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ASoC: soc-utils: Transition to the faux device interface

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The ASoC soc-utils driver does not require the creation of a platform
device. Originally, this approach was chosen for simplicity when the
driver was first implemented.

With the introduction of the lightweight faux device interface, we now
have a more appropriate alternative. Migrate the driver to utilize the
faux bus, given that the platform device it previously created was not
a real one anyway. This will simplify the code, reducing its footprint
while maintaining functionality.

Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: linux-sound@vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/20250317-plat2faux_dev-v1-6-5fe67c085ad5@arm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sudeep Holla 2025-03-17 10:13:18 +00:00 committed by Mark Brown
parent 77ad261ecc
commit 18abb3797f
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GPG Key ID: 24D68B725D5487D0
1 changed files with 12 additions and 22 deletions
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34
sound/soc/soc-utils.c
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@ -7,7 +7,7 @@
// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
// Liam Girdwood <lrg@slimlogic.co.uk>
#include <linux/platform_device.h>
#include <linux/device/faux.h>
#include <linux/export.h>
#include <linux/math.h>
#include <sound/core.h>
@ -262,48 +262,38 @@ struct snd_soc_dai_link_component snd_soc_dummy_dlc = {
};
EXPORT_SYMBOL_GPL(snd_soc_dummy_dlc);
static int snd_soc_dummy_probe(struct platform_device *pdev)
static int snd_soc_dummy_probe(struct faux_device *fdev)
{
int ret;
ret = devm_snd_soc_register_component(&pdev->dev,
ret = devm_snd_soc_register_component(&fdev->dev,
&dummy_codec, &dummy_dai, 1);
if (ret < 0)
return ret;
ret = devm_snd_soc_register_component(&pdev->dev, &dummy_platform,
ret = devm_snd_soc_register_component(&fdev->dev, &dummy_platform,
NULL, 0);
return ret;
}
static struct platform_driver soc_dummy_driver = {
.driver = {
.name = "snd-soc-dummy",
},
static struct faux_device_ops soc_dummy_ops = {
.probe = snd_soc_dummy_probe,
};
static struct platform_device *soc_dummy_dev;
static struct faux_device *soc_dummy_dev;
int __init snd_soc_util_init(void)
{
int ret;
soc_dummy_dev = faux_device_create("snd-soc-dummy", NULL,
&soc_dummy_ops);
if (!soc_dummy_dev)
return -ENODEV;
soc_dummy_dev =
platform_device_register_simple("snd-soc-dummy", -1, NULL, 0);
if (IS_ERR(soc_dummy_dev))
return PTR_ERR(soc_dummy_dev);
ret = platform_driver_register(&soc_dummy_driver);
if (ret != 0)
platform_device_unregister(soc_dummy_dev);
return ret;
return 0;
}
void snd_soc_util_exit(void)
{
platform_driver_unregister(&soc_dummy_driver);
platform_device_unregister(soc_dummy_dev);
faux_device_destroy(soc_dummy_dev);
}