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When the system returns from suspend, it looses its configuration. Most of it is restored by running a normal audio stream startup, but the DAI format is left unset as that's configured on the audio device creation. Hence, it suffices here to care for the registers which are touched by davinci_mcasp_set_dai_fmt() and restore them when the system is resumed. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
60 lines
1.3 KiB
C
60 lines
1.3 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 <linux/platform_data/davinci_asp.h>
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#include "davinci-pcm.h"
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#define DAVINCI_MCASP_RATES SNDRV_PCM_RATE_8000_192000
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#define DAVINCI_MCASP_I2S_DAI 0
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#define DAVINCI_MCASP_DIT_DAI 1
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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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struct device *dev;
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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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u16 bclk_lrclk_ratio;
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/* McASP FIFO related */
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u8 txnumevt;
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u8 rxnumevt;
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#ifdef CONFIG_PM_SLEEP
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struct {
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u32 txfmtctl;
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u32 rxfmtctl;
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u32 txfmt;
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u32 rxfmt;
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u32 aclkxctl;
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u32 aclkrctl;
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u32 pdir;
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} context;
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#endif
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};
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#endif /* DAVINCI_MCASP_H */
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