ssdt: Fix building of legacy acpi tables on current iasl compiler

Recent versions of the iasl compiler raise an error if the table id is
longer than 8 characters.  Older versions of iasl would silently
truncate the table id to 8 characters.  Change the ssdt-misc and
ssdt-pcihp files to use an 8 character id - this should not directly
impact the generated aml code as the table id was already being
truncated - but may help those wishing to manually compile the tables.

Reported by Michael Tokarev, Vivia Nikolaidou, and several others.

Signed-off-by: Kevin O'Connor <>
(cherry picked from commit 8c3f57ea1217ea0c80a72898bc35baa0e14af0e0)
diff --git a/src/fw/ssdt-misc.dsl b/src/fw/ssdt-misc.dsl
index acc850e..d1d2c9e 100644
--- a/src/fw/ssdt-misc.dsl
+++ b/src/fw/ssdt-misc.dsl
@@ -1,6 +1,6 @@
 ACPI_EXTRACT_ALL_CODE ssdp_misc_aml
-DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC", "BXSSDTSUSP", 0x1)
+DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC", "BXSSDTSU", 0x1)
diff --git a/src/fw/ssdt-pcihp.dsl b/src/fw/ssdt-pcihp.dsl
index cb24c11..518a5eb 100644
--- a/src/fw/ssdt-pcihp.dsl
+++ b/src/fw/ssdt-pcihp.dsl
@@ -1,6 +1,6 @@
 ACPI_EXTRACT_ALL_CODE ssdp_pcihp_aml
-DefinitionBlock ("ssdt-pcihp.aml", "SSDT", 0x01, "BXPC", "BXSSDTPCIHP", 0x1)
+DefinitionBlock ("ssdt-pcihp.aml", "SSDT", 0x01, "BXPC", "BXSSDTPC", 0x1)