dmaengine: Move dma_get_slave_caps() implementation to dmaengine.c

[firefly-linux-kernel-4.4.55.git] / include / linux / dmaengine.h

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 6d34ce91036ca872bdfe5501a5c569ba522c5439..1b4842bb3890f0f7bba53e3ad1741e05dfc70278 100644 (file)
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -758,37 +758,7 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg(
                        src_sg, src_nents, flags);
 }
 
-static inline int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
-{
-       struct dma_device *device;
-
-       if (!chan || !caps)
-               return -EINVAL;
-
-       device = chan->device;
-
-       /* check if the channel supports slave transactions */
-       if (!test_bit(DMA_SLAVE, device->cap_mask.bits))
-               return -ENXIO;
-
-       /*
-        * Check whether it reports it uses the generic slave
-        * capabilities, if not, that means it doesn't support any
-        * kind of slave capabilities reporting.
-        */
-       if (!device->directions)
-               return -ENXIO;
-
-       caps->src_addr_widths = device->src_addr_widths;
-       caps->dst_addr_widths = device->dst_addr_widths;
-       caps->directions = device->directions;
-       caps->residue_granularity = device->residue_granularity;
-
-       caps->cmd_pause = !!device->device_pause;
-       caps->cmd_terminate = !!device->device_terminate_all;
-
-       return 0;
-}
+int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps);
 
 static inline int dmaengine_terminate_all(struct dma_chan *chan)
 {