |
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#include <linux/delay.h> |
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#include <linux/gpio.h> |
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#include <linux/pinctrl/consumer.h> |
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#include <linux/of_gpio.h> |
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#include "mt2701-afe-common.h" |
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struct mt2701_cs42448_private { |
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int i2s1_in_mux; |
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int i2s1_in_mux_gpio_sel_1; |
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int i2s1_in_mux_gpio_sel_2; |
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}; |
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static const char * const i2sin_mux_switch_text[] = { |
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"ADC_SDOUT2", |
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"ADC_SDOUT3", |
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"I2S_IN_1", |
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"I2S_IN_2", |
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}; |
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static const struct soc_enum i2sin_mux_enum = |
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SOC_ENUM_SINGLE_EXT(4, i2sin_mux_switch_text); |
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static int mt2701_cs42448_i2sin1_mux_get(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
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struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card); |
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ucontrol->value.integer.value[0] = priv->i2s1_in_mux; |
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return 0; |
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} |
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static int mt2701_cs42448_i2sin1_mux_set(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
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struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card); |
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if (ucontrol->value.integer.value[0] == priv->i2s1_in_mux) |
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return 0; |
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switch (ucontrol->value.integer.value[0]) { |
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case 0: |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0); |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0); |
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break; |
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case 1: |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1); |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0); |
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break; |
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case 2: |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0); |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1); |
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break; |
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case 3: |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1); |
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gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1); |
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break; |
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default: |
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dev_warn(card->dev, "%s invalid setting\n", __func__); |
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} |
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priv->i2s1_in_mux = ucontrol->value.integer.value[0]; |
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return 0; |
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} |
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static const struct snd_soc_dapm_widget |
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mt2701_cs42448_asoc_card_dapm_widgets[] = { |
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SND_SOC_DAPM_LINE("Line Out Jack", NULL), |
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SND_SOC_DAPM_MIC("AMIC", NULL), |
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SND_SOC_DAPM_LINE("Tuner In", NULL), |
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SND_SOC_DAPM_LINE("Satellite Tuner In", NULL), |
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SND_SOC_DAPM_LINE("AUX In", NULL), |
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}; |
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static const struct snd_kcontrol_new mt2701_cs42448_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Line Out Jack"), |
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SOC_DAPM_PIN_SWITCH("AMIC"), |
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SOC_DAPM_PIN_SWITCH("Tuner In"), |
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SOC_DAPM_PIN_SWITCH("Satellite Tuner In"), |
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SOC_DAPM_PIN_SWITCH("AUX In"), |
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SOC_ENUM_EXT("I2SIN1_MUX_Switch", i2sin_mux_enum, |
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mt2701_cs42448_i2sin1_mux_get, |
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mt2701_cs42448_i2sin1_mux_set), |
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}; |
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static const unsigned int mt2701_cs42448_sampling_rates[] = {48000}; |
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static const struct snd_pcm_hw_constraint_list mt2701_cs42448_constraints_rates = { |
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.count = ARRAY_SIZE(mt2701_cs42448_sampling_rates), |
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.list = mt2701_cs42448_sampling_rates, |
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.mask = 0, |
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}; |
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static int mt2701_cs42448_fe_ops_startup(struct snd_pcm_substream *substream) |
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{ |
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int err; |
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err = snd_pcm_hw_constraint_list(substream->runtime, 0, |
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SNDRV_PCM_HW_PARAM_RATE, |
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&mt2701_cs42448_constraints_rates); |
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if (err < 0) { |
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dev_err(substream->pcm->card->dev, |
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"%s snd_pcm_hw_constraint_list failed: 0x%x\n", |
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__func__, err); |
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return err; |
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} |
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return 0; |
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} |
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static const struct snd_soc_ops mt2701_cs42448_48k_fe_ops = { |
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.startup = mt2701_cs42448_fe_ops_startup, |
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}; |
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static int mt2701_cs42448_be_ops_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 *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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unsigned int mclk_rate; |
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unsigned int rate = params_rate(params); |
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unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4; |
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unsigned int div_bck_over_lrck = 64; |
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mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck; |
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/* mt2701 mclk */ |
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snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT); |
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/* codec mclk */ |
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snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN); |
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return 0; |
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} |
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static const struct snd_soc_ops mt2701_cs42448_be_ops = { |
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.hw_params = mt2701_cs42448_be_ops_hw_params |
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}; |
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enum { |
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DAI_LINK_FE_MULTI_CH_OUT, |
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DAI_LINK_FE_PCM0_IN, |
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DAI_LINK_FE_PCM1_IN, |
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DAI_LINK_FE_BT_OUT, |
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DAI_LINK_FE_BT_IN, |
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DAI_LINK_BE_I2S0, |
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DAI_LINK_BE_I2S1, |
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DAI_LINK_BE_I2S2, |
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DAI_LINK_BE_I2S3, |
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DAI_LINK_BE_MRG_BT, |
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}; |
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SND_SOC_DAILINK_DEFS(fe_multi_ch_out, |
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DAILINK_COMP_ARRAY(COMP_CPU("PCM_multi")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(fe_pcm0_in, |
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DAILINK_COMP_ARRAY(COMP_CPU("PCM0")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(fe_pcm1_in, |
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DAILINK_COMP_ARRAY(COMP_CPU("PCM1")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(fe_bt_out, |
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DAILINK_COMP_ARRAY(COMP_CPU("PCM_BT_DL")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(fe_bt_in, |
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DAILINK_COMP_ARRAY(COMP_CPU("PCM_BT_UL")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(be_i2s0, |
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DAILINK_COMP_ARRAY(COMP_CPU("I2S0")), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42448")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(be_i2s1, |
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DAILINK_COMP_ARRAY(COMP_CPU("I2S1")), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42448")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(be_i2s2, |
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DAILINK_COMP_ARRAY(COMP_CPU("I2S2")), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42448")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(be_i2s3, |
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DAILINK_COMP_ARRAY(COMP_CPU("I2S3")), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42448")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(be_mrg_bt, |
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DAILINK_COMP_ARRAY(COMP_CPU("MRG BT")), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "bt-sco-pcm-wb")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link mt2701_cs42448_dai_links[] = { |
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/* FE */ |
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[DAI_LINK_FE_MULTI_CH_OUT] = { |
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.name = "mt2701-cs42448-multi-ch-out", |
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.stream_name = "mt2701-cs42448-multi-ch-out", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, |
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SND_SOC_DPCM_TRIGGER_POST}, |
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.ops = &mt2701_cs42448_48k_fe_ops, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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SND_SOC_DAILINK_REG(fe_multi_ch_out), |
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}, |
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[DAI_LINK_FE_PCM0_IN] = { |
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.name = "mt2701-cs42448-pcm0", |
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.stream_name = "mt2701-cs42448-pcm0-data-UL", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, |
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SND_SOC_DPCM_TRIGGER_POST}, |
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.ops = &mt2701_cs42448_48k_fe_ops, |
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.dynamic = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(fe_pcm0_in), |
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}, |
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[DAI_LINK_FE_PCM1_IN] = { |
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.name = "mt2701-cs42448-pcm1-data-UL", |
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.stream_name = "mt2701-cs42448-pcm1-data-UL", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, |
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SND_SOC_DPCM_TRIGGER_POST}, |
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.ops = &mt2701_cs42448_48k_fe_ops, |
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.dynamic = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(fe_pcm1_in), |
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}, |
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[DAI_LINK_FE_BT_OUT] = { |
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.name = "mt2701-cs42448-pcm-BT-out", |
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.stream_name = "mt2701-cs42448-pcm-BT", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, |
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SND_SOC_DPCM_TRIGGER_POST}, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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SND_SOC_DAILINK_REG(fe_bt_out), |
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}, |
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[DAI_LINK_FE_BT_IN] = { |
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.name = "mt2701-cs42448-pcm-BT-in", |
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.stream_name = "mt2701-cs42448-pcm-BT", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, |
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SND_SOC_DPCM_TRIGGER_POST}, |
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.dynamic = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(fe_bt_in), |
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}, |
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/* BE */ |
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[DAI_LINK_BE_I2S0] = { |
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.name = "mt2701-cs42448-I2S0", |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS |
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| SND_SOC_DAIFMT_GATED, |
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.ops = &mt2701_cs42448_be_ops, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(be_i2s0), |
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}, |
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[DAI_LINK_BE_I2S1] = { |
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.name = "mt2701-cs42448-I2S1", |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS |
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| SND_SOC_DAIFMT_GATED, |
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.ops = &mt2701_cs42448_be_ops, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(be_i2s1), |
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}, |
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[DAI_LINK_BE_I2S2] = { |
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.name = "mt2701-cs42448-I2S2", |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS |
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| SND_SOC_DAIFMT_GATED, |
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.ops = &mt2701_cs42448_be_ops, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(be_i2s2), |
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}, |
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[DAI_LINK_BE_I2S3] = { |
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.name = "mt2701-cs42448-I2S3", |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS |
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| SND_SOC_DAIFMT_GATED, |
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.ops = &mt2701_cs42448_be_ops, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(be_i2s3), |
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}, |
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[DAI_LINK_BE_MRG_BT] = { |
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.name = "mt2701-cs42448-MRG-BT", |
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.no_pcm = 1, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(be_mrg_bt), |
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}, |
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}; |
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static struct snd_soc_card mt2701_cs42448_soc_card = { |
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.name = "mt2701-cs42448", |
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.owner = THIS_MODULE, |
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.dai_link = mt2701_cs42448_dai_links, |
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.num_links = ARRAY_SIZE(mt2701_cs42448_dai_links), |
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.controls = mt2701_cs42448_controls, |
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.num_controls = ARRAY_SIZE(mt2701_cs42448_controls), |
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.dapm_widgets = mt2701_cs42448_asoc_card_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(mt2701_cs42448_asoc_card_dapm_widgets), |
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}; |
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static int mt2701_cs42448_machine_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card = &mt2701_cs42448_soc_card; |
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int ret; |
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int i; |
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struct device_node *platform_node, *codec_node, *codec_node_bt_mrg; |
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struct mt2701_cs42448_private *priv = |
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devm_kzalloc(&pdev->dev, sizeof(struct mt2701_cs42448_private), |
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GFP_KERNEL); |
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struct device *dev = &pdev->dev; |
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struct snd_soc_dai_link *dai_link; |
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if (!priv) |
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return -ENOMEM; |
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platform_node = of_parse_phandle(pdev->dev.of_node, |
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"mediatek,platform", 0); |
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if (!platform_node) { |
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dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); |
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return -EINVAL; |
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} |
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for_each_card_prelinks(card, i, dai_link) { |
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if (dai_link->platforms->name) |
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continue; |
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dai_link->platforms->of_node = platform_node; |
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} |
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card->dev = dev; |
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codec_node = of_parse_phandle(pdev->dev.of_node, |
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"mediatek,audio-codec", 0); |
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if (!codec_node) { |
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dev_err(&pdev->dev, |
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"Property 'audio-codec' missing or invalid\n"); |
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return -EINVAL; |
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} |
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for_each_card_prelinks(card, i, dai_link) { |
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if (dai_link->codecs->name) |
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continue; |
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dai_link->codecs->of_node = codec_node; |
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} |
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codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node, |
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"mediatek,audio-codec-bt-mrg", 0); |
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if (!codec_node_bt_mrg) { |
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dev_err(&pdev->dev, |
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"Property 'audio-codec-bt-mrg' missing or invalid\n"); |
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return -EINVAL; |
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} |
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mt2701_cs42448_dai_links[DAI_LINK_BE_MRG_BT].codecs->of_node |
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= codec_node_bt_mrg; |
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ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); |
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if (ret) { |
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dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret); |
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return ret; |
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} |
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priv->i2s1_in_mux_gpio_sel_1 = |
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of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio1", 0); |
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if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_1)) { |
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ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_1, |
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"i2s1_in_mux_gpio_sel_1"); |
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if (ret) |
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dev_warn(&pdev->dev, "%s devm_gpio_request fail %d\n", |
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__func__, ret); |
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gpio_direction_output(priv->i2s1_in_mux_gpio_sel_1, 0); |
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} |
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priv->i2s1_in_mux_gpio_sel_2 = |
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of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio2", 0); |
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if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_2)) { |
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ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_2, |
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"i2s1_in_mux_gpio_sel_2"); |
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if (ret) |
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dev_warn(&pdev->dev, "%s devm_gpio_request fail2 %d\n", |
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__func__, ret); |
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gpio_direction_output(priv->i2s1_in_mux_gpio_sel_2, 0); |
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} |
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snd_soc_card_set_drvdata(card, priv); |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) |
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dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", |
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__func__, ret); |
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return ret; |
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} |
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#ifdef CONFIG_OF |
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static const struct of_device_id mt2701_cs42448_machine_dt_match[] = { |
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{.compatible = "mediatek,mt2701-cs42448-machine",}, |
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{} |
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}; |
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#endif |
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static struct platform_driver mt2701_cs42448_machine = { |
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.driver = { |
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.name = "mt2701-cs42448", |
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#ifdef CONFIG_OF |
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.of_match_table = mt2701_cs42448_machine_dt_match, |
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#endif |
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}, |
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.probe = mt2701_cs42448_machine_probe, |
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}; |
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module_platform_driver(mt2701_cs42448_machine); |
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|
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/* Module information */ |
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MODULE_DESCRIPTION("MT2701 CS42448 ALSA SoC machine driver"); |
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MODULE_AUTHOR("Ir Lian <[email protected]>"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("mt2701 cs42448 soc card");
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