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Commit be1b87c7 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Enable WM8990 ADC clocking workaround 



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

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent ba533e95

sound/soc/codecs/wm8990.c

+4 −2
Original line number Diff line number Diff line
@@ -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;

sound/soc/codecs/wm8990.h

+2 −2
Original line number Diff line number Diff line
@@ -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.