Lines Matching full:tx_chan
1225 host->tx_chan = dma_request_chan(mmc_dev(mmc), "tx"); in sdhci_external_dma_init()
1226 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1227 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1230 host->tx_chan = NULL; in sdhci_external_dma_init()
1236 if (host->tx_chan) { in sdhci_external_dma_init()
1237 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1238 host->tx_chan = NULL; in sdhci_external_dma_init()
1253 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1313 if (host->tx_chan) { in sdhci_external_dma_release()
1314 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1315 host->tx_chan = NULL; in sdhci_external_dma_release()