Unverified Commit c6cec088 authored by Vlad.Karpovich's avatar Vlad.Karpovich Committed by Mark Brown
Browse files

ASoC: dt-bindings: cs35l45: GPIOs configuration 



This adds description of CS35L45 GPIOs configuration.

Signed-off-by: default avatarVlad Karpovich <vkarpovi@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230315154722.3911463-2-vkarpovi@opensource.cirrus.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent fa8c052b

Documentation/devicetree/bindings/sound/cirrus,cs35l45.yaml

+78 −0
Original line number Diff line number Diff line
@@ -50,6 +50,74 @@ properties: 
    maximum: 3

    default: 2



patternProperties:

  "^cirrus,gpio-ctrl[1-3]$":

    description:

      GPIO pins configuration.

    type: object

    additionalProperties: false

    properties:

      gpio-dir:

        description:

          GPIO pin direction. Valid only when 'gpio-ctrl' is 1

            0 = Output

            1 = Input

        $ref: "/schemas/types.yaml#/definitions/uint32"

        minimum: 0

        maximum: 1

        default: 1

      gpio-lvl:

        description:

          GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0

            0 = Low

            1 = High

        $ref: "/schemas/types.yaml#/definitions/uint32"

        minimum: 0

        maximum: 1

        default: 0

      gpio-op-cfg:

        description:

          GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0

            0 = CMOS

            1 = Open Drain

        $ref: "/schemas/types.yaml#/definitions/uint32"

        minimum: 0

        maximum: 1

        default: 0

      gpio-pol:

        description:

          GPIO output polarity select. Valid only when 'gpio-ctrl' is 1

          and 'gpio-dir' is 0

            0 = Non-inverted, Active High

            1 = Inverted, Active Low

        $ref: "/schemas/types.yaml#/definitions/uint32"

        minimum: 0

        maximum: 1

        default: 0

      gpio-ctrl:

        description:

          Defines the function of the GPIO pin.

          GPIO1

            0 = High impedance input

            1 = Pin acts as a GPIO, direction controlled by 'gpio-dir'

            2 = Pin acts as MDSYNC, direction controlled by MDSYNC

            3-7 = Reserved

          GPIO2

            0 = High impedance input

            1 = Pin acts as a GPIO, direction controlled by 'gpio-dir'

            2 = Pin acts as open drain INT

            3 = Reserved

            4 = Pin acts as push-pull output INT. Active low.

            5 = Pin acts as push-pull output INT. Active high.

            6,7 = Reserved

          GPIO3

            0 = High impedance input

            1 = Pin acts as a GPIO, direction controlled by 'gpio-dir'

            2-7 = Reserved

        $ref: "/schemas/types.yaml#/definitions/uint32"

        minimum: 0

        maximum: 7

        default: 0

required:

  - compatible

  - reg
@@ -74,5 +142,15 @@ examples: 
          reset-gpios = <&gpio 110 0>;

          cirrus,asp-sdout-hiz-ctrl = <(CS35L45_ASP_TX_HIZ_UNUSED |

                                        CS35L45_ASP_TX_HIZ_DISABLED)>;

          cirrus,gpio-ctrl1 {

             gpio-ctrl = <0x2>;

          };

          cirrus,gpio-ctrl2 {

             gpio-ctrl = <0x2>;

          };

          cirrus,gpio-ctrl3 {

             gpio-ctrl = <0x1>;

             gpio-dir = <0x1>;

          };

        };

    };