Chris Zhong | a53b9a9 | 2014-09-03 21:51:43 +0800 | [diff] [blame] | 1 | RK808 Power Management Integrated Circuit |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: "rockchip,rk808" |
| 5 | - reg: I2C slave address |
| 6 | - interrupt-parent: The parent interrupt controller. |
| 7 | - interrupts: the interrupt outputs of the controller. |
| 8 | - #clock-cells: from common clock binding; shall be set to 1 (multiple clock |
| 9 | outputs). See <dt-bindings/clock/rockchip,rk808.h> for clock IDs. |
| 10 | |
| 11 | Optional properties: |
| 12 | - clock-output-names: From common clock binding to override the |
| 13 | default output clock name |
| 14 | - rockchip,system-power-controller: Telling whether or not this pmic is controlling |
| 15 | the system power. |
| 16 | - vcc1-supply: The input supply for DCDC_REG1 |
| 17 | - vcc2-supply: The input supply for DCDC_REG2 |
| 18 | - vcc3-supply: The input supply for DCDC_REG3 |
| 19 | - vcc4-supply: The input supply for DCDC_REG4 |
| 20 | - vcc6-supply: The input supply for LDO_REG1 and LDO_REG2 |
| 21 | - vcc7-supply: The input supply for LDO_REG3 and LDO_REG7 |
| 22 | - vcc8-supply: The input supply for SWITCH_REG1 |
| 23 | - vcc9-supply: The input supply for LDO_REG4 and LDO_REG5 |
| 24 | - vcc10-supply: The input supply for LDO_REG6 |
| 25 | - vcc11-supply: The input supply for LDO_REG8 |
| 26 | - vcc12-supply: The input supply for SWITCH_REG2 |
| 27 | |
| 28 | Regulators: All the regulators of RK808 to be instantiated shall be |
| 29 | listed in a child node named 'regulators'. Each regulator is represented |
| 30 | by a child node of the 'regulators' node. |
| 31 | |
| 32 | regulator-name { |
| 33 | /* standard regulator bindings here */ |
| 34 | }; |
| 35 | |
| 36 | Following regulators of the RK808 PMIC block are supported. Note that |
| 37 | the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO |
| 38 | number as described in RK808 datasheet. |
| 39 | |
| 40 | - DCDC_REGn |
| 41 | - valid values for n are 1 to 4. |
| 42 | - LDO_REGn |
| 43 | - valid values for n are 1 to 8. |
| 44 | - SWITCH_REGn |
| 45 | - valid values for n are 1 to 2 |
| 46 | |
| 47 | Standard regulator bindings are used inside regulator subnodes. Check |
| 48 | Documentation/devicetree/bindings/regulator/regulator.txt |
| 49 | for more details |
| 50 | |
| 51 | Example: |
| 52 | rk808: pmic@1b { |
| 53 | compatible = "rockchip,rk808"; |
| 54 | clock-output-names = "xin32k", "rk808-clkout2"; |
| 55 | interrupt-parent = <&gpio0>; |
| 56 | interrupts = <4 IRQ_TYPE_LEVEL_LOW>; |
| 57 | pinctrl-names = "default"; |
| 58 | pinctrl-0 = <&pmic_int>; |
| 59 | reg = <0x1b>; |
| 60 | rockchip,system-power-controller; |
| 61 | wakeup-source; |
| 62 | #clock-cells = <1>; |
| 63 | |
| 64 | vcc8-supply = <&vcc_18>; |
| 65 | vcc9-supply = <&vcc_io>; |
| 66 | vcc10-supply = <&vcc_io>; |
| 67 | vcc12-supply = <&vcc_io>; |
| 68 | vddio-supply = <&vccio_pmu>; |
| 69 | |
| 70 | regulators { |
| 71 | vdd_cpu: DCDC_REG1 { |
| 72 | regulator-always-on; |
| 73 | regulator-boot-on; |
| 74 | regulator-min-microvolt = <750000>; |
| 75 | regulator-max-microvolt = <1300000>; |
| 76 | regulator-name = "vdd_arm"; |
| 77 | }; |
| 78 | |
| 79 | vdd_gpu: DCDC_REG2 { |
| 80 | regulator-always-on; |
| 81 | regulator-boot-on; |
| 82 | regulator-min-microvolt = <850000>; |
| 83 | regulator-max-microvolt = <1250000>; |
| 84 | regulator-name = "vdd_gpu"; |
| 85 | }; |
| 86 | |
| 87 | vcc_ddr: DCDC_REG3 { |
| 88 | regulator-always-on; |
| 89 | regulator-boot-on; |
| 90 | regulator-name = "vcc_ddr"; |
| 91 | }; |
| 92 | |
| 93 | vcc_io: DCDC_REG4 { |
| 94 | regulator-always-on; |
| 95 | regulator-boot-on; |
| 96 | regulator-min-microvolt = <3300000>; |
| 97 | regulator-max-microvolt = <3300000>; |
| 98 | regulator-name = "vcc_io"; |
| 99 | }; |
| 100 | |
| 101 | vccio_pmu: LDO_REG1 { |
| 102 | regulator-always-on; |
| 103 | regulator-boot-on; |
| 104 | regulator-min-microvolt = <3300000>; |
| 105 | regulator-max-microvolt = <3300000>; |
| 106 | regulator-name = "vccio_pmu"; |
| 107 | }; |
| 108 | |
| 109 | vcc_tp: LDO_REG2 { |
| 110 | regulator-always-on; |
| 111 | regulator-boot-on; |
| 112 | regulator-min-microvolt = <3300000>; |
| 113 | regulator-max-microvolt = <3300000>; |
| 114 | regulator-name = "vcc_tp"; |
| 115 | }; |
| 116 | |
| 117 | vdd_10: LDO_REG3 { |
| 118 | regulator-always-on; |
| 119 | regulator-boot-on; |
| 120 | regulator-min-microvolt = <1000000>; |
| 121 | regulator-max-microvolt = <1000000>; |
| 122 | regulator-name = "vdd_10"; |
| 123 | }; |
| 124 | |
| 125 | vcc18_lcd: LDO_REG4 { |
| 126 | regulator-always-on; |
| 127 | regulator-boot-on; |
| 128 | regulator-min-microvolt = <1800000>; |
| 129 | regulator-max-microvolt = <1800000>; |
| 130 | regulator-name = "vcc18_lcd"; |
| 131 | }; |
| 132 | |
| 133 | vccio_sd: LDO_REG5 { |
| 134 | regulator-always-on; |
| 135 | regulator-boot-on; |
| 136 | regulator-min-microvolt = <1800000>; |
| 137 | regulator-max-microvolt = <3300000>; |
| 138 | regulator-name = "vccio_sd"; |
| 139 | }; |
| 140 | |
| 141 | vdd10_lcd: LDO_REG6 { |
| 142 | regulator-always-on; |
| 143 | regulator-boot-on; |
| 144 | regulator-min-microvolt = <1000000>; |
| 145 | regulator-max-microvolt = <1000000>; |
| 146 | regulator-name = "vdd10_lcd"; |
| 147 | }; |
| 148 | |
| 149 | vcc_18: LDO_REG7 { |
| 150 | regulator-always-on; |
| 151 | regulator-boot-on; |
| 152 | regulator-min-microvolt = <1800000>; |
| 153 | regulator-max-microvolt = <1800000>; |
| 154 | regulator-name = "vcc_18"; |
| 155 | }; |
| 156 | |
| 157 | vcca_codec: LDO_REG8 { |
| 158 | regulator-always-on; |
| 159 | regulator-boot-on; |
| 160 | regulator-min-microvolt = <3300000>; |
| 161 | regulator-max-microvolt = <3300000>; |
| 162 | regulator-name = "vcca_codec"; |
| 163 | }; |
| 164 | |
| 165 | vcc_wl: SWITCH_REG1 { |
| 166 | regulator-always-on; |
| 167 | regulator-boot-on; |
| 168 | regulator-name = "vcc_wl"; |
| 169 | }; |
| 170 | |
| 171 | vcc_lcd: SWITCH_REG2 { |
| 172 | regulator-always-on; |
| 173 | regulator-boot-on; |
| 174 | regulator-name = "vcc_lcd"; |
| 175 | }; |
| 176 | }; |
| 177 | }; |