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ASoC: Ensure sane WM835x AIF configuration by default 

Ensure that whatever ran before us leaves the WM835x with a sane default
audio interface configuration as we do not override the companding,
loopback or tristate settings and do not reset the chip at startup (as it
is a PMIC).

Reported-by: Keiji Mitsuhisa <Keiji.Mitsuhisa@wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2010-11-09 14:38:58 +00:00
parent c28a9926f2
commit 0049317edb
1 changed files with 7 additions and 0 deletions
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7
sound/soc/codecs/wm8350.c
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@ -1586,6 +1586,13 @@ static int wm8350_codec_probe(struct snd_soc_codec *codec)
wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME,
WM8350_OUT2_VU | WM8350_OUT2R_MUTE);
/* Make sure AIF tristating is disabled by default */
wm8350_clear_bits(wm8350, WM8350_AI_FORMATING, WM8350_AIF_TRI);
/* Make sure we've got a sane companding setup too */
wm8350_clear_bits(wm8350, WM8350_ADC_DAC_COMP,
WM8350_DAC_COMP | WM8350_LOOPBACK);
/* Make sure jack detect is disabled to start off with */
wm8350_clear_bits(wm8350, WM8350_JACK_DETECT,
WM8350_JDL_ENA | WM8350_JDR_ENA);