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[188.155.176.92]) by smtp.gmail.com with ESMTPSA id e9-20020a5d5949000000b002103136623esm1230449wri.85.2022.05.29.07.17.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 29 May 2022 07:17:52 -0700 (PDT) Message-ID: Date: Sun, 29 May 2022 16:17:51 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH V3] dt-bindings: dma: fsl-edma: Convert to DT schema Content-Language: en-US To: "Peng Fan (OSS)" , vkoul@kernel.org, dmaengine@vger.kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, joy.zou@nxp.com, Peng Fan References: <20220527020507.392765-1-peng.fan@oss.nxp.com> From: Krzysztof Kozlowski In-Reply-To: <20220527020507.392765-1-peng.fan@oss.nxp.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220529_071758_481456_995A31E0 X-CRM114-Status: GOOD ( 18.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 27/05/2022 04:05, Peng Fan (OSS) wrote: > From: Peng Fan > > Convert the eDMA controller binding to DT schema. > > Signed-off-by: Peng Fan > --- > > V3: > Address Krzysztof's comments, for reg/interrupts/clock-names > > V2: > Typo fix > Correct interrupts/interrupt-names/AllOf > > > .../devicetree/bindings/dma/fsl,edma.yaml | 155 ++++++++++++++++++ > .../devicetree/bindings/dma/fsl-edma.txt | 111 ------------- > arch/arm64/boot/dts/freescale/imx93.dtsi | 2 +- > 3 files changed, 156 insertions(+), 112 deletions(-) > create mode 100644 Documentation/devicetree/bindings/dma/fsl,edma.yaml > delete mode 100644 Documentation/devicetree/bindings/dma/fsl-edma.txt > > diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml > new file mode 100644 > index 000000000000..050e6cd57727 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml > @@ -0,0 +1,155 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/fsl,edma.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Freescale enhanced Direct Memory Access(eDMA) Controller > + > +description: | > + The eDMA channels have multiplex capability by programmable > + memory-mapped registers. channels are split into two groups, called > + DMAMUX0 and DMAMUX1, specific DMA request source can only be multiplexed > + by any channel of certain group, DMAMUX0 or DMAMUX1, but not both. > + > +maintainers: > + - Peng Fan > + > +properties: > + compatible: > + oneOf: > + - enum: > + - fsl,vf610-edma > + - fsl,imx7ulp-edma > + - items: > + - const: fsl,ls1028a-edma > + - const: fsl,vf610-edma > + > + reg: > + minItems: 2 > + maxItems: 3 > + > + interrupts: > + minItems: 2 > + maxItems: 17 > + > + interrupt-names: > + minItems: 2 > + maxItems: 17 > + > + "#dma-cells": > + const: 2 > + > + dma-channels: > + const: 32 > + > + clocks: > + maxItems: 2 > + > + clock-names: > + maxItems: 2 > + > + big-endian: > + description: | > + If present registers and hardware scatter/gather descriptors of the > + eDMA are implemented in big endian mode, otherwise in little mode. > + type: boolean > + > +required: > + - "#dma-cells" > + - compatible > + - reg > + - interrupts > + - clocks > + - dma-channels > + > +allOf: > + - $ref: "dma-controller.yaml#" > + - if: > + properties: > + compatible: > + contains: > + const: fsl,vf610-edma > + then: > + properties: > + clock-names: > + items: > + - const: dmamux0 > + - const: dmamux1 > + interrupts: > + maxItems: 2 > + interrupt-names: > + items: > + - const: edma-tx > + - const: edma-err > + reg: > + maxItems: 3 > + > + - if: > + properties: > + compatible: > + contains: > + const: fsl,imx7ulp-edma > + then: > + properties: > + clock-names: > + items: > + - const: dma > + - const: dmamux0 > + interrupts: > + maxItems: 17 Looks good, although the information about order of interrupts is lost during conversion. The original bindings had: "total 16 channel interrupt and 1 error interrupt(located in the last)" Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel