mmc: mmci: internalize dma_inprogress into mmci dma functions

This patch internalizes the dma_inprogress into mmci dma interfaces.
This allows to simplify and prepare the next dma callbacks
for mmci host ops. dma_inprogress is called in mmci_dma_data_error
and mmci_dma_finalize.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/mmci.c

@@ -496,6 +496,9 @@ static void mmci_dma_unmap(struct mmci_host *host, struct mmc_data *data)
 
 static void mmci_dma_data_error(struct mmci_host *host)
 {
+	if (!dma_inprogress(host))
+		return;
+
 	dev_err(mmc_dev(host->mmc), "error during DMA transfer!\n");
 	dmaengine_terminate_all(host->dma_current);
 	host->dma_in_progress = false;
@@ -511,6 +514,9 @@ static void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data)
 	u32 status;
 	int i;
 
+	if (!dma_inprogress(host))
+		return;
+
 	/* Wait up to 1ms for the DMA to complete */
 	for (i = 0; ; i++) {
 		status = readl(host->base + MMCISTATUS);
@@ -902,8 +908,7 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 		u32 remain, success;
 
 		/* Terminate the DMA transfer */
-		if (dma_inprogress(host))
-			mmci_dma_data_error(host);
+		mmci_dma_data_error(host);
 
 		/*
 		 * Calculate how far we are into the transfer.  Note that
@@ -941,8 +946,8 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 		dev_err(mmc_dev(host->mmc), "stray MCI_DATABLOCKEND interrupt\n");
 
 	if (status & MCI_DATAEND || data->error) {
-		if (dma_inprogress(host))
-			mmci_dma_finalize(host, data);
+		mmci_dma_finalize(host, data);
+
 		mmci_stop_data(host);
 
 		if (!data->error)
@@ -1049,8 +1054,7 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
 	if ((!sbc && !cmd->data) || cmd->error) {
 		if (host->data) {
 			/* Terminate the DMA transfer */
-			if (dma_inprogress(host))
-				mmci_dma_data_error(host);
+			mmci_dma_data_error(host);
 
 			mmci_stop_data(host);
 		}

drivers/mmc/host/mmci.h

@@ -333,8 +333,6 @@ struct mmci_host {
 	bool			dma_in_progress;
 
 #define dma_inprogress(host)	((host)->dma_in_progress)
-#else
-#define dma_inprogress(host)	(0)
 #endif
 };