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|
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Authors: Keyon Jie <yang.jie@linux.intel.com>
//
#include <sound/pcm_params.h>
#include <sound/hdaudio_ext.h>
#include <sound/hda-mlink.h>
#include <sound/hda_register.h>
#include <sound/intel-nhlt.h>
#include <sound/sof/ipc4/header.h>
#include <uapi/sound/sof/header.h>
#include "../ipc4-priv.h"
#include "../ipc4-topology.h"
#include "../sof-priv.h"
#include "../sof-audio.h"
#include "hda.h"
/*
* The default method is to fetch NHLT from BIOS. With this parameter set
* it is possible to override that with NHLT in the SOF topology manifest.
*/
static bool hda_use_tplg_nhlt;
module_param_named(sof_use_tplg_nhlt, hda_use_tplg_nhlt, bool, 0444);
MODULE_PARM_DESC(sof_use_tplg_nhlt, "SOF topology nhlt override");
static struct snd_sof_dev *widget_to_sdev(struct snd_soc_dapm_widget *w)
{
struct snd_sof_widget *swidget = w->dobj.private;
struct snd_soc_component *component = swidget->scomp;
return snd_soc_component_get_drvdata(component);
}
int hda_dai_config(struct snd_soc_dapm_widget *w, unsigned int flags,
struct snd_sof_dai_config_data *data)
{
struct snd_sof_widget *swidget = w->dobj.private;
const struct sof_ipc_tplg_ops *tplg_ops;
struct snd_sof_dev *sdev;
int ret;
if (!swidget)
return 0;
sdev = widget_to_sdev(w);
tplg_ops = sof_ipc_get_ops(sdev, tplg);
if (tplg_ops && tplg_ops->dai_config) {
ret = tplg_ops->dai_config(sdev, swidget, flags, data);
if (ret < 0) {
dev_err(sdev->dev, "DAI config with flags %x failed for widget %s\n",
flags, w->name);
return ret;
}
}
return 0;
}
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_LINK)
static struct snd_sof_dev *dai_to_sdev(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai)
{
struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream);
return widget_to_sdev(w);
}
static const struct hda_dai_widget_dma_ops *
hda_dai_get_ops(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai)
{
struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream);
struct snd_sof_widget *swidget = w->dobj.private;
struct snd_sof_dev *sdev;
struct snd_sof_dai *sdai;
sdev = widget_to_sdev(w);
if (!swidget) {
dev_err(sdev->dev, "%s: swidget is NULL\n", __func__);
return NULL;
}
if (sdev->dspless_mode_selected)
return hda_select_dai_widget_ops(sdev, swidget);
sdai = swidget->private;
/* select and set the DAI widget ops if not set already */
if (!sdai->platform_private) {
const struct hda_dai_widget_dma_ops *ops =
hda_select_dai_widget_ops(sdev, swidget);
if (!ops)
return NULL;
/* check if mandatory ops are set */
if (!ops || !ops->get_hext_stream)
return NULL;
sdai->platform_private = ops;
}
return sdai->platform_private;
}
int hda_link_dma_cleanup(struct snd_pcm_substream *substream, struct hdac_ext_stream *hext_stream,
struct snd_soc_dai *cpu_dai)
{
const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, cpu_dai);
struct sof_intel_hda_stream *hda_stream;
struct hdac_ext_link *hlink;
struct snd_sof_dev *sdev;
int stream_tag;
if (!ops) {
dev_err(cpu_dai->dev, "DAI widget ops not set\n");
return -EINVAL;
}
sdev = dai_to_sdev(substream, cpu_dai);
hlink = ops->get_hlink(sdev, substream);
if (!hlink)
return -EINVAL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
stream_tag = hdac_stream(hext_stream)->stream_tag;
snd_hdac_ext_bus_link_clear_stream_id(hlink, stream_tag);
}
if (ops->release_hext_stream)
ops->release_hext_stream(sdev, cpu_dai, substream);
hext_stream->link_prepared = 0;
/* free the host DMA channel reserved by hostless streams */
hda_stream = hstream_to_sof_hda_stream(hext_stream);
hda_stream->host_reserved = 0;
return 0;
}
static int hda_link_dma_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *cpu_dai)
{
const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, cpu_dai);
struct hdac_ext_stream *hext_stream;
struct hdac_stream *hstream;
struct hdac_ext_link *hlink;
struct snd_sof_dev *sdev;
int stream_tag;
if (!ops) {
dev_err(cpu_dai->dev, "DAI widget ops not set\n");
return -EINVAL;
}
sdev = dai_to_sdev(substream, cpu_dai);
hlink = ops->get_hlink(sdev, substream);
if (!hlink)
return -EINVAL;
hext_stream = ops->get_hext_stream(sdev, cpu_dai, substream);
if (!hext_stream) {
if (ops->assign_hext_stream)
hext_stream = ops->assign_hext_stream(sdev, cpu_dai, substream);
}
if (!hext_stream)
return -EBUSY;
hstream = &hext_stream->hstream;
stream_tag = hstream->stream_tag;
if (hext_stream->hstream.direction == SNDRV_PCM_STREAM_PLAYBACK)
snd_hdac_ext_bus_link_set_stream_id(hlink, stream_tag);
/* set the hdac_stream in the codec dai */
if (ops->codec_dai_set_stream)
ops->codec_dai_set_stream(sdev, substream, hstream);
if (ops->reset_hext_stream)
ops->reset_hext_stream(sdev, hext_stream);
if (ops->calc_stream_format && ops->setup_hext_stream) {
unsigned int format_val = ops->calc_stream_format(sdev, substream, params);
ops->setup_hext_stream(sdev, hext_stream, format_val);
}
hext_stream->link_prepared = 1;
return 0;
}
static int __maybe_unused hda_dai_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai)
{
const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, cpu_dai);
struct hdac_ext_stream *hext_stream;
struct snd_sof_dev *sdev = dai_to_sdev(substream, cpu_dai);
if (!ops) {
dev_err(cpu_dai->dev, "DAI widget ops not set\n");
return -EINVAL;
}
hext_stream = ops->get_hext_stream(sdev, cpu_dai, substream);
if (!hext_stream)
return 0;
return hda_link_dma_cleanup(substream, hext_stream, cpu_dai);
}
static int __maybe_unused hda_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(dai, substream->stream);
const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, dai);
struct hdac_ext_stream *hext_stream;
struct snd_sof_dai_config_data data = { 0 };
unsigned int flags = SOF_DAI_CONFIG_FLAGS_HW_PARAMS;
struct snd_sof_dev *sdev = widget_to_sdev(w);
int ret;
if (!ops) {
dev_err(sdev->dev, "DAI widget ops not set\n");
return -EINVAL;
}
hext_stream = ops->get_hext_stream(sdev, dai, substream);
if (hext_stream && hext_stream->link_prepared)
return 0;
ret = hda_link_dma_hw_params(substream, params, dai);
if (ret < 0)
return ret;
hext_stream = ops->get_hext_stream(sdev, dai, substream);
flags |= SOF_DAI_CONFIG_FLAGS_2_STEP_STOP << SOF_DAI_CONFIG_FLAGS_QUIRK_SHIFT;
data.dai_data = hdac_stream(hext_stream)->stream_tag - 1;
return hda_dai_config(w, flags, &data);
}
/*
* In contrast to IPC3, the dai trigger in IPC4 mixes pipeline state changes
* (over IPC channel) and DMA state change (direct host register changes).
*/
static int __maybe_unused hda_dai_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
const struct hda_dai_widget_dma_ops *ops = hda_dai_get_ops(substream, dai);
struct hdac_ext_stream *hext_stream;
struct snd_sof_dev *sdev;
int ret;
if (!ops) {
dev_err(dai->dev, "DAI widget ops not set\n");
return -EINVAL;
}
dev_dbg(dai->dev, "cmd=%d dai %s direction %d\n", cmd,
dai->name, substream->stream);
sdev = dai_to_sdev(substream, dai);
hext_stream = ops->get_hext_stream(sdev, dai, substream);
if (!hext_stream)
return -EINVAL;
if (ops->pre_trigger) {
ret = ops->pre_trigger(sdev, dai, substream, cmd);
if (ret < 0)
return ret;
}
if (ops->trigger) {
ret = ops->trigger(sdev, dai, substream, cmd);
if (ret < 0)
return ret;
}
if (ops->post_trigger) {
ret = ops->post_trigger(sdev, dai, substream, cmd);
if (ret < 0)
return ret;
}
switch (cmd) {
case SNDRV_PCM_TRIGGER_SUSPEND:
ret = hda_link_dma_cleanup(substream, hext_stream, dai);
if (ret < 0) {
dev_err(sdev->dev, "%s: failed to clean up link DMA\n", __func__);
return ret;
}
break;
default:
break;
}
return 0;
}
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
static int hda_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int stream = substream->stream;
return hda_dai_hw_params(substream, &rtd->dpcm[stream].hw_params, dai);
}
static const struct snd_soc_dai_ops hda_dai_ops = {
.hw_params = hda_dai_hw_params,
.hw_free = hda_dai_hw_free,
.trigger = hda_dai_trigger,
.prepare = hda_dai_prepare,
};
#endif
static struct sof_ipc4_copier *widget_to_copier(struct snd_soc_dapm_widget *w)
{
struct snd_sof_widget *swidget = w->dobj.private;
struct snd_sof_dai *sdai = swidget->private;
struct sof_ipc4_copier *ipc4_copier = (struct sof_ipc4_copier *)sdai->private;
return ipc4_copier;
}
static int non_hda_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *cpu_dai)
{
struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream);
struct sof_ipc4_dma_config_tlv *dma_config_tlv;
const struct hda_dai_widget_dma_ops *ops;
struct sof_ipc4_dma_config *dma_config;
struct sof_ipc4_copier *ipc4_copier;
struct hdac_ext_stream *hext_stream;
struct hdac_stream *hstream;
struct snd_sof_dev *sdev;
int stream_id;
int ret;
ops = hda_dai_get_ops(substream, cpu_dai);
if (!ops) {
dev_err(cpu_dai->dev, "DAI widget ops not set\n");
return -EINVAL;
}
/* use HDaudio stream handling */
ret = hda_dai_hw_params(substream, params, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev, "%s: hda_dai_hw_params failed: %d\n", __func__, ret);
return ret;
}
sdev = widget_to_sdev(w);
if (sdev->dspless_mode_selected)
goto skip_tlv;
/* get stream_id */
hext_stream = ops->get_hext_stream(sdev, cpu_dai, substream);
if (!hext_stream) {
dev_err(cpu_dai->dev, "%s: no hext_stream found\n", __func__);
return -ENODEV;
}
hstream = &hext_stream->hstream;
stream_id = hstream->stream_tag;
if (!stream_id) {
dev_err(cpu_dai->dev, "%s: no stream_id allocated\n", __func__);
return -ENODEV;
}
/* configure TLV */
ipc4_copier = widget_to_copier(w);
dma_config_tlv = &ipc4_copier->dma_config_tlv;
dma_config_tlv->type = SOF_IPC4_GTW_DMA_CONFIG_ID;
/* dma_config_priv_size is zero */
dma_config_tlv->length = sizeof(dma_config_tlv->dma_config);
dma_config = &dma_config_tlv->dma_config;
dma_config->dma_method = SOF_IPC4_DMA_METHOD_HDA;
dma_config->pre_allocated_by_host = 1;
dma_config->dma_channel_id = stream_id - 1;
dma_config->stream_id = stream_id;
dma_config->dma_stream_channel_map.device_count = 0; /* mapping not used */
dma_config->dma_priv_config_size = 0;
skip_tlv:
return 0;
}
static int non_hda_dai_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int stream = substream->stream;
return non_hda_dai_hw_params(substream, &rtd->dpcm[stream].hw_params, cpu_dai);
}
static const struct snd_soc_dai_ops ssp_dai_ops = {
.hw_params = non_hda_dai_hw_params,
.hw_free = hda_dai_hw_free,
.trigger = hda_dai_trigger,
.prepare = non_hda_dai_prepare,
};
static const struct snd_soc_dai_ops dmic_dai_ops = {
.hw_params = non_hda_dai_hw_params,
.hw_free = hda_dai_hw_free,
.trigger = hda_dai_trigger,
.prepare = non_hda_dai_prepare,
};
int sdw_hda_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *cpu_dai,
int link_id)
{
struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream);
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
const struct hda_dai_widget_dma_ops *ops;
struct snd_soc_dai_link_ch_map *ch_maps;
struct hdac_ext_stream *hext_stream;
struct snd_soc_dai *dai;
struct snd_sof_dev *sdev;
bool cpu_dai_found = false;
int cpu_dai_id;
int ch_mask;
int ret;
int j;
ret = non_hda_dai_hw_params(substream, params, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev, "%s: non_hda_dai_hw_params failed %d\n", __func__, ret);
return ret;
}
ops = hda_dai_get_ops(substream, cpu_dai);
sdev = widget_to_sdev(w);
hext_stream = ops->get_hext_stream(sdev, cpu_dai, substream);
if (!hext_stream)
return -ENODEV;
/*
* in the case of SoundWire we need to program the PCMSyCM registers. In case
* of aggregated devices, we need to define the channel mask for each sublink
* by reconstructing the split done in soc-pcm.c
*/
for_each_rtd_cpu_dais(rtd, cpu_dai_id, dai) {
if (dai == cpu_dai) {
cpu_dai_found = true;
break;
}
}
if (!cpu_dai_found)
return -ENODEV;
ch_mask = 0;
for_each_link_ch_maps(rtd->dai_link, j, ch_maps) {
if (ch_maps->cpu == cpu_dai_id)
ch_mask |= ch_maps->ch_mask;
}
ret = hdac_bus_eml_sdw_map_stream_ch(sof_to_bus(sdev), link_id, cpu_dai->id,
ch_mask,
hdac_stream(hext_stream)->stream_tag,
substream->stream);
if (ret < 0) {
dev_err(cpu_dai->dev, "%s: hdac_bus_eml_sdw_map_stream_ch failed %d\n",
__func__, ret);
return ret;
}
return 0;
}
int sdw_hda_dai_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai,
int link_id)
{
struct snd_soc_dapm_widget *w = snd_soc_dai_get_widget(cpu_dai, substream->stream);
struct snd_sof_dev *sdev;
int ret;
ret = hda_dai_hw_free(substream, cpu_dai);
if (ret < 0) {
dev_err(cpu_dai->dev, "%s: non_hda_dai_hw_free failed %d\n", __func__, ret);
return ret;
}
sdev = widget_to_sdev(w);
/* in the case of SoundWire we need to reset the PCMSyCM registers */
ret = hdac_bus_eml_sdw_map_stream_ch(sof_to_bus(sdev), link_id, cpu_dai->id,
0, 0, substream->stream);
if (ret < 0) {
dev_err(cpu_dai->dev, "%s: hdac_bus_eml_sdw_map_stream_ch failed %d\n",
__func__, ret);
return ret;
}
return 0;
}
int sdw_hda_dai_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *cpu_dai)
{
return hda_dai_trigger(substream, cmd, cpu_dai);
}
static int hda_dai_suspend(struct hdac_bus *bus)
{
struct snd_soc_pcm_runtime *rtd;
struct hdac_ext_stream *hext_stream;
struct hdac_stream *s;
int ret;
/* set internal flag for BE */
list_for_each_entry(s, &bus->stream_list, list) {
hext_stream = stream_to_hdac_ext_stream(s);
/*
* clear stream. This should already be taken care for running
* streams when the SUSPEND trigger is called. But paused
* streams do not get suspended, so this needs to be done
* explicitly during suspend.
*/
if (hext_stream->link_substream) {
const struct hda_dai_widget_dma_ops *ops;
struct snd_sof_widget *swidget;
struct snd_soc_dapm_widget *w;
struct snd_soc_dai *cpu_dai;
struct snd_sof_dev *sdev;
struct snd_sof_dai *sdai;
rtd = snd_soc_substream_to_rtd(hext_stream->link_substream);
cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
w = snd_soc_dai_get_widget(cpu_dai, hdac_stream(hext_stream)->direction);
swidget = w->dobj.private;
sdev = widget_to_sdev(w);
sdai = swidget->private;
ops = sdai->platform_private;
/* for consistency with TRIGGER_SUSPEND */
if (ops->post_trigger) {
ret = ops->post_trigger(sdev, cpu_dai,
hext_stream->link_substream,
SNDRV_PCM_TRIGGER_SUSPEND);
if (ret < 0)
return ret;
}
ret = hda_link_dma_cleanup(hext_stream->link_substream,
hext_stream,
cpu_dai);
if (ret < 0)
return ret;
}
}
return 0;
}
static void ssp_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
{
const struct sof_intel_dsp_desc *chip;
int i;
chip = get_chip_info(sdev->pdata);
if (chip->hw_ip_version >= SOF_INTEL_ACE_2_0) {
for (i = 0; i < ops->num_drv; i++) {
if (strstr(ops->drv[i].name, "SSP"))
ops->drv[i].ops = &ssp_dai_ops;
}
}
}
static void dmic_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
{
const struct sof_intel_dsp_desc *chip;
int i;
chip = get_chip_info(sdev->pdata);
if (chip->hw_ip_version >= SOF_INTEL_ACE_2_0) {
for (i = 0; i < ops->num_drv; i++) {
if (strstr(ops->drv[i].name, "DMIC"))
ops->drv[i].ops = &dmic_dai_ops;
}
}
}
#else
static inline void ssp_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops) {}
static inline void dmic_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops) {}
#endif /* CONFIG_SND_SOC_SOF_HDA_LINK */
void hda_set_dai_drv_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *ops)
{
int i;
for (i = 0; i < ops->num_drv; i++) {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
if (strstr(ops->drv[i].name, "iDisp") ||
strstr(ops->drv[i].name, "Analog") ||
strstr(ops->drv[i].name, "Digital"))
ops->drv[i].ops = &hda_dai_ops;
#endif
}
ssp_set_dai_drv_ops(sdev, ops);
dmic_set_dai_drv_ops(sdev, ops);
if (sdev->pdata->ipc_type == SOF_IPC_TYPE_4 && !hda_use_tplg_nhlt) {
struct sof_ipc4_fw_data *ipc4_data = sdev->private;
ipc4_data->nhlt = intel_nhlt_init(sdev->dev);
}
}
void hda_ops_free(struct snd_sof_dev *sdev)
{
if (sdev->pdata->ipc_type == SOF_IPC_TYPE_4) {
struct sof_ipc4_fw_data *ipc4_data = sdev->private;
if (!hda_use_tplg_nhlt)
intel_nhlt_free(ipc4_data->nhlt);
kfree(sdev->private);
sdev->private = NULL;
}
}
EXPORT_SYMBOL_NS(hda_ops_free, SND_SOC_SOF_INTEL_HDA_COMMON);
/*
* common dai driver for skl+ platforms.
* some products who use this DAI array only physically have a subset of
* the DAIs, but no harm is done here by adding the whole set.
*/
struct snd_soc_dai_driver skl_dai[] = {
{
.name = "SSP0 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "SSP1 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "SSP2 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "SSP3 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "SSP4 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "SSP5 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "DMIC01 Pin",
.capture = {
.channels_min = 1,
.channels_max = 4,
},
},
{
.name = "DMIC16k Pin",
.capture = {
.channels_min = 1,
.channels_max = 4,
},
},
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
{
.name = "iDisp1 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "iDisp2 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "iDisp3 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "iDisp4 Pin",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "Analog CPU DAI",
.playback = {
.channels_min = 1,
.channels_max = 16,
},
.capture = {
.channels_min = 1,
.channels_max = 16,
},
},
{
.name = "Digital CPU DAI",
.playback = {
.channels_min = 1,
.channels_max = 16,
},
.capture = {
.channels_min = 1,
.channels_max = 16,
},
},
{
.name = "Alt Analog CPU DAI",
.playback = {
.channels_min = 1,
.channels_max = 16,
},
.capture = {
.channels_min = 1,
.channels_max = 16,
},
},
#endif
};
int hda_dsp_dais_suspend(struct snd_sof_dev *sdev)
{
/*
* In the corner case where a SUSPEND happens during a PAUSE, the ALSA core
* does not throw the TRIGGER_SUSPEND. This leaves the DAIs in an unbalanced state.
* Since the component suspend is called last, we can trap this corner case
* and force the DAIs to release their resources.
*/
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_LINK)
int ret;
ret = hda_dai_suspend(sof_to_bus(sdev));
if (ret < 0)
return ret;
#endif
return 0;
}
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