From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/sound/soc/qcom/common.c | 105 +++++++++++++++++++++++++++++++++++++++-------------
1 files changed, 78 insertions(+), 27 deletions(-)
diff --git a/kernel/sound/soc/qcom/common.c b/kernel/sound/soc/qcom/common.c
index 5661025..09af007 100644
--- a/kernel/sound/soc/qcom/common.c
+++ b/kernel/sound/soc/qcom/common.c
@@ -14,9 +14,13 @@
struct device *dev = card->dev;
struct snd_soc_dai_link *link;
struct of_phandle_args args;
+ struct snd_soc_dai_link_component *dlc;
int ret, num_links;
ret = snd_soc_of_parse_card_name(card, "model");
+ if (ret == 0 && !card->name)
+ /* Deprecated, only for compatibility with old device trees */
+ ret = snd_soc_of_parse_card_name(card, "qcom,model");
if (ret) {
dev_err(dev, "Error parsing card name: %d\n", ret);
return ret;
@@ -24,29 +28,57 @@
/* DAPM routes */
if (of_property_read_bool(dev->of_node, "audio-routing")) {
- ret = snd_soc_of_parse_audio_routing(card,
- "audio-routing");
+ ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
if (ret)
return ret;
}
+ /* Deprecated, only for compatibility with old device trees */
+ if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
+ ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
+ if (ret)
+ return ret;
+ }
+
+ ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
+ if (ret)
+ return ret;
/* Populate links */
num_links = of_get_child_count(dev->of_node);
/* Allocate the DAI link array */
- card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
+ card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
if (!card->dai_link)
return -ENOMEM;
card->num_links = num_links;
link = card->dai_link;
+
for_each_child_of_node(dev->of_node, np) {
+ dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
+ if (!dlc) {
+ ret = -ENOMEM;
+ goto err_put_np;
+ }
+
+ link->cpus = &dlc[0];
+ link->platforms = &dlc[1];
+
+ link->num_cpus = 1;
+ link->num_platforms = 1;
+
+ ret = of_property_read_string(np, "link-name", &link->name);
+ if (ret) {
+ dev_err(card->dev, "error getting codec dai_link name\n");
+ goto err_put_np;
+ }
+
cpu = of_get_child_by_name(np, "cpu");
platform = of_get_child_by_name(np, "platform");
codec = of_get_child_by_name(np, "codec");
if (!cpu) {
- dev_err(dev, "Can't find cpu DT node\n");
+ dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
ret = -EINVAL;
goto err;
}
@@ -54,51 +86,70 @@
ret = of_parse_phandle_with_args(cpu, "sound-dai",
"#sound-dai-cells", 0, &args);
if (ret) {
- dev_err(card->dev, "error getting cpu phandle\n");
+ dev_err(card->dev, "%s: error getting cpu phandle\n", link->name);
goto err;
}
- link->cpu_of_node = args.np;
+ link->cpus->of_node = args.np;
link->id = args.args[0];
- ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
+ ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
if (ret) {
- dev_err(card->dev, "error getting cpu dai name\n");
+ if (ret != -EPROBE_DEFER)
+ dev_err(card->dev, "%s: error getting cpu dai name: %d\n",
+ link->name, ret);
goto err;
}
- if (codec && platform) {
- link->platform_of_node = of_parse_phandle(platform,
+ if (platform) {
+ link->platforms->of_node = of_parse_phandle(platform,
"sound-dai",
0);
- if (!link->platform_of_node) {
- dev_err(card->dev, "platform dai not found\n");
+ if (!link->platforms->of_node) {
+ dev_err(card->dev, "%s: platform dai not found\n", link->name);
ret = -EINVAL;
goto err;
}
+ } else {
+ link->platforms->of_node = link->cpus->of_node;
+ }
+ if (codec) {
ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
if (ret < 0) {
- dev_err(card->dev, "codec dai not found\n");
+ if (ret != -EPROBE_DEFER)
+ dev_err(card->dev, "%s: codec dai not found: %d\n",
+ link->name, ret);
goto err;
}
- link->no_pcm = 1;
- link->ignore_pmdown_time = 1;
+
+ if (platform) {
+ /* DPCM backend */
+ link->no_pcm = 1;
+ link->ignore_pmdown_time = 1;
+ }
} else {
- link->platform_of_node = link->cpu_of_node;
- link->codec_dai_name = "snd-soc-dummy-dai";
- link->codec_name = "snd-soc-dummy";
+ /* DPCM frontend */
+ dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
+ if (!dlc) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ link->codecs = dlc;
+ link->num_codecs = 1;
+
+ link->codecs->dai_name = "snd-soc-dummy-dai";
+ link->codecs->name = "snd-soc-dummy";
link->dynamic = 1;
}
- link->ignore_suspend = 1;
- ret = of_property_read_string(np, "link-name", &link->name);
- if (ret) {
- dev_err(card->dev, "error getting codec dai_link name\n");
- goto err;
+ if (platform || !codec) {
+ /* DPCM */
+ snd_soc_dai_link_set_capabilities(link);
+ link->ignore_suspend = 1;
+ link->nonatomic = 1;
}
- link->dpcm_playback = 1;
- link->dpcm_capture = 1;
link->stream_name = link->name;
link++;
@@ -109,11 +160,11 @@
return 0;
err:
- of_node_put(np);
of_node_put(cpu);
of_node_put(codec);
of_node_put(platform);
- kfree(card->dai_link);
+err_put_np:
+ of_node_put(np);
return ret;
}
EXPORT_SYMBOL(qcom_snd_parse_of);
--
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