Documentation/devicetree/bindings/gpio/gpio-pca953x.txt

   1 * NXP PCA953x I2C GPIO multiplexer
   2
   3 Required properties:
   4  - compatible: Has to contain one of the following:
   5         nxp,pca6416
   6         nxp,pca9505
   7         nxp,pca9534
   8         nxp,pca9535
   9         nxp,pca9536
  10         nxp,pca9537
  11         nxp,pca9538
  12         nxp,pca9539
  13         nxp,pca9554
  14         nxp,pca9555
  15         nxp,pca9556
  16         nxp,pca9557
  17         nxp,pca9574
  18         nxp,pca9575
  19         nxp,pca9698
  20         nxp,pcal6416
  21         nxp,pcal6524
  22         nxp,pcal9555a
  23         maxim,max7310
  24         maxim,max7312
  25         maxim,max7313
  26         maxim,max7315
  27         ti,pca6107
  28         ti,pca9536
  29         ti,tca6408
  30         ti,tca6416
  31         ti,tca6424
  32         ti,tca9539
  33         ti,tca9554
  34         onnn,cat9554
  35         onnn,pca9654
  36         exar,xra1202
  37  - gpio-controller: if used as gpio expander.
  38  - #gpio-cells: if used as gpio expander.
  39  - interrupt-controller: if to be used as interrupt expander.
  40  - #interrupt-cells: if to be used as interrupt expander.
  41
  42 Optional properties:
  43  - interrupts: interrupt specifier for the device's interrupt output.
  44  - reset-gpios: GPIO specification for the RESET input. This is an
  45                 active low signal to the PCA953x.
  46  - vcc-supply:  power supply regulator.
  47
  48 Example:
  49
  50
  51         gpio@20 {
  52                 compatible = "nxp,pca9505";
  53                 reg = <0x20>;
  54                 pinctrl-names = "default";
  55                 pinctrl-0 = <&pinctrl_pca9505>;
  56                 gpio-controller;
  57                 #gpio-cells = <2>;
  58                 interrupt-parent = <&gpio3>;
  59                 interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
  60         };
  61
  62
  63 Example with Interrupts:
  64
  65
  66         gpio99: gpio@22 {
  67                 compatible = "nxp,pcal6524";
  68                 reg = <0x22>;
  69                 interrupt-parent = <&gpio6>;
  70                 interrupts = <1 IRQ_TYPE_EDGE_FALLING>; /* gpio6_161 */
  71                 interrupt-controller;
  72                 #interrupt-cells = <2>;
  73                 vcc-supply = <&vdds_1v8_main>;
  74                 gpio-controller;
  75                 #gpio-cells = <2>;
  76                 gpio-line-names =
  77                         "hdmi-ct-hpd", "hdmi.ls-oe", "p02", "p03", "vibra", "fault2", "p06", "p07",
  78                         "en-usb", "en-host1", "en-host2", "chg-int", "p14", "p15", "mic-int", "en-modem",
  79                         "shdn-hs-amp", "chg-status+red", "green", "blue", "en-esata", "fault1", "p26", "p27";
  80         };
  81
  82         ts3a227@3b {
  83                 compatible = "ti,ts3a227e";
  84                 reg = <0x3b>;
  85                 interrupt-parent = <&gpio99>;
  86                 interrupts = <14 IRQ_TYPE_EDGE_RISING>;
  87                 ti,micbias = <0>;       /* 2.1V */
  88         };
  89