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author | Vinod Koul <vinod.koul@intel.com> | 2016-05-17 07:44:07 +0300 |
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committer | Vinod Koul <vinod.koul@intel.com> | 2016-05-17 07:44:07 +0300 |
commit | 95c4dc7b2c622a3cc41535f67f46dd31332186c8 (patch) | |
tree | 8d391b878824093d3f8599e521f40bebc3200983 /Documentation | |
parent | a365c9685438713dbf88828282c4699f571b97de (diff) | |
parent | 0eef727a47c5ead7d8cf3373bdd81f280303e056 (diff) | |
download | linux-95c4dc7b2c622a3cc41535f67f46dd31332186c8.tar.xz |
Merge branch 'topic/bcm' into for-linus
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt index 1396078d15ac..baf9b34d20bf 100644 --- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt +++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt @@ -12,6 +12,10 @@ Required properties: - reg: Should contain DMA registers location and length. - interrupts: Should contain the DMA interrupts associated to the DMA channels in ascending order. +- interrupt-names: Should contain the names of the interrupt + in the form "dmaXX". + Use "dma-shared-all" for the common interrupt line + that is shared by all dma channels. - #dma-cells: Must be <1>, the cell in the dmas property of the client device represents the DREQ number. - brcm,dma-channel-mask: Bit mask representing the channels @@ -34,13 +38,35 @@ dma: dma@7e007000 { <1 24>, <1 25>, <1 26>, + /* dma channel 11-14 share one irq */ <1 27>, + <1 27>, + <1 27>, + <1 27>, + /* unused shared irq for all channels */ <1 28>; + interrupt-names = "dma0", + "dma1", + "dma2", + "dma3", + "dma4", + "dma5", + "dma6", + "dma7", + "dma8", + "dma9", + "dma10", + "dma11", + "dma12", + "dma13", + "dma14", + "dma-shared-all"; #dma-cells = <1>; brcm,dma-channel-mask = <0x7f35>; }; + DMA clients connected to the BCM2835 DMA controller must use the format described in the dma.txt file, using a two-cell specifier for each channel. |