diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c index e7b371b07230..18bb3bfe0300 100644 --- a/sound/soc/samsung/odroid.c +++ b/sound/soc/samsung/odroid.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -17,21 +18,24 @@ struct odroid_priv { struct snd_soc_card card; - struct snd_soc_dai_link dai_link; - struct clk *clk_i2s_bus; struct clk *sclk_i2s; }; -static int odroid_card_startup(struct snd_pcm_substream *substream) +static int odroid_card_fe_startup(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2); + return 0; } -static int odroid_card_hw_params(struct snd_pcm_substream *substream, +static const struct snd_soc_ops odroid_card_fe_ops = { + .startup = odroid_card_fe_startup, +}; + +static int odroid_card_be_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -86,19 +90,55 @@ static int odroid_card_hw_params(struct snd_pcm_substream *substream, return 0; } -static const struct snd_soc_ops odroid_card_ops = { - .startup = odroid_card_startup, - .hw_params = odroid_card_hw_params, +static const struct snd_soc_ops odroid_card_be_ops = { + .hw_params = odroid_card_be_hw_params, +}; + +static struct snd_soc_dai_link odroid_card_dais[] = { + { + /* Primary FE <-> BE link */ + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .ops = &odroid_card_fe_ops, + .name = "Primary", + .stream_name = "Primary", + .platform_name = "3830000.i2s", + .dynamic = 1, + .dpcm_playback = 1, + }, { + /* BE <-> CODECs link */ + .name = "I2S Mixer", + .cpu_name = "snd-soc-dummy", + .cpu_dai_name = "snd-soc-dummy-dai", + .platform_name = "snd-soc-dummy", + .ops = &odroid_card_be_ops, + .no_pcm = 1, + .dpcm_playback = 1, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + }, { + /* Secondary FE <-> BE link */ + .playback_only = 1, + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .ops = &odroid_card_fe_ops, + .name = "Secondary", + .stream_name = "Secondary", + .platform_name = "samsung-i2s-sec", + .dynamic = 1, + .dpcm_playback = 1, + } }; static int odroid_audio_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *cpu, *codec; + struct device_node *cpu, *cpu_dai, *codec; struct odroid_priv *priv; - struct snd_soc_dai_link *link; struct snd_soc_card *card; - int ret; + struct snd_soc_dai_link *link, *codec_link; + int num_pcms, ret, i; + struct of_phandle_args args = {}; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -130,45 +170,67 @@ static int odroid_audio_probe(struct platform_device *pdev) return ret; } - link = &priv->dai_link; - - link->ops = &odroid_card_ops; - link->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_CBS_CFS; - - card->dai_link = &priv->dai_link; - card->num_links = 1; + card->dai_link = odroid_card_dais; + card->num_links = ARRAY_SIZE(odroid_card_dais); cpu = of_get_child_by_name(dev->of_node, "cpu"); codec = of_get_child_by_name(dev->of_node, "codec"); + link = card->dai_link; + codec_link = &card->dai_link[1]; - link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0); - if (!link->cpu_of_node) { - dev_err(dev, "Failed parsing cpu/sound-dai property\n"); - return -EINVAL; + /* + * For backwards compatibility create the secondary CPU DAI link only + * if there are 2 CPU DAI entries in the cpu sound-dai property in DT. + */ + num_pcms = of_count_phandle_with_args(cpu, "sound-dai", + "#sound-dai-cells"); + if (num_pcms == 1) + card->num_links--; + + for (i = 0; i < num_pcms; i++, link += 2) { + ret = of_parse_phandle_with_args(cpu, "sound-dai", + "#sound-dai-cells", i, &args); + if (ret < 0) + return ret; + + if (!args.np) { + dev_err(dev, "sound-dai property parse error: %d\n", ret); + return -EINVAL; + } + + ret = snd_soc_get_dai_name(&args, &link->cpu_dai_name); + of_node_put(args.np); + + if (ret < 0) + return ret; } - ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); + cpu_dai = of_parse_phandle(cpu, "sound-dai", 0); + of_node_put(cpu); + of_node_put(codec); + + ret = snd_soc_of_get_dai_link_codecs(dev, codec, codec_link); if (ret < 0) goto err_put_codec_n; - link->platform_of_node = link->cpu_of_node; - - link->name = "Primary"; - link->stream_name = link->name; - - - priv->sclk_i2s = of_clk_get_by_name(link->cpu_of_node, "i2s_opclk1"); - if (IS_ERR(priv->sclk_i2s)) { - ret = PTR_ERR(priv->sclk_i2s); - goto err_put_i2s_n; + /* Set capture capability only for boards with the MAX98090 CODEC */ + if (codec_link->num_codecs > 1) { + card->dai_link[0].dpcm_capture = 1; + card->dai_link[1].dpcm_capture = 1; } - priv->clk_i2s_bus = of_clk_get_by_name(link->cpu_of_node, "iis"); + priv->sclk_i2s = of_clk_get_by_name(cpu_dai, "i2s_opclk1"); + if (IS_ERR(priv->sclk_i2s)) { + ret = PTR_ERR(priv->sclk_i2s); + goto err_put_codec_n; + } + + priv->clk_i2s_bus = of_clk_get_by_name(cpu_dai, "iis"); if (IS_ERR(priv->clk_i2s_bus)) { ret = PTR_ERR(priv->clk_i2s_bus); goto err_put_sclk; } + of_node_put(cpu_dai); ret = devm_snd_soc_register_card(dev, card); if (ret < 0) { @@ -182,10 +244,8 @@ err_put_clk_i2s: clk_put(priv->clk_i2s_bus); err_put_sclk: clk_put(priv->sclk_i2s); -err_put_i2s_n: - of_node_put(link->cpu_of_node); err_put_codec_n: - snd_soc_of_put_dai_link_codecs(link); + snd_soc_of_put_dai_link_codecs(codec_link); return ret; } @@ -193,8 +253,7 @@ static int odroid_audio_remove(struct platform_device *pdev) { struct odroid_priv *priv = platform_get_drvdata(pdev); - of_node_put(priv->dai_link.cpu_of_node); - snd_soc_of_put_dai_link_codecs(&priv->dai_link); + snd_soc_of_put_dai_link_codecs(&priv->card.dai_link[1]); clk_put(priv->sclk_i2s); clk_put(priv->clk_i2s_bus);