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284 lines
7.2 KiB
284 lines
7.2 KiB
// 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 <linux/soundwire/sdw.h> |
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#include "common.h" |
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#include "lpass.h" |
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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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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 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 = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_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(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, 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 = 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 LPASS_CDC_DMA_RX0: |
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case LPASS_CDC_DMA_TX3: |
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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 = 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(card, "HDMI Jack", 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 = 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_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 LPASS_CDC_DMA_TX3: |
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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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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 = asoc_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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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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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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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 = asoc_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 = asoc_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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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 = asoc_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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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 const struct snd_soc_ops sc7280_ops = { |
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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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}; |
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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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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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} |
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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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