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ASoC: SOF: ACPI: avoid reverse module dependency 

The SOF-ACPI driver is backwards from the normal Linux model, it has a
generic driver that knows about all the specific drivers, as opposed to
having hardware specific drivers that link against a common framework.

This requires ugly Kconfig magic and leads to missed dependencies as
seen in this link error:

arm-linux-gnueabi-ld: sound/soc/sof/sof-pci-dev.o: in function `sof_acpi_probe':
sof-pci-dev.c:(.text+0x1c): undefined reference to `snd_intel_dsp_driver_probe'

Change it to use the normal probe order of starting with a specific
device in a driver, turning the sof-acpi-dev.c driver into a
library (exported symbols are name-spaced to avoid symbol pollution).

For backwards-compatibility with previous Kconfigs, the default values
for platform drivers uses the top-level ACPI configurations. The
modules were also renamed to allow for gradual transitions in test
scripts.

Co-developed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210302003125.1178419-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
master
Arnd Bergmann 2021-03-01 18:31:20 -06:00 committed by Takashi Iwai
parent c7929b15b6
commit 8a49cd11e6
9 changed files with 215 additions and 176 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sound/soc/sof/Kconfig
View File

@ -23,15 +23,17 @@ config SND_SOC_SOF_PCI
config SND_SOC_SOF_ACPI
tristate "SOF ACPI enumeration support"
depends on ACPI || COMPILE_TEST
select SND_SOC_SOF
select SND_SOC_ACPI if ACPI
select IOSF_MBI if X86 && PCI
help
This adds support for ACPI enumeration. This option is required
to enable Intel Broadwell/Baytrail/Cherrytrail devices.
For backwards-compatibility with previous configurations the selection will
be used as default for platform-specific drivers.
Say Y if you need this option.
If unsure select "N".
config SND_SOC_SOF_ACPI_DEV
tristate
config SND_SOC_SOF_OF
tristate "SOF OF enumeration support"
depends on OF || COMPILE_TEST

2
sound/soc/sof/Makefile
View File

@ -14,7 +14,7 @@ obj-$(CONFIG_SND_SOC_SOF) += snd-sof.o
obj-$(CONFIG_SND_SOC_SOF_NOCODEC) += snd-sof-nocodec.o
obj-$(CONFIG_SND_SOC_SOF_ACPI) += snd-sof-acpi.o
obj-$(CONFIG_SND_SOC_SOF_ACPI_DEV) += snd-sof-acpi.o
obj-$(CONFIG_SND_SOC_SOF_OF) += snd-sof-of.o
obj-$(CONFIG_SND_SOC_SOF_PCI) += snd-sof-pci.o

48
sound/soc/sof/intel/Kconfig
View File

@ -9,14 +9,6 @@ config SND_SOC_SOF_INTEL_TOPLEVEL
if SND_SOC_SOF_INTEL_TOPLEVEL
config SND_SOC_SOF_INTEL_ACPI
def_tristate SND_SOC_SOF_ACPI
select SND_SOC_SOF_BAYTRAIL if SND_SOC_SOF_BAYTRAIL_SUPPORT
select SND_SOC_SOF_BROADWELL if SND_SOC_SOF_BROADWELL_SUPPORT
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level.
config SND_SOC_SOF_INTEL_PCI
def_tristate SND_SOC_SOF_PCI
select SND_SOC_SOF_MERRIFIELD if SND_SOC_SOF_MERRIFIELD_SUPPORT
@ -50,18 +42,25 @@ config SND_SOC_SOF_INTEL_ATOM_HIFI_EP
config SND_SOC_SOF_INTEL_COMMON
tristate
select SND_SOC_SOF
select SND_SOC_ACPI_INTEL_MATCH
select SND_SOC_SOF_XTENSA
select SND_SOC_INTEL_MACH
select SND_SOC_ACPI if ACPI
select SND_INTEL_DSP_CONFIG
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level.
if SND_SOC_SOF_INTEL_ACPI
if SND_SOC_SOF_ACPI
config SND_SOC_SOF_BAYTRAIL_SUPPORT
bool "SOF support for Baytrail, Braswell and Cherrytrail"
config SND_SOC_SOF_BAYTRAIL
tristate "SOF support for Baytrail, Braswell and Cherrytrail"
default SND_SOC_SOF_ACPI
select SND_SOC_SOF_INTEL_COMMON
select SND_SOC_SOF_INTEL_ATOM_HIFI_EP
select SND_SOC_SOF_ACPI_DEV
select IOSF_MBI if X86 && PCI
help
This adds support for Sound Open Firmware for Intel(R) platforms
using the Baytrail, Braswell or Cherrytrail processors.
@ -75,17 +74,12 @@ config SND_SOC_SOF_BAYTRAIL_SUPPORT
Say Y if you want to enable SOF on Baytrail/Cherrytrail.
If unsure select "N".
config SND_SOC_SOF_BAYTRAIL
tristate
select SND_SOC_SOF_INTEL_ATOM_HIFI_EP
select SND_INTEL_DSP_CONFIG
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level.
config SND_SOC_SOF_BROADWELL_SUPPORT
bool "SOF support for Broadwell"
select SND_INTEL_DSP_CONFIG
config SND_SOC_SOF_BROADWELL
tristate "SOF support for Broadwell"
default SND_SOC_SOF_ACPI
select SND_SOC_SOF_INTEL_COMMON
select SND_SOC_SOF_INTEL_HIFI_EP_IPC
select SND_SOC_SOF_ACPI_DEV
help
This adds support for Sound Open Firmware for Intel(R) platforms
using the Broadwell processors.
@ -100,15 +94,7 @@ config SND_SOC_SOF_BROADWELL_SUPPORT
Say Y if you want to enable SOF on Broadwell.
If unsure select "N".
config SND_SOC_SOF_BROADWELL
tristate
select SND_SOC_SOF_INTEL_COMMON
select SND_SOC_SOF_INTEL_HIFI_EP_IPC
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level.
endif ## SND_SOC_SOF_INTEL_ACPI
endif ## SND_SOC_SOF_ACPI
if SND_SOC_SOF_INTEL_PCI

8
sound/soc/sof/intel/Makefile
View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
snd-sof-intel-byt-objs := byt.o
snd-sof-intel-bdw-objs := bdw.o
snd-sof-acpi-intel-byt-objs := byt.o
snd-sof-acpi-intel-bdw-objs := bdw.o
snd-sof-intel-ipc-objs := intel-ipc.o
@ -13,8 +13,8 @@ snd-sof-intel-hda-common-$(CONFIG_SND_SOC_SOF_HDA_PROBES) += hda-compress.o
snd-sof-intel-hda-objs := hda-codec.o
obj-$(CONFIG_SND_SOC_SOF_INTEL_ATOM_HIFI_EP) += snd-sof-intel-byt.o
obj-$(CONFIG_SND_SOC_SOF_BROADWELL) += snd-sof-intel-bdw.o
obj-$(CONFIG_SND_SOC_SOF_INTEL_ATOM_HIFI_EP) += snd-sof-acpi-intel-byt.o
obj-$(CONFIG_SND_SOC_SOF_BROADWELL) += snd-sof-acpi-intel-bdw.o
obj-$(CONFIG_SND_SOC_SOF_INTEL_HIFI_EP_IPC) += snd-sof-intel-ipc.o
obj-$(CONFIG_SND_SOC_SOF_HDA_COMMON) += snd-sof-intel-hda-common.o
obj-$(CONFIG_SND_SOC_SOF_HDA) += snd-sof-intel-hda.o

67
sound/soc/sof/intel/bdw.c
View File

@ -15,8 +15,12 @@
#include <linux/module.h>
#include <sound/sof.h>
#include <sound/sof/xtensa.h>
#include <sound/soc-acpi.h>
#include <sound/soc-acpi-intel-match.h>
#include <sound/intel-dsp-config.h>
#include "../ops.h"
#include "shim.h"
#include "../sof-acpi-dev.h"
#include "../sof-audio.h"
/* BARs */
@ -590,7 +594,7 @@ static struct snd_soc_dai_driver bdw_dai[] = {
};
/* broadwell ops */
const struct snd_sof_dsp_ops sof_bdw_ops = {
static const struct snd_sof_dsp_ops sof_bdw_ops = {
/*Device init */
.probe = bdw_probe,
@ -651,14 +655,69 @@ const struct snd_sof_dsp_ops sof_bdw_ops = {
.arch_ops = &sof_xtensa_arch_ops,
};
EXPORT_SYMBOL_NS(sof_bdw_ops, SND_SOC_SOF_BROADWELL);
const struct sof_intel_dsp_desc bdw_chip_info = {
static const struct sof_intel_dsp_desc bdw_chip_info = {
.cores_num = 1,
.host_managed_cores_mask = 1,
};
EXPORT_SYMBOL_NS(bdw_chip_info, SND_SOC_SOF_BROADWELL);
static const struct sof_dev_desc sof_acpi_broadwell_desc = {
.machines = snd_soc_acpi_intel_broadwell_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = -1,
.irqindex_host_ipc = 0,
.chip_info = &bdw_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-bdw.ri",
.nocodec_tplg_filename = "sof-bdw-nocodec.tplg",
.ops = &sof_bdw_ops,
};
static const struct acpi_device_id sof_broadwell_match[] = {
{ "INT3438", (unsigned long)&sof_acpi_broadwell_desc },
{ }
};
MODULE_DEVICE_TABLE(acpi, sof_broadwell_match);
static int sof_broadwell_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct acpi_device_id *id;
const struct sof_dev_desc *desc;
int ret;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
ret = snd_intel_acpi_dsp_driver_probe(dev, id->id);
if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) {
dev_dbg(dev, "SOF ACPI driver not selected, aborting probe\n");
return -ENODEV;
}
desc = device_get_match_data(dev);
if (!desc)
return -ENODEV;
return sof_acpi_probe(pdev, device_get_match_data(dev));
}
/* acpi_driver definition */
static struct platform_driver snd_sof_acpi_intel_bdw_driver = {
.probe = sof_broadwell_probe,
.remove = sof_acpi_remove,
.driver = {
.name = "sof-audio-acpi-intel-bdw",
.pm = &sof_acpi_pm,
.acpi_match_table = sof_broadwell_match,
},
};
module_platform_driver(snd_sof_acpi_intel_bdw_driver);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HIFI_EP_IPC);
MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
MODULE_IMPORT_NS(SND_SOC_SOF_ACPI_DEV);

106
sound/soc/sof/intel/byt.c
View File

@ -15,8 +15,12 @@
#include <linux/module.h>
#include <sound/sof.h>
#include <sound/sof/xtensa.h>
#include <sound/soc-acpi.h>
#include <sound/soc-acpi-intel-match.h>
#include <sound/intel-dsp-config.h>
#include "../ops.h"
#include "shim.h"
#include "../sof-acpi-dev.h"
#include "../sof-audio.h"
#include "../../intel/common/soc-intel-quirks.h"
@ -822,7 +826,7 @@ irq:
}
/* baytrail ops */
const struct snd_sof_dsp_ops sof_byt_ops = {
static const struct snd_sof_dsp_ops sof_byt_ops = {
/* device init */
.probe = byt_acpi_probe,
.remove = byt_remove,
@ -892,16 +896,14 @@ const struct snd_sof_dsp_ops sof_byt_ops = {
.arch_ops = &sof_xtensa_arch_ops,
};
EXPORT_SYMBOL_NS(sof_byt_ops, SND_SOC_SOF_BAYTRAIL);
const struct sof_intel_dsp_desc byt_chip_info = {
static const struct sof_intel_dsp_desc byt_chip_info = {
.cores_num = 1,
.host_managed_cores_mask = 1,
};
EXPORT_SYMBOL_NS(byt_chip_info, SND_SOC_SOF_BAYTRAIL);
/* cherrytrail and braswell ops */
const struct snd_sof_dsp_ops sof_cht_ops = {
static const struct snd_sof_dsp_ops sof_cht_ops = {
/* device init */
.probe = byt_acpi_probe,
.remove = byt_remove,
@ -972,16 +974,104 @@ const struct snd_sof_dsp_ops sof_cht_ops = {
.arch_ops = &sof_xtensa_arch_ops,
};
EXPORT_SYMBOL_NS(sof_cht_ops, SND_SOC_SOF_BAYTRAIL);
const struct sof_intel_dsp_desc cht_chip_info = {
static const struct sof_intel_dsp_desc cht_chip_info = {
.cores_num = 1,
.host_managed_cores_mask = 1,
};
EXPORT_SYMBOL_NS(cht_chip_info, SND_SOC_SOF_BAYTRAIL);
/* BYTCR uses different IRQ index */
static const struct sof_dev_desc sof_acpi_baytrailcr_desc = {
.machines = snd_soc_acpi_intel_baytrail_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = 2,
.irqindex_host_ipc = 0,
.chip_info = &byt_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-byt.ri",
.nocodec_tplg_filename = "sof-byt-nocodec.tplg",
.ops = &sof_byt_ops,
};
static const struct sof_dev_desc sof_acpi_baytrail_desc = {
.machines = snd_soc_acpi_intel_baytrail_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = 2,
.irqindex_host_ipc = 5,
.chip_info = &byt_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-byt.ri",
.nocodec_tplg_filename = "sof-byt-nocodec.tplg",
.ops = &sof_byt_ops,
};
static const struct sof_dev_desc sof_acpi_cherrytrail_desc = {
.machines = snd_soc_acpi_intel_cherrytrail_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = 2,
.irqindex_host_ipc = 5,
.chip_info = &cht_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-cht.ri",
.nocodec_tplg_filename = "sof-cht-nocodec.tplg",
.ops = &sof_cht_ops,
};
static const struct acpi_device_id sof_baytrail_match[] = {
{ "80860F28", (unsigned long)&sof_acpi_baytrail_desc },
{ "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc },
{ }
};
MODULE_DEVICE_TABLE(acpi, sof_baytrail_match);
static int sof_baytrail_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct sof_dev_desc *desc;
const struct acpi_device_id *id;
int ret;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
ret = snd_intel_acpi_dsp_driver_probe(dev, id->id);
if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) {
dev_dbg(dev, "SOF ACPI driver not selected, aborting probe\n");
return -ENODEV;
}
desc = device_get_match_data(&pdev->dev);
if (!desc)
return -ENODEV;
if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev))
desc = &sof_acpi_baytrailcr_desc;
return sof_acpi_probe(pdev, desc);
}
/* acpi_driver definition */
static struct platform_driver snd_sof_acpi_intel_byt_driver = {
.probe = sof_baytrail_probe,
.remove = sof_acpi_remove,
.driver = {
.name = "sof-audio-acpi-intel-byt",
.pm = &sof_acpi_pm,
.acpi_match_table = sof_baytrail_match,
},
};
module_platform_driver(snd_sof_acpi_intel_byt_driver);
#endif /* CONFIG_SND_SOC_SOF_BAYTRAIL */
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HIFI_EP_IPC);
MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
MODULE_IMPORT_NS(SND_SOC_SOF_ACPI_DEV);

6
sound/soc/sof/intel/shim.h
View File

@ -167,13 +167,7 @@ struct sof_intel_dsp_desc {
};
extern const struct snd_sof_dsp_ops sof_tng_ops;
extern const struct snd_sof_dsp_ops sof_byt_ops;
extern const struct snd_sof_dsp_ops sof_cht_ops;
extern const struct snd_sof_dsp_ops sof_bdw_ops;
extern const struct sof_intel_dsp_desc byt_chip_info;
extern const struct sof_intel_dsp_desc cht_chip_info;
extern const struct sof_intel_dsp_desc bdw_chip_info;
extern const struct sof_intel_dsp_desc tng_chip_info;
struct sof_intel_stream {

130
sound/soc/sof/sof-acpi-dev.c
View File

@ -12,12 +12,12 @@
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <sound/intel-dsp-config.h>
#include <sound/soc-acpi.h>
#include <sound/soc-acpi-intel-match.h>
#include <sound/sof.h>
#include "../intel/common/soc-intel-quirks.h"
#include "ops.h"
#include "sof-acpi-dev.h"
/* platform specific devices */
#include "intel/shim.h"
@ -36,74 +36,12 @@ MODULE_PARM_DESC(sof_acpi_debug, "SOF ACPI debug options (0x0 all off)");
#define SOF_ACPI_DISABLE_PM_RUNTIME BIT(0)
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
static const struct sof_dev_desc sof_acpi_broadwell_desc = {
.machines = snd_soc_acpi_intel_broadwell_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = -1,
.irqindex_host_ipc = 0,
.chip_info = &bdw_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-bdw.ri",
.nocodec_tplg_filename = "sof-bdw-nocodec.tplg",
.ops = &sof_bdw_ops,
};
#endif
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
/* BYTCR uses different IRQ index */
static const struct sof_dev_desc sof_acpi_baytrailcr_desc = {
.machines = snd_soc_acpi_intel_baytrail_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = 2,
.irqindex_host_ipc = 0,
.chip_info = &byt_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-byt.ri",
.nocodec_tplg_filename = "sof-byt-nocodec.tplg",
.ops = &sof_byt_ops,
};
static const struct sof_dev_desc sof_acpi_baytrail_desc = {
.machines = snd_soc_acpi_intel_baytrail_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = 2,
.irqindex_host_ipc = 5,
.chip_info = &byt_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-byt.ri",
.nocodec_tplg_filename = "sof-byt-nocodec.tplg",
.ops = &sof_byt_ops,
};
static const struct sof_dev_desc sof_acpi_cherrytrail_desc = {
.machines = snd_soc_acpi_intel_cherrytrail_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = 1,
.resindex_imr_base = 2,
.irqindex_host_ipc = 5,
.chip_info = &cht_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-cht.ri",
.nocodec_tplg_filename = "sof-cht-nocodec.tplg",
.ops = &sof_cht_ops,
};
#endif
static const struct dev_pm_ops sof_acpi_pm = {
const struct dev_pm_ops sof_acpi_pm = {
SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
snd_sof_runtime_idle)
};
EXPORT_SYMBOL_NS(sof_acpi_pm, SND_SOC_SOF_ACPI_DEV);
static void sof_acpi_probe_complete(struct device *dev)
{
@ -118,41 +56,19 @@ static void sof_acpi_probe_complete(struct device *dev)
pm_runtime_enable(dev);
}
static int sof_acpi_probe(struct platform_device *pdev)
int sof_acpi_probe(struct platform_device *pdev, const struct sof_dev_desc *desc)
{
struct device *dev = &pdev->dev;
const struct acpi_device_id *id;
const struct sof_dev_desc *desc;
struct snd_sof_pdata *sof_pdata;
const struct snd_sof_dsp_ops *ops;
int ret;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
if (IS_REACHABLE(CONFIG_SND_INTEL_DSP_CONFIG)) {
ret = snd_intel_acpi_dsp_driver_probe(dev, id->id);
if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) {
dev_dbg(dev, "SOF ACPI driver not selected, aborting probe\n");
return -ENODEV;
}
}
dev_dbg(dev, "ACPI DSP detected");
sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
if (!sof_pdata)
return -ENOMEM;
desc = device_get_match_data(dev);
if (!desc)
return -ENODEV;
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev))
desc = &sof_acpi_baytrailcr_desc;
#endif
/* get ops for platform */
ops = desc->ops;
if (!ops) {
@ -194,44 +110,20 @@ static int sof_acpi_probe(struct platform_device *pdev)
return ret;
}
EXPORT_SYMBOL_NS(sof_acpi_probe, SND_SOC_SOF_ACPI_DEV);
static int sof_acpi_remove(struct platform_device *pdev)
int sof_acpi_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME))
pm_runtime_disable(&pdev->dev);
pm_runtime_disable(dev);
/* call sof helper for DSP hardware remove */
snd_sof_device_remove(&pdev->dev);
snd_sof_device_remove(dev);
return 0;
}
#ifdef CONFIG_ACPI
static const struct acpi_device_id sof_acpi_match[] = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
{ "INT3438", (unsigned long)&sof_acpi_broadwell_desc },
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
{ "80860F28", (unsigned long)&sof_acpi_baytrail_desc },
{ "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc },
#endif
{ }
};
MODULE_DEVICE_TABLE(acpi, sof_acpi_match);
#endif
/* acpi_driver definition */
static struct platform_driver snd_sof_acpi_driver = {
.probe = sof_acpi_probe,
.remove = sof_acpi_remove,
.driver = {
.name = "sof-audio-acpi",
.pm = &sof_acpi_pm,
.acpi_match_table = ACPI_PTR(sof_acpi_match),
},
};
module_platform_driver(snd_sof_acpi_driver);
EXPORT_SYMBOL_NS(sof_acpi_remove, SND_SOC_SOF_ACPI_DEV);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS(SND_SOC_SOF_BAYTRAIL);
MODULE_IMPORT_NS(SND_SOC_SOF_BROADWELL);

16
sound/soc/sof/sof-acpi-dev.h 100644
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@ -0,0 +1,16 @@
/* 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) 2021 Intel Corporation. All rights reserved.
*/
#ifndef __SOUND_SOC_SOF_ACPI_H
#define __SOUND_SOC_SOF_ACPI_H
extern const struct dev_pm_ops sof_acpi_pm;
int sof_acpi_probe(struct platform_device *pdev, const struct sof_dev_desc *desc);
int sof_acpi_remove(struct platform_device *pdev);
#endif