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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/gpio/sifive,gpio.yaml | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/sifive,gpio.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/gpio/sifive,gpio.yaml | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml new file mode 100644 index 000000000..fc095646a --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/sifive,gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SiFive GPIO controller + +maintainers: + - Paul Walmsley <paul.walmsley@sifive.com> + +properties: + compatible: + items: + - enum: + - sifive,fu540-c000-gpio + - sifive,fu740-c000-gpio + - canaan,k210-gpiohs + - const: sifive,gpio0 + + reg: + maxItems: 1 + + interrupts: + description: + Interrupt mapping, one per GPIO. Maximum 32 GPIOs. + minItems: 1 + maxItems: 32 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + clocks: + maxItems: 1 + + "#gpio-cells": + const: 2 + + ngpios: + description: + The number of GPIOs available on the controller implementation. + It is 16 for the SiFive SoCs and 32 for the Canaan K210. + minimum: 1 + maximum: 32 + default: 16 + + gpio-line-names: + minItems: 1 + maxItems: 32 + + gpio-controller: true + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - "#interrupt-cells" + - "#gpio-cells" + - gpio-controller + +if: + properties: + compatible: + contains: + enum: + - sifive,fu540-c000-gpio + - sifive,fu740-c000-gpio +then: + required: + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/sifive-fu540-prci.h> + gpio@10060000 { + compatible = "sifive,fu540-c000-gpio", "sifive,gpio0"; + interrupt-parent = <&plic>; + interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>, + <17>, <18>, <19>, <20>, <21>, <22>; + reg = <0x10060000 0x1000>; + clocks = <&tlclk FU540_PRCI_CLK_TLCLK>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + +... |