This patch adds device tree bindings for the NXP PCA9570, a 4-bit I2C GPO expander. Signed-off-by: Sungbo Eo <mans0n@xxxxxxxxxx> --- v3: * fixed dt_binding_check error v2: I don't feel I can really maintain this driver, but it seems all yaml docs have a maintainers field so I just added it... --- .../bindings/gpio/gpio-pca9570.yaml | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml new file mode 100644 index 000000000000..338c5312a106 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/gpio-pca9570.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PCA9570 I2C GPO expander + +maintainers: + - Sungbo Eo <mans0n@xxxxxxxxxx> + +properties: + compatible: + enum: + - nxp,pca9570 + + reg: + maxItems: 1 + + gpio-controller: true + + '#gpio-cells': + const: 2 + +required: + - compatible + - reg + - gpio-controller + - "#gpio-cells" + +additionalProperties: false + +examples: + - | + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + gpio@24 { + compatible = "nxp,pca9570"; + reg = <0x24>; + gpio-controller; + #gpio-cells = <2>; + }; + }; + +... -- 2.27.0
