From 75b0adbb0806a141b0b5f074cd6bd58bb9870c0d Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Thu, 14 May 2020 07:33:37 -0500 Subject: [PATCH] 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: Dan Murphy CC: Rob Herring Link: https://lore.kernel.org/r/20200514123338.20392-2-dmurphy@ti.com Signed-off-by: Mark Brown --- .../bindings/sound/tlv320adcx140.yaml | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml index ab2268c0ee67..daa6cc0e031b 100644 --- a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml +++ b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml @@ -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 . + + 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>; }; };