452 lines
12 KiB
C
452 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
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//
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// ALSA SoC Machine driver for sc7280
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#include <linux/input.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 <sound/rt5682s.h>
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#include <linux/soundwire/sdw.h>
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#include <sound/pcm_params.h>
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#include "../codecs/rt5682.h"
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#include "../codecs/rt5682s.h"
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#include "common.h"
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#include "lpass.h"
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#include "qdsp6/q6afe.h"
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#define DEFAULT_MCLK_RATE 19200000
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#define RT5682_PLL_FREQ (48000 * 512)
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#define MI2S_BCLK_RATE 1536000
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struct sc7280_snd_data {
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struct snd_soc_card card;
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struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS];
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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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bool jack_setup;
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bool stream_prepared[LPASS_MAX_PORTS];
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};
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static void sc7280_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 struct snd_soc_jack_pin sc7280_jack_pins[] = {
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{
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.pin = "Headphone Jack",
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.mask = SND_JACK_HEADPHONE,
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},
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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};
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static int sc7280_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 sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
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struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
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struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(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, i;
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if (!pdata->jack_setup) {
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rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
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SND_JACK_HEADSET | SND_JACK_LINEOUT |
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SND_JACK_MECHANICAL |
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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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SND_JACK_BTN_4 | SND_JACK_BTN_5,
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&pdata->hs_jack,
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sc7280_jack_pins,
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ARRAY_SIZE(sc7280_jack_pins));
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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 = sc7280_jack_free;
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pdata->jack_setup = true;
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}
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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case LPASS_CDC_DMA_RX0:
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case LPASS_CDC_DMA_TX3:
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case TX_CODEC_DMA_TX_3:
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for_each_rtd_codec_dais(rtd, i, codec_dai) {
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rval = snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
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if (rval != 0 && rval != -ENOTSUPP) {
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dev_err(card->dev, "Failed to set jack: %d\n", rval);
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return rval;
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}
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}
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break;
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default:
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break;
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}
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return 0;
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}
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static int sc7280_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 sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
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struct snd_soc_dai *codec_dai = snd_soc_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(card, "HDMI Jack", SND_JACK_LINEOUT,
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&pdata->hdmi_jack);
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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 = sc7280_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 sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
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struct snd_soc_card *card = rtd->card;
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struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
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int ret;
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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_CBC_CFC |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_I2S);
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ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL2, RT5682S_PLL_S_MCLK,
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DEFAULT_MCLK_RATE, RT5682_PLL_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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ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL2,
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RT5682_PLL_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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return ret;
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}
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return 0;
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}
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static int sc7280_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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case LPASS_CDC_DMA_TX3:
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case TX_CODEC_DMA_TX_3:
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return sc7280_headset_init(rtd);
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case LPASS_CDC_DMA_RX0:
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case LPASS_CDC_DMA_VA_TX0:
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case MI2S_SECONDARY:
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case RX_CODEC_DMA_RX_0:
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case SECONDARY_MI2S_RX:
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case VA_CODEC_DMA_TX_0:
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return 0;
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case LPASS_DP_RX:
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return sc7280_hdmi_init(rtd);
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default:
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
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}
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return -EINVAL;
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}
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static int sc7280_snd_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_pcm_runtime *runtime = substream->runtime;
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai;
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const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
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struct sdw_stream_runtime *sruntime;
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int i;
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if (!rtd->dai_link->no_pcm) {
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snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
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snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000);
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}
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switch (cpu_dai->id) {
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case LPASS_CDC_DMA_TX3:
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case LPASS_CDC_DMA_RX0:
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case RX_CODEC_DMA_RX_0:
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case SECONDARY_MI2S_RX:
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case TX_CODEC_DMA_TX_3:
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case VA_CODEC_DMA_TX_0:
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for_each_rtd_codec_dais(rtd, i, codec_dai) {
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sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
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if (sruntime != ERR_PTR(-ENOTSUPP))
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pdata->sruntime[cpu_dai->id] = sruntime;
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}
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break;
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}
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return 0;
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}
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static int sc7280_snd_swr_prepare(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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const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
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struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
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int ret;
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if (!sruntime)
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return 0;
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if (data->stream_prepared[cpu_dai->id]) {
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sdw_disable_stream(sruntime);
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sdw_deprepare_stream(sruntime);
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data->stream_prepared[cpu_dai->id] = false;
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}
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ret = sdw_prepare_stream(sruntime);
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if (ret)
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return ret;
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ret = sdw_enable_stream(sruntime);
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if (ret) {
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sdw_deprepare_stream(sruntime);
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return ret;
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}
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data->stream_prepared[cpu_dai->id] = true;
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return ret;
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}
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static int sc7280_snd_prepare(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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const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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switch (cpu_dai->id) {
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case LPASS_CDC_DMA_RX0:
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case LPASS_CDC_DMA_TX3:
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case RX_CODEC_DMA_RX_0:
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case TX_CODEC_DMA_TX_3:
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case VA_CODEC_DMA_TX_0:
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return sc7280_snd_swr_prepare(substream);
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default:
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break;
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}
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return 0;
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}
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static int sc7280_snd_hw_free(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 sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
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const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
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switch (cpu_dai->id) {
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case LPASS_CDC_DMA_RX0:
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case LPASS_CDC_DMA_TX3:
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case RX_CODEC_DMA_RX_0:
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case TX_CODEC_DMA_TX_3:
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case VA_CODEC_DMA_TX_0:
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if (sruntime && data->stream_prepared[cpu_dai->id]) {
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sdw_disable_stream(sruntime);
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sdw_deprepare_stream(sruntime);
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data->stream_prepared[cpu_dai->id] = false;
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}
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break;
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default:
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break;
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}
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return 0;
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}
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static void sc7280_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 sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
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struct snd_soc_dai *cpu_dai = snd_soc_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 SECONDARY_MI2S_RX:
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snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
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0, SNDRV_PCM_STREAM_PLAYBACK);
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break;
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default:
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break;
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}
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}
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static int sc7280_snd_startup(struct snd_pcm_substream *substream)
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{
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unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
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unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
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int ret = 0;
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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ret = sc7280_rt5682_init(rtd);
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break;
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case SECONDARY_MI2S_RX:
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codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
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snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
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MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
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snd_soc_dai_set_fmt(cpu_dai, fmt);
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snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
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break;
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default:
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break;
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}
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return ret;
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}
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static const struct snd_soc_ops sc7280_ops = {
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.startup = sc7280_snd_startup,
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.hw_params = sc7280_snd_hw_params,
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.hw_free = sc7280_snd_hw_free,
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.prepare = sc7280_snd_prepare,
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.shutdown = sc7280_snd_shutdown,
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};
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static const struct snd_soc_dapm_widget sc7280_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_kcontrol_new sc7280_snd_controls[] = {
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SOC_DAPM_PIN_SWITCH("Headphone Jack"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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};
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static int sc7280_snd_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params)
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{
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struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
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struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
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rate->min = rate->max = 48000;
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channels->min = channels->max = 2;
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snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
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return 0;
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}
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static int sc7280_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 sc7280_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, i;
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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 = "SC7280";
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card->dev = dev;
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card->dapm_widgets = sc7280_snd_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets);
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card->controls = sc7280_snd_controls;
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card->num_controls = ARRAY_SIZE(sc7280_snd_controls);
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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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link->init = sc7280_init;
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link->ops = &sc7280_ops;
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if (link->no_pcm == 1)
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link->be_hw_params_fixup = sc7280_snd_be_hw_params_fixup;
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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 sc7280_snd_device_id[] = {
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{ .compatible = "google,sc7280-herobrine" },
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{}
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};
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MODULE_DEVICE_TABLE(of, sc7280_snd_device_id);
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static struct platform_driver sc7280_snd_driver = {
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.probe = sc7280_snd_platform_probe,
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.driver = {
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.name = "msm-snd-sc7280",
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.of_match_table = sc7280_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(sc7280_snd_driver);
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MODULE_DESCRIPTION("sc7280 ASoC Machine Driver");
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MODULE_LICENSE("GPL");
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