From f48d14c218ccaaf7c22f84582d4bdb5fa2234c76 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Mon, 27 May 2019 22:14:53 +0200 Subject: [PATCH] dt-bindings: arm64: allwinner: h6: Add binding for DMA controller MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Rob Herring Signed-off-by: Clément Péron Acked-by: Maxime Ripard Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/sun6i-dma.txt | 9 +++++++-- 1 file 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: -- 2.11.0