From: Christian Marangi <ansuelsmth@xxxxxxxxx> Add support for Airoha EN7581 GPIO System Controller which provide a register map for controlling the GPIO, pinctrl and PWM of the SoC via dedicated pinctrl and pwm child nodes. Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx> Co-developed-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> --- .../bindings/mfd/airoha,en7581-gpio-sysctl.yaml | 90 ++++++++++++++++++++++ 1 file changed, 90 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/airoha,en7581-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/airoha,en7581-gpio-sysctl.yaml new file mode 100644 index 0000000000000000000000000000000000000000..4a81ed82ef34dc2b99594098584cc77f67f276c8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/airoha,en7581-gpio-sysctl.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/airoha,en7581-gpio-sysctl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha EN7581 GPIO System Controller + +maintainers: + - Christian Marangi <ansuelsmth@xxxxxxxxx> + - Lorenzo Bianconi <lorenzo@xxxxxxxxxx> + +description: + Airoha EN7581 SoC GPIO system controller which provided a register map + for controlling the GPIO, pins and PWM of the SoC. + +properties: + compatible: + items: + - const: airoha,en7581-gpio-sysctl + - const: syscon + - const: simple-mfd + + reg: + maxItems: 1 + + pinctrl: + type: object + $ref: /schemas/pinctrl/airoha,en7581-pinctrl.yaml + description: + Child node definition for EN7581 Pin controller + + pwm: + type: object + $ref: /schemas/pwm/airoha,en7581-pwm.yaml + description: + Child node definition for EN7581 PWM controller + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + system-controller@1fbf0200 { + compatible = "airoha,en7581-gpio-sysctl", "syscon", "simple-mfd"; + reg = <0x1fbf0200 0xc0>; + + pinctrl { + compatible = "airoha,en7581-pinctrl"; + + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + + mmc-pins { + mux { + function = "emmc"; + groups = "emmc"; + }; + }; + + mdio-pins { + mux { + function = "mdio"; + groups = "mdio"; + }; + + conf { + pins = "gpio2"; + output-enable; + }; + }; + }; + + pwm { + compatible = "airoha,en7581-pwm"; + + #pwm-cells = <3>; + }; + }; -- 2.47.0
