Lines Matching refs:tx_chan
1215 host->tx_chan = dma_request_chan(mmc_dev(mmc), "tx"); in sdhci_external_dma_init()
1216 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1217 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1220 host->tx_chan = NULL; in sdhci_external_dma_init()
1226 if (host->tx_chan) { in sdhci_external_dma_init()
1227 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1228 host->tx_chan = NULL; in sdhci_external_dma_init()
1243 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1303 if (host->tx_chan) { in sdhci_external_dma_release()
1304 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1305 host->tx_chan = NULL; in sdhci_external_dma_release()