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| author | Angel Pons <th3fanbus@gmail.com> | 2021-04-19 20:43:17 +0200 |
|---|---|---|
| committer | Angel Pons <th3fanbus@gmail.com> | 2021-04-21 14:22:19 +0000 |
| commit | a590852313359d31ae1cfb0093daf4fe3610262a (patch) | |
| tree | dc9dad0984006c15723389c5c1fe82f909eaa353 /src | |
| parent | 5d13e7fdcd11f2c78ae2518c33b404932e4650c3 (diff) | |
| download | coreboot-a590852313359d31ae1cfb0093daf4fe3610262a.tar.xz | |
soc/intel/broadwell/pch/acpi: Fix LPD0 and LPD3 methods
When using references to a FieldUnit, DeRefOf is not used when storing a
value into the referenced FieldUnit, only when reading its value.
Tested on out-of-tree Compal LA-A992P, Linux 5.11.15-arch1-2 no longer
spews errors like these in dmesg:
ACPI Error: Needed type [Reference], found [Integer] 000000006cbcc5d8 (20201113/exresop-66)
ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [And] (20201113/dswexec-431)
ACPI Error: Aborting method \_SB.PCI0.LPD0 due to previous error (AE_AML_OPERAND_TYPE) (20201113/psparse-529)
ACPI Error: Aborting method \_SB.PCI0.I2C0._PS0 due to previous error (AE_AML_OPERAND_TYPE) (20201113/psparse-529)
Change-Id: I60c40452f8b5bdbec76264b578957396de8676ea
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52519
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/broadwell/pch/acpi/serialio.asl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/soc/intel/broadwell/pch/acpi/serialio.asl b/src/soc/intel/broadwell/pch/acpi/serialio.asl index 2bacd2b0a3..183bca6d55 100644 --- a/src/soc/intel/broadwell/pch/acpi/serialio.asl +++ b/src/soc/intel/broadwell/pch/acpi/serialio.asl @@ -9,7 +9,7 @@ // Arg0 - Ref to offset 0x84 of device's PCI config space Method (LPD0, 1, Serialized) { - DeRefOf (Arg0) &= 0xFFFFFFFC + Arg0 = DeRefOf (Arg0) & 0xFFFFFFFC Local0 = DeRefOf (Arg0) // Read back after writing // Use Local0 to avoid iasl warning: Method Local is set but never used @@ -20,7 +20,7 @@ Method (LPD0, 1, Serialized) // Arg0 - Ref to offset 0x84 of device's PCI config space Method (LPD3, 1, Serialized) { - DeRefOf (Arg0) |= 0x3 + Arg0 = DeRefOf (Arg0) | 0x3 Local0 = DeRefOf (Arg0) // Read back after writing // Use Local0 to avoid iasl warning: Method Local is set but never used |