linux-stable/sound/soc/davinci/edma-pcm.c
Lars-Peter Clausen 371e07ec83 ASoC: edma-pcm: Include edma-pcm.h
edma_pcm_platform_register() is declared in edma-pcm.h and defined in
edma-pcm.c. To make sure that the function signature matches for both
edma-pcm.c should include edma-pcm.h

Fixes the following sparse warning:
	sound/soc/davinci/edma-pcm.c:48:5: warning: symbol
	 'edma_pcm_platform_register' was not declared. Should it be static?

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-17 09:31:06 -05:00

59 lines
1.8 KiB
C

/*
* edma-pcm.c - eDMA PCM driver using dmaengine for AM3xxx, AM4xxx
*
* Copyright (C) 2014 Texas Instruments, Inc.
*
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*
* Based on: sound/soc/tegra/tegra_pcm.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
#include <linux/edma.h>
#include "edma-pcm.h"
static const struct snd_pcm_hardware edma_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
SNDRV_PCM_INFO_INTERLEAVED,
.buffer_bytes_max = 128 * 1024,
.period_bytes_min = 32,
.period_bytes_max = 64 * 1024,
.periods_min = 2,
.periods_max = 19, /* Limit by edma dmaengine driver */
};
static const struct snd_dmaengine_pcm_config edma_dmaengine_pcm_config = {
.pcm_hardware = &edma_pcm_hardware,
.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
.compat_filter_fn = edma_filter_fn,
.prealloc_buffer_size = 128 * 1024,
};
int edma_pcm_platform_register(struct device *dev)
{
return devm_snd_dmaengine_pcm_register(dev, &edma_dmaengine_pcm_config,
SND_DMAENGINE_PCM_FLAG_COMPAT);
}
EXPORT_SYMBOL_GPL(edma_pcm_platform_register);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_DESCRIPTION("eDMA PCM ASoC platform driver");
MODULE_LICENSE("GPL");