a47979b5aa
Add clock enable and disable calls to resume and suspend respectively. Also add a member to the audio device data structure which tracks the clock status. Tested on DA850/OMAP-L138 EVM. For the purpose of testing, the patches[1] which add suspend-to-RAM support to DA850/OMAP-L138 SoC were applied. [1] http://linux.davincidsp.com/pipermail/davinci-linux-open-source/ 2009-November/016958.html Signed-off-by: Chaithrika U S <chaithrika@ti.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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* ALSA SoC McASP Audio Layer for TI DAVINCI processor
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*
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* MCASP related definitions
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*
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* Author: Nirmal Pandey <n-pandey@ti.com>,
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* Suresh Rajashekara <suresh.r@ti.com>
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* Steve Chen <schen@.mvista.com>
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*
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* Copyright: (C) 2009 MontaVista Software, Inc., <source@mvista.com>
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* Copyright: (C) 2009 Texas Instruments, India
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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 DAVINCI_MCASP_H
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#define DAVINCI_MCASP_H
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#include <linux/io.h>
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#include <mach/asp.h>
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#include "davinci-pcm.h"
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extern struct snd_soc_dai davinci_mcasp_dai[];
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#define DAVINCI_MCASP_RATES SNDRV_PCM_RATE_8000_96000
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#define DAVINCI_MCASP_I2S_DAI 0
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#define DAVINCI_MCASP_DIT_DAI 1
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enum {
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DAVINCI_AUDIO_WORD_8 = 0,
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DAVINCI_AUDIO_WORD_12,
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DAVINCI_AUDIO_WORD_16,
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DAVINCI_AUDIO_WORD_20,
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DAVINCI_AUDIO_WORD_24,
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DAVINCI_AUDIO_WORD_32,
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DAVINCI_AUDIO_WORD_28, /* This is only valid for McASP */
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};
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struct davinci_audio_dev {
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struct davinci_pcm_dma_params dma_params[2];
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void __iomem *base;
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int sample_rate;
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struct clk *clk;
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unsigned int codec_fmt;
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u8 clk_active;
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/* McASP specific data */
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int tdm_slots;
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u8 op_mode;
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u8 num_serializer;
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u8 *serial_dir;
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u8 version;
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/* McASP FIFO related */
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u8 txnumevt;
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u8 rxnumevt;
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};
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#endif /* DAVINCI_MCASP_H */
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