diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index 99fa6a89e0b9..69860a60bb7a 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -1,25 +1,27 @@
 # SPDX-License-Identifier: GPL-2.0
 #
-# Makefile for most of the non-PCI devices in PA-RISC machines
+# Makefile PCI and non-PCI devices in PA-RISC machines
+#
+# Keep the order below, e.g.
+# - ccio before any potential subdevices
+# - gsc is required before lasi and wax
+# - asp and wax before the EISA adapters for the IRQ regions
+# - EISA must come before PCI to be sure it gets IRQ region
 #
 
-# I/O SAPIC is also on IA64 platforms.
-# The two could be merged into a common source some day.
 obj-$(CONFIG_IOSAPIC)		+= iosapic.o
 obj-$(CONFIG_IOMMU_SBA)		+= sba_iommu.o
 obj-$(CONFIG_PCI_LBA)		+= lba_pci.o
 obj-$(CONFIG_IOMMU_CCIO)	+= ccio-dma.o
 
 obj-$(CONFIG_GSC)		+= gsc.o
-
-obj-$(CONFIG_HPPB)		+= hppb.o
-obj-$(CONFIG_GSC_DINO)		+= dino.o
 obj-$(CONFIG_GSC_LASI)		+= lasi.o asp.o
 obj-$(CONFIG_GSC_WAX)		+= wax.o
 obj-$(CONFIG_EISA)		+= eisa.o eisa_enumerator.o eisa_eeprom.o
+obj-$(CONFIG_HPPB)		+= hppb.o
+obj-$(CONFIG_GSC_DINO)		+= dino.o
 
 obj-$(CONFIG_SUPERIO)		+= superio.o
 obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
 obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
 obj-y				+= power.o
-