From 143a2f011c4471511887807822d3fd71f25f5169 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Tue, 28 Feb 2023 13:01:44 +0200 Subject: ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding PDMC can work with different types of microphones, thus different boards could have different microphones. Depending on microphone type the PDMC would need to wait longer or shorter period (at startup) than the default chosen one to filter unwanted noise. Thus add microchip,startup-delay-us binding to let PDMC users to specify startup delay. Signed-off-by: Claudiu Beznea Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20230228110145.3770525-3-claudiu.beznea@microchip.com Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml') diff --git a/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml b/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml index c4cf1e5ab84b..9b40268537cb 100644 --- a/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml +++ b/Documentation/devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml @@ -67,6 +67,12 @@ properties: maxItems: 4 uniqueItems: true + microchip,startup-delay-us: + description: | + Specifies the delay in microseconds that needs to be applied after + enabling the PDMC microphones to avoid unwanted noise due to microphones + not being ready. + required: - compatible - reg -- cgit v1.2.3