*/
#include <linux/clk.h>
+#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/module.h>
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;
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)
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;
-
+ /* 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->sclk_i2s = of_clk_get_by_name(link->cpu_of_node, "i2s_opclk1");
+ 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_i2s_n;
+ goto err_put_codec_n;
}
- priv->clk_i2s_bus = of_clk_get_by_name(link->cpu_of_node, "iis");
+ 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) {
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;
}
{
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);
projects / platform / kernel / linux-exynos.git / blobdiff