diff options
| author | Ludovic Barre <ludovic.barre@st.com> | 2018-09-21 11:45:55 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-10-08 11:40:43 +0200 |
| commit | 7b2a6d518d0c9dc92910c089b75f859ec916b93a (patch) | |
| tree | 871ba909fc5793ab5def362e54ccbb18cb648837 /drivers | |
| parent | 2ffca7a34df5ce95efff4a481cd79ec47abf3d6d (diff) | |
| download | linux-stable-7b2a6d518d0c9dc92910c089b75f859ec916b93a.tar.gz linux-stable-7b2a6d518d0c9dc92910c089b75f859ec916b93a.tar.bz2 linux-stable-7b2a6d518d0c9dc92910c089b75f859ec916b93a.zip | |
mmc: mmci: internalize dma map/unmap into mmci dma functions
This patch internalizes the management of dma map/unmap into
mmci dma interfaces. This allows to simplify and prepare the next dma
callbacks for mmci host ops.
mmci_dma_unmap was called in mmci_data_irq & mmci_cmd_irq functions
and can be integrated in mmci_dma_data_error.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 4b843712dc01..a25304d68f6d 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -481,16 +481,6 @@ static inline void mmci_dma_release(struct mmci_host *host) host->dma_rx_channel = host->dma_tx_channel = NULL; } -static void mmci_dma_data_error(struct mmci_host *host) -{ - dev_err(mmc_dev(host->mmc), "error during DMA transfer!\n"); - dmaengine_terminate_all(host->dma_current); - host->dma_in_progress = false; - host->dma_current = NULL; - host->dma_desc_current = NULL; - host->data->host_cookie = 0; -} - static void mmci_dma_unmap(struct mmci_host *host, struct mmc_data *data) { struct dma_chan *chan; @@ -504,6 +494,18 @@ static void mmci_dma_unmap(struct mmci_host *host, struct mmc_data *data) mmc_get_dma_dir(data)); } +static void mmci_dma_data_error(struct mmci_host *host) +{ + dev_err(mmc_dev(host->mmc), "error during DMA transfer!\n"); + dmaengine_terminate_all(host->dma_current); + host->dma_in_progress = false; + host->dma_current = NULL; + host->dma_desc_current = NULL; + host->data->host_cookie = 0; + + mmci_dma_unmap(host, host->data); +} + static void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data) { u32 status; @@ -527,10 +529,9 @@ static void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data) mmci_dma_data_error(host); if (!data->error) data->error = -EIO; - } - - if (!data->host_cookie) + } else if (!data->host_cookie) { mmci_dma_unmap(host, data); + } /* * Use of DMA with scatter-gather is impossible. @@ -741,10 +742,6 @@ static inline void mmci_dma_release(struct mmci_host *host) { } -static inline void mmci_dma_unmap(struct mmci_host *host, struct mmc_data *data) -{ -} - static inline void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data) { @@ -905,10 +902,8 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, u32 remain, success; /* Terminate the DMA transfer */ - if (dma_inprogress(host)) { + if (dma_inprogress(host)) mmci_dma_data_error(host); - mmci_dma_unmap(host, data); - } /* * Calculate how far we are into the transfer. Note that @@ -1054,10 +1049,9 @@ 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)) { + if (dma_inprogress(host)) mmci_dma_data_error(host); - mmci_dma_unmap(host, host->data); - } + mmci_stop_data(host); } mmci_request_end(host, host->mrq); |