linux-kernel - [PATCH 1/2] ASoC: bindings: wm8960: Add property for headphone detection

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Date:   Wed,  3 Jun 2020 18:26:52 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     perex@...ex.cz, tiwai@...e.com, lgirdwood@...il.com,
        broonie@...nel.org, ckeepax@...nsource.cirrus.com,
        allison@...utok.net, info@...ux.net, tglx@...utronix.de,
        patches@...nsource.cirrus.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org
Subject: [PATCH 1/2] ASoC: bindings: wm8960: Add property for headphone detection

Add two properties for headphone detection.

wlf,hp-cfg: A list of headphone jack detect configuration register values
wlf,gpio-cfg: A list of GPIO configuration register values

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 Documentation/devicetree/bindings/sound/wm8960.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/wm8960.txt b/Documentation/devicetree/bindings/sound/wm8960.txt
index 6d29ac3750ee..85d3b287108c 100644
--- a/Documentation/devicetree/bindings/sound/wm8960.txt
+++ b/Documentation/devicetree/bindings/sound/wm8960.txt
@@ -21,6 +21,17 @@ Optional properties:
 	enabled and disabled together with HP_L and HP_R pins in response to jack
 	detect events.
 
+  - wlf,hp-cfg: A list of headphone jack detect configuration register values.
+		The list must be 3 entries long.
+		hp-cfg[0]: HPSEL[1:0] of R48 (Additional Control 4).
+		hp-cfg[1]: {HPSWEN:HPSWPOL} of R24 (Additional Control 2).
+		hp-cfg[2]: {TOCLKSEL:TOEN} of R23 (Additional Control 1).
+
+  - wlf,gpio-cfg: A list of GPIO configuration register values.
+		  The list must be 2 entries long.
+		  gpio-cfg[0]: ALRCGPIO of R9 (Audio interface)
+		  gpio-cfg[1]: {GPIOPOL:GPIOSEL[2:0]} of R48 (Additional Control 4).
+
 Example:
 
 wm8960: codec@1a {
-- 
2.21.0