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The WM8994 can output a clock derived from its internal SYSCLK, called OPCLK. The rate can be selected as a sysclk, with a division from the SYSCLK rate specified (multiplied by 10 since a division of 5.5 is supported) and the clock can be disabled by specifying a divisor of zero. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
38 lines
992 B
C
38 lines
992 B
C
/*
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* wm8994.h -- WM8994 Soc Audio driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _WM8994_H
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#define _WM8994_H
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#include <sound/soc.h>
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extern struct snd_soc_codec_device soc_codec_dev_wm8994;
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extern struct snd_soc_dai wm8994_dai[];
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/* Sources for AIF1/2 SYSCLK - use with set_dai_sysclk() */
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#define WM8994_SYSCLK_MCLK1 1
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#define WM8994_SYSCLK_MCLK2 2
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#define WM8994_SYSCLK_FLL1 3
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#define WM8994_SYSCLK_FLL2 4
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/* OPCLK is also configured with set_dai_sysclk, specify division*10 as rate. */
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#define WM8994_SYSCLK_OPCLK 5
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#define WM8994_FLL1 1
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#define WM8994_FLL2 2
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#define WM8994_FLL_SRC_MCLK1 1
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#define WM8994_FLL_SRC_MCLK2 2
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#define WM8994_FLL_SRC_LRCLK 3
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#define WM8994_FLL_SRC_BCLK 4
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int wm8994_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
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int micbias, int det, int shrt);
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#endif
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