1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2018, Linaro Limited.
3 // Copyright (c) 2018, The Linux Foundation. All rights reserved.
5 #include <linux/module.h>
7 #include "qdsp6/q6afe.h"
9 int qcom_snd_parse_of(struct snd_soc_card *card)
11 struct device_node *np;
12 struct device_node *codec = NULL;
13 struct device_node *platform = NULL;
14 struct device_node *cpu = NULL;
15 struct device *dev = card->dev;
16 struct snd_soc_dai_link *link;
17 struct of_phandle_args args;
18 struct snd_soc_dai_link_component *dlc;
21 ret = snd_soc_of_parse_card_name(card, "model");
23 dev_err(dev, "Error parsing card name: %d\n", ret);
28 if (of_property_read_bool(dev->of_node, "audio-routing")) {
29 ret = snd_soc_of_parse_audio_routing(card,
36 num_links = of_get_child_count(dev->of_node);
38 /* Allocate the DAI link array */
39 card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
43 card->num_links = num_links;
44 link = card->dai_link;
46 for_each_child_of_node(dev->of_node, np) {
47 dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
52 link->platforms = &dlc[1];
55 link->num_platforms = 1;
57 ret = of_property_read_string(np, "link-name", &link->name);
59 dev_err(card->dev, "error getting codec dai_link name\n");
63 cpu = of_get_child_by_name(np, "cpu");
64 platform = of_get_child_by_name(np, "platform");
65 codec = of_get_child_by_name(np, "codec");
68 dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
73 ret = of_parse_phandle_with_args(cpu, "sound-dai",
74 "#sound-dai-cells", 0, &args);
76 dev_err(card->dev, "%s: error getting cpu phandle\n", link->name);
79 link->cpus->of_node = args.np;
80 link->id = args.args[0];
82 ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
84 dev_err(card->dev, "%s: error getting cpu dai name\n", link->name);
88 if (codec && platform) {
89 link->platforms->of_node = of_parse_phandle(platform,
92 if (!link->platforms->of_node) {
93 dev_err(card->dev, "%s: platform dai not found\n", link->name);
98 ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
100 dev_err(card->dev, "%s: codec dai not found\n", link->name);
104 link->ignore_pmdown_time = 1;
106 if (q6afe_is_rx_port(link->id)) {
107 link->dpcm_playback = 1;
108 link->dpcm_capture = 0;
110 link->dpcm_playback = 0;
111 link->dpcm_capture = 1;
115 dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
120 link->num_codecs = 1;
122 link->platforms->of_node = link->cpus->of_node;
123 link->codecs->dai_name = "snd-soc-dummy-dai";
124 link->codecs->name = "snd-soc-dummy";
126 link->dpcm_playback = 1;
127 link->dpcm_capture = 1;
130 link->ignore_suspend = 1;
132 link->stream_name = link->name;
137 of_node_put(platform);
145 of_node_put(platform);
146 kfree(card->dai_link);
149 EXPORT_SYMBOL(qcom_snd_parse_of);
151 MODULE_LICENSE("GPL v2");