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ASoC: Enable WM8990 ADC clocking workaround

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Enable a hardware workaround which avoids problems with the clocking of
the ADCs in certain configurations.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2008-11-17 17:09:34 +00:00
parent ba533e95b9
commit be1b87c70a
2 changed files with 6 additions and 4 deletions
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6
sound/soc/codecs/wm8990.c
View file

@ -1272,9 +1272,11 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
wm8990_write(codec, WM8990_ANTIPOP2, WM8990_BUFIOEN);
} else {
/* ON -> standby */
/* Enable workaround for ADC clocking issue. */
wm8990_write(codec, WM8990_EXT_ACCESS_ENA, 0x2);
wm8990_write(codec, WM8990_EXT_CTL1, 0xa003);
wm8990_write(codec, WM8990_EXT_ACCESS_ENA, 0);
}
break;

4
sound/soc/codecs/wm8990.h
View file

@ -80,8 +80,8 @@
#define WM8990_PLL3 0x3E
#define WM8990_INTDRIVBITS 0x3F
#define WM8990_REGISTER_COUNT 60
#define WM8990_MAX_REGISTER 0x3F
#define WM8990_EXT_ACCESS_ENA 0x75
#define WM8990_EXT_CTL1 0x7a
/*
* Field Definitions.