Lines Matching refs:tx_chan
1188 host->tx_chan = dma_request_chan(mmc_dev(mmc), "tx"); in sdhci_external_dma_init()
1189 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1190 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1193 host->tx_chan = NULL; in sdhci_external_dma_init()
1199 if (host->tx_chan) { in sdhci_external_dma_init()
1200 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1201 host->tx_chan = NULL; in sdhci_external_dma_init()
1216 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1276 if (host->tx_chan) { in sdhci_external_dma_release()
1277 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1278 host->tx_chan = NULL; in sdhci_external_dma_release()