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dmaengine: Move dma_get_{,any_}slave_channel() to private dmaengine.h 

The functions dma_get_slave_channel() and dma_get_any_slave_channel()
are called from DMA engine drivers only.  Hence move their declarations
from the public header file <linux/dmaengine.h> to the private header
file drivers/dma/dmaengine.h.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200121093311.28639-4-geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Geert Uytterhoeven 2020-01-21 10:33:11 +01:00 committed by Vinod Koul
parent 71ca5b7823
commit c3c431de99
3 changed files with 5 additions and 2 deletions
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3
drivers/dma/dmaengine.h
View File

@ -179,4 +179,7 @@ dmaengine_desc_callback_valid(struct dmaengine_desc_callback *cb)
return (cb->callback) ? true : false;
}
struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
struct dma_chan *dma_get_any_slave_channel(struct dma_device *device);
#endif

2
drivers/dma/of-dma.c
View File

@ -15,6 +15,8 @@
#include <linux/of.h>
#include <linux/of_dma.h>
#include "dmaengine.h"
static LIST_HEAD(of_dma_list);
static DEFINE_MUTEX(of_dma_lock);

2
include/linux/dmaengine.h
View File

@ -1522,8 +1522,6 @@ int dma_async_device_register(struct dma_device *device);
int dmaenginem_async_device_register(struct dma_device *device);
void dma_async_device_unregister(struct dma_device *device);
void dma_run_dependencies(struct dma_async_tx_descriptor *tx);
struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
struct dma_chan *dma_get_any_slave_channel(struct dma_device *device);
#define dma_request_channel(mask, x, y) \
__dma_request_channel(&(mask), x, y, NULL)