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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-04-05 14:51:50 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-04-08 10:16:55 +0200 |
| commit | 1dc748b3b202cadf9b799874d9af8d441ee556bc (patch) | |
| tree | 58fd3c90a40e2d0128b0c7f36d63d7fc126bb20d /dts/Bindings/dma/dma.txt | |
| parent | 9688b49cd3bc0b61a019e8e1311236c9975a0777 (diff) | |
| download | barebox-1dc748b3b202cadf9b799874d9af8d441ee556bc.tar.gz barebox-1dc748b3b202cadf9b799874d9af8d441ee556bc.tar.xz | |
dts: update to v5.1-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/dma/dma.txt')
| -rw-r--r-- | dts/Bindings/dma/dma.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/dts/Bindings/dma/dma.txt b/dts/Bindings/dma/dma.txt index 6312fb00ce..eeb4e4d177 100644 --- a/dts/Bindings/dma/dma.txt +++ b/dts/Bindings/dma/dma.txt @@ -16,6 +16,9 @@ Optional properties: - dma-channels: Number of DMA channels supported by the controller. - dma-requests: Number of DMA request signals supported by the controller. +- dma-channel-mask: Bitmask of available DMA channels in ascending order + that are not reserved by firmware and are available to + the kernel. i.e. first channel corresponds to LSB. Example: @@ -29,6 +32,7 @@ Example: #dma-cells = <1>; dma-channels = <32>; dma-requests = <127>; + dma-channel-mask = <0xfffe> }; * DMA router |