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authorJernej Skrabec <jernej.skrabec@siol.net>2019-05-27 22:14:53 +0200
committerVinod Koul <vkoul@kernel.org>2019-06-04 17:56:59 +0530
commitf48d14c218ccaaf7c22f84582d4bdb5fa2234c76 (patch)
tree8f586376ad1b45709f11989916147ae7148a1a78 /Documentation
parentdc161064beb83c668e0f85766b92b1e7ed186e58 (diff)
dt-bindings: arm64: allwinner: h6: Add binding for DMA controller
DMA in H6 is similar to other DMA controller, except it is first which supports more than 32 request sources and has 16 channels. It also needs additional clock to be enabled. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Clément Péron <peron.clem@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/dma/sun6i-dma.txt9
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/dma/sun6i-dma.txt b/Documentation/devicetree/bindings/dma/sun6i-dma.txt
index 7fccc20d8331..cae31f4e77ba 100644
--- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt
+++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt
@@ -28,12 +28,17 @@ Example:
};
------------------------------------------------------------------------------
-For A64 DMA controller:
+For A64 and H6 DMA controller:
Required properties:
-- compatible: "allwinner,sun50i-a64-dma"
+- compatible: Must be one of
+ "allwinner,sun50i-a64-dma"
+ "allwinner,sun50i-h6-dma"
- dma-channels: Number of DMA channels supported by the controller.
Refer to Documentation/devicetree/bindings/dma/dma.txt
+- clocks: In addition to parent AHB clock, it should also contain mbus
+ clock (H6 only)
+- clock-names: Should contain "bus" and "mbus" (H6 only)
- all properties above, i.e. reg, interrupts, clocks, resets and #dma-cells
Optional properties: