linux-kernel - [PATCH RESEND v4 4/4] ARM: dts: sun8i: tbs-a711: Add support for volume keys input

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Message-Id: <20190327023339.25975-5-megous@megous.com>
Date:   Wed, 27 Mar 2019 03:33:39 +0100
From:   megous@...ous.com
To:     maxime.ripard@...e-electrons.com, wens@...e.org, robh@...nel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        mark.rutland@....com
Cc:     Ondrej Jirman <megous@...ous.com>,
        Ziping Chen <techping.chan@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        linux-input@...r.kernel.org, hdegoede@...hat.com
Subject: [PATCH RESEND v4 4/4] ARM: dts: sun8i: tbs-a711: Add support for volume keys input

From: Ondrej Jirman <megous@...ous.com>

TBS A711 tablet has volume up/down keys connected to r_lradc. Add
support for these keys.

Signed-off-by: Ondrej Jirman <megous@...ous.com>
---
 arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
index 1e840ab5a541..6ecdc11b7059 100644
--- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
@@ -46,6 +46,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "TBS A711 Tablet";
@@ -200,6 +201,25 @@
 	status = "okay";
 };
 
+&r_lradc {
+	vref-supply = <&reg_aldo2>;
+	status = "okay";
+
+	button@210 {
+		label = "Volume Up";
+		linux,code = <KEY_VOLUMEUP>;
+		channel = <0>;
+		voltage = <210000>;
+	};
+
+	button@410 {
+		label = "Volume Down";
+		linux,code = <KEY_VOLUMEDOWN>;
+		channel = <0>;
+		voltage = <410000>;
+	};
+};
+
 &r_rsb {
 	status = "okay";
 
-- 
2.21.0