linux-kernel - [PATCH 16/32] ARM: dts: omap3-gta04: map antenna detect GPIO to SW_LINEIN

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Date:   Wed, 25 Jul 2018 08:58:48 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Marek Belisko <marek@...delico.com>,
        Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, letux-kernel@...nphoenux.org,
        "H. Nikolaus Schaller" <hns@...delico.com>
Subject: [PATCH 16/32] ARM: dts: omap3-gta04: map antenna detect GPIO to SW_LINEIN_INSERT key event

GTA04 can detect presence/absence or plug-in of an external
GPS antenna through a gpio. The best match for an event code
is SW_LINEIN_INSERT.

Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
 arch/arm/boot/dts/omap3-gta04.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 5bf95e04392b..4947e635c1af 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -50,6 +50,21 @@
 		};
 	};
 
+	antenna-detect {
+		compatible = "gpio-keys";
+
+		gps_antenna_button: gps-antenna-button {
+			label = "GPS_EXT_ANT";
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_LINEIN_INSERT>;
+			gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>; /* GPIO144 */
+			interrupt-parent = <&gpio5>;
+			interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
+			debounce-interval = <10>;
+			wakeup-source;
+		};
+	};
+
 	sound {
 		compatible = "ti,omap-twl4030";
 		ti,model = "gta04";
-- 
2.12.2