1 // SPDX-License-Identifier: GPL-2.0
3 // Loongson ASoC Audio Machine driver
5 // Copyright (C) 2023 Loongson Technology Corporation Limited
6 // Author: Yingkun Meng <mengyingkun@loongson.cn>
11 #include <sound/soc-acpi.h>
27 	struct loongson_card_data *ls_card = snd_soc_card_get_drvdata(rtd->card);  in loongson_card_hw_params()
32 	if (!ls_card->mclk_fs)  in loongson_card_hw_params()
35 	mclk = ls_card->mclk_fs * params_rate(params);  in loongson_card_hw_params()
38 		dev_err(codec_dai->dev, "cpu_dai clock not set\n");  in loongson_card_hw_params()
44 		dev_err(codec_dai->dev, "codec_dai clock not set\n");  in loongson_card_hw_params()
56 	DAILINK_COMP_ARRAY(COMP_CPU("loongson-i2s")),
62 		.name = "Loongson Audio Port",
63 		.stream_name = "Loongson Audio",
74 	struct fwnode_handle *fwnode = card->dev->fwnode;  in loongson_card_acpi_find_device()
81 		dev_err(card->dev, "No matching phy in ACPI table\n");  in loongson_card_acpi_find_device()
90 	struct snd_soc_card *card = &data->snd_card;  in loongson_card_parse_acpi()
99 		return -ENOENT;  in loongson_card_parse_acpi()
103 		return -EPROBE_DEFER;  in loongson_card_parse_acpi()
108 		return -ENOENT;  in loongson_card_parse_acpi()
109 	snprintf(codec_name, sizeof(codec_name), "i2c-%s", acpi_dev_name(adev));  in loongson_card_parse_acpi()
111 	device_property_read_string(card->dev, "codec-dai-name", &codec_dai_name);  in loongson_card_parse_acpi()
113 	for (i = 0; i < card->num_links; i++) {  in loongson_card_parse_acpi()
114 		loongson_dai_links[i].platforms->name = dev_name(phy_dev);  in loongson_card_parse_acpi()
115 		loongson_dai_links[i].codecs->name = codec_name;  in loongson_card_parse_acpi()
116 		loongson_dai_links[i].codecs->dai_name = codec_dai_name;  in loongson_card_parse_acpi()
125 	struct snd_soc_card *card = &data->snd_card;  in loongson_card_parse_of()
126 	struct device *dev = card->dev;  in loongson_card_parse_of()
129 	cpu = of_get_child_by_name(dev->of_node, "cpu");  in loongson_card_parse_of()
132 		return -EINVAL;  in loongson_card_parse_of()
134 	codec = of_get_child_by_name(dev->of_node, "codec");  in loongson_card_parse_of()
136 		dev_err(dev, "audio-codec property missing or invalid\n");  in loongson_card_parse_of()
138 		return -EINVAL;  in loongson_card_parse_of()
141 	for (i = 0; i < card->num_links; i++) {  in loongson_card_parse_of()
147 		loongson_dai_links[i].platforms->of_node = loongson_dai_links[i].cpus->of_node;  in loongson_card_parse_of()
170 	struct device *dev = &pdev->dev;  in loongson_asoc_card_probe()
176 		return -ENOMEM;  in loongson_asoc_card_probe()
178 	card = &ls_priv->snd_card;  in loongson_asoc_card_probe()
180 	card->dev = dev;  in loongson_asoc_card_probe()
181 	card->owner = THIS_MODULE;  in loongson_asoc_card_probe()
182 	card->dai_link = loongson_dai_links;  in loongson_asoc_card_probe()
183 	card->num_links = ARRAY_SIZE(loongson_dai_links);  in loongson_asoc_card_probe()
186 	ret = device_property_read_string(dev, "model", &card->name);  in loongson_asoc_card_probe()
190 	ret = device_property_read_u32(dev, "mclk-fs", &ls_priv->mclk_fs);  in loongson_asoc_card_probe()
192 		return dev_err_probe(dev, ret, "Error parsing mclk-fs\n");  in loongson_asoc_card_probe()
203 	{ .compatible = "loongson,ls-audio-card" },
211 		.name = "loongson-asoc-card",
218 MODULE_DESCRIPTION("Loongson ASoc Sound Card driver");
219 MODULE_AUTHOR("Loongson Technology Corporation Limited");