From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: [PATCH 1/2] dt-bindings: dmaengine: Add Mediatek High-Speed DMA controller bindings Date: Mon, 15 May 2017 14:59:26 +0800 Message-ID: <07cc981fbf9620459d1ac63e8720eaa2dd110048.1494830885.git.sean.wang@mediatek.com> References: Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: dan.j.williams@intel.com, vinod.koul@intel.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, keyhaede@gmail.com, Sean Wang List-Id: devicetree@vger.kernel.org From: Sean Wang Document the devicetree bindings for Mediatek High-Speed DMA controller which could be found on MT7623 SoC or other similar Mediatek SoCs. Signed-off-by: Sean Wang --- .../devicetree/bindings/dma/mtk-hsdma.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/mtk-hsdma.txt diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt new file mode 100644 index 0000000..62cdda4 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt @@ -0,0 +1,30 @@ +Mediatek High-Speed DMA Controller +================================== + +This driver follows the generic DMA bindings defined in dma/dma.txt. + +Required properties: + +- compatible: Must be one of + "mediatek,mt7623-hsdma". +- reg: Should contain the register's base address and length. +- interrupts: Should contain a reference to the interrupt used by this + device. +- clocks: Should be the clock specifiers corresponding to the entry in + clock-names property. +- clock-names: Should contain "hsdma" entries. +- #dma-cells: The length of the DMA specifier, must be <1>. This one cell + in dmas property of a client device represents the channel + number. +Example: + + hsdma: hsdma@1b007000 { + compatible = "mediatek,mt7623-hsdma"; + reg = <0 0x1b007000 0 0x1000>; + interrupts = ; + clocks = <ðsys CLK_ETHSYS_HSDMA>; + clock-names = "hsdma"; + status = "okay"; + }; + +DMA clients must use the format described in dma/dma.txt file. -- 2.7.4