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| author | Linus Walleij <linus.walleij@linaro.org> | 2017-01-13 16:02:09 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-01-14 20:33:42 +0530 |
| commit | 15c606686541d49cc38465a3cfe25c23bff4395b (patch) | |
| tree | 1ee1f7c669f4b9468388b0c557f972d8e1197ce1 /drivers/dma | |
| parent | 49873e99b7b5d59eef238199fd55f8345e860824 (diff) | |
| download | lwn-15c606686541d49cc38465a3cfe25c23bff4395b.tar.gz lwn-15c606686541d49cc38465a3cfe25c23bff4395b.zip | |
dmaengine: ste_dma40: indicate granularity on channels
The ste_dma40 has burst level granularity on the residue
registers, which is necessary for some clients to know,
notably the UART. Before this patch we get this message:
uart-pl011 80007000.uart: RX DMA disabled - no residue processing
This patch fixes it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 2f0852dfbd1b..a6620b671d1d 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2838,6 +2838,7 @@ static void d40_ops_init(struct d40_base *base, struct dma_device *dev) dev->device_pause = d40_pause; dev->device_resume = d40_resume; dev->device_terminate_all = d40_terminate_all; + dev->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; dev->dev = base->dev; } |