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([2409:40c2:501a:6e15:dc3f:c23f:e55e:d03d]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-327b43d488dsm9043527eec.29.2026.08.18.07.29.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Aug 2026 07:29:34 -0700 (PDT) From: Bhargav Joshi Date: Tue, 18 Aug 2026 19:58:43 +0530 Subject: [PATCH v2 1/7] dt-bindings: dma: ti,cppi41: Convert to DT schema Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260818-ti-am33-usb-v2-1-66fd44d66824@gmail.com> References: <20260818-ti-am33-usb-v2-0-66fd44d66824@gmail.com> In-Reply-To: <20260818-ti-am33-usb-v2-0-66fd44d66824@gmail.com> To: Vignesh Raghavendra , Vinod Koul , Frank Li , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Andrzej Siewior , Neil Armstrong , Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Ravi B , Kumar Gupta , Sergei Shtylyov Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-phy@lists.infradead.org, linux-omap@vger.kernel.org, goledhruva@gmail.com, m-chawdhry@ti.com, daniel.baluta@gmail.com, simona.toaca@nxp.com, j.bhargav.u@gmail.com X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787063337; l=5446; i=j.bhargav.u@gmail.com; h=from:subject:message-id; bh=GN8OC0qmWePc65/nVwGP+m4XJ9TN93CBwZAGUXRbCQA=; b=/ICcEratZ3o2rpqEdLfMo+aQDlLKJjcSt5vgcEdD+6hRQzXd+n584IbHXRbjb3nvO6Zd16Afc gyQClNz1JY3AIE+fwrKHNSLQmXV0KSnbXKrPyKXfsHd7uaHpIO+dQOx X-Developer-Key: i=j.bhargav.u@gmail.com; a=ed25519; pk=IqNDwUZKECEA+n8wXctFLBbYL9NhFstZNbOznm/nX1k= Convert TI CPPI 4.1 DMA controller text bindings to DT schema. Add ti,am3359-cppi41 and ti,da830-cppi41 into single schema since they share the same hardware IP block and driver. Add undocumented #dma-requests and power-domains properties to match existing DTS usage. Signed-off-by: Bhargav Joshi --- .../devicetree/bindings/dma/ti/ti,cppi41.yaml | 109 +++++++++++++++++++++ .../devicetree/bindings/usb/am33xx-usb.txt | 14 --- .../devicetree/bindings/usb/da8xx-usb.txt | 12 --- 3 files changed, 109 insertions(+), 26 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/ti/ti,cppi41.yaml b/Documentation/devicetree/bindings/dma/ti/ti,cppi41.yaml new file mode 100644 index 000000000000..a8c28e8ada07 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ti/ti,cppi41.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/ti/ti,cppi41.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI CPPI41 DMA Controller + +maintainers: + - Sebastian Andrzej Siewior + +properties: + compatible: + enum: + - ti,am3359-cppi41 + - ti,da830-cppi41 + + reg: + minItems: 3 + maxItems: 4 + + reg-names: + minItems: 3 + maxItems: 4 + + interrupts: + maxItems: 1 + + interrupt-names: + const: glue + + "#dma-cells": + const: 2 + + dma-channels: + description: Number of DMA channels supported. + $ref: /schemas/types.yaml#/definitions/uint32 + + dma-requests: + description: Number of DMA requests supported. + $ref: /schemas/types.yaml#/definitions/uint32 + + power-domains: + maxItems: 1 + + "#dma-channels": + description: Deprecated, use dma-channels instead. + deprecated: true + + "#dma-requests": + description: Deprecated, use dma-requests instead. + deprecated: true + +required: + - compatible + - reg + - reg-names + - "#dma-cells" + - dma-channels + +allOf: + - $ref: /schemas/dma/dma-controller.yaml# + - if: + properties: + compatible: + contains: + const: ti,am3359-cppi41 + then: + properties: + reg: + minItems: 4 + reg-names: + items: + - const: glue + - const: controller + - const: scheduler + - const: queuemgr + power-domains: false + required: + - interrupt-names + - interrupts + - dma-requests + else: + properties: + reg: + maxItems: 3 + reg-names: + items: + - const: controller + - const: scheduler + - const: queuemgr + +unevaluatedProperties: false + +examples: + - | + dma-controller@7402000 { + compatible = "ti,am3359-cppi41"; + reg = <0x47400000 0x1000>, + <0x47402000 0x1000>, + <0x47403000 0x1000>, + <0x47404000 0x4000>; + reg-names = "glue", "controller", "scheduler", "queuemgr"; + interrupts = <17>; + interrupt-names = "glue"; + #dma-cells = <2>; + dma-channels = <30>; + dma-requests = <256>; + }; diff --git a/Documentation/devicetree/bindings/usb/am33xx-usb.txt b/Documentation/devicetree/bindings/usb/am33xx-usb.txt index 654ffc62d013..8431de346129 100644 --- a/Documentation/devicetree/bindings/usb/am33xx-usb.txt +++ b/Documentation/devicetree/bindings/usb/am33xx-usb.txt @@ -51,20 +51,6 @@ USB The controller should have an "usb" alias numbered properly in the alias node. -DMA -~~~ -- compatible: ti,am3359-cppi41 -- reg: offset and length of the following register spaces: USBSS, USB - CPPI DMA Controller, USB CPPI DMA Scheduler, USB Queue Manager -- reg-names: glue, controller, scheduler, queuemgr -- #dma-cells: should be set to 2. The first number represents the - endpoint number (0 … 14 for endpoints 1 … 15 on instance 0 and 15 … 29 - for endpoints 1 … 15 on instance 1). The second number is 0 for RX and - 1 for TX transfers. -- dma-channels: should be set to 30 representing the 15 endpoints for - each USB instance. -- #dma-channels: deprecated - Example: ~~~~~~~~ The following example contains all the nodes as used on am335x-evm: diff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt index fb2027a7d80d..00320d92d3bb 100644 --- a/Documentation/devicetree/bindings/usb/da8xx-usb.txt +++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt @@ -27,18 +27,6 @@ Optional properties: ~~~~~~~~~~~~~~~~~~~~ - vbus-supply: Phandle to a regulator providing the USB bus power. -DMA -~~~ -- compatible: ti,da830-cppi41 -- reg: offset and length of the following register spaces: CPPI DMA Controller, - CPPI DMA Scheduler, Queue Manager -- reg-names: "controller", "scheduler", "queuemgr" -- #dma-cells: should be set to 2. The first number represents the - channel number (0 … 3 for endpoints 1 … 4). - The second number is 0 for RX and 1 for TX transfers. -- dma-channels: should be set to 4 representing the 4 endpoints. -- #dma-channels: deprecated - Example: usb_phy: usb-phy { compatible = "ti,da830-usb-phy"; -- 2.55.0