1MCP16502 PMIC 2 3Required properties: 4- compatible: "microchip,mcp16502" 5- reg: I2C slave address 6- lpm-gpios: GPIO for LPM pin. Note that this GPIO *must* remain high during 7 suspend-to-ram, keeping the PMIC into HIBERNATE mode; this 8 property is optional; 9- regulators: A node that houses a sub-node for each regulator within 10 the device. Each sub-node is identified using the node's 11 name. The content of each sub-node is defined by the 12 standard binding for regulators; see regulator.txt. 13 14Regulators of MCP16502 PMIC: 151) VDD_IO - Buck (1.2 - 3.7 V) 162) VDD_DDR - Buck (0.6 - 1.85 V) 173) VDD_CORE - Buck (0.6 - 1.85 V) 184) VDD_OTHER - BUCK (0.6 - 1.85 V) 195) LDO1 - LDO (1.2 - 3.7 V) 206) LDO2 - LDO (1.2 - 3.7 V) 21 22Regulator modes: 232 - FPWM: higher precision, higher consumption 244 - AutoPFM: lower precision, lower consumption 25 26Each regulator is defined using the standard binding for regulators. 27 28Example: 29 30mcp16502@5b { 31 compatible = "microchip,mcp16502"; 32 reg = <0x5b>; 33 status = "okay"; 34 lpm-gpios = <&pioBU 7 GPIO_ACTIVE_HIGH>; 35 36 regulators { 37 VDD_IO { 38 regulator-name = "VDD_IO"; 39 regulator-min-microvolt = <1200000>; 40 regulator-max-microvolt = <3700000>; 41 regulator-initial-mode = <2>; 42 regulator-allowed-modes = <2>, <4>; 43 regulator-always-on; 44 45 regulator-state-standby { 46 regulator-on-in-suspend; 47 regulator-mode = <4>; 48 }; 49 50 regulator-state-mem { 51 regulator-off-in-suspend; 52 regulator-mode = <4>; 53 }; 54 }; 55 56 VDD_DDR { 57 regulator-name = "VDD_DDR"; 58 regulator-min-microvolt = <600000>; 59 regulator-max-microvolt = <1850000>; 60 regulator-initial-mode = <2>; 61 regulator-allowed-modes = <2>, <4>; 62 regulator-always-on; 63 64 regulator-state-standby { 65 regulator-on-in-suspend; 66 regulator-mode = <4>; 67 }; 68 69 regulator-state-mem { 70 regulator-on-in-suspend; 71 regulator-mode = <4>; 72 }; 73 }; 74 75 VDD_CORE { 76 regulator-name = "VDD_CORE"; 77 regulator-min-microvolt = <600000>; 78 regulator-max-microvolt = <1850000>; 79 regulator-initial-mode = <2>; 80 regulator-allowed-modes = <2>, <4>; 81 regulator-always-on; 82 83 regulator-state-standby { 84 regulator-on-in-suspend; 85 regulator-mode = <4>; 86 }; 87 88 regulator-state-mem { 89 regulator-off-in-suspend; 90 regulator-mode = <4>; 91 }; 92 }; 93 94 VDD_OTHER { 95 regulator-name = "VDD_OTHER"; 96 regulator-min-microvolt = <600000>; 97 regulator-max-microvolt = <1850000>; 98 regulator-initial-mode = <2>; 99 regulator-allowed-modes = <2>, <4>; 100 regulator-always-on; 101 102 regulator-state-standby { 103 regulator-on-in-suspend; 104 regulator-mode = <4>; 105 }; 106 107 regulator-state-mem { 108 regulator-off-in-suspend; 109 regulator-mode = <4>; 110 }; 111 }; 112 113 LDO1 { 114 regulator-name = "LDO1"; 115 regulator-min-microvolt = <1200000>; 116 regulator-max-microvolt = <3700000>; 117 regulator-always-on; 118 119 regulator-state-standby { 120 regulator-on-in-suspend; 121 }; 122 123 regulator-state-mem { 124 regulator-off-in-suspend; 125 }; 126 }; 127 128 LDO2 { 129 regulator-name = "LDO2"; 130 regulator-min-microvolt = <1200000>; 131 regulator-max-microvolt = <3700000>; 132 regulator-always-on; 133 134 regulator-state-standby { 135 regulator-on-in-suspend; 136 }; 137 138 regulator-state-mem { 139 regulator-off-in-suspend; 140 }; 141 }; 142 143 }; 144}; 145