mmc/host/mmci.c

847 	struct mmci_dmae_priv *dmae;
849 	dmae = devm_kzalloc(mmc_dev(host->mmc), sizeof(*dmae), GFP_KERNEL);
850 	if (!dmae)
853 	host->dma_priv = dmae;
855 	dmae->rx_channel = dma_request_chan(mmc_dev(host->mmc), "rx");
856 	if (IS_ERR(dmae->rx_channel)) {
857 		int ret = PTR_ERR(dmae->rx_channel);
858 		dmae->rx_channel = NULL;
862 	dmae->tx_channel = dma_request_chan(mmc_dev(host->mmc), "tx");
863 	if (IS_ERR(dmae->tx_channel)) {
864 		if (PTR_ERR(dmae->tx_channel) == -EPROBE_DEFER)
867 		dmae->tx_channel = NULL;
875 	if (dmae->rx_channel && !dmae->tx_channel)
876 		dmae->tx_channel = dmae->rx_channel;
878 	if (dmae->rx_channel)
879 		rxname = dma_chan_name(dmae->rx_channel);
883 	if (dmae->tx_channel)
884 		txname = dma_chan_name(dmae->tx_channel);
895 	if (dmae->tx_channel) {
896 		struct device *dev = dmae->tx_channel->device->dev;
902 	if (dmae->rx_channel) {
903 		struct device *dev = dmae->rx_channel->device->dev;
910 	if (!dmae->tx_channel || !dmae->rx_channel) {
924 	struct mmci_dmae_priv *dmae = host->dma_priv;
926 	if (dmae->rx_channel)
927 		dma_release_channel(dmae->rx_channel);
928 	if (dmae->tx_channel)
929 		dma_release_channel(dmae->tx_channel);
930 	dmae->rx_channel = dmae->tx_channel = NULL;
935 	struct mmci_dmae_priv *dmae = host->dma_priv;
939 		chan = dmae->rx_channel;
941 		chan = dmae->tx_channel;
949 	struct mmci_dmae_priv *dmae = host->dma_priv;
955 	dmaengine_terminate_all(dmae->cur);
957 	dmae->cur = NULL;
958 	dmae->desc_current = NULL;
966 	struct mmci_dmae_priv *dmae = host->dma_priv;
1005 	dmae->cur = NULL;
1006 	dmae->desc_current = NULL;
1014 	struct mmci_dmae_priv *dmae = host->dma_priv;
1033 		chan = dmae->rx_channel;
1036 		chan = dmae->tx_channel;
1089 	struct mmci_dmae_priv *dmae = host->dma_priv;
1090 	struct mmci_dmae_next *nd = &dmae->next_data;
1098 	if (dmae->cur && dmae->desc_current)
1102 	return _mmci_dmae_prep_data(host, data, &dmae->cur,
1103 				    &dmae->desc_current);
1108 	struct mmci_dmae_priv *dmae = host->dma_priv;
1112 	ret = dma_submit_error(dmaengine_submit(dmae->desc_current));
1117 	dma_async_issue_pending(dmae->cur);
1126 	struct mmci_dmae_priv *dmae = host->dma_priv;
1127 	struct mmci_dmae_next *next = &dmae->next_data;
1134 	dmae->desc_current = next->desc;
1135 	dmae->cur = next->chan;
1144 	struct mmci_dmae_priv *dmae = host->dma_priv;
1152 		struct mmci_dmae_next *next = &dmae->next_data;
1155 			chan = dmae->rx_channel;
1157 			chan = dmae->tx_channel;
1160 		if (dmae->desc_current == next->desc)
1161 			dmae->desc_current = NULL;
1163 		if (dmae->cur == next->chan) {
1165 			dmae->cur = NULL;