linux_dsm_epyc7002/sound/soc/omap/sdma-pcm.h
Peter Ujfalusi dde637f2da
ASoC: omap: Introduce the generic_dmaengine_pcm based sdma-pcm
With the generic dmaengine_pcm support the omap-cpm can be replaced with a
much smaller wrapper.

CPU DAI drivers can use the:
int sdma_pcm_platform_register(struct device *dev,
			       char *txdmachan, char *rxdmachan);

To register the platform driver, txdmachan/rxdmachan is only needed to be
provided if the DMA channel names are not standard tx/rx, like in case of
McPDM, or the DAI is only capable of one audio direction (DMIC, HDMI).

This patch only introduces the source file and changes to the
Kconfig/Makefile, but does not change any of the DAI drivers to use it.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-05-09 18:22:00 +09:00

22 lines
549 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*/
#ifndef __SDMA_PCM_H__
#define __SDMA_PCM_H__
#if IS_ENABLED(CONFIG_SND_SDMA_SOC)
int sdma_pcm_platform_register(struct device *dev,
char *txdmachan, char *rxdmachan);
#else
static inline int sdma_pcm_platform_register(struct device *dev,
char *txdmachan, char *rxdmachan)
{
return -ENODEV;
}
#endif /* CONFIG_SND_SDMA_SOC */
#endif /* __SDMA_PCM_H__ */