Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/amlogic,axg-fifo.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Amlogic AXG Audio FIFO controllers
   8
   9 maintainers:
  10   - Jerome Brunet <jbrunet@baylibre.com>
  11
  12 properties:
  13   compatible:
  14     oneOf:
  15       - enum:
  16           - amlogic,axg-toddr
  17           - amlogic,axg-frddr
  18       - items:
  19           - enum:
  20               - amlogic,g12a-toddr
  21               - amlogic,sm1-toddr
  22           - const: amlogic,axg-toddr
  23       - items:
  24           - enum:
  25               - amlogic,g12a-frddr
  26               - amlogic,sm1-frddr
  27           - const: amlogic,axg-frddr
  28
  29   reg:
  30     maxItems: 1
  31
  32   "#sound-dai-cells":
  33     const: 0
  34
  35   clocks:
  36     items:
  37       - description: Peripheral clock
  38
  39   interrupts:
  40     maxItems: 1
  41
  42   resets:
  43     minItems: 1
  44     maxItems: 2
  45
  46   reset-names:
  47     minItems: 1
  48     maxItems: 2
  49
  50   amlogic,fifo-depth:
  51     $ref: /schemas/types.yaml#/definitions/uint32
  52     description: Size of the controller's fifo in bytes
  53
  54 required:
  55   - compatible
  56   - reg
  57   - "#sound-dai-cells"
  58   - clocks
  59   - interrupts
  60   - resets
  61   - amlogic,fifo-depth
  62
  63 allOf:
  64   - $ref: dai-common.yaml#
  65   - if:
  66       properties:
  67         compatible:
  68           contains:
  69             enum:
  70               - amlogic,g12a-toddr
  71               - amlogic,sm1-toddr
  72               - amlogic,g12a-frddr
  73               - amlogic,sm1-frddr
  74
  75     then:
  76       properties:
  77         resets:
  78           minItems: 2
  79         reset-names:
  80           items:
  81             - const: arb
  82             - const: rst
  83       required:
  84         - reset-names
  85
  86     else:
  87       properties:
  88         resets:
  89           maxItems: 1
  90         reset-names:
  91           const: arb
  92
  93 unevaluatedProperties: false
  94
  95 examples:
  96   - |
  97     #include <dt-bindings/clock/axg-audio-clkc.h>
  98     #include <dt-bindings/interrupt-controller/irq.h>
  99     #include <dt-bindings/interrupt-controller/arm-gic.h>
 100     #include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
 101     #include <dt-bindings/reset/amlogic,meson-g12a-audio-reset.h>
 102
 103     audio-controller@1c0 {
 104         compatible = "amlogic,g12a-frddr", "amlogic,axg-frddr";
 105         reg = <0x1c0 0x1c>;
 106         #sound-dai-cells = <0>;
 107         clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
 108         interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
 109         resets = <&arb>, <&clkc_audio AUD_RESET_FRDDR_A>;
 110         reset-names = "arb", "rst";
 111         amlogic,fifo-depth = <512>;
 112     };