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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
* Synopsys DesignWare eDMA core driver
*
* Author: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
*/
#ifndef _DW_EDMA_H
#define _DW_EDMA_H
#include <linux/device.h>
#include <linux/dmaengine.h>
struct dw_edma;
/**
* struct dw_edma_chip - representation of DesignWare eDMA controller hardware
* @dev: struct device of the eDMA controller
* @id: instance ID
* @irq: irq line
* @dw: struct dw_edma that is filed by dw_edma_probe()
*/
struct dw_edma_chip {
struct device *dev;
int id;
int irq;
struct dw_edma *dw;
};
/* Export to the platform drivers */
#if IS_ENABLED(CONFIG_DW_EDMA)
int dw_edma_probe(struct dw_edma_chip *chip);
int dw_edma_remove(struct dw_edma_chip *chip);
#else
static inline int dw_edma_probe(struct dw_edma_chip *chip)
{
return -ENODEV;
}
static inline int dw_edma_remove(struct dw_edma_chip *chip)
{
return 0;
}
#endif /* CONFIG_DW_EDMA */
#endif /* _DW_EDMA_H */
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