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Diffstat (limited to 'sound/soc/atmel/atmel-i2s.c')
-rw-r--r--sound/soc/atmel/atmel-i2s.c46
1 files changed, 7 insertions, 39 deletions
diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index 5d3b5af9fd92..d88c1d995036 100644
--- a/sound/soc/atmel/atmel-i2s.c
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -206,7 +206,6 @@ struct atmel_i2s_dev {
struct regmap *regmap;
struct clk *pclk;
struct clk *gclk;
- struct clk *aclk;
struct snd_dmaengine_dai_dma_data playback;
struct snd_dmaengine_dai_dma_data capture;
unsigned int fmt;
@@ -303,7 +302,7 @@ static int atmel_i2s_get_gck_param(struct atmel_i2s_dev *dev, int fs)
{
int i, best;
- if (!dev->gclk || !dev->aclk) {
+ if (!dev->gclk) {
dev_err(dev->dev, "cannot generate the I2S Master Clock\n");
return -EINVAL;
}
@@ -421,7 +420,7 @@ static int atmel_i2s_switch_mck_generator(struct atmel_i2s_dev *dev,
bool enabled)
{
unsigned int mr, mr_mask;
- unsigned long aclk_rate;
+ unsigned long gclk_rate;
int ret;
mr = 0;
@@ -445,35 +444,18 @@ static int atmel_i2s_switch_mck_generator(struct atmel_i2s_dev *dev,
/* Disable/unprepare the PMC generated clock. */
clk_disable_unprepare(dev->gclk);
- /* Disable/unprepare the PLL audio clock. */
- clk_disable_unprepare(dev->aclk);
return 0;
}
if (!dev->gck_param)
return -EINVAL;
- aclk_rate = dev->gck_param->mck * (dev->gck_param->imckdiv + 1);
+ gclk_rate = dev->gck_param->mck * (dev->gck_param->imckdiv + 1);
- /* Fist change the PLL audio clock frequency ... */
- ret = clk_set_rate(dev->aclk, aclk_rate);
+ ret = clk_set_rate(dev->gclk, gclk_rate);
if (ret)
return ret;
- /*
- * ... then set the PMC generated clock rate to the very same frequency
- * to set the gclk parent to aclk.
- */
- ret = clk_set_rate(dev->gclk, aclk_rate);
- if (ret)
- return ret;
-
- /* Prepare and enable the PLL audio clock first ... */
- ret = clk_prepare_enable(dev->aclk);
- if (ret)
- return ret;
-
- /* ... then prepare and enable the PMC generated clock. */
ret = clk_prepare_enable(dev->gclk);
if (ret)
return ret;
@@ -668,28 +650,14 @@ static int atmel_i2s_probe(struct platform_device *pdev)
return err;
}
- /* Get audio clocks to generate the I2S Master Clock (I2S_MCK) */
- dev->aclk = devm_clk_get(&pdev->dev, "aclk");
+ /* Get audio clock to generate the I2S Master Clock (I2S_MCK) */
dev->gclk = devm_clk_get(&pdev->dev, "gclk");
- if (IS_ERR(dev->aclk) && IS_ERR(dev->gclk)) {
- if (PTR_ERR(dev->aclk) == -EPROBE_DEFER ||
- PTR_ERR(dev->gclk) == -EPROBE_DEFER)
+ if (IS_ERR(dev->gclk)) {
+ if (PTR_ERR(dev->gclk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
/* Master Mode not supported */
- dev->aclk = NULL;
dev->gclk = NULL;
- } else if (IS_ERR(dev->gclk)) {
- err = PTR_ERR(dev->gclk);
- dev_err(&pdev->dev,
- "failed to get the PMC generated clock: %d\n", err);
- return err;
- } else if (IS_ERR(dev->aclk)) {
- err = PTR_ERR(dev->aclk);
- dev_err(&pdev->dev,
- "failed to get the PLL audio clock: %d\n", err);
- return err;
}
-
dev->dev = &pdev->dev;
dev->regmap = regmap;
platform_set_drvdata(pdev, dev);