diff options
| author | Ivan T. Ivanov <ivan.ivanov@linaro.org> | 2015-09-03 17:59:26 +0300 |
|---|---|---|
| committer | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2016-07-05 14:06:39 +0100 |
| commit | 59001c1289a42e502c93be58e85eda437198613a (patch) | |
| tree | 479996c9d767cf761bd333d6dfba579a87c1219c | |
| parent | 3453131bb7908fb514796f14658ee84fe261068d (diff) | |
dmaengine: adm: Use 'soft' flush when stopping DMA
'Soft' flush will commit current buffer to memory
beffore stopping the engine. Used with peripheral
devices which did not know a priory DMA transfer
lenght, like size of input data in UART driver.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
| -rw-r--r-- | drivers/dma/qcom_adm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/qcom_adm.c b/drivers/dma/qcom_adm.c index 087f89f2e3db3..56d678b5379f7 100644 --- a/drivers/dma/qcom_adm.c +++ b/drivers/dma/qcom_adm.c @@ -466,7 +466,7 @@ static int adm_terminate_all(struct dma_chan *chan) vchan_get_all_descriptors(&achan->vc, &head); /* send flush command to terminate current transaction */ - writel_relaxed(0x0, + writel_relaxed(BIT(31), adev->regs + ADM_CH_FLUSH_STATE0(achan->id, adev->ee)); spin_unlock_irqrestore(&achan->vc.lock, flags); |