Lines Matching full:tx_chan

1182 	host->tx_chan = dma_request_chan(mmc->parent, "tx");  in sdhci_external_dma_init()
1183 	if (IS_ERR(host->tx_chan)) {  in sdhci_external_dma_init()
1184 		ret = PTR_ERR(host->tx_chan);  in sdhci_external_dma_init()
1187 		host->tx_chan = NULL;  in sdhci_external_dma_init()
1193 		if (host->tx_chan) {  in sdhci_external_dma_init()
1194 			dma_release_channel(host->tx_chan);  in sdhci_external_dma_init()
1195 			host->tx_chan = NULL;  in sdhci_external_dma_init()
1210 	return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan;  in sdhci_external_dma_channel()
1270 	if (host->tx_chan) {  in sdhci_external_dma_release()
1271 		dma_release_channel(host->tx_chan);  in sdhci_external_dma_release()
1272 		host->tx_chan = NULL;  in sdhci_external_dma_release()