[PATCH 06/14] mmc: mmci: merge prepare data functions

[Ludovic Barre]

From: Ludovic Barre <ludovic.ba...@st.com>

This patch merges the prepare data functions.
This allows to define a single access to prepare data service.
This prepares integration for mmci host ops.

Signed-off-by: Ludovic Barre <ludovic.ba...@st.com>
---
 drivers/mmc/host/mmci.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 5646c2e6..e4d80f1 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -651,11 +651,16 @@ static int __mmci_dma_prep_data(struct mmci_host *host, 
struct mmc_data *data,
        return -ENOMEM;
 }
 
-static inline int mmci_dma_prep_data(struct mmci_host *host,
-                                    struct mmc_data *data)
+static inline int mmci_dma_prepare_data(struct mmci_host *host,
+                                       struct mmc_data *data,
+                                       bool next)
 {
        struct dmaengine_priv *dmae = host->dma_priv;
+       struct dmaengine_next *nd = &dmae->next_data;
 
+       if (next)
+               return __mmci_dma_prep_data(host, data, &nd->dma_chan,
+                                           &nd->dma_desc);
        /* Check if next job is already prepared. */
        if (dmae->dma_current && dmae->dma_desc_current)
                return 0;
@@ -665,22 +670,13 @@ static inline int mmci_dma_prep_data(struct mmci_host 
*host,
                                    &dmae->dma_desc_current);
 }
 
-static inline int mmci_dma_prep_next(struct mmci_host *host,
-                                    struct mmc_data *data)
-{
-       struct dmaengine_priv *dmae = host->dma_priv;
-       struct dmaengine_next *nd = &dmae->next_data;
-
-       return __mmci_dma_prep_data(host, data, &nd->dma_chan, &nd->dma_desc);
-}
-
 static int mmci_dma_start_data(struct mmci_host *host, unsigned int datactrl)
 {
        struct dmaengine_priv *dmae = host->dma_priv;
        struct mmc_data *data = host->data;
        int ret;
 
-       ret = mmci_dma_prep_data(host, host->data);
+       ret = mmci_dma_prepare_data(host, host->data, false);
        if (ret)
                return ret;
 
@@ -737,7 +733,7 @@ static void mmci_pre_request(struct mmc_host *mmc, struct 
mmc_request *mrq)
        if (mmci_validate_data(host, data))
                return;
 
-       if (!mmci_dma_prep_next(host, data))
+       if (!mmci_dma_prepare_data(host, data, true))
                data->host_cookie = ++host->next_cookie < 0 ?
                        1 : host->next_cookie;
 }
-- 
2.7.4