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391 lines
10 KiB
391 lines
10 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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// |
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// Copyright (c) 2020, The Linux Foundation. All rights reserved. |
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// |
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// sc7180.c -- ALSA SoC Machine driver for SC7180 |
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#include <dt-bindings/sound/sc7180-lpass.h> |
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#include <linux/gpio.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/module.h> |
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#include <linux/of_device.h> |
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#include <linux/platform_device.h> |
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#include <sound/core.h> |
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#include <sound/jack.h> |
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#include <sound/pcm.h> |
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#include <sound/soc.h> |
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#include <uapi/linux/input-event-codes.h> |
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#include "../codecs/rt5682.h" |
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#include "common.h" |
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#include "lpass.h" |
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#define DEFAULT_MCLK_RATE 19200000 |
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#define RT5682_PLL1_FREQ (48000 * 512) |
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#define DRIVER_NAME "SC7180" |
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struct sc7180_snd_data { |
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struct snd_soc_card card; |
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u32 pri_mi2s_clk_count; |
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struct snd_soc_jack hs_jack; |
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struct snd_soc_jack hdmi_jack; |
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struct gpio_desc *dmic_sel; |
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int dmic_switch; |
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}; |
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static void sc7180_jack_free(struct snd_jack *jack) |
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{ |
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struct snd_soc_component *component = jack->private_data; |
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snd_soc_component_set_jack(component, NULL, NULL); |
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} |
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static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_card *card = rtd->card; |
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struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_component *component = codec_dai->component; |
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struct snd_jack *jack; |
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int rval; |
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rval = snd_soc_card_jack_new( |
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card, "Headset Jack", |
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SND_JACK_HEADSET | |
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SND_JACK_HEADPHONE | |
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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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&pdata->hs_jack, NULL, 0); |
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if (rval < 0) { |
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dev_err(card->dev, "Unable to add Headset Jack\n"); |
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return rval; |
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} |
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jack = pdata->hs_jack.jack; |
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snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); |
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snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); |
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snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); |
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snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); |
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jack->private_data = component; |
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jack->private_free = sc7180_jack_free; |
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return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL); |
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} |
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static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_card *card = rtd->card; |
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struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_component *component = codec_dai->component; |
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struct snd_jack *jack; |
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int rval; |
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rval = snd_soc_card_jack_new( |
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card, "HDMI Jack", |
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SND_JACK_LINEOUT, |
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&pdata->hdmi_jack, NULL, 0); |
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if (rval < 0) { |
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dev_err(card->dev, "Unable to add HDMI Jack\n"); |
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return rval; |
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} |
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jack = pdata->hdmi_jack.jack; |
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jack->private_data = component; |
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jack->private_free = sc7180_jack_free; |
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return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL); |
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} |
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static int sc7180_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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switch (cpu_dai->id) { |
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case MI2S_PRIMARY: |
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return sc7180_headset_init(rtd); |
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case MI2S_SECONDARY: |
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return 0; |
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case LPASS_DP_RX: |
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return sc7180_hdmi_init(rtd); |
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default: |
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
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cpu_dai->id); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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static int sc7180_snd_startup(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = substream->private_data; |
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struct snd_soc_card *card = rtd->card; |
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card); |
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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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int ret; |
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switch (cpu_dai->id) { |
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case MI2S_PRIMARY: |
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if (++data->pri_mi2s_clk_count == 1) { |
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snd_soc_dai_set_sysclk(cpu_dai, |
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LPASS_MCLK0, |
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DEFAULT_MCLK_RATE, |
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SNDRV_PCM_STREAM_PLAYBACK); |
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} |
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snd_soc_dai_set_fmt(codec_dai, |
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SND_SOC_DAIFMT_CBS_CFS | |
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SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_I2S); |
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/* Configure PLL1 for codec */ |
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ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK, |
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DEFAULT_MCLK_RATE, RT5682_PLL1_FREQ); |
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if (ret) { |
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dev_err(rtd->dev, "can't set codec pll: %d\n", ret); |
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return ret; |
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} |
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/* Configure sysclk for codec */ |
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ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1, |
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RT5682_PLL1_FREQ, |
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SND_SOC_CLOCK_IN); |
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if (ret) |
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dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", |
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ret); |
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break; |
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case MI2S_SECONDARY: |
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break; |
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case LPASS_DP_RX: |
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break; |
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default: |
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
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cpu_dai->id); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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static int dmic_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_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card); |
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ucontrol->value.integer.value[0] = data->dmic_switch; |
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return 0; |
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} |
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static int dmic_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_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card); |
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data->dmic_switch = ucontrol->value.integer.value[0]; |
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gpiod_set_value(data->dmic_sel, data->dmic_switch); |
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return 0; |
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} |
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static void sc7180_snd_shutdown(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = substream->private_data; |
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struct snd_soc_card *card = rtd->card; |
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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switch (cpu_dai->id) { |
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case MI2S_PRIMARY: |
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if (--data->pri_mi2s_clk_count == 0) { |
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snd_soc_dai_set_sysclk(cpu_dai, |
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LPASS_MCLK0, |
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0, |
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SNDRV_PCM_STREAM_PLAYBACK); |
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} |
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break; |
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case MI2S_SECONDARY: |
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break; |
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case LPASS_DP_RX: |
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break; |
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default: |
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
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cpu_dai->id); |
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break; |
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} |
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} |
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static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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switch (cpu_dai->id) { |
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case MI2S_PRIMARY: |
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return 0; |
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case MI2S_SECONDARY: |
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return 0; |
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case LPASS_DP_RX: |
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return sc7180_hdmi_init(rtd); |
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default: |
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
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cpu_dai->id); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = substream->private_data; |
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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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struct snd_pcm_runtime *runtime = substream->runtime; |
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switch (cpu_dai->id) { |
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case MI2S_PRIMARY: |
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snd_soc_dai_set_fmt(codec_dai, |
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SND_SOC_DAIFMT_CBS_CFS | |
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SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_I2S); |
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runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE; |
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snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32); |
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break; |
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case MI2S_SECONDARY: |
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break; |
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case LPASS_DP_RX: |
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break; |
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default: |
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
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cpu_dai->id); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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static const struct snd_soc_ops sc7180_ops = { |
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.startup = sc7180_snd_startup, |
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.shutdown = sc7180_snd_shutdown, |
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}; |
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static const struct snd_soc_ops sc7180_adau7002_ops = { |
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.startup = sc7180_adau7002_snd_startup, |
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}; |
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static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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}; |
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static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = { |
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SND_SOC_DAPM_MIC("DMIC", NULL), |
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}; |
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static const char * const dmic_mux_text[] = { |
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"Front Mic", |
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"Rear Mic", |
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}; |
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static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum, |
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SND_SOC_NOPM, 0, dmic_mux_text); |
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static const struct snd_kcontrol_new sc7180_dmic_mux_control = |
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SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum, |
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dmic_get, dmic_set); |
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static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_MIC("DMIC", NULL), |
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SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control), |
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}; |
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static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = { |
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{"Dmic Mux", "Front Mic", "DMIC"}, |
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{"Dmic Mux", "Rear Mic", "DMIC"}, |
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}; |
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static int sc7180_snd_platform_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card; |
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struct sc7180_snd_data *data; |
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struct device *dev = &pdev->dev; |
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struct snd_soc_dai_link *link; |
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int ret; |
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int i; |
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bool no_headphone = false; |
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/* Allocate the private data */ |
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data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); |
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if (!data) |
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return -ENOMEM; |
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card = &data->card; |
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snd_soc_card_set_drvdata(card, data); |
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card->owner = THIS_MODULE; |
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card->driver_name = DRIVER_NAME; |
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card->dev = dev; |
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card->dapm_widgets = sc7180_snd_widgets; |
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card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets); |
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if (of_property_read_bool(dev->of_node, "dmic-gpios")) { |
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card->dapm_widgets = sc7180_snd_dual_mic_widgets, |
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card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets), |
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card->dapm_routes = sc7180_snd_dual_mic_audio_route, |
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card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route), |
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data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW); |
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if (IS_ERR(data->dmic_sel)) { |
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dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel)); |
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return PTR_ERR(data->dmic_sel); |
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} |
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} |
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if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) { |
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no_headphone = true; |
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card->dapm_widgets = sc7180_adau7002_snd_widgets; |
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card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets); |
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} |
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ret = qcom_snd_parse_of(card); |
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if (ret) |
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return ret; |
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for_each_card_prelinks(card, i, link) { |
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if (no_headphone) { |
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link->ops = &sc7180_adau7002_ops; |
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link->init = sc7180_adau7002_init; |
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} else { |
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link->ops = &sc7180_ops; |
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link->init = sc7180_init; |
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} |
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} |
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return devm_snd_soc_register_card(dev, card); |
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} |
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static const struct of_device_id sc7180_snd_device_id[] = { |
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{.compatible = "google,sc7180-trogdor"}, |
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{.compatible = "google,sc7180-coachz"}, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, sc7180_snd_device_id); |
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static struct platform_driver sc7180_snd_driver = { |
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.probe = sc7180_snd_platform_probe, |
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.driver = { |
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.name = "msm-snd-sc7180", |
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.of_match_table = sc7180_snd_device_id, |
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.pm = &snd_soc_pm_ops, |
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}, |
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}; |
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module_platform_driver(sc7180_snd_driver); |
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MODULE_DESCRIPTION("sc7180 ASoC Machine Driver"); |
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MODULE_LICENSE("GPL v2");
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