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-rw-r--r--include/linux/sh_dma.h33
1 files changed, 10 insertions, 23 deletions
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h
index e081e8e8d109..7c8ca41e60e6 100644
--- a/include/linux/sh_dma.h
+++ b/include/linux/sh_dma.h
@@ -13,34 +13,21 @@
13#include <linux/dmaengine.h> 13#include <linux/dmaengine.h>
14#include <linux/list.h> 14#include <linux/list.h>
15#include <linux/shdma-base.h> 15#include <linux/shdma-base.h>
16#include <linux/types.h>
17
18struct device;
16 19
17/* Used by slave DMA clients to request DMA to/from a specific peripheral */ 20/* Used by slave DMA clients to request DMA to/from a specific peripheral */
18struct sh_dmae_slave { 21struct sh_dmae_slave {
19 union { 22 struct shdma_slave shdma_slave; /* Set by the platform */
20 unsigned int slave_id; /* Set by the platform */ 23 struct device *dma_dev; /* Set by the platform */
21 struct shdma_slave shdma_slave; 24 const struct sh_dmae_slave_config *config; /* Set by the driver */
22 };
23 struct device *dma_dev; /* Set by the platform */
24 const struct sh_dmae_slave_config *config; /* Set by the driver */
25};
26
27struct sh_dmae_regs {
28 u32 sar; /* SAR / source address */
29 u32 dar; /* DAR / destination address */
30 u32 tcr; /* TCR / transfer count */
31};
32
33struct sh_desc {
34 struct sh_dmae_regs hw;
35 struct list_head node;
36 struct dma_async_tx_descriptor async_tx;
37 enum dma_transfer_direction direction;
38 dma_cookie_t cookie;
39 size_t partial;
40 int chunks;
41 int mark;
42}; 25};
43 26
27/*
28 * Supplied by platforms to specify, how a DMA channel has to be configured for
29 * a certain peripheral
30 */
44struct sh_dmae_slave_config { 31struct sh_dmae_slave_config {
45 unsigned int slave_id; 32 unsigned int slave_id;
46 dma_addr_t addr; 33 dma_addr_t addr;