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ASoC: qcom: Add support to parse common audio device nodes
This adds support to parse cpu, platform and codec device nodes and add them in dai-links. Also, update apq8096 machine driver to use the common API. Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Rohit kumar <rohitkr@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // SPDX-License-Identifier: GPL-2.0 | ||
| // Copyright (c) 2018, Linaro Limited. | ||
| // Copyright (c) 2018, The Linux Foundation. All rights reserved. | ||
|
|
||
| #include <linux/module.h> | ||
| #include "common.h" | ||
|
|
||
| int qcom_snd_parse_of(struct snd_soc_card *card) | ||
| { | ||
| struct device_node *np; | ||
| struct device_node *codec = NULL; | ||
| struct device_node *platform = NULL; | ||
| struct device_node *cpu = NULL; | ||
| struct device *dev = card->dev; | ||
| struct snd_soc_dai_link *link; | ||
| int ret, num_links; | ||
|
|
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| ret = snd_soc_of_parse_card_name(card, "model"); | ||
| if (ret) { | ||
| dev_err(dev, "Error parsing card name: %d\n", ret); | ||
| return ret; | ||
| } | ||
|
|
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| /* DAPM routes */ | ||
| if (of_property_read_bool(dev->of_node, "audio-routing")) { | ||
| ret = snd_soc_of_parse_audio_routing(card, | ||
| "audio-routing"); | ||
| if (ret) | ||
| return ret; | ||
| } | ||
|
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| /* Populate links */ | ||
| num_links = of_get_child_count(dev->of_node); | ||
|
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| /* Allocate the DAI link array */ | ||
| card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL); | ||
| if (!card->dai_link) | ||
| return -ENOMEM; | ||
|
|
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| card->num_links = num_links; | ||
| link = card->dai_link; | ||
| for_each_child_of_node(dev->of_node, np) { | ||
| cpu = of_get_child_by_name(np, "cpu"); | ||
| if (!cpu) { | ||
| dev_err(dev, "Can't find cpu DT node\n"); | ||
| ret = -EINVAL; | ||
| goto err; | ||
| } | ||
|
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| link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0); | ||
| if (!link->cpu_of_node) { | ||
| dev_err(card->dev, "error getting cpu phandle\n"); | ||
| ret = -EINVAL; | ||
| goto err; | ||
| } | ||
|
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| ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name); | ||
| if (ret) { | ||
| dev_err(card->dev, "error getting cpu dai name\n"); | ||
| goto err; | ||
| } | ||
|
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||
| platform = of_get_child_by_name(np, "platform"); | ||
| codec = of_get_child_by_name(np, "codec"); | ||
| if (codec && platform) { | ||
| link->platform_of_node = of_parse_phandle(platform, | ||
| "sound-dai", | ||
| 0); | ||
| if (!link->platform_of_node) { | ||
| dev_err(card->dev, "platform dai not found\n"); | ||
| ret = -EINVAL; | ||
| goto err; | ||
| } | ||
|
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| ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); | ||
| if (ret < 0) { | ||
| dev_err(card->dev, "codec dai not found\n"); | ||
| goto err; | ||
| } | ||
| 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"; | ||
| link->dynamic = 1; | ||
| } | ||
|
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||
| 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; | ||
| } | ||
|
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| link->dpcm_playback = 1; | ||
| link->dpcm_capture = 1; | ||
| link->stream_name = link->name; | ||
| link++; | ||
| } | ||
|
|
||
| return 0; | ||
| err: | ||
| of_node_put(cpu); | ||
| of_node_put(codec); | ||
| of_node_put(platform); | ||
| kfree(card->dai_link); | ||
| return ret; | ||
| } | ||
| EXPORT_SYMBOL(qcom_snd_parse_of); | ||
|
|
||
| MODULE_LICENSE("GPL v2"); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| /* SPDX-License-Identifier: GPL-2.0 */ | ||
| // Copyright (c) 2018, The Linux Foundation. All rights reserved. | ||
|
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||
| #ifndef __QCOM_SND_COMMON_H__ | ||
| #define __QCOM_SND_COMMON_H__ | ||
|
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| #include <linux/component.h> | ||
| #include <sound/soc.h> | ||
|
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| int qcom_snd_parse_of(struct snd_soc_card *card); | ||
|
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||
| #endif |