bindings/gpio/snps%2Cdw-apb-gpio.yaml

1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/gpio/snps,dw-apb-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Synopsys DesignWare APB GPIO controller
10   Synopsys DesignWare GPIO controllers have a configurable number of ports,
12   GPIO-controller properties as described in this bindings file.
15   - Hoan Tran <hoan@os.amperecomputing.com>
16   - Serge Semin <fancer.lancer@gmail.com>
20     pattern: "^gpio@[0-9a-f]+$"
23     const: snps,dw-apb-gpio
25   "#address-cells":
28   "#size-cells":
37       - description: APB interface clock source
38       - description: DW GPIO debounce reference clock source
40   clock-names:
43       - const: bus
44       - const: db
50   "^gpio-(port|controller)@[0-9a-f]+$":
54         const: snps,dw-apb-gpio-port
59       gpio-controller: true
61       '#gpio-cells':
64       gpio-line-names:
73       snps,nr-gpios:
74         description: The number of GPIO pins exported by the port.
86           one interrupt for each GPIO, provide a list of interrupts that
87           correspond to each of the GPIO pins.
91       interrupt-controller: true
93       '#interrupt-cells':
97       - compatible
98       - reg
99       - gpio-controller
100       - '#gpio-cells'
103       interrupt-controller: [ interrupts ]
110   - compatible
111   - reg
112   - "#address-cells"
113   - "#size-cells"
116   - |
117     gpio: gpio@20000 {
118       compatible = "snps,dw-apb-gpio";
120       #address-cells = <1>;
121       #size-cells = <0>;
123       porta: gpio-port@0 {
124         compatible = "snps,dw-apb-gpio-port";
126         gpio-controller;
127         #gpio-cells = <2>;
128         snps,nr-gpios = <8>;
129         interrupt-controller;
130         #interrupt-cells = <2>;
131         interrupt-parent = <&vic1>;
135       portb: gpio-port@1 {
136         compatible = "snps,dw-apb-gpio-port";
138         gpio-controller;
139         #gpio-cells = <2>;
140         snps,nr-gpios = <8>;