Keep apex in reset mode unless it's used.

Change-Id: I56eb88a1a138290f6939a19e8b973fb78d2e3c40

apex_driver.c

@@ -311,7 +311,7 @@ module_init(apex_init);
 module_exit(apex_exit);
 
 /* Allows device to enter power save upon driver close(). */
-static int allow_power_save;
+static int allow_power_save = 1;
 
 /* Allows SW based clock gating. */
 static int allow_sw_clock_gating;

gasket_core.c

@@ -620,6 +620,16 @@ static int gasket_pci_probe(
 		goto fail5;
 	}
 
+	if (driver_desc->device_close_cb) {
+		/* Perform a device cleanup, so as to place it in Power Save
+		 * Mode. */
+		ret = driver_desc->device_close_cb(gasket_dev);
+		if (ret) {
+			gasket_log_error(
+				gasket_dev, "Device cleanup cb returned %d.", ret);
+		}
+	}
+
 	return 0;
 
 fail5: