1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
* NXP PCA953x I2C GPIO multiplexer
Required properties:
- compatible: Has to contain one of the following:
nxp,pca6416
nxp,pca9505
nxp,pca9534
nxp,pca9535
nxp,pca9536
nxp,pca9537
nxp,pca9538
nxp,pca9539
nxp,pca9554
nxp,pca9555
nxp,pca9556
nxp,pca9557
nxp,pca9574
nxp,pca9575
nxp,pca9698
nxp,pcal6416
nxp,pcal6524
nxp,pcal9535
nxp,pcal9555a
maxim,max7310
maxim,max7312
maxim,max7313
maxim,max7315
ti,pca6107
ti,pca9536
ti,tca6408
ti,tca6416
ti,tca6424
ti,tca9539
ti,tca9554
onnn,cat9554
onnn,pca9654
exar,xra1202
- gpio-controller: if used as gpio expander.
- #gpio-cells: if used as gpio expander.
- interrupt-controller: if to be used as interrupt expander.
- #interrupt-cells: if to be used as interrupt expander.
Optional properties:
- interrupts: interrupt specifier for the device's interrupt output.
- reset-gpios: GPIO specification for the RESET input. This is an
active low signal to the PCA953x.
- vcc-supply: power supply regulator.
Example:
gpio@20 {
compatible = "nxp,pca9505";
reg = <0x20>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pca9505>;
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&gpio3>;
interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
};
Example with Interrupts:
gpio99: gpio@22 {
compatible = "nxp,pcal6524";
reg = <0x22>;
interrupt-parent = <&gpio6>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>; /* gpio6_161 */
interrupt-controller;
#interrupt-cells = <2>;
vcc-supply = <&vdds_1v8_main>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names =
"hdmi-ct-hpd", "hdmi.ls-oe", "p02", "p03", "vibra", "fault2", "p06", "p07",
"en-usb", "en-host1", "en-host2", "chg-int", "p14", "p15", "mic-int", "en-modem",
"shdn-hs-amp", "chg-status+red", "green", "blue", "en-esata", "fault1", "p26", "p27";
};
ts3a227@3b {
compatible = "ti,ts3a227e";
reg = <0x3b>;
interrupt-parent = <&gpio99>;
interrupts = <14 IRQ_TYPE_EDGE_RISING>;
ti,micbias = <0>; /* 2.1V */
};
|
