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authorMichał Kopeć <michal.kopec@3mdeb.com>2022-02-22 12:28:33 +0100
committerFelix Held <felix-coreboot@felixheld.de>2022-03-07 17:51:07 +0000
commit45037f786c1732e318d1c56e62e5f6b3fe947971 (patch)
treec59d48fb1f4bd36a9d197aa955f129e78ae7c1d5 /src/soc/intel/tigerlake/acpi
parentc3dab9c427988adeec3b242d59b5ee1997f67092 (diff)
soc/intel/tigerlake: Hide PMC and IOM devices
Windows complains on missing drivers for these ACPI devices. Hide them from OS as it doesn't influence the hardware operation. Linux can still probe the drivers correctly. TEST=Boot Windows 11 and see there are no devices with missing drivers. Boot Ubuntu 20.04 and check that drivers corresponding to ACPI HIDs are still probed. Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com> Change-Id: I6c30c08ab730749bddef7ea67c7470c1554bd572 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/soc/intel/tigerlake/acpi')
-rw-r--r--src/soc/intel/tigerlake/acpi/tcss.asl2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/acpi/tcss.asl b/src/soc/intel/tigerlake/acpi/tcss.asl
index 1d58bfb520..50307f4db7 100644
--- a/src/soc/intel/tigerlake/acpi/tcss.asl
+++ b/src/soc/intel/tigerlake/acpi/tcss.asl
@@ -336,6 +336,8 @@ Scope (\_SB.PCI0)
Name (_CRS, ResourceTemplate () {
Memory32Fixed (ReadWrite, IOM_BASE_ADDRESS, IOM_BASE_SIZE)
})
+ /* Hide the device so that Windows does not complain on missing driver */
+ Name (_STA, 0xB)
}
/*