[coreboot-gerrit] Patch set updated for coreboot: 8f7d289 baytrail: Add default _OSC method

Aaron Durbin (adurbin@google.com) gerrit at coreboot.org
Wed Apr 30 22:42:43 CEST 2014


Aaron Durbin (adurbin at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4939

-gerrit

commit 8f7d2897223159ad1f322cf679c2894c7f0f4476
Author: Duncan Laurie <dlaurie at chromium.org>
Date:   Mon Nov 4 17:28:19 2013 -0800

    baytrail: Add default _OSC method
    
    This is needed to let the kernel know it can control everything
    and not to disable features.
    
    BUG=chrome-os-partner:23505
    BRANCH=rambi
    TEST=build and boot on rambi
    
    Change-Id: I40ff15bb931a9be7c31509ec84489083b5af0a82
    Signed-off-by: Duncan Laurie <dlaurie at chromium.org>
    Reviewed-on: https://chromium-review.googlesource.com/175629
    Reviewed-by: Aaron Durbin <adurbin at chromium.org>
    Signed-off-by: Aaron Durbin <adurbin at chromium.org>
---
 src/soc/intel/baytrail/acpi/southcluster.asl | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl
index af5dcfe..87b5b6e 100644
--- a/src/soc/intel/baytrail/acpi/southcluster.asl
+++ b/src/soc/intel/baytrail/acpi/southcluster.asl
@@ -193,3 +193,20 @@ Device (PDRC)
 		Return(PDRS)
 	}
 }
+
+Method (_OSC, 4)
+{
+	/* Check for proper GUID */
+	If (LEqual (Arg0, ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766")))
+	{
+		/* Let OS control everything */
+		Return (Arg3)
+	}
+	Else
+	{
+		/* Unrecognized UUID */
+		CreateDWordField (Arg3, 0, CDW1)
+		Or (CDW1, 4, CDW1)
+		Return (Arg3)
+	}
+}



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