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yaml
---
r: 270876
b: refs/heads/master
c: 79d0726
h: refs/heads/master
v: v3
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Axel Lin authored and Mark Brown committed Oct 14, 2011
1 parent 1988d4c commit 180057b
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Showing 2 changed files with 28 additions and 41 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 790f932500061ce49c52ef9dbd48fbfbdeb631c5
refs/heads/master: 79d07265137c166cf298d74a29038a76458ec46a
67 changes: 27 additions & 40 deletions trunk/sound/soc/codecs/wm8990.c
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Original file line number Diff line number Diff line change
Expand Up @@ -981,32 +981,29 @@ static void pll_factors(struct _pll_div *pll_div, unsigned int target,
static int wm8990_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
int source, unsigned int freq_in, unsigned int freq_out)
{
u16 reg;
struct snd_soc_codec *codec = codec_dai->codec;
struct _pll_div pll_div;

if (freq_in && freq_out) {
pll_factors(&pll_div, freq_out * 4, freq_in);

/* Turn on PLL */
reg = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_2);
reg |= WM8990_PLL_ENA;
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_2, reg);
snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
WM8990_PLL_ENA, WM8990_PLL_ENA);

/* sysclk comes from PLL */
reg = snd_soc_read(codec, WM8990_CLOCKING_2);
snd_soc_write(codec, WM8990_CLOCKING_2, reg | WM8990_SYSCLK_SRC);
snd_soc_update_bits(codec, WM8990_CLOCKING_2,
WM8990_SYSCLK_SRC, WM8990_SYSCLK_SRC);

/* set up N , fractional mode and pre-divisor if necessary */
snd_soc_write(codec, WM8990_PLL1, pll_div.n | WM8990_SDM |
(pll_div.div2?WM8990_PRESCALE:0));
snd_soc_write(codec, WM8990_PLL2, (u8)(pll_div.k>>8));
snd_soc_write(codec, WM8990_PLL3, (u8)(pll_div.k & 0xFF));
} else {
/* Turn on PLL */
reg = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_2);
reg &= ~WM8990_PLL_ENA;
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_2, reg);
/* Turn off PLL */
snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
WM8990_PLL_ENA, 0);
}
return 0;
}
Expand Down Expand Up @@ -1084,28 +1081,23 @@ static int wm8990_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
int div_id, int div)
{
struct snd_soc_codec *codec = codec_dai->codec;
u16 reg;

switch (div_id) {
case WM8990_MCLK_DIV:
reg = snd_soc_read(codec, WM8990_CLOCKING_2) &
~WM8990_MCLK_DIV_MASK;
snd_soc_write(codec, WM8990_CLOCKING_2, reg | div);
snd_soc_update_bits(codec, WM8990_CLOCKING_2,
WM8990_MCLK_DIV_MASK, div);
break;
case WM8990_DACCLK_DIV:
reg = snd_soc_read(codec, WM8990_CLOCKING_2) &
~WM8990_DAC_CLKDIV_MASK;
snd_soc_write(codec, WM8990_CLOCKING_2, reg | div);
snd_soc_update_bits(codec, WM8990_CLOCKING_2,
WM8990_DAC_CLKDIV_MASK, div);
break;
case WM8990_ADCCLK_DIV:
reg = snd_soc_read(codec, WM8990_CLOCKING_2) &
~WM8990_ADC_CLKDIV_MASK;
snd_soc_write(codec, WM8990_CLOCKING_2, reg | div);
snd_soc_update_bits(codec, WM8990_CLOCKING_2,
WM8990_ADC_CLKDIV_MASK, div);
break;
case WM8990_BCLK_DIV:
reg = snd_soc_read(codec, WM8990_CLOCKING_1) &
~WM8990_BCLK_DIV_MASK;
snd_soc_write(codec, WM8990_CLOCKING_1, reg | div);
snd_soc_update_bits(codec, WM8990_CLOCKING_1,
WM8990_BCLK_DIV_MASK, div);
break;
default:
return -EINVAL;
Expand Down Expand Up @@ -1164,17 +1156,15 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
int ret;
u16 val;

switch (level) {
case SND_SOC_BIAS_ON:
break;

case SND_SOC_BIAS_PREPARE:
/* VMID=2*50k */
val = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_1) &
~WM8990_VMID_MODE_MASK;
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x2);
snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_1,
WM8990_VMID_MODE_MASK, 0x2);
break;

case SND_SOC_BIAS_STANDBY:
Expand Down Expand Up @@ -1239,9 +1229,8 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
}

/* VMID=2*250k */
val = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_1) &
~WM8990_VMID_MODE_MASK;
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x4);
snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_1,
WM8990_VMID_MODE_MASK, 0x4);
break;

case SND_SOC_BIAS_OFF:
Expand All @@ -1255,8 +1244,8 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
WM8990_BUFIOEN);

/* mute DAC */
val = snd_soc_read(codec, WM8990_DAC_CTRL);
snd_soc_write(codec, WM8990_DAC_CTRL, val | WM8990_DAC_MUTE);
snd_soc_update_bits(codec, WM8990_DAC_CTRL,
WM8990_DAC_MUTE, WM8990_DAC_MUTE);

/* Enable any disabled outputs */
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_1, 0x1f03);
Expand Down Expand Up @@ -1344,7 +1333,6 @@ static int wm8990_resume(struct snd_soc_codec *codec)
static int wm8990_probe(struct snd_soc_codec *codec)
{
int ret;
u16 reg;

ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
if (ret < 0) {
Expand All @@ -1357,15 +1345,14 @@ static int wm8990_probe(struct snd_soc_codec *codec)
/* charge output caps */
wm8990_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

reg = snd_soc_read(codec, WM8990_AUDIO_INTERFACE_4);
snd_soc_write(codec, WM8990_AUDIO_INTERFACE_4, reg | WM8990_ALRCGPIO1);
snd_soc_update_bits(codec, WM8990_AUDIO_INTERFACE_4,
WM8990_ALRCGPIO1, WM8990_ALRCGPIO1);

reg = snd_soc_read(codec, WM8990_GPIO1_GPIO2) &
~WM8990_GPIO1_SEL_MASK;
snd_soc_write(codec, WM8990_GPIO1_GPIO2, reg | 1);
snd_soc_update_bits(codec, WM8990_GPIO1_GPIO2,
WM8990_GPIO1_SEL_MASK, 1);

reg = snd_soc_read(codec, WM8990_POWER_MANAGEMENT_2);
snd_soc_write(codec, WM8990_POWER_MANAGEMENT_2, reg | WM8990_OPCLK_ENA);
snd_soc_update_bits(codec, WM8990_POWER_MANAGEMENT_2,
WM8990_OPCLK_ENA, WM8990_OPCLK_ENA);

snd_soc_write(codec, WM8990_LEFT_OUTPUT_VOLUME, 0x50 | (1<<8));
snd_soc_write(codec, WM8990_RIGHT_OUTPUT_VOLUME, 0x50 | (1<<8));
Expand Down

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