| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 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 | |