diff -ru dahdi-linux-complete-3.1.0+3.1.0.orig/include/dahdi/kernel.h dahdi-linux-complete-3.1.0+3.1.0/include/dahdi/kernel.h
--- dahdi-linux-complete-3.1.0+3.1.0.orig/include/dahdi/kernel.h	2019-10-03 11:48:09.000000000 -0300
+++ dahdi-linux-complete-3.1.0+3.1.0/include/dahdi/kernel.h	2020-10-03 10:31:45.068448100 -0300
@@ -58,7 +58,8 @@
 
 #include <linux/poll.h>
 
-#ifdef CONFIG_PCI
+#if defined(CONFIG_PCI) && \
+	(LINUX_VERSION_CODE < KERNEL_VERSION(5, 4, 0))
 #include <linux/pci-aspm.h>
 #endif