[alsa-devel] [PATCH 2/3] ASoC: dt-bindings: rt5682: add button delay device property

shumingf at realtek.com shumingf at realtek.com
Wed Oct 30 09:55:56 CET 2019


From: Shuming Fan <shumingf at realtek.com>

The btndet-delay device property could control the HW debounce time.
It is easy to adjust the sensitivity of push button.

Signed-off-by: Shuming Fan <shumingf at realtek.com>
---
 Documentation/devicetree/bindings/sound/rt5682.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rt5682.txt b/Documentation/devicetree/bindings/sound/rt5682.txt
index 312e9a129530..30e927a28369 100644
--- a/Documentation/devicetree/bindings/sound/rt5682.txt
+++ b/Documentation/devicetree/bindings/sound/rt5682.txt
@@ -27,6 +27,11 @@ Optional properties:
 
 - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
 
+- realtek,btndet-delay
+  The debounce delay for push button.
+  The delay time is realtek,btndet-delay value multiple of 8.192 ms.
+  If absent, the default is 16.
+
 Pins on the device (for linking into audio routes) for RT5682:
 
   * DMIC L1
@@ -47,4 +52,5 @@ rt5682 {
 	realtek,dmic1-data-pin = <1>;
 	realtek,dmic1-clk-pin = <1>;
 	realtek,jd-src = <1>;
+	realtek,btndet-delay = <16>;
 };
-- 
2.23.0



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