Unverified Commit 75b0adbb authored by Dan Murphy's avatar Dan Murphy Committed by Mark Brown
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ASoC: tlv320adcx140: Add device tree property for PDM edges



Add a device tree property to configure the PDM sampling edge for each
digital microphone.

Signed-off-by: default avatarDan Murphy <dmurphy@ti.com>
CC: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200514123338.20392-2-dmurphy@ti.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7cfa6102
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Original line number Diff line number Diff line
@@ -63,6 +63,29 @@ properties:
      - $ref: /schemas/types.yaml#/definitions/uint32
      - enum: [0, 1, 2]

  ti,pdm-edge-select:
    description: |
       Defines the PDMCLK sampling edge configuration for the PDM inputs.  This
       array is defined as <PDMIN1 PDMIN2 PDMIN3 PDMIN4>.

       0 - (default) Odd channel is latched on the negative edge and even
       channel is latched on the the positive edge.
       1 - Odd channel is latched on the positive edge and even channel is
       latched on the the negative edge.

       PDMIN1 - PDMCLK latching edge used for channel 1 and 2 data
       PDMIN2 - PDMCLK latching edge used for channel 3 and 4 data
       PDMIN3 - PDMCLK latching edge used for channel 5 and 6 data
       PDMIN4 - PDMCLK latching edge used for channel 7 and 8 data

    allOf:
      - $ref: /schemas/types.yaml#/definitions/uint32-array
      - minItems: 1
        maxItems: 4
        items:
          maximum: 1
        default: [0, 0, 0, 0]

required:
  - compatible
  - reg
@@ -77,6 +100,7 @@ examples:
        compatible = "ti,tlv320adc5140";
        reg = <0x4c>;
        ti,mic-bias-source = <6>;
        ti,pdm-edge-select = <0 1 0 1>;
        reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
      };
    };