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-rw-r--r--include/linux/dmaengine.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 56377df39124..9c02a4508b25 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -338,6 +338,9 @@ enum dma_slave_buswidth {
* @device_fc: Flow Controller Settings. Only valid for slave channels. Fill
* with 'true' if peripheral should be flow controller. Direction will be
* selected at Runtime.
+ * @slave_id: Slave requester id. Only valid for slave channels. The dma
+ * slave peripheral will have unique id as dma requester which need to be
+ * pass as slave config.
*
* This struct is passed in as configuration data to a DMA engine
* in order to set up a certain channel for DMA transport at runtime.
@@ -365,6 +368,7 @@ struct dma_slave_config {
u32 src_maxburst;
u32 dst_maxburst;
bool device_fc;
+ unsigned int slave_id;
};
static inline const char *dma_chan_name(struct dma_chan *chan)
@@ -670,6 +674,12 @@ static inline int dmaengine_resume(struct dma_chan *chan)
return dmaengine_device_control(chan, DMA_RESUME, 0);
}
+static inline enum dma_status dmaengine_tx_status(struct dma_chan *chan,
+ dma_cookie_t cookie, struct dma_tx_state *state)
+{
+ return chan->device->device_tx_status(chan, cookie, state);
+}
+
static inline dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc)
{
return desc->tx_submit(desc);