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