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Commit | Line | Data |
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3d588f83 AS |
1 | /* |
2 | * Driver for the Synopsys DesignWare DMA Controller | |
3 | * | |
4 | * Copyright (C) 2007 Atmel Corporation | |
5 | * Copyright (C) 2010-2011 ST Microelectronics | |
2a52f6e4 | 6 | * Copyright (C) 2014 Intel Corporation |
3d588f83 AS |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | #ifndef _DMA_DW_H | |
13 | #define _DMA_DW_H | |
14 | ||
2a52f6e4 AS |
15 | #include <linux/clk.h> |
16 | #include <linux/device.h> | |
3d588f83 AS |
17 | #include <linux/dmaengine.h> |
18 | ||
2a52f6e4 AS |
19 | #include <linux/platform_data/dma-dw.h> |
20 | ||
21 | struct dw_dma; | |
22 | ||
23 | /** | |
24 | * struct dw_dma_chip - representation of DesignWare DMA controller hardware | |
25 | * @dev: struct device of the DMA controller | |
08d62f58 | 26 | * @id: instance ID |
2a52f6e4 AS |
27 | * @irq: irq line |
28 | * @regs: memory mapped I/O space | |
29 | * @clk: hclk clock | |
30 | * @dw: struct dw_dma that is filed by dw_dma_probe() | |
3a14c66d | 31 | * @pdata: pointer to platform data |
2a52f6e4 AS |
32 | */ |
33 | struct dw_dma_chip { | |
34 | struct device *dev; | |
08d62f58 | 35 | int id; |
2a52f6e4 AS |
36 | int irq; |
37 | void __iomem *regs; | |
38 | struct clk *clk; | |
39 | struct dw_dma *dw; | |
3a14c66d AS |
40 | |
41 | const struct dw_dma_platform_data *pdata; | |
2a52f6e4 AS |
42 | }; |
43 | ||
44 | /* Export to the platform drivers */ | |
19d82910 | 45 | #if IS_ENABLED(CONFIG_DW_DMAC_CORE) |
3a14c66d | 46 | int dw_dma_probe(struct dw_dma_chip *chip); |
2a52f6e4 | 47 | int dw_dma_remove(struct dw_dma_chip *chip); |
19d82910 AS |
48 | #else |
49 | static inline int dw_dma_probe(struct dw_dma_chip *chip) { return -ENODEV; } | |
50 | static inline int dw_dma_remove(struct dw_dma_chip *chip) { return 0; } | |
51 | #endif /* CONFIG_DW_DMAC_CORE */ | |
2a52f6e4 | 52 | |
3d588f83 | 53 | #endif /* _DMA_DW_H */ |