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| 1 | +# SPDX-License-Identifier: GPL-2.0-only |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/bindings/clock/qcom,gcc.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Qualcomm Global Clock & Reset Controller Binding |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Stephen Boyd <[email protected]> |
| 11 | + |
| 12 | + |
| 13 | +description: | |
| 14 | + Qualcomm global clock control module which supports the clocks, resets and |
| 15 | + power domains. |
| 16 | +
|
| 17 | +properties: |
| 18 | + compatible : |
| 19 | + enum: |
| 20 | + - qcom,gcc-apq8064 |
| 21 | + - qcom,gcc-apq8084 |
| 22 | + - qcom,gcc-ipq8064 |
| 23 | + - qcom,gcc-ipq4019 |
| 24 | + - qcom,gcc-ipq8074 |
| 25 | + - qcom,gcc-msm8660 |
| 26 | + - qcom,gcc-msm8916 |
| 27 | + - qcom,gcc-msm8960 |
| 28 | + - qcom,gcc-msm8974 |
| 29 | + - qcom,gcc-msm8974pro |
| 30 | + - qcom,gcc-msm8974pro-ac |
| 31 | + - qcom,gcc-msm8994 |
| 32 | + - qcom,gcc-msm8996 |
| 33 | + - qcom,gcc-msm8998 |
| 34 | + - qcom,gcc-mdm9615 |
| 35 | + - qcom,gcc-qcs404 |
| 36 | + - qcom,gcc-sc7180 |
| 37 | + - qcom,gcc-sdm630 |
| 38 | + - qcom,gcc-sdm660 |
| 39 | + - qcom,gcc-sdm845 |
| 40 | + - qcom,gcc-sm8150 |
| 41 | + |
| 42 | + clocks: |
| 43 | + minItems: 1 |
| 44 | + maxItems: 3 |
| 45 | + items: |
| 46 | + - description: Board XO source |
| 47 | + - description: Board active XO source |
| 48 | + - description: Sleep clock source |
| 49 | + |
| 50 | + clock-names: |
| 51 | + minItems: 1 |
| 52 | + maxItems: 3 |
| 53 | + items: |
| 54 | + - const: bi_tcxo |
| 55 | + - const: bi_tcxo_ao |
| 56 | + - const: sleep_clk |
| 57 | + |
| 58 | + '#clock-cells': |
| 59 | + const: 1 |
| 60 | + |
| 61 | + '#reset-cells': |
| 62 | + const: 1 |
| 63 | + |
| 64 | + '#power-domain-cells': |
| 65 | + const: 1 |
| 66 | + |
| 67 | + reg: |
| 68 | + maxItems: 1 |
| 69 | + |
| 70 | + nvmem-cells: |
| 71 | + minItems: 1 |
| 72 | + maxItems: 2 |
| 73 | + description: |
| 74 | + Qualcomm TSENS (thermal sensor device) on some devices can |
| 75 | + be part of GCC and hence the TSENS properties can also be part |
| 76 | + of the GCC/clock-controller node. |
| 77 | + For more details on the TSENS properties please refer |
| 78 | + Documentation/devicetree/bindings/thermal/qcom-tsens.txt |
| 79 | + |
| 80 | + nvmem-cell-names: |
| 81 | + minItems: 1 |
| 82 | + maxItems: 2 |
| 83 | + description: |
| 84 | + Names for each nvmem-cells specified. |
| 85 | + items: |
| 86 | + - const: calib |
| 87 | + - const: calib_backup |
| 88 | + |
| 89 | + 'thermal-sensor-cells': |
| 90 | + const: 1 |
| 91 | + |
| 92 | + protected-clocks: |
| 93 | + description: |
| 94 | + Protected clock specifier list as per common clock binding |
| 95 | + |
| 96 | +required: |
| 97 | + - compatible |
| 98 | + - reg |
| 99 | + - '#clock-cells' |
| 100 | + - '#reset-cells' |
| 101 | + - '#power-domain-cells' |
| 102 | + |
| 103 | +if: |
| 104 | + properties: |
| 105 | + compatible: |
| 106 | + contains: |
| 107 | + const: qcom,gcc-apq8064 |
| 108 | + |
| 109 | +then: |
| 110 | + required: |
| 111 | + - nvmem-cells |
| 112 | + - nvmem-cell-names |
| 113 | + - '#thermal-sensor-cells' |
| 114 | + |
| 115 | +else: |
| 116 | + if: |
| 117 | + properties: |
| 118 | + compatible: |
| 119 | + contains: |
| 120 | + enum: |
| 121 | + - qcom,gcc-sm8150 |
| 122 | + - qcom,gcc-sc7180 |
| 123 | + then: |
| 124 | + required: |
| 125 | + - clocks |
| 126 | + - clock-names |
| 127 | + |
| 128 | + |
| 129 | +examples: |
| 130 | + # Example for GCC for MSM8960: |
| 131 | + - | |
| 132 | + clock-controller@900000 { |
| 133 | + compatible = "qcom,gcc-msm8960"; |
| 134 | + reg = <0x900000 0x4000>; |
| 135 | + #clock-cells = <1>; |
| 136 | + #reset-cells = <1>; |
| 137 | + #power-domain-cells = <1>; |
| 138 | + }; |
| 139 | +
|
| 140 | +
|
| 141 | + # Example of GCC with TSENS properties: |
| 142 | + - | |
| 143 | + clock-controller@900000 { |
| 144 | + compatible = "qcom,gcc-apq8064"; |
| 145 | + reg = <0x00900000 0x4000>; |
| 146 | + nvmem-cells = <&tsens_calib>, <&tsens_backup>; |
| 147 | + nvmem-cell-names = "calib", "calib_backup"; |
| 148 | + #clock-cells = <1>; |
| 149 | + #reset-cells = <1>; |
| 150 | + #power-domain-cells = <1>; |
| 151 | + #thermal-sensor-cells = <1>; |
| 152 | + }; |
| 153 | +
|
| 154 | + # Example of GCC with protected-clocks properties: |
| 155 | + - | |
| 156 | + clock-controller@100000 { |
| 157 | + compatible = "qcom,gcc-sdm845"; |
| 158 | + reg = <0x100000 0x1f0000>; |
| 159 | + protected-clocks = <187>, <188>, <189>, <190>, <191>; |
| 160 | + #clock-cells = <1>; |
| 161 | + #reset-cells = <1>; |
| 162 | + #power-domain-cells = <1>; |
| 163 | + }; |
| 164 | +
|
| 165 | + # Example of GCC with clock node properties for SM8150: |
| 166 | + - | |
| 167 | + clock-controller@100000 { |
| 168 | + compatible = "qcom,gcc-sm8150"; |
| 169 | + reg = <0x00100000 0x1f0000>; |
| 170 | + clocks = <&rpmhcc 0>, <&rpmhcc 1>, <&sleep_clk>; |
| 171 | + clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk"; |
| 172 | + #clock-cells = <1>; |
| 173 | + #reset-cells = <1>; |
| 174 | + #power-domain-cells = <1>; |
| 175 | + }; |
| 176 | +
|
| 177 | + # Example of GCC with clock nodes properties for SC7180: |
| 178 | + - | |
| 179 | + clock-controller@100000 { |
| 180 | + compatible = "qcom,gcc-sc7180"; |
| 181 | + reg = <0x100000 0x1f0000>; |
| 182 | + clocks = <&rpmhcc 0>, <&rpmhcc 1>; |
| 183 | + clock-names = "bi_tcxo", "bi_tcxo_ao"; |
| 184 | + #clock-cells = <1>; |
| 185 | + #reset-cells = <1>; |
| 186 | + #power-domain-cells = <1>; |
| 187 | + }; |
| 188 | +... |
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