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Wang" , "robh+dt@kernel.org" , "krzysztof.kozlowski+dt@linaro.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , dl-linux-imx , "dmaengine@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: FW: [PATCH V2 1/2] bindings: fsl-imx-sdma: Document 'HDMI Audio' transfer Thread-Topic: [PATCH V2 1/2] bindings: fsl-imx-sdma: Document 'HDMI Audio' transfer Thread-Index: AQHYb0Sbzg3yRatDsU+sUlyHgY6zya2baFlw Date: Tue, 2 Aug 2022 03:58:02 +0000 Message-ID: References: <20220524080337.1322240-1-joy.zou@nxp.com> In-Reply-To: <20220524080337.1322240-1-joy.zou@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 5baaeada-075a-43b9-a625-08da743b326e x-ms-traffictypediagnostic: DBAPR04MB7334:EE_ x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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BR Joy Zou -----Original Message----- From: Joy Zou Sent: 2022年5月24日 16:02 To: vkoul@kernel.org Cc: S.J. Wang ; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; shawnguo@kernel.org; s.hauer@pengutronix.de; kernel@pengutronix.de; festevam@gmail.com; dl-linux-imx ; dmaengine@vger.kernel.org; devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org Subject: [PATCH V2 1/2] bindings: fsl-imx-sdma: Document 'HDMI Audio' transfer Add HDMI Audio transfer type. convert the sdma bindings txt into yaml in v2. Signed-off-by: Joy Zou --- Changes since v1: convert the sdma bindings txt into yaml in v2. --- .../devicetree/bindings/dma/fsl-imx-sdma.yaml | 135 ++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.yaml diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.yaml b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.yaml new file mode 100644 index 000000000000..5b4f7a09a395 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.yaml @@ -0,0 +1,135 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl-imx-sdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX + +maintainers: + - Vinod Koul + +allOf: + - $ref: "dma-controller.yaml#" + +# Everything else is described in the common file + +properties: + compatible: + items: + - enum: + - fsl,imx25-sdma + - fsl,imx31-sdma + - fsl,imx31-to1-sdma + - fsl,imx31-to2-sdma + - fsl,imx35-to1-sdma + - fsl,imx35-to2-sdma + - fsl,imx51-sdma + - fsl,imx53-sdma + - fsl,imx6q-sdma + - fsl,imx7d-sdma + - fsl,imx6sx-sdma + - fsl,imx6ul-sdma + - fsl,imx8mm-sdma + - fsl,imx8mn-sdma + - fsl,imx8mp-sdma + - enum: + - fsl,imx35-sdma + - fsl,imx8mq-sdma + + reg: + description: Should contain SDMA registers location and length + + interrupts: + description: Should contain SDMA interrupt + + fsl,sdma-ram-script-name: + $ref: /schemas/types.yaml#/definitions/string + description: Should contain the full path of SDMA RAM scripts firmware. + + "#dma-cells": + const: 3 + description: | + The first cell: request/event ID + + The second cell: peripheral types ID + enum: + - MCU domain SSI: 0 + - Shared SSI: 1 + - MMC: 2 + - SDHC: 3 + - MCU domain UART: 4 + - Shared UART: 5 + - FIRI: 6 + - MCU domain CSPI: 7 + - Shared CSPI: 8 + - SIM: 9 + - ATA: 10 + - CCM: 11 + - External peripheral: 12 + - Memory Stick Host Controller: 13 + - Shared Memory Stick Host Controller: 14 + - DSP: 15 + - Memory: 16 + - FIFO type Memory: 17 + - SPDIF: 18 + - IPU Memory: 19 + - ASRC: 20 + - ESAI: 21 + - SSI Dual FIFO: 22 + description: needs firmware more than ver 2 + - Shared ASRC: 23 + - SAI: 24 + - HDMI Audio: 25 + + The third cell: transfer priority ID + enum: + - High: 0 + - Medium: 1 + - Low: 2 + + gpr: + description: The phandle to the General Purpose Register (GPR) node + + fsl,sdma-event-remap: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: | + Register bits of sdma event remap, the format is . + - reg: the GPR register offset + - shift: the bit position inside the GPR register + - val: the value of the bit (0 or 1) + +required: + - compatible + - reg + - interrupts + - fsl,sdma-ram-script-name + - "#dma-cells" + +unevaluatedProperties: false + +examples: + - | + sdma: dma-controller@83fb0000 { + compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; + reg = <0x83fb0000 0x4000>; + interrupts = <6>; + #dma-cells = <3>; + fsl,sdma-ram-script-name = "sdma-imx51.bin"; + }; + +#DMA clients connected to the i.MX SDMA controller must use the format +#described in the dma-controller.yaml file. + - | + ssi2: ssi@70014000 { + compatible = "fsl,imx51-ssi", "fsl,imx21-ssi"; + reg = <0x70014000 0x4000>; + interrupts = <30>; + clocks = <&clks 49>; + dmas = <&sdma 24 1 0>, + <&sdma 25 1 0>; + dma-names = "rx", "tx"; + fsl,fifo-depth = <15>; + }; + +... -- 2.25.1