[PATCH V2 06/27] mmc: mmci: merge prepare data functions
From: Ludovic Barre <hidden>
Date: 2018-09-18 10:56:39
Also in:
linux-arm-kernel, linux-mmc, lkml
Subsystem:
arm primecell mmci pl180/1 driver, multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Russell King, Ulf Hansson, Linus Torvalds
From: Ludovic Barre <redacted> 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 <redacted> --- change v2: -rename to mmci_prep/unprep_data drivers/mmc/host/mmci.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 43f2a1a..0cbe71c 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c@@ -652,10 +652,14 @@ static int __mmci_dma_prep_data(struct mmci_host *host, struct mmc_data *data, } static inline int mmci_dma_prep_data(struct mmci_host *host, - struct mmc_data *data) + struct mmc_data *data, + bool next) { struct mmci_dmae_priv *dmae = host->dma_priv; + struct mmci_dmae_next *nd = &dmae->next_data; + if (next) + return __mmci_dma_prep_data(host, data, &nd->chan, &nd->desc); /* Check if next job is already prepared. */ if (dmae->cur && dmae->desc_current) return 0;
@@ -665,22 +669,13 @@ static inline int mmci_dma_prep_data(struct mmci_host *host, &dmae->desc_current); } -static inline int mmci_dma_prep_next(struct mmci_host *host, - struct mmc_data *data) -{ - struct mmci_dmae_priv *dmae = host->dma_priv; - struct mmci_dmae_next *nd = &dmae->next_data; - - return __mmci_dma_prep_data(host, data, &nd->chan, &nd->desc); -} - static int mmci_dma_start_data(struct mmci_host *host, unsigned int datactrl) { struct mmci_dmae_priv *dmae = host->dma_priv; struct mmc_data *data = host->data; int ret; - ret = mmci_dma_prep_data(host, host->data); + ret = mmci_dma_prep_data(host, host->data, false); if (ret) return ret;
@@ -737,7 +732,7 @@ 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_prep_data(host, data, true)) data->host_cookie = ++host->next_cookie < 0 ? 1 : host->next_cookie; }
--
2.7.4