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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-02-09 17:42:56 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-02-09 22:50:03 +0000
commit2c8be5a26e42cfc4906c4daa8a5a5c82610ddb3d (patch)
tree9c4e98a996220b1eb948b27524a5309a7e074d60 /sound
parent13a9983eb197254dffd9ea63a2d5f12c54eb651c (diff)
downloadlinux-2c8be5a26e42cfc4906c4daa8a5a5c82610ddb3d.tar.bz2
ASoC: Dynamically manage CLK_SYS in WM8903
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/wm8903.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 9793775d5798..389d2e8088f2 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -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;
}