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ASoC: loongson: Factor out loongson_card_acpi_find_device() function

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The operations for reading the cpu and codec nodes in
loongson_card_parse_acpi() are similar, so we convert them into a simple
helper function called loongson_card_acpi_find_device().

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://patch.msgid.link/3b7da05e5fd4326e7944aa749bf06dd44e964f6c.1725844530.git.zhoubinbin@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Binbin Zhou 2024-09-09 15:19:37 +08:00 committed by Mark Brown
parent c7b626a893
commit ddb538a300
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GPG Key ID: 24D68B725D5487D0
1 changed files with 31 additions and 24 deletions
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55
sound/soc/loongson/loongson_card.c
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@ -68,46 +68,53 @@ static struct snd_soc_dai_link loongson_dai_links[] = {
},
};
static struct acpi_device *loongson_card_acpi_find_device(struct snd_soc_card *card,
const char *name)
{
struct fwnode_handle *fwnode = card->dev->fwnode;
struct fwnode_reference_args args;
int status;
memset(&args, 0, sizeof(args));
status = acpi_node_get_property_reference(fwnode, name, 0, &args);
if (status || !is_acpi_device_node(args.fwnode)) {
dev_err(card->dev, "No matching phy in ACPI table\n");
return NULL;
}
return to_acpi_device_node(args.fwnode);
}
static int loongson_card_parse_acpi(struct loongson_card_data *data)
{
struct snd_soc_card *card = &data->snd_card;
struct fwnode_handle *fwnode = card->dev->fwnode;
struct fwnode_reference_args args;
const char *codec_dai_name;
struct acpi_device *adev;
struct device *phy_dev;
int ret, i;
int i;
/* fixup platform name based on reference node */
memset(&args, 0, sizeof(args));
ret = acpi_node_get_property_reference(fwnode, "cpu", 0, &args);
if (ret || !is_acpi_device_node(args.fwnode)) {
dev_err(card->dev, "No matching phy in ACPI table\n");
return ret ?: -ENOENT;
}
adev = to_acpi_device_node(args.fwnode);
adev = loongson_card_acpi_find_device(card, "cpu");
if (!adev)
return -ENOENT;
phy_dev = acpi_get_first_physical_node(adev);
if (!phy_dev)
return -EPROBE_DEFER;
for (i = 0; i < card->num_links; i++)
loongson_dai_links[i].platforms->name = dev_name(phy_dev);
/* fixup codec name based on reference node */
memset(&args, 0, sizeof(args));
ret = acpi_node_get_property_reference(fwnode, "codec", 0, &args);
if (ret || !is_acpi_device_node(args.fwnode)) {
dev_err(card->dev, "No matching phy in ACPI table\n");
return ret ?: -ENOENT;
}
adev = to_acpi_device_node(args.fwnode);
adev = loongson_card_acpi_find_device(card, "codec");
if (!adev)
return -ENOENT;
snprintf(codec_name, sizeof(codec_name), "i2c-%s", acpi_dev_name(adev));
for (i = 0; i < card->num_links; i++)
loongson_dai_links[i].codecs->name = codec_name;
device_property_read_string(card->dev, "codec-dai-name",
&codec_dai_name);
for (i = 0; i < card->num_links; i++)
device_property_read_string(card->dev, "codec-dai-name", &codec_dai_name);
for (i = 0; i < card->num_links; i++) {
loongson_dai_links[i].platforms->name = dev_name(phy_dev);
loongson_dai_links[i].codecs->name = codec_name;
loongson_dai_links[i].codecs->dai_name = codec_dai_name;
}
return 0;
}