The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/regulator/tps65090.txt

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    1 TPS65090 regulators
    2 
    3 Required properties:
    4 - compatible: "ti,tps65090"
    5 - reg: I2C slave address
    6 - interrupts: the interrupt outputs of the controller
    7 - regulators: A node that houses a sub-node for each regulator within the
    8   device. Each sub-node is identified using the node's name, with valid
    9   values listed below. The content of each sub-node is defined by the
   10   standard binding for regulators; see regulator.txt.
   11   dcdc[1-3], fet[1-7] and ldo[1-2] respectively.
   12 - vsys[1-3]-supply: The input supply for DCDC[1-3] respectively.
   13 - infet[1-7]-supply: The input supply for FET[1-7] respectively.
   14 - vsys-l[1-2]-supply: The input supply for LDO[1-2] respectively.
   15 
   16 Optional properties:
   17 - ti,enable-ext-control: This is applicable for DCDC1, DCDC2 and DCDC3.
   18   If DCDCs are externally controlled then this property should be there.
   19 - dcdc-ext-control-gpios: This is applicable for DCDC1, DCDC2 and DCDC3.
   20   If DCDCs are externally controlled and if it is from GPIO then GPIO
   21   number should be provided. If it is externally controlled and no GPIO
   22   entry then driver will just configure this rails as external control
   23   and will not provide any enable/disable APIs.
   24 - ti,overcurrent-wait: This is applicable to FET registers, which have a
   25   poorly defined "overcurrent wait" field.  If this property is present it
   26   should be between 0 - 3.  If this property isn't present we won't touch the
   27   "overcurrent wait" field and we'll leave it to the BIOS/EC to deal with.
   28 
   29 Each regulator is defined using the standard binding for regulators.
   30 
   31 Example:
   32 
   33         tps65090@48 {
   34                 compatible = "ti,tps65090";
   35                 reg = <0x48>;
   36                 interrupts = <0 88 0x4>;
   37 
   38                 vsys1-supply = <&some_reg>;
   39                 vsys2-supply = <&some_reg>;
   40                 vsys3-supply = <&some_reg>;
   41                 infet1-supply = <&some_reg>;
   42                 infet2-supply = <&some_reg>;
   43                 infet3-supply = <&some_reg>;
   44                 infet4-supply = <&some_reg>;
   45                 infet5-supply = <&some_reg>;
   46                 infet6-supply = <&some_reg>;
   47                 infet7-supply = <&some_reg>;
   48                 vsys-l1-supply = <&some_reg>;
   49                 vsys-l2-supply = <&some_reg>;
   50 
   51                 regulators {
   52                         dcdc1 {
   53                                 regulator-name = "dcdc1";
   54                                 regulator-boot-on;
   55                                 regulator-always-on;
   56                                 ti,enable-ext-control;
   57                                 dcdc-ext-control-gpios = <&gpio 10 0>;
   58                         };
   59 
   60                         dcdc2 {
   61                                 regulator-name = "dcdc2";
   62                                 regulator-boot-on;
   63                                 regulator-always-on;
   64                         };
   65 
   66                         dcdc3 {
   67                                 regulator-name = "dcdc3";
   68                                 regulator-boot-on;
   69                                 regulator-always-on;
   70                         };
   71 
   72                         fet1 {
   73                                 regulator-name = "fet1";
   74                                 regulator-boot-on;
   75                                 regulator-always-on;
   76                         };
   77 
   78                         fet2 {
   79                                 regulator-name = "fet2";
   80                                 regulator-boot-on;
   81                                 regulator-always-on;
   82                         };
   83 
   84                         fet3 {
   85                                 regulator-name = "fet3";
   86                                 regulator-boot-on;
   87                                 regulator-always-on;
   88                         };
   89 
   90                         fet4 {
   91                                 regulator-name = "fet4";
   92                                 regulator-boot-on;
   93                                 regulator-always-on;
   94                         };
   95 
   96                         fet5 {
   97                                 regulator-name = "fet5";
   98                                 regulator-boot-on;
   99                                 regulator-always-on;
  100                         };
  101 
  102                         fet6 {
  103                                 regulator-name = "fet6";
  104                                 regulator-boot-on;
  105                                 regulator-always-on;
  106                         };
  107 
  108                         fet7 {
  109                                 regulator-name = "fet7";
  110                                 regulator-boot-on;
  111                                 regulator-always-on;
  112                         };
  113 
  114                         ldo1 {
  115                                 regulator-name = "ldo1";
  116                                 regulator-boot-on;
  117                                 regulator-always-on;
  118                         };
  119 
  120                         ldo2 {
  121                                 regulator-name = "ldo2";
  122                                 regulator-boot-on;
  123                                 regulator-always-on;
  124                         };
  125                 };
  126         };

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