diff options
| author | Robin Gong <yibin.gong@nxp.com> | 2017-07-04 16:04:36 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | 70219f0374dfb577af1d4a8a611a7e21f0bca34c (patch) | |
| tree | 15412f00ed28218b03fa6642c8318d0265fe81a3 /Documentation | |
| parent | 71832a52a20e6b88cfcd44f6ccb9a07b75d30cc7 (diff) | |
MLK-15330-3 dma: fsl-edma-v3: add dual fifo support
There is Audio dual fifo cause that fill fifo one by one and
loop back after every minor loop:
-- fill the first 32bit width fifo
-- fill the next 32bit width fifo
-- +MLOFF signed offset after the above two FIFOs filled
-- loop back to the first step to handle the next minor loop.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/fsl-edma-v3.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt b/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt index 9c84de7e402c..222ccf8605b0 100644 --- a/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt +++ b/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt @@ -22,6 +22,8 @@ Required properties: 0: transmit, 1: receive. BIT(1): local or remote access: 0: local, 1: remote. + BIT(2): dualfifo case or not(only in Audio cyclic now): + 0: not dual fifo case, 1: dualfifo case. See the SoC's reference manual for all the supported request sources. - dma-channels : Number of channels supported by the controller |