46 	struct dma_async_tx_descriptor *depend_tx = submit->depend_tx;  in __async_tx_find_channel()  local
49 	if (depend_tx &&  in __async_tx_find_channel()
50 	    dma_has_cap(tx_type, depend_tx->chan->device->cap_mask))  in __async_tx_find_channel()
51 		return depend_tx->chan;  in __async_tx_find_channel()
65 async_tx_channel_switch(struct dma_async_tx_descriptor *depend_tx,  in async_tx_channel_switch()  argument
68 	struct dma_chan *chan = depend_tx->chan;  in async_tx_channel_switch()
73 	txd_lock(depend_tx);  in async_tx_channel_switch()
74 	if (txd_parent(depend_tx) && depend_tx->chan == tx->chan) {  in async_tx_channel_switch()
75 		txd_chain(depend_tx, tx);  in async_tx_channel_switch()
78 	txd_unlock(depend_tx);  in async_tx_channel_switch()
103 		txd_lock(depend_tx);  in async_tx_channel_switch()
104 		if (txd_parent(depend_tx)) {  in async_tx_channel_switch()
105 			txd_chain(depend_tx, intr_tx);  in async_tx_channel_switch()
109 		txd_unlock(depend_tx);  in async_tx_channel_switch()
118 		if (dma_wait_for_async_tx(depend_tx) != DMA_COMPLETE)  in async_tx_channel_switch()
146 	struct dma_async_tx_descriptor *depend_tx = submit->depend_tx;  in async_tx_submit()  local
151 	if (depend_tx) {  in async_tx_submit()
160 		BUG_ON(async_tx_test_ack(depend_tx) || txd_next(depend_tx) ||  in async_tx_submit()
166 		txd_lock(depend_tx);  in async_tx_submit()
167 		if (txd_parent(depend_tx)) {  in async_tx_submit()
172 			if (depend_tx->chan == chan) {  in async_tx_submit()
173 				txd_chain(depend_tx, tx);  in async_tx_submit()
181 			if (depend_tx->chan == chan)  in async_tx_submit()
186 		txd_unlock(depend_tx);  in async_tx_submit()
192 			async_tx_channel_switch(depend_tx, tx);  in async_tx_submit()
207 	if (depend_tx)  in async_tx_submit()
208 		async_tx_ack(depend_tx);  in async_tx_submit()
226 	struct dma_async_tx_descriptor *depend_tx = submit->depend_tx;  in async_trigger_callback()  local
228 	if (depend_tx) {  in async_trigger_callback()
229 		chan = depend_tx->chan;  in async_trigger_callback()
250 		async_tx_quiesce(&submit->depend_tx);  in async_trigger_callback()