Lines Matching refs:tx_chan
1224 host->tx_chan = dma_request_chan(mmc_dev(mmc), "tx"); in sdhci_external_dma_init()
1225 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1226 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1229 host->tx_chan = NULL; in sdhci_external_dma_init()
1235 if (host->tx_chan) { in sdhci_external_dma_init()
1236 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1237 host->tx_chan = NULL; in sdhci_external_dma_init()
1252 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1312 if (host->tx_chan) { in sdhci_external_dma_release()
1313 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1314 host->tx_chan = NULL; in sdhci_external_dma_release()