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| author | Ludovic Barre <ludovic.barre@st.com> | 2018-10-08 14:08:33 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-10-09 09:13:03 +0200 |
| commit | c3647fdc6a5a48699a1248a7f3d9a0429369e939 (patch) | |
| tree | 991fad512b5c4613290f3dc9b1feaa4ef94130c2 /drivers/mmc/host/mmci.h | |
| parent | f0061fed1f8a9f86ddec303a3f94742a71b20cb7 (diff) | |
| download | linux-c3647fdc6a5a48699a1248a7f3d9a0429369e939.tar.bz2 | |
mmc: mmci: create common mmci_dma_setup/release
This patch creates a common mmci_dma_setup/release which calls
dma_setup/release callbacks of mmci_host_ops and manages
common features like use_dma... If there is a fallbacks to
pio mode, dma functions must check use_dma.
error management:
-mmci_dmae_setup fail if Tx and Rx dma channels are not defined
-qcom_dma_setup fail if one of both dma channels is not defined,
Qcom has no specific resource to release, just mmci dmae resource.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/mmci.h')
| -rw-r--r-- | drivers/mmc/host/mmci.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 01e6c6bb5e83..34bb5e6a738b 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -273,7 +273,8 @@ struct variant_data { /* mmci variant callbacks */ struct mmci_host_ops { - void (*dma_setup)(struct mmci_host *host); + int (*dma_setup)(struct mmci_host *host); + void (*dma_release)(struct mmci_host *host); }; struct mmci_host_next { @@ -323,6 +324,7 @@ struct mmci_host { unsigned int size; int (*get_rx_fifocnt)(struct mmci_host *h, u32 status, int remain); + u8 use_dma:1; #ifdef CONFIG_DMA_ENGINE /* DMA stuff */ struct dma_chan *dma_current; @@ -336,3 +338,6 @@ struct mmci_host { #endif }; +int mmci_dmae_setup(struct mmci_host *host); +void mmci_dmae_release(struct mmci_host *host); + |