linux-kernel - [PATCH v1 1/2] dt-bindings: sound: tegra-wm8903: Document new nvidia,headset property

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Message-Id: <20200330204011.18465-2-digetx@gmail.com>
Date:   Mon, 30 Mar 2020 23:40:10 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Rob Herring <robh+dt@...nel.org>, Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Stephen Warren <swarren@...dotorg.org>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/2] dt-bindings: sound: tegra-wm8903: Document new nvidia,headset property

Some devices have a 4-pin headset jack instead of 3-pin microphone jack.
The new boolean nvidia,headset property tells that the Mic Jack represents
the state of a headset microphone. This additional hardware description is
needed because microphone detection procedure differs in a case of a 4-pin
jack from a 3-pin jack.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 .../devicetree/bindings/sound/nvidia,tegra-audio-wm8903.txt      | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8903.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8903.txt
index a8f2b0c56c79..bbd581a8c5bc 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8903.txt
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8903.txt
@@ -29,6 +29,7 @@ Optional properties:
 - nvidia,hp-det-gpios : The GPIO that detect headphones are plugged in
 - nvidia,int-mic-en-gpios : The GPIO that enables the internal microphone
 - nvidia,ext-mic-en-gpios : The GPIO that enables the external microphone
+- nvidia,headset : The Mic Jack represents state of the headset microphone pin
 
 Example:
 
-- 
2.25.1