summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/wm8962.c
diff options
context:
space:
mode:
authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-09-29 13:24:35 -0700
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-09-30 09:36:13 -0700
commita4f28c001d9fbe378852771c0734af4f7798d3c0 (patch)
treec556ecd9f97b2a91492434d0c94a7daa7eca9471 /sound/soc/codecs/wm8962.c
parentdee0bb9d0fef4535cc52df84b5165cbe2db383d7 (diff)
ASoC: Provide microphone bias configuration for WM8962
Add the widget for MICBIAS power control and allow configuration of the microphone bias setup via the platform data for the WM8962. When microphone status signals are brought out to GPIO this should be sufficient to enable microphone detection. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/codecs/wm8962.c')
-rw-r--r--sound/soc/codecs/wm8962.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 4fa5de873c8b..be34146a775b 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -630,6 +630,8 @@ SND_SOC_DAPM_INPUT("IN4L"),
SND_SOC_DAPM_INPUT("IN4R"),
SND_SOC_DAPM_INPUT("Beep"),
+SND_SOC_DAPM_MICBIAS("MICBIAS", WM8962_PWR_MGMT_1, 1, 0),
+
SND_SOC_DAPM_SUPPLY("Class G", WM8962_CHARGE_PUMP_B, 0, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, sysclk_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
@@ -1755,6 +1757,16 @@ static int wm8962_probe(struct snd_soc_codec *codec)
if (pdata->spk_mono)
wm8962->reg_cache[WM8962_CLASS_D_CONTROL_2]
|= WM8962_SPK_MONO;
+
+ /* Micbias setup, detection enable and detection
+ * threasholds. */
+ if (pdata->mic_cfg)
+ snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_4,
+ WM8962_MICDET_ENA |
+ WM8962_MICDET_THR_MASK |
+ WM8962_MICSHORT_THR_MASK |
+ WM8962_MICBIAS_LVL,
+ pdata->mic_cfg);
}
/* Latch volume update bits */