Add a device tree property to configure the PDM sampling edge for each digital microphone.
CC: Rob Herring robh@kernel.org Signed-off-by: Dan Murphy dmurphy@ti.com --- .../devicetree/bindings/sound/tlv320adcx140.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml index ab2268c0ee67..55668c7d261d 100644 --- a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml +++ b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml @@ -63,6 +63,19 @@ properties: - $ref: /schemas/types.yaml#/definitions/uint32 - enum: [0, 1, 2]
+ ti,pdm-edge-select: + description: | + Defines the sampling edge configuration for the PDM inputs. This is an + array defined as <PDMIN1 PDMIN2 PDMIN3 PDMIN4>. 0 (default) is negative + sampling edge and 1 is positive sampling edge. + 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 +90,7 @@ 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>; }; };