extern void aml_spdif_play(void);
static void aml_dai_i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->channels == 8 || IEC958_mode_codec == 0) {
aml_spdif_play();
printk("alloc aml_runtime_data error\n");
ret = -ENOMEM;
goto out;
}
prtd->substream = substream;
runtime->private_data = prtd;
}
s = &prtd->s;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
s->device_type = AML_AUDIO_SPDIFOUT;
audio_spdifout_pg_enable(1);
/* aml_spdif_play_stop(); */
} else {
s->device_type = AML_AUDIO_SPDIFIN;
}
return 0;
out:
return ret;
}
static int aml_dai_spdif_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
return 0;
}
static int aml_dai_spdif_probe(struct platform_device *pdev)
{
int i, ret;
struct reset_control *spdif_reset;
struct aml_spdif *spdif_priv;
pr_info("aml_spdif_probe\n");
/* enable spdif power gate first */
for (i = 0; i < ARRAY_SIZE(gate_names); i++) {
spdif_reset = devm_reset_control_get(&pdev->dev, gate_names[i]);
if (IS_ERR(spdif_reset)) {
dev_err(&pdev->dev, "Can't get aml audio gate\n");
return PTR_ERR(spdif_reset);
}
reset_control_deassert(spdif_reset);
}
spdif_priv = devm_kzalloc(&pdev->dev,
sizeof(struct aml_spdif), GFP_KERNEL);
if (!spdif_priv) {
dev_err(&pdev->dev, "Can't allocate spdif_priv\n");
ret = -ENOMEM;
goto err;
}
dev_set_drvdata(&pdev->dev, spdif_priv);
spdif_p = spdif_priv;
spdif_priv->clk_mpl1 = devm_clk_get(&pdev->dev, "mpll1");
if (IS_ERR(spdif_priv->clk_mpl1)) {
dev_err(&pdev->dev, "Can't retrieve mpll1 clock\n");
ret = PTR_ERR(spdif_priv->clk_mpl1);
goto err;
}
spdif_priv->clk_i958 = devm_clk_get(&pdev->dev, "i958");
if (IS_ERR(spdif_priv->clk_i958)) {
dev_err(&pdev->dev, "Can't retrieve spdif clk_i958 clock\n");
ret = PTR_ERR(spdif_priv->clk_i958);
goto err;
}
spdif_priv->clk_mclk = devm_clk_get(&pdev->dev, "mclk");
if (IS_ERR(spdif_priv->clk_mclk)) {
dev_err(&pdev->dev, "Can't retrieve spdif clk_mclk clock\n");
ret = PTR_ERR(spdif_priv->clk_mclk);
goto err;
}
spdif_priv->clk_spdif = devm_clk_get(&pdev->dev, "spdif");
if (IS_ERR(spdif_priv->clk_spdif)) {
dev_err(&pdev->dev, "Can't retrieve spdif clock\n");
ret = PTR_ERR(spdif_priv->clk_spdif);
goto err;
}
ret = clk_set_parent(spdif_priv->clk_i958, spdif_priv->clk_mpl1);
if (ret) {
pr_err("Can't set i958 clk parent: %d\n", ret);
return ret;
}
ret = clk_set_parent(spdif_priv->clk_spdif, spdif_priv->clk_i958);
if (ret) {
pr_err("Can't set spdif clk parent: %d\n", ret);
return ret;
}
ret = clk_prepare_enable(spdif_priv->clk_spdif);
if (ret) {
pr_err("Can't enable spdif clock: %d\n", ret);
goto err;
}
aml_spdif_play();
ret = snd_soc_register_component(&pdev->dev, &aml_component,
aml_spdif_dai,
ARRAY_SIZE(aml_spdif_dai));
if (ret) {
pr_err("Can't register spdif dai: %d\n", ret);
goto err_clk_dis;
}
return 0;
err_clk_dis:
clk_disable_unprepare(spdif_priv->clk_spdif);
err:
return ret;
}
