59 	struct dma_async_tx_descriptor *depend_tx = submit->depend_tx;  in __async_tx_find_channel()  local
62 	if (depend_tx &&  in __async_tx_find_channel()
63 	    dma_has_cap(tx_type, depend_tx->chan->device->cap_mask))  in __async_tx_find_channel()
64 		return depend_tx->chan;  in __async_tx_find_channel()
78 async_tx_channel_switch(struct dma_async_tx_descriptor *depend_tx,  in async_tx_channel_switch()  argument
81 	struct dma_chan *chan = depend_tx->chan;  in async_tx_channel_switch()
86 	txd_lock(depend_tx);  in async_tx_channel_switch()
87 	if (txd_parent(depend_tx) && depend_tx->chan == tx->chan) {  in async_tx_channel_switch()
88 		txd_chain(depend_tx, tx);  in async_tx_channel_switch()
91 	txd_unlock(depend_tx);  in async_tx_channel_switch()
116 		txd_lock(depend_tx);  in async_tx_channel_switch()
117 		if (txd_parent(depend_tx)) {  in async_tx_channel_switch()
118 			txd_chain(depend_tx, intr_tx);  in async_tx_channel_switch()
122 		txd_unlock(depend_tx);  in async_tx_channel_switch()
131 		if (dma_wait_for_async_tx(depend_tx) != DMA_COMPLETE)  in async_tx_channel_switch()
159 	struct dma_async_tx_descriptor *depend_tx = submit->depend_tx;  in async_tx_submit()  local
164 	if (depend_tx) {  in async_tx_submit()
173 		BUG_ON(async_tx_test_ack(depend_tx) || txd_next(depend_tx) ||  in async_tx_submit()
179 		txd_lock(depend_tx);  in async_tx_submit()
180 		if (txd_parent(depend_tx)) {  in async_tx_submit()
185 			if (depend_tx->chan == chan) {  in async_tx_submit()
186 				txd_chain(depend_tx, tx);  in async_tx_submit()
194 			if (depend_tx->chan == chan)  in async_tx_submit()
199 		txd_unlock(depend_tx);  in async_tx_submit()
205 			async_tx_channel_switch(depend_tx, tx);  in async_tx_submit()
220 	if (depend_tx)  in async_tx_submit()
221 		async_tx_ack(depend_tx);  in async_tx_submit()
239 	struct dma_async_tx_descriptor *depend_tx = submit->depend_tx;  in async_trigger_callback()  local
241 	if (depend_tx) {  in async_trigger_callback()
242 		chan = depend_tx->chan;  in async_trigger_callback()
263 		async_tx_quiesce(&submit->depend_tx);  in async_trigger_callback()