From: "Jeremy Linton" <jeremy.linton@arm.com>
To: devel@edk2.groups.io
Cc: leif@nuviainc.com, pete@akeo.ie, awarkentin@vmware.com,
ard.biesheuvel@arm.com, Jeremy Linton <jeremy.linton@arm.com>
Subject: [PATCH] Platform/RaspberryPi4: Correct thermal offset
Date: Wed, 9 Sep 2020 18:11:00 -0500 [thread overview]
Message-ID: <20200909231100.213015-1-jeremy.linton@arm.com> (raw)
The current mainline DT indicates that the thermal offset
on the rpi is 410040 rather than the 419949 being used.
This means our temp calculation is offset nearly 10C higher
when running in ACPI mode vs DT.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
---
Platform/RaspberryPi/AcpiTables/Dsdt.asl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Platform/RaspberryPi/AcpiTables/Dsdt.asl b/Platform/RaspberryPi/AcpiTables/Dsdt.asl
index 2b9e8211cf..d116f965e1 100644
--- a/Platform/RaspberryPi/AcpiTables/Dsdt.asl
+++ b/Platform/RaspberryPi/AcpiTables/Dsdt.asl
@@ -269,7 +269,7 @@ DefinitionBlock ("Dsdt.aml", "DSDT", 5, "RPIFDN", "RPI", 2)
Field (TEMS, DWordAcc, NoLock, Preserve) {
TMPS, 32
}
- return (((419949 - ((TMPS & 0x3ff) * 487)) / 100) + 2732);
+ return (((410040 - ((TMPS & 0x3ff) * 487)) / 100) + 2732);
}
Method (_SCP, 3) { } // receive cooling policy from OS
--
2.13.7
next reply other threads:[~2020-09-09 23:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 23:11 Jeremy Linton [this message]
2020-09-11 18:13 ` [PATCH] Platform/RaspberryPi4: Correct thermal offset Pete Batard
2020-09-11 19:48 ` Jeremy Linton
2020-10-22 13:45 ` Ard Biesheuvel
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