brcm,ns-pinmux.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/pinctrl/brcm,ns-pinmux.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Broadcom Northstar pins mux controller
    8 
    9 maintainers:
   10   - Rafał Miłecki <rafal@milecki.pl>
   11 
   12 description:
   13   Some of Northstar SoCs's pins can be used for various purposes thanks to the
   14   mux controller. This binding allows describing mux controller and listing
   15   available functions. They can be referenced later by other bindings to let
   16   system configure controller correctly.
   17 
   18   A list of pins varies across chipsets so few bindings are available.
   19 
   20 properties:
   21   compatible:
   22     enum:
   23       - brcm,bcm4708-pinmux
   24       - brcm,bcm4709-pinmux
   25       - brcm,bcm53012-pinmux
   26 
   27   reg:
   28     maxItems: 1
   29 
   30   reg-names:
   31     const: cru_gpio_control
   32 
   33 patternProperties:
   34   '-pins$':
   35     type: object
   36     description: pin node
   37     $ref: pinmux-node.yaml#
   38 
   39     properties:
   40       function:
   41         enum: [ spi, i2c, pwm, uart1, mdio, uart2, sdio ]
   42       groups:
   43         minItems: 1
   44         maxItems: 4
   45         items:
   46           enum: [ spi_grp, i2c_grp, pwm0_grp, pwm1_grp, pwm2_grp, pwm3_grp,
   47                   uart1_grp, mdio_grp, uart2_grp, sdio_pwr_grp, sdio_1p8v_grp ]
   48 
   49     required:
   50       - function
   51       - groups
   52 
   53     additionalProperties: false
   54 
   55 allOf:
   56   - $ref: "pinctrl.yaml#"
   57   - if:
   58       properties:
   59         compatible:
   60           contains:
   61             const: brcm,bcm4708-pinmux
   62     then:
   63       patternProperties:
   64         '-pins$':
   65           properties:
   66             function:
   67               enum: [ spi, i2c, pwm, uart1 ]
   68             groups:
   69               items:
   70                 enum: [ spi_grp, i2c_grp, pwm0_grp, pwm1_grp, pwm2_grp, pwm3_grp,
   71                         uart1_grp ]
   72 
   73 required:
   74   - reg
   75   - reg-names
   76 
   77 additionalProperties: false
   78 
   79 examples:
   80   - |
   81     pinctrl@1800c1c0 {
   82         compatible = "brcm,bcm4708-pinmux";
   83         reg = <0x1800c1c0 0x24>;
   84         reg-names = "cru_gpio_control";
   85 
   86         spi-pins {
   87             function = "spi";
   88             groups = "spi_grp";
   89         };
   90     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/pinctrl/brcm,ns-pinmux.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/pinctrl/brcm,ns-pinmux.yaml