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ASoC: exynos: Issues with the EPLL clock in daisy_max98095.

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This commit is contained in:
Humberto Silva Naves
2014-07-13 04:59:26 +02:00
parent 6a27266d18
commit c127918db2
1 changed files with 32 additions and 8 deletions
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40
sound/soc/samsung/daisy_max98095.c
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@@ -54,7 +54,7 @@
static int set_audio_clock_hierarchy(struct platform_device *pdev)
{
struct clk *fout_epll, *sclk_epll, *mout_audio0, *sclk_audio0;
struct clk *mout_audss, *mout_i2s;
struct clk *mout_audss, *mout_i2s, *dout_srp, *dout_bus;
int ret = 0;
fout_epll = clk_get(&pdev->dev, "fout_epll");
@@ -101,6 +101,22 @@ static int set_audio_clock_hierarchy(struct platform_device *pdev)
goto out5;
}
dout_srp = clk_get(&pdev->dev, "dout_srp");
if (IS_ERR(dout_srp)) {
printk(KERN_WARNING
"%s: Cannot find dout_srp clocks.\n", __func__);
ret = -EINVAL;
goto out6;
}
dout_bus = clk_get(&pdev->dev, "dout_bus");
if (IS_ERR(dout_bus)) {
printk(KERN_WARNING
"%s: Cannot find dout_bus clocks.\n", __func__);
ret = -EINVAL;
goto out7;
}
/*
* fout_epll may have been initialized to operate at a frequency higher
* than the audio block's maximum (192Mhz on 5250, 200Mhz on 5420),
@@ -112,29 +128,29 @@ static int set_audio_clock_hierarchy(struct platform_device *pdev)
ret = clk_set_rate(fout_epll, DEFAULT_EPLL_RATE);
if (ret < 0) {
printk(KERN_WARNING "Failed to set epll rate.\n");
goto out6;
goto out8;
}
/* Set audio clock hierarchy for S/PDIF */
ret = clk_set_parent(sclk_epll, fout_epll);
if (ret < 0) {
printk(KERN_WARNING "Failed to set parent of epll.\n");
goto out6;
goto out8;
}
ret = clk_set_parent(mout_audio0, sclk_epll);
if (ret < 0) {
printk(KERN_WARNING "Failed to set parent of mout audio0.\n");
goto out6;
goto out8;
}
ret = clk_set_parent(mout_audss, fout_epll);
if (ret < 0) {
printk(KERN_WARNING "Failed to set parent of audss.\n");
goto out6;
goto out8;
}
ret = clk_set_parent(mout_i2s, sclk_audio0);
if (ret < 0) {
printk(KERN_WARNING "Failed to set parent of mout i2s.\n");
goto out6;
goto out8;
}
/* Ensure that the divider between mout_audio0 and sclk_audio0 is 1. */
@@ -143,6 +159,14 @@ static int set_audio_clock_hierarchy(struct platform_device *pdev)
printk(KERN_WARNING "Failed to set audio bus rate (%d).\n",
ret);
clk_set_rate(dout_srp, DEFAULT_EPLL_RATE / 2);
clk_set_rate(dout_bus, DEFAULT_EPLL_RATE / 4);
clk_set_rate(fout_epll, 200000000);
out8:
clk_put(dout_bus);
out7:
clk_put(dout_srp);
out6:
clk_put(mout_i2s);
out5:
@@ -174,11 +198,11 @@ static int set_epll_rate(struct device *card_dev, unsigned long rate)
if (rate == clk_get_rate(fout_epll))
goto out;
ret = clk_set_rate(fout_epll, rate);
/* ret = clk_set_rate(fout_epll, rate);
if (ret < 0) {
printk(KERN_ERR "failed to clk_set_rate of fout_epll for audio\n");
goto out;
}
} */
out:
clk_put(fout_epll);