From: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
Add binding documentation for the new shared interrupt properties:
* brcm,dma-channel-shared-mask
* brcm,dma-shared-irq-index
Signed-off-by: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
index 1396078..f9e84ee 100644
--- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
+++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
@@ -17,6 +17,10 @@ Required properties:
- brcm,dma-channel-mask: Bit mask representing the channels
not used by the firmware in ascending order,
i.e. first channel corresponds to LSB.
+- brcm,dma-channel-shared-mask: Bit mask representing the channels
+ that use a shared interrupt
+- brcm,dma-shared-irq-index: index of which of the interrupts mentioned
+ above is the shared interrupt
Example:
@@ -39,6 +43,8 @@ dma: dma@7e007000 {
#dma-cells = <1>;
brcm,dma-channel-mask = <0x7f35>;
+ brcm,dma-channel-shared-mask = <0x0780>;
+ brcm,dma-shared-irq-index = <11>;
};
DMA clients connected to the BCM2835 DMA controller must use the format
--
2.1.4
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