linux-kernel - [PATCH v2 10/12] MIPS: DTS: CI20: add DT node for SW1 as Enter button

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Message-Id: <c3ee5a9d9831c291cff3762c01a6f3d8665745d2.1581696624.git.hns@goldelico.com>
Date:   Fri, 14 Feb 2020 17:10:22 +0100
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Paul Boddie <paul@...die.org.uk>,
        Paul Cercueil <paul@...pouillou.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paulburton@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "H. Nikolaus Schaller" <hns@...delico.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Kees Cook <keescook@...omium.org>
Cc:     devicetree@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        letux-kernel@...nphoenux.org, kernel@...a-handheld.com
Subject: [PATCH v2 10/12] MIPS: DTS: CI20: add DT node for SW1 as Enter button

The SW1 button can be used as a simple one-button keyboard
and is connected to PD17.

Note: SW1 has a second meaning to change the boot sequence
when pressed while powering on.

Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
 arch/mips/boot/dts/ingenic/ci20.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index b4a820313992..8f9d182566db 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -4,6 +4,7 @@
 #include "jz4780.dtsi"
 #include <dt-bindings/clock/ingenic,tcu.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
 	compatible = "img,ci20", "ingenic,jz4780";
@@ -25,6 +26,17 @@
 		       0x30000000 0x30000000>;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		sw1 {
+			label = "ci20:sw1";
+			linux,code = <KEY_ENTER>;
+			gpios = <&gpd 17 GPIO_ACTIVE_HIGH>;
+			wakeup-source;
+		};
+	};
+
 	leds {
 		compatible = "gpio-leds";
 
-- 
2.23.0