blob: e166cac8e870e50f95927fe988b0e6213929b1f6 [file] [log] [blame]
* Driver for the Synopsys DesignWare DMA Controller
* Copyright (C) 2007 Atmel Corporation
* Copyright (C) 2010-2011 ST Microelectronics
* Copyright (C) 2014 Intel Corporation
* 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.
#ifndef _DMA_DW_H
#define _DMA_DW_H
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dmaengine.h>
#include <linux/platform_data/dma-dw.h>
struct dw_dma;
* struct dw_dma_chip - representation of DesignWare DMA controller hardware
* @dev: struct device of the DMA controller
* @id: instance ID
* @irq: irq line
* @regs: memory mapped I/O space
* @clk: hclk clock
* @dw: struct dw_dma that is filed by dw_dma_probe()
* @pdata: pointer to platform data
struct dw_dma_chip {
struct device *dev;
int id;
int irq;
void __iomem *regs;
struct clk *clk;
struct dw_dma *dw;
const struct dw_dma_platform_data *pdata;
/* Export to the platform drivers */
int dw_dma_probe(struct dw_dma_chip *chip);
int dw_dma_remove(struct dw_dma_chip *chip);
static inline int dw_dma_probe(struct dw_dma_chip *chip) { return -ENODEV; }
static inline int dw_dma_remove(struct dw_dma_chip *chip) { return 0; }
#endif /* CONFIG_DW_DMAC_CORE */
#endif /* _DMA_DW_H */