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

[Sasha Levin <sashal@kernel.org>]

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

Link: https://msgid.link/r/20240408091057.14165-2-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.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