1* NXP PCA953x I2C GPIO multiplexer 2 3Required 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,pcal9535 23 nxp,pcal9555a 24 maxim,max7310 25 maxim,max7312 26 maxim,max7313 27 maxim,max7315 28 ti,pca6107 29 ti,pca9536 30 ti,tca6408 31 ti,tca6416 32 ti,tca6424 33 ti,tca9539 34 ti,tca9554 35 onnn,cat9554 36 onnn,pca9654 37 exar,xra1202 38 - gpio-controller: if used as gpio expander. 39 - #gpio-cells: if used as gpio expander. 40 - interrupt-controller: if to be used as interrupt expander. 41 - #interrupt-cells: if to be used as interrupt expander. 42 43Optional properties: 44 - interrupts: interrupt specifier for the device's interrupt output. 45 - reset-gpios: GPIO specification for the RESET input. This is an 46 active low signal to the PCA953x. 47 - vcc-supply: power supply regulator. 48 49Example: 50 51 52 gpio@20 { 53 compatible = "nxp,pca9505"; 54 reg = <0x20>; 55 pinctrl-names = "default"; 56 pinctrl-0 = <&pinctrl_pca9505>; 57 gpio-controller; 58 #gpio-cells = <2>; 59 interrupt-parent = <&gpio3>; 60 interrupts = <23 IRQ_TYPE_LEVEL_LOW>; 61 }; 62 63 64Example with Interrupts: 65 66 67 gpio99: gpio@22 { 68 compatible = "nxp,pcal6524"; 69 reg = <0x22>; 70 interrupt-parent = <&gpio6>; 71 interrupts = <1 IRQ_TYPE_EDGE_FALLING>; /* gpio6_161 */ 72 interrupt-controller; 73 #interrupt-cells = <2>; 74 vcc-supply = <&vdds_1v8_main>; 75 gpio-controller; 76 #gpio-cells = <2>; 77 gpio-line-names = 78 "hdmi-ct-hpd", "hdmi.ls-oe", "p02", "p03", "vibra", "fault2", "p06", "p07", 79 "en-usb", "en-host1", "en-host2", "chg-int", "p14", "p15", "mic-int", "en-modem", 80 "shdn-hs-amp", "chg-status+red", "green", "blue", "en-esata", "fault1", "p26", "p27"; 81 }; 82 83 ts3a227@3b { 84 compatible = "ti,ts3a227e"; 85 reg = <0x3b>; 86 interrupt-parent = <&gpio99>; 87 interrupts = <14 IRQ_TYPE_EDGE_RISING>; 88 ti,micbias = <0>; /* 2.1V */ 89 }; 90 91