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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _MXS_DMA_H_
#define _MXS_DMA_H_
#include <linux/dmaengine.h>
#define MXS_DMA_CTRL_WAIT4END BIT(31)
#define MXS_DMA_CTRL_WAIT4RDY BIT(30)
/*
* The mxs dmaengine can do PIO transfers. We pass a pointer to the PIO words
* in the second argument to dmaengine_prep_slave_sg when the direction is
* set to DMA_TRANS_NONE. To make this clear and to prevent users from doing
* the error prone casting we have this wrapper function
*/
static inline struct dma_async_tx_descriptor *mxs_dmaengine_prep_pio(
struct dma_chan *chan, u32 *pio, unsigned int npio,
enum dma_transfer_direction dir, unsigned long flags)
{
return dmaengine_prep_slave_sg(chan, (struct scatterlist *)pio, npio,
dir, flags);
}
#endif /* _MXS_DMA_H_ */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| amd_xdma.h | File | 483 B | 0644 |
|
| dw.h | File | 1.49 KB | 0644 |
|
| edma.h | File | 3.23 KB | 0644 |
|
| hsu.h | File | 1.63 KB | 0644 |
|
| idma64.h | File | 310 B | 0644 |
|
| imx-dma.h | File | 3.42 KB | 0644 |
|
| k3-event-router.h | File | 317 B | 0644 |
|
| k3-psil.h | File | 2.39 KB | 0644 |
|
| k3-udma-glue.h | File | 5.67 KB | 0644 |
|
| mxs-dma.h | File | 798 B | 0644 |
|
| pxa-dma.h | File | 637 B | 0644 |
|
| qcom-gpi-dma.h | File | 1.65 KB | 0644 |
|
| qcom_adm.h | File | 227 B | 0644 |
|
| qcom_bam_dma.h | File | 1.74 KB | 0644 |
|
| sprd-dma.h | File | 8.2 KB | 0644 |
|
| ti-cppi5.h | File | 33.08 KB | 0644 |
|
| xilinx_dma.h | File | 1022 B | 0644 |
|
| xilinx_dpdma.h | File | 239 B | 0644 |
|