From: Dmitry Osipenko <digetx@gmail.com>
Date: Mon, 10 May 2021 20:25:51 +0000 (+0300)
Subject: ARM: tegra: acer-a500: Improve microphone detection
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ef3082db434f3f87b83ccaa1ce4ebfd05535b651;p=linux.git

ARM: tegra: acer-a500: Improve microphone detection

Use edge-triggered interrupt and set delay to 100ms for microphone hook
detection. This doesn't fix any known problems, but there is a smaller
chance to miss insertion of the microphone now, which previously happened
rarely.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
index 2298fc034183b..d7d97b7e47942 100644
--- a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
+++ b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
@@ -420,11 +420,14 @@
 			reg = <0x1a>;
 
 			interrupt-parent = <&gpio>;
-			interrupts = <TEGRA_GPIO(X, 3) IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <TEGRA_GPIO(X, 3) IRQ_TYPE_EDGE_BOTH>;
 
 			gpio-controller;
 			#gpio-cells = <2>;
 
+			micdet-cfg = <0>;
+			micdet-delay = <100>;
+
 			gpio-cfg = <
 				0x0000 /* MIC_LR_OUT#    GPIO, output, low */
 				0x0000 /* FM2018-enable  GPIO, output, low */