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Diffstat (limited to 'sound/soc/samsung/odroid.c')
-rw-r--r--sound/soc/samsung/odroid.c44
1 files changed, 30 insertions, 14 deletions
diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c
index 0834319ead42..44b6de5a331a 100644
--- a/sound/soc/samsung/odroid.c
+++ b/sound/soc/samsung/odroid.c
@@ -19,8 +19,8 @@ struct odroid_priv {
struct snd_soc_card card;
struct snd_soc_dai_link dai_link;
- struct clk *pll;
- struct clk *rclk;
+ struct clk *clk_i2s_bus;
+ struct clk *sclk_i2s;
};
static int odroid_card_startup(struct snd_pcm_substream *substream)
@@ -58,13 +58,18 @@ static int odroid_card_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
- ret = clk_set_rate(priv->pll, pll_freq + 1);
+ ret = clk_set_rate(priv->clk_i2s_bus, pll_freq / 2 + 1);
if (ret < 0)
return ret;
- rclk_freq = params_rate(params) * 256 * 4;
+ /*
+ * We add 1 to the rclk_freq value in order to avoid too low clock
+ * frequency values due to the EPLL output frequency not being exact
+ * multiple of the audio sampling rate.
+ */
+ rclk_freq = params_rate(params) * 256 + 1;
- ret = clk_set_rate(priv->rclk, rclk_freq);
+ ret = clk_set_rate(priv->sclk_i2s, rclk_freq);
if (ret < 0)
return ret;
@@ -118,14 +123,6 @@ static int odroid_audio_probe(struct platform_device *pdev)
snd_soc_card_set_drvdata(card, priv);
- priv->pll = devm_clk_get(dev, "epll");
- if (IS_ERR(priv->pll))
- return PTR_ERR(priv->pll);
-
- priv->rclk = devm_clk_get(dev, "i2s_rclk");
- if (IS_ERR(priv->rclk))
- return PTR_ERR(priv->rclk);
-
ret = snd_soc_of_parse_card_name(card, "model");
if (ret < 0)
return ret;
@@ -171,14 +168,31 @@ static int odroid_audio_probe(struct platform_device *pdev)
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;
+ }
+
+ priv->clk_i2s_bus = of_clk_get_by_name(link->cpu_of_node, "iis");
+ if (IS_ERR(priv->clk_i2s_bus)) {
+ ret = PTR_ERR(priv->clk_i2s_bus);
+ goto err_put_sclk;
+ }
+
ret = devm_snd_soc_register_card(dev, card);
if (ret < 0) {
dev_err(dev, "snd_soc_register_card() failed: %d\n", ret);
- goto err_put_i2s_n;
+ goto err_put_clk_i2s;
}
return 0;
+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:
@@ -192,6 +206,8 @@ static int odroid_audio_remove(struct platform_device *pdev)
of_node_put(priv->dai_link.cpu_of_node);
odroid_put_codec_of_nodes(&priv->dai_link);
+ clk_put(priv->sclk_i2s);
+ clk_put(priv->clk_i2s_bus);
return 0;
}