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    SubjectRE: [PATCH V2 1/2] bindings: fsl-imx-sdma: Document 'HDMI Audio' transfer
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    Gentle ping...

    BR
    Joy Zou
    > -----Original Message-----
    > From: Joy Zou
    > Sent: 2022年8月2日 11:58
    > To: vkoul@kernel.org
    > Cc: S.J. Wang <shengjiu.wang@nxp.com>; 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 <linux-imx@nxp.com>; 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
    >
    > Gentle ping...
    >
    > 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 <shengjiu.wang@nxp.com>; 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 <linux-imx@nxp.com>; 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 <joy.zou@nxp.com>
    > ---
    > 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 <vkoul@kernel.org>
    > +
    > +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 shift val>.
    > + - 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

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