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    Subject[PATCH v2 1/5] dt-bindings: gpio: Add HPE GXP GPIO
    Date
    From: Nick Hawkins <nick.hawkins@hpe.com>

    Provide access to the register regions and interrupt for GPIO. There
    will be two drivers available. The first driver under the hpe,gxp-gpio
    binding will provide GPIO information for the VUHC, CSM, and FN2
    host interfaces. The second driver under the hpe,gxp-gpio-pl will
    provide GPIO information from the CPLD interface. The main difference
    and need for two separate bindings is they have different interrupt
    parents. The other is hpe,gxp-gpio is a combination of physical
    and virtual GPIOs where as hpe,gxp-gpio-pl are all physical
    GPIOs from the CPLD.

    Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>

    ---

    v2:
    *Put binding patch before the driver in the series
    *Improved patch description
    *Removed oneOf and items in compatible definition
    *Moved additionalProperties definition to correct spot in file
    *Fixed indentation on example
    *Improved description in .yaml
    ---
    .../bindings/gpio/hpe,gxp-gpio.yaml | 190 ++++++++++++++++++
    1 file changed, 190 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/gpio/hpe,gxp-gpio.yaml

    diff --git a/Documentation/devicetree/bindings/gpio/hpe,gxp-gpio.yaml b/Documentation/devicetree/bindings/gpio/hpe,gxp-gpio.yaml
    new file mode 100644
    index 000000000000..b92b7d72d39b
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/gpio/hpe,gxp-gpio.yaml
    @@ -0,0 +1,190 @@
    +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/gpio/hpe,gxp-gpio.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: HPE GXP gpio controllers
    +
    +maintainers:
    + - Nick Hawkins <nick.hawkins@hpe.com>
    +
    +description:
    + Interruptable GPIO drivers for the HPE GXP that covers multiple interfaces
    + of both physical and virtual GPIO pins.
    +
    +properties:
    + compatible:
    + enum:
    + - hpe,gxp-gpio
    + - hpe,gxp-gpio-pl
    +
    + reg:
    + minItems: 2
    + maxItems: 6
    +
    + reg-names:
    + minItems: 2
    + maxItems: 6
    +
    + gpio-controller: true
    +
    + "#gpio-cells":
    + const: 2
    +
    + gpio-line-names:
    + minItems: 80
    + maxItems: 300
    +
    + interrupts:
    + maxItems: 1
    +
    +required:
    + - compatible
    + - reg
    + - reg-names
    + - gpio-controller
    + - "#gpio-cells"
    +
    +allOf:
    + - if:
    + properties:
    + compatible:
    + contains:
    + enum:
    + - hpe,gxp-gpio
    + then:
    + properties:
    + reg:
    + items:
    + - description: CSM GPIO interface
    + - description: fn2 virtual button GPIO
    + - description: fn2 system status GPIO
    + - description: vuhc GPIO status interface
    + reg-names:
    + items:
    + - const: csm
    + - const: fn2-vbtn
    + - const: fn2-stat
    + - const: vuhc
    + - if:
    + properties:
    + compatible:
    + contains:
    + enum:
    + - hpe,gxp-gpio-pl
    + then:
    + properties:
    + reg:
    + items:
    + - description: Programmable logic device GPIO
    + - description: Programmable logic device interrupt GPIO
    + reg-names:
    + items:
    + - const: base
    + - const: interrupt
    +
    +additionalProperties: false
    +
    +examples:
    + - |
    + gpio@0 {
    + compatible = "hpe,gxp-gpio";
    + reg = <0x0 0x400>, <0x200046 0x1>, <0x200070 0x08>, <0x400064 0x80>;
    + reg-names = "csm", "fn2-vbtn", "fn2-stat", "vuhc";
    + gpio-controller;
    + #gpio-cells = <2>;
    + interrupt-parent = <&vic0>;
    + interrupts = <10>;
    + gpio-line-names = "IOP_LED1", "IOP_LED2",
    + "IOP_LED3", "IOP_LED4",
    + "IOP_LED5", "IOP_LED6",
    + "IOP_LED7", "IOP_LED8",
    + "FAN1_INST", "FAN2_INST",
    + "FAN3_INST", "FAN4_INST",
    + "FAN5_INST", "FAN6_INST",
    + "FAN7_INST", "FAN8_INST",
    + "FAN1_FAIL", "FAN2_FAIL",
    + "FAN3_FAIL", "FAN4_FAIL",
    + "FAN5_FAIL", "FAN6_FAIL",
    + "FAN7_FAIL", "FAN8_FAIL",
    + "FAN1_ID", "FAN2_ID",
    + "FAN3_ID", "FAN4_ID",
    + "FAN5_ID", "FAN6_ID",
    + "FAN7_ID", "FAN8_ID",
    + "IDENTIFY", "HEALTH_RED",
    + "HEALTH_AMBER", "POWER_BUTTON",
    + "UID_PRESS", "SLP",
    + "NMI_BUTTON", "RESET_BUTTON",
    + "SIO_S5", "SO_ON_CONTROL",
    + "PSU1_INST", "PSU2_INST",
    + "PSU3_INST", "PSU4_INST",
    + "PSU5_INST", "PSU6_INST",
    + "PSU7_INST", "PSU8_INST",
    + "PSU1_AC", "PSU2_AC",
    + "PSU3_AC", "PSU4_AC",
    + "PSU5_AC", "PSU6_AC",
    + "PSU7_AC", "PSU8_AC",
    + "PSU1_DC", "PSU2_DC",
    + "PSU3_DC", "PSU4_DC",
    + "PSU5_DC", "PSU6_DC",
    + "PSU7_DC", "PSU8_DC",
    + "", "",
    + "", "",
    + "", "",
    + "", "",
    + "", "",
    + "", "",
    + "", "";
    + };
    +
    + - |
    + gpio@51000300 {
    + compatible = "hpe,gxp-gpio-pl";
    + reg = <0x51000300 0x40>, <0x51000380 0x10>;
    + reg-names = "base", "interrupt";
    + gpio-controller;
    + #gpio-cells = <2>;
    + interrupt-parent = <&vic0>;
    + interrupts = <24>;
    + gpio-line-names = "IOP_LED1", "IOP_LED2",
    + "IOP_LED3", "IOP_LED4",
    + "IOP_LED5", "IOP_LED6",
    + "IOP_LED7", "IOP_LED8",
    + "FAN1_INST", "FAN2_INST",
    + "FAN3_INST", "FAN4_INST",
    + "FAN5_INST", "FAN6_INST",
    + "FAN7_INST", "FAN8_INST",
    + "FAN1_FAIL", "FAN2_FAIL",
    + "FAN3_FAIL", "FAN4_FAIL",
    + "FAN5_FAIL", "FAN6_FAIL",
    + "FAN7_FAIL", "FAN8_FAIL",
    + "FAN1_ID", "FAN2_ID",
    + "FAN3_ID", "FAN4_ID",
    + "FAN5_ID", "FAN6_ID",
    + "FAN7_ID", "FAN8_ID",
    + "IDENTIFY", "HEALTH_RED",
    + "HEALTH_AMBER", "POWER_BUTTON",
    + "UID_PRESS", "SLP",
    + "NMI_BUTTON", "RESET_BUTTON",
    + "SIO_S5", "SO_ON_CONTROL",
    + "PSU1_INST", "PSU2_INST",
    + "PSU3_INST", "PSU4_INST",
    + "PSU5_INST", "PSU6_INST",
    + "PSU7_INST", "PSU8_INST",
    + "PSU1_AC", "PSU2_AC",
    + "PSU3_AC", "PSU4_AC",
    + "PSU5_AC", "PSU6_AC",
    + "PSU7_AC", "PSU8_AC",
    + "PSU1_DC", "PSU2_DC",
    + "PSU3_DC", "PSU4_DC",
    + "PSU5_DC", "PSU6_DC",
    + "PSU7_DC", "PSU8_DC",
    + "", "",
    + "", "",
    + "", "",
    + "", "",
    + "", "",
    + "", "",
    + "", "";
    + };
    --
    2.17.1
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