On Sun, Mar 01, 2020 at 01:24:18PM +0800, Shengjiu Wang wrote:
EASRC (Enhanced Asynchronous Sample Rate Converter) is a new IP module found on i.MX8MN.
Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com
.../devicetree/bindings/sound/fsl,easrc.yaml | 96 +++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,easrc.yaml
diff --git a/Documentation/devicetree/bindings/sound/fsl,easrc.yaml b/Documentation/devicetree/bindings/sound/fsl,easrc.yaml new file mode 100644 index 000000000000..500af8f0c8f0 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,easrc.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: GPL-2.0
Dual license new bindings:
(GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/fsl,easrc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml#
+title: NXP Asynchronous Sample Rate Converter (ASRC) Controller
+maintainers:
- Shengjiu Wang shengjiu.wang@nxp.com
+properties:
- $nodename:
- pattern: "^easrc@.*"
- compatible:
- oneOf:
- items:
You can drop oneOf and items here.
- enum:- fsl,imx8mn-easrc
Blank line between properties please.
- reg:
- maxItems: 1
- interrupts:
- maxItems: 1
- clocks:
- items:
- description: Peripheral clock- clock-names:
- items:
- const: mem- dmas:
- maxItems: 8
- dma-names:
- oneOf:
Drop oneOf as there is only one.
- items:- const: ctx0_rx- const: ctx0_tx- const: ctx1_rx- const: ctx1_tx- const: ctx2_rx- const: ctx2_tx- const: ctx3_rx- const: ctx3_tx- fsl,easrc-ram-script-name:
- $ref: /schemas/types.yaml#/definitions/string
- description: The coefficient table for the filters
Need to define the exact string(s).
- fsl,asrc-rate:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Defines a mutual sample rate used by DPCM Back Ends
Constraints?
- fsl,asrc-format:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Defines a mutual sample format used by DPCM Back Ends
Constraints?
+required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- dmas
- dma-name
dma-names
- fsl,easrc-ram-script-name
- fsl,asrc-rate
- fsl,asrc-format
+examples:
- |
- #include <dt-bindings/clock/imx8mn-clock.h>
- easrc: easrc@300C0000 {
compatible = "fsl,imx8mn-easrc";reg = <0x0 0x300C0000 0x0 0x10000>;interrupts = <0x0 122 0x4>;clocks = <&clk IMX8MN_CLK_ASRC_ROOT>;clock-names = "mem";dmas = <&sdma2 16 23 0> , <&sdma2 17 23 0>,<&sdma2 18 23 0> , <&sdma2 19 23 0>,<&sdma2 20 23 0> , <&sdma2 21 23 0>,<&sdma2 22 23 0> , <&sdma2 23 23 0>;dma-names = "ctx0_rx", "ctx0_tx","ctx1_rx", "ctx1_tx","ctx2_rx", "ctx2_tx","ctx3_rx", "ctx3_tx";fsl,easrc-ram-script-name = "imx/easrc/easrc-imx8mn.bin";fsl,asrc-rate = <8000>;fsl,asrc-format = <2>;status = "disabled";
Don't show status in examples.
- };
-- 2.21.0