mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.5 KiB
54 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* Driver for the Synopsys DesignWare DMA Controller |
|
* |
|
* Copyright (C) 2007 Atmel Corporation |
|
* Copyright (C) 2010-2011 ST Microelectronics |
|
* Copyright (C) 2014 Intel Corporation |
|
*/ |
|
#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 */ |
|
#if IS_ENABLED(CONFIG_DW_DMAC_CORE) |
|
int dw_dma_probe(struct dw_dma_chip *chip); |
|
int dw_dma_remove(struct dw_dma_chip *chip); |
|
int idma32_dma_probe(struct dw_dma_chip *chip); |
|
int idma32_dma_remove(struct dw_dma_chip *chip); |
|
#else |
|
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; } |
|
static inline int idma32_dma_probe(struct dw_dma_chip *chip) { return -ENODEV; } |
|
static inline int idma32_dma_remove(struct dw_dma_chip *chip) { return 0; } |
|
#endif /* CONFIG_DW_DMAC_CORE */ |
|
|
|
#endif /* _DMA_DW_H */
|
|
|