Lines Matching refs:tx_chan
1193 host->tx_chan = dma_request_chan(mmc->parent, "tx"); in sdhci_external_dma_init()
1194 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1195 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1198 host->tx_chan = NULL; in sdhci_external_dma_init()
1204 if (host->tx_chan) { in sdhci_external_dma_init()
1205 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1206 host->tx_chan = NULL; in sdhci_external_dma_init()
1221 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1281 if (host->tx_chan) { in sdhci_external_dma_release()
1282 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1283 host->tx_chan = NULL; in sdhci_external_dma_release()