19 int qce_dma_request(struct device *dev, struct qce_dma_data *dma)  in qce_dma_request()  argument
23 	dma->txchan = dma_request_slave_channel_reason(dev, "tx");  in qce_dma_request()
24 	if (IS_ERR(dma->txchan))  in qce_dma_request()
25 		return PTR_ERR(dma->txchan);  in qce_dma_request()
27 	dma->rxchan = dma_request_slave_channel_reason(dev, "rx");  in qce_dma_request()
28 	if (IS_ERR(dma->rxchan)) {  in qce_dma_request()
29 		ret = PTR_ERR(dma->rxchan);  in qce_dma_request()
33 	dma->result_buf = kmalloc(QCE_RESULT_BUF_SZ + QCE_IGNORE_BUF_SZ,  in qce_dma_request()
35 	if (!dma->result_buf) {  in qce_dma_request()
40 	dma->ignore_buf = dma->result_buf + QCE_RESULT_BUF_SZ;  in qce_dma_request()
44 	dma_release_channel(dma->rxchan);  in qce_dma_request()
46 	dma_release_channel(dma->txchan);  in qce_dma_request()
50 void qce_dma_release(struct qce_dma_data *dma)  in qce_dma_release()  argument
52 	dma_release_channel(dma->txchan);  in qce_dma_release()
53 	dma_release_channel(dma->rxchan);  in qce_dma_release()
54 	kfree(dma->result_buf);  in qce_dma_release()
104 int qce_dma_prep_sgs(struct qce_dma_data *dma, struct scatterlist *rx_sg,  in qce_dma_prep_sgs()  argument
108 	struct dma_chan *rxchan = dma->rxchan;  in qce_dma_prep_sgs()
109 	struct dma_chan *txchan = dma->txchan;  in qce_dma_prep_sgs()
122 void qce_dma_issue_pending(struct qce_dma_data *dma)  in qce_dma_issue_pending()  argument
124 	dma_async_issue_pending(dma->rxchan);  in qce_dma_issue_pending()
125 	dma_async_issue_pending(dma->txchan);  in qce_dma_issue_pending()
128 int qce_dma_terminate_all(struct qce_dma_data *dma)  in qce_dma_terminate_all()  argument
132 	ret = dmaengine_terminate_all(dma->rxchan);  in qce_dma_terminate_all()
133 	return ret ?: dmaengine_terminate_all(dma->txchan);  in qce_dma_terminate_all()