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ASoC: Dynamically manage CLK_SYS in WM8903

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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2011-02-09 17:42:56 +00:00
parent 13a9983eb1
commit 2c8be5a26e
1 changed files with 12 additions and 3 deletions
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15
sound/soc/codecs/wm8903.c
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@ -860,10 +860,18 @@ SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
};
static const struct snd_soc_dapm_route intercon[] = {
{ "CLK_DSP", NULL, "CLK_SYS" },
{ "Mic Bias", NULL, "CLK_SYS" },
{ "HPL_DCS", NULL, "CLK_SYS" },
{ "HPR_DCS", NULL, "CLK_SYS" },
{ "LINEOUTL_DCS", NULL, "CLK_SYS" },
{ "LINEOUTR_DCS", NULL, "CLK_SYS" },
{ "Left Input Mux", "IN1L", "IN1L" },
{ "Left Input Mux", "IN2L", "IN2L" },
{ "Left Input Mux", "IN3L", "IN3L" },
@ -1059,10 +1067,11 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_OFF:
snd_soc_update_bits(codec, WM8903_CLOCK_RATES_2,
WM8903_CLK_SYS_ENA, WM8903_CLK_SYS_ENA);
wm8903_run_sequence(codec, 32);
reg = snd_soc_read(codec, WM8903_CLOCK_RATES_2);
reg &= ~WM8903_CLK_SYS_ENA;
snd_soc_write(codec, WM8903_CLOCK_RATES_2, reg);
snd_soc_update_bits(codec, WM8903_CLOCK_RATES_2,
WM8903_CLK_SYS_ENA, 0);
break;
}