Commit 5c10da43 authored by Gongjun Song's avatar Gongjun Song Committed by Mark Brown

ASoC: Intel: sof_sdw: use common helpers for all Realtek amps

sof_sdw_rt1308.c/sof_sdw_rt1316.c/sof_sdw_rt1318.c handle amp
in basically the same way, optimized and merged into one file.
Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: default avatarGongjun Song <gongjun.song@intel.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20221206212507.359993-3-pierre-louis.bossart@linux.intel.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent c0660fce
......@@ -37,8 +37,7 @@ snd-soc-sof_da7219_max98373-objs := sof_da7219_max98373.o
snd-soc-ehl-rt5660-objs := ehl_rt5660.o
snd-soc-sof-ssp-amp-objs := sof_ssp_amp.o
snd-soc-sof-sdw-objs += sof_sdw.o \
sof_sdw_max98373.o sof_sdw_rt1308.o \
sof_sdw_rt1316.o sof_sdw_rt1318.o \
sof_sdw_max98373.o sof_sdw_rt_amp.o \
sof_sdw_rt5682.o sof_sdw_rt700.o \
sof_sdw_rt711.o sof_sdw_rt711_sdca.o \
sof_sdw_rt715.o sof_sdw_rt715_sdca.o \
......
......@@ -550,23 +550,23 @@ static struct sof_sdw_codec_info codec_info_list[] = {
.direction = {true, false},
.dai_name = "rt1308-aif",
.ops = &sof_sdw_rt1308_i2s_ops,
.init = sof_sdw_rt1308_init,
.exit = sof_sdw_rt1308_exit,
.init = sof_sdw_rt_amp_init,
.exit = sof_sdw_rt_amp_exit,
.codec_type = SOF_SDW_CODEC_TYPE_AMP,
},
{
.part_id = 0x1316,
.direction = {true, true},
.dai_name = "rt1316-aif",
.init = sof_sdw_rt1316_init,
.exit = sof_sdw_rt1316_exit,
.init = sof_sdw_rt_amp_init,
.exit = sof_sdw_rt_amp_exit,
.codec_type = SOF_SDW_CODEC_TYPE_AMP,
},
{
.part_id = 0x1318,
.direction = {true, true},
.dai_name = "rt1318-aif",
.init = sof_sdw_rt1318_init,
.init = sof_sdw_rt_amp_init,
.codec_type = SOF_SDW_CODEC_TYPE_AMP,
},
{
......
......@@ -125,30 +125,18 @@ int sof_sdw_rt700_init(struct snd_soc_card *card,
struct sof_sdw_codec_info *info,
bool playback);
/* RT1308 support */
/* RT1308 I2S support */
extern struct snd_soc_ops sof_sdw_rt1308_i2s_ops;
int sof_sdw_rt1308_init(struct snd_soc_card *card,
/* generic amp support */
int sof_sdw_rt_amp_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
bool playback);
int sof_sdw_rt1308_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link);
int sof_sdw_rt_amp_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link);
/* RT1316 support */
int sof_sdw_rt1316_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
bool playback);
int sof_sdw_rt1316_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link);
/* RT1318 support */
int sof_sdw_rt1318_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
bool playback);
/* RT715 support */
int sof_sdw_rt715_init(struct snd_soc_card *card,
......
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2020 Intel Corporation
/*
* sof_sdw_rt1316 - Helpers to handle RT1316 from generic machine driver
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <sound/control.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
#include <linux/dmi.h>
#include "sof_sdw_common.h"
#include "sof_sdw_amp_coeff_tables.h"
struct rt1316_platform_data {
const unsigned char *bq_params;
const unsigned int bq_params_cnt;
};
static const struct rt1316_platform_data dell_0b00_platform_data = {
.bq_params = dell_0b00_bq_params,
.bq_params_cnt = ARRAY_SIZE(dell_0b00_bq_params),
};
static const struct dmi_system_id dmi_platform_data[] = {
/* AlderLake devices */
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B00")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B01")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFF")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFE")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
};
static int rt1316_add_device_props(struct device *sdw_dev)
{
struct property_entry props[3] = {};
struct fwnode_handle *fwnode;
const struct dmi_system_id *dmi_data;
const struct rt1316_platform_data *pdata;
unsigned char params[RT1316_MAX_BQ_REG];
int ret;
dmi_data = dmi_first_match(dmi_platform_data);
if (!dmi_data)
return 0;
pdata = dmi_data->driver_data;
memcpy(&params, pdata->bq_params, sizeof(unsigned char) * pdata->bq_params_cnt);
props[0] = PROPERTY_ENTRY_U8_ARRAY("realtek,bq-params", params);
props[1] = PROPERTY_ENTRY_U32("realtek,bq-params-cnt", pdata->bq_params_cnt);
fwnode = fwnode_create_software_node(props, NULL);
if (IS_ERR(fwnode))
return PTR_ERR(fwnode);
ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
fwnode_handle_put(fwnode);
return ret;
}
static const struct snd_soc_dapm_widget rt1316_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
};
/*
* dapm routes for rt1316 will be registered dynamically according
* to the number of rt1316 used. The first two entries will be registered
* for one codec case, and the last two entries are also registered
* if two 1316s are used.
*/
static const struct snd_soc_dapm_route rt1316_map[] = {
{ "Speaker", NULL, "rt1316-1 SPOL" },
{ "Speaker", NULL, "rt1316-1 SPOR" },
{ "Speaker", NULL, "rt1316-2 SPOL" },
{ "Speaker", NULL, "rt1316-2 SPOR" },
};
static const struct snd_kcontrol_new rt1316_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
card->components = devm_kasprintf(card->dev, GFP_KERNEL,
"%s spk:rt1316",
card->components);
if (!card->components)
return -ENOMEM;
ret = snd_soc_add_card_controls(card, rt1316_controls,
ARRAY_SIZE(rt1316_controls));
if (ret) {
dev_err(card->dev, "rt1316 controls addition failed: %d\n", ret);
return ret;
}
ret = snd_soc_dapm_new_controls(&card->dapm, rt1316_widgets,
ARRAY_SIZE(rt1316_widgets));
if (ret) {
dev_err(card->dev, "rt1316 widgets addition failed: %d\n", ret);
return ret;
}
ret = snd_soc_dapm_add_routes(&card->dapm, rt1316_map, 2);
if (ret)
dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
return ret;
}
static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
ret = snd_soc_dapm_add_routes(&card->dapm, rt1316_map + 2, 2);
if (ret)
dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
return ret;
}
static int all_spk_init(struct snd_soc_pcm_runtime *rtd)
{
int ret;
ret = first_spk_init(rtd);
if (ret)
return ret;
return second_spk_init(rtd);
}
int sof_sdw_rt1316_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
{
struct mc_private *ctx = snd_soc_card_get_drvdata(card);
if (ctx->amp_dev1) {
device_remove_software_node(ctx->amp_dev1);
put_device(ctx->amp_dev1);
}
if (ctx->amp_dev2) {
device_remove_software_node(ctx->amp_dev2);
put_device(ctx->amp_dev2);
}
return 0;
}
int sof_sdw_rt1316_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
bool playback)
{
struct mc_private *ctx = snd_soc_card_get_drvdata(card);
struct device *sdw_dev1, *sdw_dev2;
int ret;
/* Count amp number and do init on playback link only. */
if (!playback)
return 0;
info->amp_num++;
if (info->amp_num == 1)
dai_links->init = first_spk_init;
if (info->amp_num == 2) {
sdw_dev1 = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
if (!sdw_dev1)
return -EPROBE_DEFER;
ret = rt1316_add_device_props(sdw_dev1);
if (ret < 0) {
put_device(sdw_dev1);
return ret;
}
ctx->amp_dev1 = sdw_dev1;
sdw_dev2 = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[1].name);
if (!sdw_dev2)
return -EPROBE_DEFER;
ret = rt1316_add_device_props(sdw_dev2);
if (ret < 0) {
put_device(sdw_dev2);
return ret;
}
ctx->amp_dev2 = sdw_dev2;
/*
* if two 1316s are in one dai link, the init function
* in this dai link will be first set for the first speaker,
* and it should be reset to initialize all speakers when
* the second speaker is found.
*/
if (dai_links->init)
dai_links->init = all_spk_init;
else
dai_links->init = second_spk_init;
}
return 0;
}
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2022 Intel Corporation
/*
* sof_sdw_rt1318 - Helpers to handle RT1318 from generic machine driver
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <sound/control.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include "sof_sdw_common.h"
static const struct snd_soc_dapm_widget rt1318_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
};
/*
* dapm routes for rt1318 will be registered dynamically according
* to the number of rt1318 used. The first two entries will be registered
* for one codec case, and the last two entries are also registered
* if two 1318s are used.
*/
static const struct snd_soc_dapm_route rt1318_map[] = {
{ "Speaker", NULL, "rt1318-1 SPOL" },
{ "Speaker", NULL, "rt1318-1 SPOR" },
{ "Speaker", NULL, "rt1318-2 SPOL" },
{ "Speaker", NULL, "rt1318-2 SPOR" },
};
static const struct snd_kcontrol_new rt1318_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
card->components = devm_kasprintf(card->dev, GFP_KERNEL,
"%s spk:rt1318",
card->components);
if (!card->components)
return -ENOMEM;
ret = snd_soc_add_card_controls(card, rt1318_controls,
ARRAY_SIZE(rt1318_controls));
if (ret) {
dev_err(card->dev, "rt1318 controls addition failed: %d\n", ret);
return ret;
}
ret = snd_soc_dapm_new_controls(&card->dapm, rt1318_widgets,
ARRAY_SIZE(rt1318_widgets));
if (ret) {
dev_err(card->dev, "rt1318 widgets addition failed: %d\n", ret);
return ret;
}
ret = snd_soc_dapm_add_routes(&card->dapm, rt1318_map, 2);
if (ret)
dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
return ret;
}
static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
int ret;
ret = snd_soc_dapm_add_routes(&card->dapm, rt1318_map + 2, 2);
if (ret)
dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
return ret;
}
static int all_spk_init(struct snd_soc_pcm_runtime *rtd)
{
int ret;
ret = first_spk_init(rtd);
if (ret)
return ret;
return second_spk_init(rtd);
}
int sof_sdw_rt1318_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
bool playback)
{
/* Count amp number and do init on playback link only. */
if (!playback)
return 0;
info->amp_num++;
if (info->amp_num == 1)
dai_links->init = first_spk_init;
if (info->amp_num == 2) {
/*
* if two 1318s are in one dai link, the init function
* in this dai link will be first set for the first speaker,
* and it should be reset to initialize all speakers when
* the second speaker is found.
*/
if (dai_links->init)
dai_links->init = all_spk_init;
else
dai_links->init = second_spk_init;
}
return 0;
}
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2020 Intel Corporation
// Copyright (c) 2022 Intel Corporation
/*
* sof_sdw_rt1308 - Helpers to handle RT1308 from generic machine driver
* sof_sdw_rt_amp - Helpers to handle RT1308/RT1316/RT1318 from generic machine driver
*/
#include <linux/device.h>
......@@ -18,16 +18,26 @@
#include "sof_sdw_amp_coeff_tables.h"
#include "../../codecs/rt1308.h"
struct rt1308_platform_data {
#define CODEC_NAME_SIZE 7
/* choose a larger value to resolve compatibility issues */
#define RT_AMP_MAX_BQ_REG RT1316_MAX_BQ_REG
struct rt_amp_platform_data {
const unsigned char *bq_params;
const unsigned int bq_params_cnt;
};
static const struct rt1308_platform_data dell_0a5d_platform_data = {
static const struct rt_amp_platform_data dell_0a5d_platform_data = {
.bq_params = dell_0a5d_bq_params,
.bq_params_cnt = ARRAY_SIZE(dell_0a5d_bq_params),
};
static const struct rt_amp_platform_data dell_0b00_platform_data = {
.bq_params = dell_0b00_bq_params,
.bq_params_cnt = ARRAY_SIZE(dell_0b00_bq_params),
};
static const struct dmi_system_id dmi_platform_data[] = {
/* CometLake devices */
{
......@@ -59,15 +69,45 @@ static const struct dmi_system_id dmi_platform_data[] = {
},
.driver_data = (void *)&dell_0a5d_platform_data,
},
/* AlderLake devices */
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B00")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B01")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFF")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFE")
},
.driver_data = (void *)&dell_0b00_platform_data,
},
{},
};
static int rt1308_add_device_props(struct device *sdw_dev)
static int rt_amp_add_device_props(struct device *sdw_dev)
{
struct property_entry props[3] = {};
struct fwnode_handle *fwnode;
const struct dmi_system_id *dmi_data;
const struct rt1308_platform_data *pdata;
unsigned char params[RT1308_MAX_BQ_REG];
const struct rt_amp_platform_data *pdata;
unsigned char params[RT_AMP_MAX_BQ_REG];
int ret;
dmi_data = dmi_first_match(dmi_platform_data);
......@@ -91,15 +131,19 @@ static int rt1308_add_device_props(struct device *sdw_dev)
return ret;
}
static const struct snd_soc_dapm_widget rt1308_widgets[] = {
static const struct snd_kcontrol_new rt_amp_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static const struct snd_soc_dapm_widget rt_amp_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
};
/*
* dapm routes for rt1308 will be registered dynamically according
* to the number of rt1308 used. The first two entries will be registered
* for one codec case, and the last two entries are also registered
* if two 1308s are used.
* dapm routes for rt1308/rt1316/rt1318 will be registered dynamically
* according to the number of rt1308/rt1316/rt1318 used. The first two
* entries will be registered for one codec case, and the last two entries
* are also registered if two 1308s/1316s/1318s are used.
*/
static const struct snd_soc_dapm_route rt1308_map[] = {
{ "Speaker", NULL, "rt1308-1 SPOL" },
......@@ -108,36 +152,69 @@ static const struct snd_soc_dapm_route rt1308_map[] = {
{ "Speaker", NULL, "rt1308-2 SPOR" },
};
static const struct snd_kcontrol_new rt1308_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
static const struct snd_soc_dapm_route rt1316_map[] = {
{ "Speaker", NULL, "rt1316-1 SPOL" },
{ "Speaker", NULL, "rt1316-1 SPOR" },
{ "Speaker", NULL, "rt1316-2 SPOL" },
{ "Speaker", NULL, "rt1316-2 SPOR" },
};
static const struct snd_soc_dapm_route rt1318_map[] = {
{ "Speaker", NULL, "rt1318-1 SPOL" },
{ "Speaker", NULL, "rt1318-1 SPOR" },
{ "Speaker", NULL, "rt1318-2 SPOL" },
{ "Speaker", NULL, "rt1318-2 SPOR" },
};
static const struct snd_soc_dapm_route *get_codec_name_and_route(struct snd_soc_pcm_runtime *rtd,
char *codec_name)
{
const char *dai_name;
dai_name = rtd->dai_link->codecs->dai_name;
/* get the codec name */
snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
/* choose the right codec's map */
if (strcmp(codec_name, "rt1308") == 0)
return rt1308_map;
else if (strcmp(codec_name, "rt1316") == 0)
return rt1316_map;
else
return rt1318_map;
}
static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
const struct snd_soc_dapm_route *rt_amp_map;
char codec_name[CODEC_NAME_SIZE];
int ret;
rt_amp_map = get_codec_name_and_route(rtd, codec_name);
card->components = devm_kasprintf(card->dev, GFP_KERNEL,
"%s spk:rt1308",
card->components);
"%s spk:%s",
card->components, codec_name);
if (!card->components)
return -ENOMEM;
ret = snd_soc_add_card_controls(card, rt1308_controls,
ARRAY_SIZE(rt1308_controls));
ret = snd_soc_add_card_controls(card, rt_amp_controls,
ARRAY_SIZE(rt_amp_controls));
if (ret) {
dev_err(card->dev, "rt1308 controls addition failed: %d\n", ret);
dev_err(card->dev, "%s controls addition failed: %d\n", codec_name, ret);
return ret;
}
ret = snd_soc_dapm_new_controls(&card->dapm, rt1308_widgets,
ARRAY_SIZE(rt1308_widgets));
ret = snd_soc_dapm_new_controls(&card->dapm, rt_amp_widgets,
ARRAY_SIZE(rt_amp_widgets));
if (ret) {
dev_err(card->dev, "rt1308 widgets addition failed: %d\n", ret);
dev_err(card->dev, "%s widgets addition failed: %d\n", codec_name, ret);
return ret;
}
ret = snd_soc_dapm_add_routes(&card->dapm, rt1308_map, 2);
ret = snd_soc_dapm_add_routes(&card->dapm, rt_amp_map, 2);
if (ret)
dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
......@@ -147,9 +224,13 @@ static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
const struct snd_soc_dapm_route *rt_amp_map;
char codec_name[CODEC_NAME_SIZE];
int ret;
ret = snd_soc_dapm_add_routes(&card->dapm, rt1308_map + 2, 2);
rt_amp_map = get_codec_name_and_route(rtd, codec_name);
ret = snd_soc_dapm_add_routes(&card->dapm, rt_amp_map + 2, 2);
if (ret)
dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
......@@ -204,7 +285,7 @@ struct snd_soc_ops sof_sdw_rt1308_i2s_ops = {
.hw_params = rt1308_i2s_hw_params,
};
int sof_sdw_rt1308_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
int sof_sdw_rt_amp_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
{
struct mc_private *ctx = snd_soc_card_get_drvdata(card);
......@@ -221,7 +302,7 @@ int sof_sdw_rt1308_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_
return 0;
}
int sof_sdw_rt1308_init(struct snd_soc_card *card,
int sof_sdw_rt_amp_init(struct snd_soc_card *card,
const struct snd_soc_acpi_link_adr *link,
struct snd_soc_dai_link *dai_links,
struct sof_sdw_codec_info *info,
......@@ -244,7 +325,7 @@ int sof_sdw_rt1308_init(struct snd_soc_card *card,
if (!sdw_dev1)
return -EPROBE_DEFER;
ret = rt1308_add_device_props(sdw_dev1);
ret = rt_amp_add_device_props(sdw_dev1);
if (ret < 0) {
put_device(sdw_dev1);
return ret;
......@@ -255,7 +336,7 @@ int sof_sdw_rt1308_init(struct snd_soc_card *card,
if (!sdw_dev2)
return -EPROBE_DEFER;
ret = rt1308_add_device_props(sdw_dev2);
ret = rt_amp_add_device_props(sdw_dev2);
if (ret < 0) {
put_device(sdw_dev2);
return ret;
......@@ -263,7 +344,7 @@ int sof_sdw_rt1308_init(struct snd_soc_card *card,
ctx->amp_dev2 = sdw_dev2;
/*
* if two 1308s are in one dai link, the init function
* if two amps are in one dai link, the init function
* in this dai link will be first set for the first speaker,
* and it should be reset to initialize all speakers when
* the second speaker is found.
......
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