Commit 8b872a91 authored by Dimitri Fedrau's avatar Dimitri Fedrau Committed by Uwe Kleine-König
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dt-bindings: pwm: add support for MC33XS2410 



Adding documentation for NXPs MC33XS2410 high side switch.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarDimitri Fedrau <dimitri.fedrau@liebherr.com>
Link: https://lore.kernel.org/r/20250407-mc33xs2410-v9-1-57adcb56a6e4@liebherr.com


Signed-off-by: default avatarUwe Kleine-König <ukleinek@kernel.org>
parent e373991e

Documentation/devicetree/bindings/pwm/nxp,mc33xs2410.yaml

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/pwm/nxp,mc33xs2410.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: High-side switch MC33XS2410



maintainers:

  - Dimitri Fedrau <dima.fedrau@gmail.com>



allOf:

  - $ref: pwm.yaml#

  - $ref: /schemas/spi/spi-peripheral-props.yaml#



properties:

  compatible:

    const: nxp,mc33xs2410



  reg:

    maxItems: 1



  spi-max-frequency:

    maximum: 10000000



  spi-cpha: true



  spi-cs-setup-delay-ns:

    minimum: 100

    default: 100



  spi-cs-hold-delay-ns:

    minimum: 10

    default: 10



  spi-cs-inactive-delay-ns:

    minimum: 300

    default: 300



  reset-gpios:

    description:

      GPIO connected to the active low reset pin.

    maxItems: 1



  "#pwm-cells":

    const: 3



  pwm-names:

    items:

      - const: di0

      - const: di1

      - const: di2

      - const: di3



  pwms:

    description:

      Direct inputs(di0-3) are used to directly turn-on or turn-off the

      outputs.

    maxItems: 4



  interrupts:

    maxItems: 1



  clocks:

    description:

      The external clock can be used if the internal clock doesn't meet

      timing requirements over temperature and voltage operating range.

    maxItems: 1



  vdd-supply:

    description:

      Logic supply voltage



  vspi-supply:

    description:

      Supply voltage for SPI



  vpwr-supply:

    description:

      Power switch supply



required:

  - compatible

  - reg



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/gpio/gpio.h>

    #include <dt-bindings/interrupt-controller/irq.h>

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



       pwm@0 {

           compatible = "nxp,mc33xs2410";

           reg = <0x0>;

           spi-max-frequency = <4000000>;

           spi-cpha;

           spi-cs-setup-delay-ns = <100>;

           spi-cs-hold-delay-ns = <10>;

           spi-cs-inactive-delay-ns = <300>;

           reset-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;

           #pwm-cells = <3>;

           pwm-names = "di0", "di1", "di2", "di3";

           pwms = <&pwm0 0 1000000>,

                  <&pwm1 0 1000000>,

                  <&pwm2 0 1000000>,

                  <&pwm3 0 1000000>;

           interrupt-parent = <&gpio0>;

           interrupts = <31 IRQ_TYPE_LEVEL_LOW>;

           clocks = <&clk_ext_fixed>;

           vdd-supply = <&reg_3v3>;

           vspi-supply = <&reg_3v3>;

           vpwr-supply = <&reg_24v0>;

       };

    };