Unverified Commit 06b72824 authored by Jerome Brunet's avatar Jerome Brunet Committed by Mark Brown
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ASoC: meson: aiu: add audio output dt-bindings 



Add the dt-bindings and documentation of the AIU audio controller.
This component provides most of the audio outputs found on the Amlogic
Gx SoC family.

Signed-off-by: default avatarJerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200213155159.3235792-4-jbrunet@baylibre.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9c29fd9b

Documentation/devicetree/bindings/sound/amlogic,aiu.yaml

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# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/sound/amlogic,aiu.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Amlogic AIU audio output controller



maintainers:

  - Jerome Brunet <jbrunet@baylibre.com>



properties:

  $nodename:

    pattern: "^audio-controller@.*"



  "#sound-dai-cells":

    const: 2



  compatible:

    items:

      - enum:

        - amlogic,aiu-gxbb

        - amlogic,aiu-gxl

      - const:

          amlogic,aiu



  clocks:

    items:

      - description: AIU peripheral clock

      - description: I2S peripheral clock

      - description: I2S output clock

      - description: I2S master clock

      - description: I2S mixer clock

      - description: SPDIF peripheral clock

      - description: SPDIF output clock

      - description: SPDIF master clock

      - description: SPDIF master clock multiplexer



  clock-names:

    items:

      - const: pclk

      - const: i2s_pclk

      - const: i2s_aoclk

      - const: i2s_mclk

      - const: i2s_mixer

      - const: spdif_pclk

      - const: spdif_aoclk

      - const: spdif_mclk

      - const: spdif_mclk_sel



  interrupts:

    items:

      - description: I2S interrupt line

      - description: SPDIF interrupt line



  interrupt-names:

    items:

      - const: i2s

      - const: spdif



  reg:

    maxItems: 1



  resets:

    maxItems: 1



required:

  - "#sound-dai-cells"

  - compatible

  - clocks

  - clock-names

  - interrupts

  - interrupt-names

  - reg

  - resets



examples:

  - |

    #include <dt-bindings/clock/gxbb-clkc.h>

    #include <dt-bindings/interrupt-controller/irq.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/reset/amlogic,meson-gxbb-reset.h>



    aiu: audio-controller@5400 {

        compatible = "amlogic,aiu-gxl", "amlogic,aiu";

        #sound-dai-cells = <2>;

        reg = <0x0 0x5400 0x0 0x2ac>;

        interrupts = <GIC_SPI 48 IRQ_TYPE_EDGE_RISING>,

                     <GIC_SPI 50 IRQ_TYPE_EDGE_RISING>;

        interrupt-names = "i2s", "spdif";

        clocks = <&clkc CLKID_AIU_GLUE>,

                 <&clkc CLKID_I2S_OUT>,

                 <&clkc CLKID_AOCLK_GATE>,

                 <&clkc CLKID_CTS_AMCLK>,

                 <&clkc CLKID_MIXER_IFACE>,

                 <&clkc CLKID_IEC958>,

                 <&clkc CLKID_IEC958_GATE>,

                 <&clkc CLKID_CTS_MCLK_I958>,

                 <&clkc CLKID_CTS_I958>;

        clock-names = "pclk",

                      "i2s_pclk",

                      "i2s_aoclk",

                      "i2s_mclk",

                      "i2s_mixer",

                      "spdif_pclk",

                      "spdif_aoclk",

                      "spdif_mclk",

                      "spdif_mclk_sel";

        resets = <&reset RESET_AIU>;

    };

include/dt-bindings/sound/meson-aiu.h

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/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __DT_MESON_AIU_H

#define __DT_MESON_AIU_H



#define AIU_CPU			0

#define AIU_HDMI		1

#define AIU_ACODEC		2



#define CPU_I2S_FIFO		0

#define CPU_SPDIF_FIFO		1

#define CPU_I2S_ENCODER		2

#define CPU_SPDIF_ENCODER	3



#define CTRL_I2S		0

#define CTRL_PCM		1

#define CTRL_OUT		2



#endif /* __DT_MESON_AIU_H */