Documentation/devicetree/bindings/mfd/motorola-cpcap.txt

   1 Motorola CPCAP PMIC device tree binding
   2
   3 Required properties:
   4 - compatible            : One or both of "motorola,cpcap" or "ste,6556002"
   5 - reg                   : SPI chip select
   6 - interrupts            : The interrupt line the device is connected to
   7 - interrupt-controller  : Marks the device node as an interrupt controller
   8 - #interrupt-cells      : The number of cells to describe an IRQ, should be 2
   9 - #address-cells        : Child device offset number of cells, should be 1
  10 - #size-cells           : Child device size number of cells, should be 0
  11 - spi-max-frequency     : Typically set to 3000000
  12 - spi-cs-high           : SPI chip select direction
  13
  14 Optional subnodes:
  15
  16 The sub-functions of CPCAP get their own node with their own compatible values,
  17 which are described in the following files:
  18
  19 - ../power/supply/cpcap-battery.txt
  20 - ../power/supply/cpcap-charger.txt
  21 - ../regulator/cpcap-regulator.txt
  22 - ../phy/phy-cpcap-usb.txt
  23 - ../input/cpcap-pwrbutton.txt
  24 - ../rtc/cpcap-rtc.txt
  25 - ../leds/leds-cpcap.txt
  26 - ../iio/adc/cpcap-adc.txt
  27
  28 The only exception is the audio codec. Instead of a compatible value its
  29 node must be named "audio-codec".
  30
  31 Required properties for the audio-codec subnode:
  32
  33 - #sound-dai-cells = <1>;
  34
  35 The audio-codec provides two DAIs. The first one is connected to the
  36 Stereo HiFi DAC and the second one is connected to the Voice DAC.
  37
  38 Example:
  39
  40 &mcspi1 {
  41         cpcap: pmic@0 {
  42                 compatible = "motorola,cpcap", "ste,6556002";
  43                 reg = <0>;      /* cs0 */
  44                 interrupt-parent = <&gpio1>;
  45                 interrupts = <7 IRQ_TYPE_EDGE_RISING>;
  46                 interrupt-controller;
  47                 #interrupt-cells = <2>;
  48                 #address-cells = <1>;
  49                 #size-cells = <0>;
  50                 spi-max-frequency = <3000000>;
  51                 spi-cs-high;
  52
  53                 audio-codec {
  54                         #sound-dai-cells = <1>;
  55
  56                         /* HiFi */
  57                         port@0 {
  58                                 endpoint {
  59                                         remote-endpoint = <&cpu_dai1>;
  60                                 };
  61                         };
  62
  63                         /* Voice */
  64                         port@1 {
  65                                 endpoint {
  66                                         remote-endpoint = <&cpu_dai2>;
  67                                 };
  68                         };
  69                 };
  70         };
  71 };
  72