linux-kernel - [PATCH AUTOSEL 4.19 2/4] ASoC: dt-bindings: rt5645: add cbj sleeve gpio property

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Message-ID: <20240507231436.395448-2-sashal@kernel.org>
Date: Tue,  7 May 2024 19:14:33 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Derek Fang <derek.fang@...ltek.com>,
	Mark Brown <broonie@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	lgirdwood@...il.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 2/4] ASoC: dt-bindings: rt5645: add cbj sleeve gpio property

From: Derek Fang <derek.fang@...ltek.com>

[ Upstream commit 306b38e3fa727d22454a148a364123709e356600 ]

Add an optional gpio property to control external CBJ circuits
to avoid some electric noise caused by sleeve/ring2 contacts floating.

Signed-off-by: Derek Fang <derek.fang@...ltek.com>

Link: https://msgid.link/r/20240408091057.14165-2-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 Documentation/devicetree/bindings/sound/rt5645.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rt5645.txt b/Documentation/devicetree/bindings/sound/rt5645.txt
index a03f9a872a716..bfb2217a9a658 100644
--- a/Documentation/devicetree/bindings/sound/rt5645.txt
+++ b/Documentation/devicetree/bindings/sound/rt5645.txt
@@ -16,6 +16,11 @@ Optional properties:
   a GPIO spec for the external headphone detect pin. If jd-mode = 0,
   we will get the JD status by getting the value of hp-detect-gpios.
 
+- cbj-sleeve-gpios:
+  a GPIO spec to control the external combo jack circuit to tie the sleeve/ring2
+  contacts to the ground or floating. It could avoid some electric noise from the
+  active speaker jacks.
+
 - realtek,in2-differential
   Boolean. Indicate MIC2 input are differential, rather than single-ended.
 
@@ -64,6 +69,7 @@ codec: rt5650@1a {
 	compatible = "realtek,rt5650";
 	reg = <0x1a>;
 	hp-detect-gpios = <&gpio 19 0>;
+	cbj-sleeve-gpios = <&gpio 20 0>;
 	interrupt-parent = <&gpio>;
 	interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
 	realtek,dmic-en = "true";
-- 
2.43.0