This patch adds support for parsing dt for AudioReach based soundcards which only have backend DAI links in DT.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/sm8250.c | 144 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 143 insertions(+), 1 deletion(-)
diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c index fe8fd7367e21..421f9d1d2bed 100644 --- a/sound/soc/qcom/sm8250.c +++ b/sound/soc/qcom/sm8250.c @@ -20,6 +20,141 @@ struct sm8250_snd_data { struct sdw_stream_runtime *sruntime[AFE_PORT_MAX]; };
+static int qcom_audioreach_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; + 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) { + dev_err(dev, "Error parsing card name: %d\n", ret); + return ret; + } + + /* 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; + } + + /* Populate links */ + num_links = of_get_child_count(dev->of_node); + + /* Allocate the DAI link array */ + 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, "%s: Can't find cpu DT node\n", link->name); + ret = -EINVAL; + goto err; + } + + if (!platform) { + dev_err(dev, "%s: Can't find platform DT node\n", link->name); + ret = -EINVAL; + goto err; + } + + if (!codec) { + dev_err(dev, "%s: Can't find codec DT node\n", link->name); + ret = -EINVAL; + goto err; + } + + ret = of_parse_phandle_with_args(cpu, "sound-dai", "#sound-dai-cells", 0, &args); + if (ret) { + dev_err(card->dev, "%s: error getting cpu phandle\n", link->name); + goto err; + } + + link->cpus->of_node = args.np; + link->id = args.args[0]; + + ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(card->dev, "%s: error getting cpu dai name: %d\n", + link->name, ret); + goto err; + } + + link->platforms->of_node = of_parse_phandle(platform, "sound-dai", 0); + if (!link->platforms->of_node) { + dev_err(card->dev, "%s: platform dai not found\n", link->name); + ret = -EINVAL; + goto err; + } + + ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); + if (ret < 0) { + if (ret != -EPROBE_DEFER) + dev_err(card->dev, "%s: codec dai not found: %d\n", + link->name, ret); + goto err; + } + + /* DPCM backend */ + link->no_pcm = 1; + link->ignore_pmdown_time = 1; + link->ignore_suspend = 1; + + link->stream_name = link->name; + snd_soc_dai_link_set_capabilities(link); + link++; + + of_node_put(cpu); + of_node_put(codec); + of_node_put(platform); + + } + + return 0; +err: + of_node_put(cpu); + of_node_put(codec); + of_node_put(platform); +err_put_np: + of_node_put(np); + return ret; +} + static int sm8250_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { @@ -199,7 +334,12 @@ static int sm8250_platform_probe(struct platform_device *pdev) card->dev = dev; dev_set_drvdata(dev, card); snd_soc_card_set_drvdata(card, data); - ret = qcom_snd_parse_of(card); + if (of_device_is_compatible(dev->of_node, "qcom,sm8250-audioreach-sndcard") || + of_device_is_compatible(dev->of_node, "qcom,qrb5165-rb5-audioreach-sndcard")) + ret = qcom_audioreach_snd_parse_of(card); + else + ret = qcom_snd_parse_of(card); + if (ret) return ret;
@@ -211,6 +351,8 @@ static int sm8250_platform_probe(struct platform_device *pdev) static const struct of_device_id snd_sm8250_dt_match[] = { {.compatible = "qcom,sm8250-sndcard"}, {.compatible = "qcom,qrb5165-rb5-sndcard"}, + {.compatible = "qcom,sm8250-audioreach-sndcard" }, + {.compatible = "qcom,qrb5165-rb5-audioreach-sndcard" }, {} };