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Signed-off-by: Charan Pedumuru Reviewed-by: Krzysztof Kozlowski --- arch/arm/boot/dts/nvidia/tegra20.dtsi | 2 +- arch/arm/boot/dts/nvidia/tegra30.dtsi | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/nvidia/tegra20.dtsi b/arch/arm/boot/dts/nvid= ia/tegra20.dtsi index 8da75ccc44025bf2978141082332b78bf94c38a9..882adb7f2f26392db2be386b0a9= 36453fc839049 100644 --- a/arch/arm/boot/dts/nvidia/tegra20.dtsi +++ b/arch/arm/boot/dts/nvidia/tegra20.dtsi @@ -284,7 +284,7 @@ flow-controller@60007000 { reg =3D <0x60007000 0x1000>; }; =20 - apbdma: dma@6000a000 { + apbdma: dma-controller@6000a000 { compatible =3D "nvidia,tegra20-apbdma"; reg =3D <0x6000a000 0x1200>; interrupts =3D , diff --git a/arch/arm/boot/dts/nvidia/tegra30.dtsi b/arch/arm/boot/dts/nvid= ia/tegra30.dtsi index f866fa7b55a509a0f66d3e49456565df0d74a678..2a4d93db81347e3e1dd942e6c10= a1ff5683402e7 100644 --- a/arch/arm/boot/dts/nvidia/tegra30.dtsi +++ b/arch/arm/boot/dts/nvidia/tegra30.dtsi @@ -431,7 +431,7 @@ flow-controller@60007000 { reg =3D <0x60007000 0x1000>; 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([122.174.61.156]) by smtp.googlemail.com with ESMTPSA id d2e1a72fcca58-74058dc768dsm8124025b3a.72.2025.05.06.00.09.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 May 2025 00:09:23 -0700 (PDT) From: Charan Pedumuru Date: Tue, 06 May 2025 07:07:28 +0000 Subject: [PATCH v2 2/2] dt-bindings: dma: nvidia,tegra20-apbdma: convert text based binding to json schema Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250506-nvidea-dma-v2-2-2427159c4c4b@gmail.com> References: <20250506-nvidea-dma-v2-0-2427159c4c4b@gmail.com> In-Reply-To: <20250506-nvidea-dma-v2-0-2427159c4c4b@gmail.com> To: Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Charan Pedumuru X-Mailer: b4 0.14.2 Update text binding to YAML. Changes during conversion: - Add a fallback for "nvidia,tegra30-apbdma" as it is compatible with the IP core on "nvidia,tegra20-apbdma". - Update examples and include appropriate file directives to resolve errors identified by `dt_binding_check` and `dtbs_check`. Signed-off-by: Charan Pedumuru --- .../bindings/dma/nvidia,tegra20-apbdma.txt | 44 ----------- .../bindings/dma/nvidia,tegra20-apbdma.yaml | 90 ++++++++++++++++++= ++++ 2 files changed, 90 insertions(+), 44 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.tx= t b/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.txt deleted file mode 100644 index 447fb44e7abeaa7ca3010b9518533e786cce56a8..000000000000000000000000000= 0000000000000 --- a/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.txt +++ /dev/null @@ -1,44 +0,0 @@ -* NVIDIA Tegra APB DMA controller - -Required properties: -- compatible: Should be "nvidia,-apbdma" -- reg: Should contain DMA registers location and length. This should inclu= de - all of the per-channel registers. -- interrupts: Should contain all of the per-channel DMA interrupts. -- clocks: Must contain one entry, for the module clock. - See ../clocks/clock-bindings.txt for details. -- resets : Must contain an entry for each entry in reset-names. - See ../reset/reset.txt for details. -- reset-names : Must include the following entries: - - dma -- #dma-cells : Must be <1>. This dictates the length of DMA specifiers in - client nodes' dmas properties. The specifier represents the DMA request - select value for the peripheral. For more details, consult the Tegra TRM= 's - documentation of the APB DMA channel control register REQ_SEL field. - -Examples: - -apbdma: dma@6000a000 { - compatible =3D "nvidia,tegra20-apbdma"; - reg =3D <0x6000a000 0x1200>; - interrupts =3D < 0 136 0x04 - 0 137 0x04 - 0 138 0x04 - 0 139 0x04 - 0 140 0x04 - 0 141 0x04 - 0 142 0x04 - 0 143 0x04 - 0 144 0x04 - 0 145 0x04 - 0 146 0x04 - 0 147 0x04 - 0 148 0x04 - 0 149 0x04 - 0 150 0x04 - 0 151 0x04 >; - clocks =3D <&tegra_car 34>; - resets =3D <&tegra_car 34>; - reset-names =3D "dma"; - #dma-cells =3D <1>; -}; diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.ya= ml b/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.yaml new file mode 100644 index 0000000000000000000000000000000000000000..8a6e0fc9897550815c21beb1799= 46856f8db1b16 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/nvidia,tegra20-apbdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra APB DMA Controller + +description: + The NVIDIA Tegra APB DMA controller is a hardware component that + enables direct memory access (DMA) on Tegra systems. It facilitates + data transfer between I/O devices and main memory without constant + CPU intervention. + +maintainers: + - Jonathan Hunter + +properties: + compatible: + oneOf: + - const: nvidia,tegra20-apbdma + - items: + - const: nvidia,tegra30-apbdma + - const: nvidia,tegra20-apbdma + + reg: + maxItems: 1 + + "#dma-cells": + const: 1 + + clocks: + maxItems: 1 + + interrupts: + description: + Should contain all of the per-channel DMA interrupts in + ascending order with respect to the DMA channel index. + minItems: 1 + maxItems: 32 + + resets: + maxItems: 1 + + reset-names: + const: dma + +required: + - compatible + - reg + - "#dma-cells" + - clocks + - interrupts + - resets + - reset-names + +allOf: + - $ref: dma-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + #include + dma-controller@6000a000 { + compatible =3D "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma"; + reg =3D <0x6000a000 0x1200>; + interrupts =3D <0 136 0x04>, + <0 137 0x04>, + <0 138 0x04>, + <0 139 0x04>, + <0 140 0x04>, + <0 141 0x04>, + <0 142 0x04>, + <0 143 0x04>, + <0 144 0x04>, + <0 145 0x04>, + <0 146 0x04>, + <0 147 0x04>, + <0 148 0x04>, + <0 149 0x04>, + <0 150 0x04>, + <0 151 0x04>; + clocks =3D <&tegra_car 34>; + resets =3D <&tegra_car 34>; + reset-names =3D "dma"; + #dma-cells =3D <1>; + }; +... --=20 2.43.0