Documentation/devicetree/bindings/slimbus/qcom,slim-ngd.yaml

   1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/slimbus/qcom,slim-ngd.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Qualcomm SoC SLIMBus Non Generic Device (NGD) Controller
   8
   9 maintainers:
  10   - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
  11   - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
  12
  13 description:
  14   SLIMBus NGD controller is a light-weight driver responsible for communicating
  15   with SLIMBus slaves directly over the bus using messaging interface and
  16   communicating with master component residing on ADSP for bandwidth and
  17   data-channel management
  18
  19 properties:
  20   compatible:
  21     enum:
  22       - qcom,slim-ngd-v1.5.0        # for MSM8996
  23       - qcom,slim-ngd-v2.1.0        # for SDM845
  24
  25   reg:
  26     maxItems: 1
  27
  28   "#address-cells":
  29     const: 1
  30
  31   "#size-cells":
  32     const: 0
  33
  34   dmas:
  35     maxItems: 2
  36
  37   dma-names:
  38     items:
  39       - const: rx
  40       - const: tx
  41
  42   interrupts:
  43     maxItems: 1
  44
  45   iommus:
  46     maxItems: 1
  47
  48 patternProperties:
  49   "^slim@[0-9a-f]+$":
  50     type: object
  51     $ref: slimbus.yaml#
  52     description:
  53       Each subnode represents an instance of NGD
  54
  55     properties:
  56       reg:
  57         maxItems: 1
  58
  59     unevaluatedProperties: false
  60
  61 required:
  62   - compatible
  63   - reg
  64   - "#address-cells"
  65   - "#size-cells"
  66   - dmas
  67   - dma-names
  68   - interrupts
  69
  70 additionalProperties: false
  71
  72 examples:
  73   - |
  74     #include <dt-bindings/gpio/gpio.h>
  75     #include <dt-bindings/interrupt-controller/arm-gic.h>
  76
  77     slim-ngd@171c0000 {
  78         compatible = "qcom,slim-ngd-v2.1.0";
  79         reg = <0x171c0000 0x2c000>;
  80         interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
  81
  82         dmas = <&slimbam 3>, <&slimbam 4>;
  83         dma-names = "rx", "tx";
  84         iommus = <&apps_smmu 0x1806 0x0>;
  85         #address-cells = <1>;
  86         #size-cells = <0>;
  87
  88         slim@1 {
  89             reg = <1>;
  90             #address-cells = <2>;
  91             #size-cells = <0>;
  92
  93             codec@1,0 {
  94                 compatible = "slim217,250";
  95                 reg = <1 0>;
  96                 slim-ifc-dev = <&wcd9340_ifd>;
  97
  98                 #sound-dai-cells = <1>;
  99
 100                 interrupts-extended = <&tlmm 54 IRQ_TYPE_LEVEL_HIGH>;
 101                 interrupt-controller;
 102                 #interrupt-cells = <1>;
 103
 104                 #clock-cells = <0>;
 105                 clock-frequency = <9600000>;
 106                 clock-output-names = "mclk";
 107                 qcom,micbias1-microvolt = <1800000>;
 108                 qcom,micbias2-microvolt = <1800000>;
 109                 qcom,micbias3-microvolt = <1800000>;
 110                 qcom,micbias4-microvolt = <1800000>;
 111
 112                 #address-cells = <1>;
 113                 #size-cells = <1>;
 114
 115                 reset-gpios = <&tlmm 64 GPIO_ACTIVE_HIGH>;
 116
 117                 /* Rest of the WCD9340 codec */
 118             };
 119         };
 120     };