Commit d7d0efaf authored by Anjelique Melendez's avatar Anjelique Melendez Committed by Lee Jones
Browse files

dt-bindings: leds: leds-qcom-lpg: Add support for LPG PPG 



Update leds-qcom-lpg binding to support LPG PPG.

Signed-off-by: default avatarAnjelique Melendez <quic_amelende@quicinc.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231221185838.28440-3-quic_amelende@quicinc.com


Signed-off-by: default avatarLee Jones <lee@kernel.org>
parent f574751c

Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml

+81 −1
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ maintainers: 


description: >

  The Qualcomm Light Pulse Generator consists of three different hardware blocks;

  a ramp generator with lookup table, the light pulse generator and a three

  a ramp generator with lookup table (LUT), the light pulse generator and a three

  channel current sink. These blocks are found in a wide range of Qualcomm PMICs.



properties:
@@ -63,6 +63,29 @@ properties: 
        - description: dtest line to attach

        - description: flags for the attachment



  nvmem:

    description: >

      This property is required for PMICs that supports PPG, which is when a

      PMIC stores LPG per-channel data and pattern LUT in SDAM modules instead

      of in a LUT peripheral. For PMICs, such as PM8350C, per-channel data

      and pattern LUT is separated into 2 SDAM modules. In that case, phandles

      to both SDAM modules need to be specified.

    minItems: 1

    maxItems: 2



  nvmem-names:

    minItems: 1

    items:

      - const: lpg_chan_sdam

      - const: lut_sdam



  qcom,pbs:

    $ref: /schemas/types.yaml#/definitions/phandle

    description: >

      Phandle of the Qualcomm Programmable Boot Sequencer node (PBS).

      PBS node is used to trigger LPG pattern sequences for PMICs that support

      single SDAM PPG.



  multi-led:

    type: object

    $ref: leds-class-multicolor.yaml#
@@ -106,6 +129,32 @@ required: 


additionalProperties: false



allOf:

  - if:

      properties:

        compatible:

          contains:

            const: qcom,pmi632-lpg

    then:

      properties:

        nvmem:

          maxItems: 1

        nvmem-names:

          maxItems: 1

  - if:

      properties:

        compatible:

          contains:

            enum:

              - qcom,pm8350c-pwm

              - qcom,pm8550-pwm

    then:

      properties:

        nvmem:

          minItems: 2

        nvmem-names:

          minItems: 2



examples:

  - |

    #include <dt-bindings/leds/common.h>
@@ -191,4 +240,35 @@ examples: 
      compatible = "qcom,pm8916-pwm";

      #pwm-cells = <2>;

    };

  - |

    #include <dt-bindings/leds/common.h>



    led-controller {

      compatible = "qcom,pmi632-lpg";

      #address-cells = <1>;

      #size-cells = <0>;

      #pwm-cells = <2>;

      nvmem-names = "lpg_chan_sdam";

      nvmem = <&pmi632_sdam_7>;

      qcom,pbs = <&pmi632_pbs_client3>;



      led@1 {

        reg = <1>;

        color = <LED_COLOR_ID_RED>;

        label = "red";

      };



      led@2 {

        reg = <2>;

        color = <LED_COLOR_ID_GREEN>;

        label = "green";

      };



      led@3 {

        reg = <3>;

        color = <LED_COLOR_ID_BLUE>;

        label = "blue";

      };

    };



...