sensecap solar stuff

zephcore/boards/nrf52840/sensecap_solar/board.overlay

@@ -2,8 +2,9 @@
  * SenseCAP Solar — ZephCore overlay
  * SPDX-License-Identifier: MIT
  *
- * GPS aliases for ZephyrGPSManager. gnss-nmea-generic has no on-off-gpios,
- * so ZephyrGPSManager owns P1.05 (gps-enable alias) exclusively.
+ * GPS aliases for ZephyrGPSManager. P1.05 (gps-enable alias) is shared
+ * with the air530z driver's on-off-gpios (T-Echo pattern): the driver
+ * powers the module at init, ZephyrGPSManager duty-cycles it after.
  */
 
 #include "../../common/qspi-ext.dtsi"

zephcore/boards/nrf52840/sensecap_solar/sensecap_solar_nrf52840.dts

@@ -162,8 +162,15 @@
 	pinctrl-1 = <&uart0_sleep>;
 	pinctrl-names = "default", "sleep";
 
+	/* L76K is CASIC/Air530Z-family silicon — same PCAS command set as the
+	 * Wio Tracker L1 / T-Echo / ThinkNode M6 modules, so use the air530z
+	 * driver (constellation via PCAS04, fix rate via PCAS02).
+	 * on-off-gpios shares P1.05 with the gps-enable alias (T-Echo pattern):
+	 * driver powers the module for its init conversation, ZephyrGPSManager
+	 * drives the same pin for duty cycling. */
 	gnss: gnss {
-		compatible = "gnss-nmea-generic";
+		compatible = "luatos,air530z";
+		on-off-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
 	};
 };