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Date: Thu, 23 Sep 2021 23:35:31 +0100 From: Jon Hunter <jonathanh@...dia.com> To: Akhil R <akhilrajeev@...dia.com> CC: <dan.j.williams@...el.com>, <dmaengine@...r.kernel.org>, <kyarlagadda@...dia.com>, <ldewangan@...dia.com>, <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>, <p.zabel@...gutronix.de>, <rgumasta@...dia.com>, <thierry.reding@...il.com>, <vkoul@...nel.org> Subject: Re: [PATCH v7 1/4] dt-bindings: dmaengine: Add doc for tegra gpcdma On 23/09/2021 08:51, Akhil R wrote: > Add DT binding document for Nvidia Tegra GPCDMA controller. > > Signed-off-by: Rajesh Gumasta <rgumasta@...dia.com> > Signed-off-by: Akhil R <akhilrajeev@...dia.com> > --- > .../bindings/dma/nvidia,tegra186-gpc-dma.yaml | 98 ++++++++++++++++++++++ > 1 file changed, 98 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml > > diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml > new file mode 100644 > index 0000000..3dcf5a1 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml > @@ -0,0 +1,98 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/nvidia,tegra186-gpc-dma.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Nvidia Tegra GPC DMA Controller Device Tree Bindings If you ... grep -r "title: NVIDIA" Documentation/devicetree/ You will find the titles all start "title: NVIDIA" and not Nvidia. Always good to be consistent. > + > +description: | > + The Tegra Genernal Purpose Central (GPC) DMA controller is used for faster s/Genernal/General > + data transfers between memory to memory, memory to device and device to > + memory. > + > +maintainers: > + - Jon Hunter <jonathanh@...dia.com> > + - Rajesh Gumasta <rgumasta@...dia.com> > + > +allOf: > + - $ref: "dma-controller.yaml#" > + > +properties: > + "#dma-cells": > + const: 1 > + > + compatible: > + - enum: > + - nvidia,tegra186-gpcdma > + - nvidia,tegra194-gpcdma > + > + reg: > + maxItems: 1 > + > + interrupts: > + minItems: 1 > + maxItems: 32 > + > + resets: > + maxItems: 1 > + > + reset-names: > + const: gpcdma > + > + iommus: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - interrupts > + - resets > + - reset-names > + - "#dma-cells" > + - iommus > + > +examples: > + - | > + gpcdma: dma@...0000 { The upstream convention is ... gpcdma: dma-controller@...0000 { > + compatible = "nvidia,tegra186-gpcdma"; > + reg = <0x0 0x2600000 0x0 0x210000>; > + resets = <&bpmp TEGRA186_RESET_GPCDMA>; > + reset-names = "gpcdma"; > + interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>; > + #dma-cells = <1>; > + iommus = <&smmu TEGRA_SID_GPCDMA_0>; > + dma-coherent; > + }; > +... > Please run ... $ make dt_binding_check CHKDT Documentation/devicetree/bindings/processed-schema-examples.json ./Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml: while scanning for the next token found character that cannot start any token in "<unicode string>", line 34, column 1 For more details see ... https://www.kernel.org/doc/Documentation/devicetree/writing-schema.rst Jon -- nvpublic
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