22 int mgb4_dma_transfer(struct mgb4_dev *mgbdev, u32 channel, bool write,  in mgb4_dma_transfer()  argument
28 	struct pci_dev *pdev = mgbdev->pdev;  in mgb4_dma_transfer()
37 		chan = &mgbdev->h2c_chan[channel];  in mgb4_dma_transfer()
42 		chan = &mgbdev->c2h_chan[channel];  in mgb4_dma_transfer()
79 int mgb4_dma_channel_init(struct mgb4_dev *mgbdev)  in mgb4_dma_channel_init()  argument
83 	struct pci_dev *pdev = mgbdev->pdev;  in mgb4_dma_channel_init()
87 		mgbdev->c2h_chan[i].chan = dma_request_chan(&pdev->dev, name);  in mgb4_dma_channel_init()
88 		if (IS_ERR(mgbdev->c2h_chan[i].chan)) {  in mgb4_dma_channel_init()
90 			ret = PTR_ERR(mgbdev->c2h_chan[i].chan);  in mgb4_dma_channel_init()
91 			mgbdev->c2h_chan[i].chan = NULL;  in mgb4_dma_channel_init()
94 		init_completion(&mgbdev->c2h_chan[i].req_compl);  in mgb4_dma_channel_init()
98 		mgbdev->h2c_chan[i].chan = dma_request_chan(&pdev->dev, name);  in mgb4_dma_channel_init()
99 		if (IS_ERR(mgbdev->h2c_chan[i].chan)) {  in mgb4_dma_channel_init()
101 			ret = PTR_ERR(mgbdev->h2c_chan[i].chan);  in mgb4_dma_channel_init()
102 			mgbdev->h2c_chan[i].chan = NULL;  in mgb4_dma_channel_init()
105 		init_completion(&mgbdev->h2c_chan[i].req_compl);  in mgb4_dma_channel_init()
111 void mgb4_dma_channel_free(struct mgb4_dev *mgbdev)  in mgb4_dma_channel_free()  argument
116 		if (mgbdev->c2h_chan[i].chan)  in mgb4_dma_channel_free()
117 			dma_release_channel(mgbdev->c2h_chan[i].chan);  in mgb4_dma_channel_free()
120 		if (mgbdev->h2c_chan[i].chan)  in mgb4_dma_channel_free()
121 			dma_release_channel(mgbdev->h2c_chan[i].chan);  in mgb4_dma_channel_free()