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@xxxxxxxxxxxxx>
---
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 98f31f1814d0..28e041ec4e98 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
--
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