Documentation/devicetree/bindings/clock/qcom,gcc.txt

   1 Qualcomm Global Clock & Reset Controller Binding
   2 ------------------------------------------------
   3
   4 Required properties :
   5 - compatible : shall contain only one of the following:
   6
   7                         "qcom,gcc-apq8064"
   8                         "qcom,gcc-apq8084"
   9                         "qcom,gcc-ipq8064"
  10                         "qcom,gcc-ipq4019"
  11                         "qcom,gcc-ipq8074"
  12                         "qcom,gcc-msm8660"
  13                         "qcom,gcc-msm8916"
  14                         "qcom,gcc-msm8960"
  15                         "qcom,gcc-msm8974"
  16                         "qcom,gcc-msm8974pro"
  17                         "qcom,gcc-msm8974pro-ac"
  18                         "qcom,gcc-msm8994"
  19                         "qcom,gcc-msm8996"
  20                         "qcom,gcc-msm8998"
  21                         "qcom,gcc-mdm9615"
  22                         "qcom,gcc-qcs404"
  23                         "qcom,gcc-sdm630"
  24                         "qcom,gcc-sdm660"
  25                         "qcom,gcc-sdm845"
  26
  27 - reg : shall contain base register location and length
  28 - #clock-cells : shall contain 1
  29 - #reset-cells : shall contain 1
  30
  31 Optional properties :
  32 - #power-domain-cells : shall contain 1
  33 - Qualcomm TSENS (thermal sensor device) on some devices can
  34 be part of GCC and hence the TSENS properties can also be
  35 part of the GCC/clock-controller node.
  36 For more details on the TSENS properties please refer
  37 Documentation/devicetree/bindings/thermal/qcom-tsens.txt
  38 - protected-clocks : Protected clock specifier list as per common clock
  39  binding.
  40
  41 Example:
  42         clock-controller@900000 {
  43                 compatible = "qcom,gcc-msm8960";
  44                 reg = <0x900000 0x4000>;
  45                 #clock-cells = <1>;
  46                 #reset-cells = <1>;
  47                 #power-domain-cells = <1>;
  48         };
  49
  50 Example of GCC with TSENS properties:
  51         clock-controller@900000 {
  52                 compatible = "qcom,gcc-apq8064";
  53                 reg = <0x00900000 0x4000>;
  54                 nvmem-cells = <&tsens_calib>, <&tsens_backup>;
  55                 nvmem-cell-names = "calib", "calib_backup";
  56                 #clock-cells = <1>;
  57                 #reset-cells = <1>;
  58                 #thermal-sensor-cells = <1>;
  59         };
  60
  61 Example of GCC with protected-clocks properties:
  62         clock-controller@100000 {
  63                 compatible = "qcom,gcc-sdm845";
  64                 reg = <0x100000 0x1f0000>;
  65                 #clock-cells = <1>;
  66                 #reset-cells = <1>;
  67                 #power-domain-cells = <1>;
  68                 protected-clocks = <GCC_QSPI_CORE_CLK>,
  69                                    <GCC_QSPI_CORE_CLK_SRC>,
  70                                    <GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
  71                                    <GCC_LPASS_Q6_AXI_CLK>,
  72                                    <GCC_LPASS_SWAY_CLK>;
  73         };