Documentation/devicetree/bindings/i2c/qcom,i2c-qup.yaml

   1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/i2c/qcom,i2c-qup.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Qualcomm Universal Peripheral (QUP) I2C controller
   8
   9 maintainers:
  10   - Andy Gross <agross@kernel.org>
  11   - Bjorn Andersson <bjorn.andersson@linaro.org>
  12   - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
  13
  14 allOf:
  15   - $ref: /schemas/i2c/i2c-controller.yaml#
  16
  17 properties:
  18   compatible:
  19     enum:
  20       - qcom,i2c-qup-v1.1.1     # for 8660, 8960 and 8064
  21       - qcom,i2c-qup-v2.1.1     # for 8974 v1
  22       - qcom,i2c-qup-v2.2.1     # for 8974 v2 and later
  23
  24   clocks:
  25     maxItems: 2
  26
  27   clock-names:
  28     items:
  29       - const: core
  30       - const: iface
  31
  32   clock-frequency:
  33     default: 100000
  34
  35   dmas:
  36     maxItems: 2
  37
  38   dma-names:
  39     items:
  40       - const: tx
  41       - const: rx
  42
  43   interrupts:
  44     maxItems: 1
  45
  46   pinctrl-0: true
  47   pinctrl-1: true
  48
  49   pinctrl-names:
  50     minItems: 1
  51     items:
  52       - const: default
  53       - const: sleep
  54
  55   reg:
  56     maxItems: 1
  57
  58 required:
  59   - compatible
  60   - clock-names
  61   - clocks
  62   - interrupts
  63   - reg
  64
  65 unevaluatedProperties: false
  66
  67 examples:
  68   - |
  69     #include <dt-bindings/clock/qcom,gcc-msm8998.h>
  70     #include <dt-bindings/interrupt-controller/arm-gic.h>
  71
  72     i2c@c175000 {
  73         compatible = "qcom,i2c-qup-v2.2.1";
  74         reg = <0x0c175000 0x600>;
  75         interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
  76
  77         clocks = <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>,
  78                  <&gcc GCC_BLSP1_AHB_CLK>;
  79         clock-names = "core", "iface";
  80         dmas = <&blsp1_dma 6>, <&blsp1_dma 7>;
  81         dma-names = "tx", "rx";
  82         pinctrl-names = "default", "sleep";
  83         pinctrl-0 = <&blsp1_i2c1_default>;
  84         pinctrl-1 = <&blsp1_i2c1_sleep>;
  85         clock-frequency = <400000>;
  86
  87         #address-cells = <1>;
  88         #size-cells = <0>;
  89     };