use hw_power to implement power_supply_is_system_supplied()

diff --git a/sys/dev/pci/drm/include/linux/power_supply.h b/sys/dev/pci/drm/include/linux/power_supply.h
index 20391f5..706363a 100644 (file)
--- a/sys/dev/pci/drm/include/linux/power_supply.h
+++ b/sys/dev/pci/drm/include/linux/power_supply.h
@@ -6,8 +6,8 @@
 static inline int
 power_supply_is_system_supplied(void)
 {
-       /* XXX return 0 if on battery */
-       return (1);
+       extern int hw_power;
+       return hw_power;
 }
 
 #endif