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Subject[PATCH 06/14] mmc: mmci: merge prepare data functions
Date
From: Ludovic Barre <ludovic.barre@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.barre@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
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