Bindings/mfd/sprd,sc27xx-pmic.txt

   1 Spreadtrum SC27xx Power Management Integrated Circuit (PMIC)
   2
   3 The Spreadtrum SC27xx series PMICs contain SC2720, SC2721, SC2723, SC2730
   4 and SC2731. The Spreadtrum PMIC belonging to SC27xx series integrates all
   5 mobile handset power management, audio codec, battery management and user
   6 interface support function in a single chip. It has 6 major functional
   7 blocks:
   8 - DCDCs to support CPU, memory.
   9 - LDOs to support both internal and external requirement.
  10 - Battery management system, such as charger, fuel gauge.
  11 - Audio codec.
  12 - User interface function, such as indicator, flash LED and so on.
  13 - IC level interface, such as power on/off control, RTC and typec and so on.
  14
  15 Required properties:
  16 - compatible: Should be one of the following:
  17         "sprd,sc2720"
  18         "sprd,sc2721"
  19         "sprd,sc2723"
  20         "sprd,sc2730"
  21         "sprd,sc2731"
  22 - reg: The address of the device chip select, should be 0.
  23 - spi-max-frequency: Typically set to 26000000.
  24 - interrupts: The interrupt line the device is connected to.
  25 - interrupt-controller: Marks the device node as an interrupt controller.
  26 - #interrupt-cells: The number of cells to describe an PMIC IRQ, must be 2.
  27 - #address-cells: Child device offset number of cells, must be 1.
  28 - #size-cells: Child device size number of cells, must be 0.
  29
  30 Example:
  31 pmic@0 {
  32         compatible = "sprd,sc2731";
  33         reg = <0>;
  34         spi-max-frequency = <26000000>;
  35         interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
  36         interrupt-controller;
  37         #interrupt-cells = <2>;
  38         #address-cells = <1>;
  39         #size-cells = <0>;
  40 };