diff options
Diffstat (limited to 'include/linux/dma/dw.h')
| -rw-r--r-- | include/linux/dma/dw.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/dma/dw.h b/include/linux/dma/dw.h index 24756130eadb..71456442ebe3 100644 --- a/include/linux/dma/dw.h +++ b/include/linux/dma/dw.h @@ -3,6 +3,7 @@ * * 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 @@ -11,8 +12,34 @@ #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 + * @irq: irq line + * @regs: memory mapped I/O space + * @clk: hclk clock + * @dw: struct dw_dma that is filed by dw_dma_probe() + */ +struct dw_dma_chip { + struct device *dev; + int irq; + void __iomem *regs; + struct clk *clk; + struct dw_dma *dw; +}; + +/* Export to the platform drivers */ +int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata); +int dw_dma_remove(struct dw_dma_chip *chip); + /* DMA API extensions */ struct dw_desc; |