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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
commitb20732900e4636a467c0183a47f7396700f5f743 (patch)
tree42f079ff82e701ebcb76829974b4caca3e5b6798 /Documentation/devicetree/bindings/sound/fsl,imx-asrc.yaml
parentAdding upstream version 6.8.12. (diff)
downloadlinux-b20732900e4636a467c0183a47f7396700f5f743.tar.xz
linux-b20732900e4636a467c0183a47f7396700f5f743.zip
Adding upstream version 6.9.7.upstream/6.9.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,imx-asrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Asynchronous Sample Rate Converter (ASRC) Controller
+
+description:
+ The Asynchronous Sample Rate Converter (ASRC) converts the sampling rate of
+ a signal associated with an input clock into a signal associated with a
+ different output clock. The driver currently works as a Front End of DPCM
+ with other Back Ends Audio controller such as ESAI, SSI and SAI. It has
+ three pairs to support three substreams within totally 10 channels.
+
+maintainers:
+ - Shawn Guo <shawnguo@kernel.org>
+ - Sascha Hauer <s.hauer@pengutronix.de>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,imx35-asrc
+ - fsl,imx53-asrc
+ - fsl,imx8qm-asrc
+ - fsl,imx8qxp-asrc
+ - items:
+ - enum:
+ - fsl,imx6sx-asrc
+ - fsl,imx6ul-asrc
+ - const: fsl,imx53-asrc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dmas:
+ maxItems: 6
+
+ dma-names:
+ items:
+ - const: rxa
+ - const: rxb
+ - const: rxc
+ - const: txa
+ - const: txb
+ - const: txc
+
+ clocks:
+ maxItems: 19
+
+ clock-names:
+ items:
+ - const: mem
+ - const: ipg
+ - const: asrck_0
+ - const: asrck_1
+ - const: asrck_2
+ - const: asrck_3
+ - const: asrck_4
+ - const: asrck_5
+ - const: asrck_6
+ - const: asrck_7
+ - const: asrck_8
+ - const: asrck_9
+ - const: asrck_a
+ - const: asrck_b
+ - const: asrck_c
+ - const: asrck_d
+ - const: asrck_e
+ - const: asrck_f
+ - const: spba
+
+ fsl,asrc-rate:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The mutual sample rate used by DPCM Back Ends
+
+ fsl,asrc-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The mutual sample width used by DPCM Back Ends
+ enum: [16, 24]
+
+ fsl,asrc-clk-map:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Defines clock map used in driver
+ <0> - select the map for asrc0 in imx8qm/imx8qxp
+ <1> - select the map for asrc1 in imx8qm/imx8qxp
+ enum: [0, 1]
+
+ big-endian:
+ type: boolean
+ description:
+ If this property is absent, the little endian mode will be in use as
+ default. Otherwise, the big endian mode will be in use for all the
+ device registers.
+
+ fsl,asrc-format:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Defines a mutual sample format used by DPCM Back Ends, which can
+ replace the fsl,asrc-width. The value is 2 (S16_LE), or 6 (S24_LE).
+ enum: [2, 6]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clocks
+ - clock-names
+ - fsl,asrc-rate
+ - fsl,asrc-width
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-asrc
+ - fsl,imx8qxp-asrc
+ then:
+ required:
+ - fsl,asrc-clk-map
+ else:
+ properties:
+ fsl,asrc-clk-map: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/imx6qdl-clock.h>
+ asrc: asrc@2034000 {
+ compatible = "fsl,imx53-asrc";
+ reg = <0x02034000 0x4000>;
+ interrupts = <0 50 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX6QDL_CLK_ASRC_IPG>,
+ <&clks IMX6QDL_CLK_ASRC_MEM>, <&clks 0>,
+ <&clks 0>, <&clks 0>, <&clks 0>, <&clks 0>,
+ <&clks 0>, <&clks 0>, <&clks 0>, <&clks 0>,
+ <&clks 0>, <&clks 0>, <&clks 0>, <&clks 0>,
+ <&clks IMX6QDL_CLK_ASRC>, <&clks 0>, <&clks 0>,
+ <&clks IMX6QDL_CLK_SPBA>;
+ clock-names = "mem", "ipg", "asrck_0",
+ "asrck_1", "asrck_2", "asrck_3", "asrck_4",
+ "asrck_5", "asrck_6", "asrck_7", "asrck_8",
+ "asrck_9", "asrck_a", "asrck_b", "asrck_c",
+ "asrck_d", "asrck_e", "asrck_f", "spba";
+ dmas = <&sdma 17 23 1>, <&sdma 18 23 1>, <&sdma 19 23 1>,
+ <&sdma 20 23 1>, <&sdma 21 23 1>, <&sdma 22 23 1>;
+ dma-names = "rxa", "rxb", "rxc",
+ "txa", "txb", "txc";
+ fsl,asrc-rate = <48000>;
+ fsl,asrc-width = <16>;
+ };