diff options
| author | Robin Gong <yibin.gong@nxp.com> | 2018-07-24 22:12:24 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | c08ac5ed06e5df3de4d051908a95de687187cf0a (patch) | |
| tree | ee9d8ce63b4410c856a759bec6b6ee1d59f3858d /drivers/dma | |
| parent | 4acc3f8616c283df1b1c5f73b064621d86b0e678 (diff) | |
MLK-19022-2: dmaengine: fsl-edma-v3: add device_synchronize
Add device_synchronize for edma driver, since some driver such as
Audio need it to make sure dma done callback never come out after
resource related with dma channel free-ed by Audio driver. Android
team report such issue on MA-12087.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/fsl-edma-v3.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dma/fsl-edma-v3.c b/drivers/dma/fsl-edma-v3.c index 734c469d0cb2..a7b57f4ef503 100644 --- a/drivers/dma/fsl-edma-v3.c +++ b/drivers/dma/fsl-edma-v3.c @@ -812,6 +812,13 @@ static void fsl_edma3_free_chan_resources(struct dma_chan *chan) fsl_chan->used = false; } +static void fsl_edma3_synchronize(struct dma_chan *chan) +{ + struct fsl_edma3_chan *fsl_chan = to_fsl_edma3_chan(chan); + + vchan_synchronize(&fsl_chan->vchan); +} + static int fsl_edma3_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -927,6 +934,7 @@ static int fsl_edma3_probe(struct platform_device *pdev) fsl_edma3->dma_dev.device_resume = fsl_edma3_resume; fsl_edma3->dma_dev.device_terminate_all = fsl_edma3_terminate_all; fsl_edma3->dma_dev.device_issue_pending = fsl_edma3_issue_pending; + fsl_edma3->dma_dev.device_synchronize = fsl_edma3_synchronize; fsl_edma3->dma_dev.src_addr_widths = FSL_EDMA_BUSWIDTHS; fsl_edma3->dma_dev.dst_addr_widths = FSL_EDMA_BUSWIDTHS; |