[Nouveau] [PATCH 2/4] ACPI: OSI: Remove Linux-Lenovo-NV-HDMI-Audio _OSI string

Mario Limonciello mario.limonciello at amd.com
Tue Aug 23 18:51:32 UTC 2022


This string was introduced because drivers for NVIDIA hardware
didn't handle HDMI properly.  This was fixed by commit b516ea586d71 ("PCI:
Enable NVIDIA HDA controllers"). So vendors shouldn't be using this
string to modify ASL anymore.

Suggested-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
Reviewed-by: Lyude Paul <lyude at redhat.com>
Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
---
 drivers/acpi/osi.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index c2f6b2f553d9..0d635eec87c4 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -44,14 +44,6 @@ osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
 	{"Processor Device", true},
 	{"3.0 _SCP Extensions", true},
 	{"Processor Aggregator Device", true},
-	/*
-	 * Linux-Lenovo-NV-HDMI-Audio is used by BIOS to power on NVidia's HDMI
-	 * audio device which is turned off for power-saving in Windows OS.
-	 * This power management feature observed on some Lenovo Thinkpad
-	 * systems which will not be able to output audio via HDMI without
-	 * a BIOS workaround.
-	 */
-	{"Linux-Lenovo-NV-HDMI-Audio", true},
 	/*
 	 * Linux-HPI-Hybrid-Graphics is used by BIOS to enable dGPU to
 	 * output video directly to external monitors on HP Inc. mobile
-- 
2.34.1



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