linux-kernel - [PATCH v2 2/3] ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding

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Message-ID: <20230217124151.236216-3-claudiu.beznea@microchip.com>
Date:   Fri, 17 Feb 2023 14:41:50 +0200
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <perex@...ex.cz>,
        <tiwai@...e.com>, <nicolas.ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>
CC:     <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 2/3] ASoC: dt-bindings: sama7g5-pdmc: add microchip,startup-delay-us binding

Add microchip,startup-delay-us binding to let PDMC users to specify
startup delay.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/sound/microchip,sama7g5-pdmc.yaml   | 6 ++++++
 1 file changed, 6 insertions(+)

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
-- 
2.34.1