diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/picasso/acpi/cpu.asl | 29 | ||||
| -rw-r--r-- | src/soc/amd/picasso/acpi/sb_pci0_fch.asl | 11 |
2 files changed, 28 insertions, 12 deletions
diff --git a/src/soc/amd/picasso/acpi/cpu.asl b/src/soc/amd/picasso/acpi/cpu.asl index 41d5bf5324..8b61b8f921 100644 --- a/src/soc/amd/picasso/acpi/cpu.asl +++ b/src/soc/amd/picasso/acpi/cpu.asl @@ -1,8 +1,35 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -/* Required function by EC, Notify OS to re-read CPU tables */ +/* + * Wrapper method that calls ALIB function 1 to report current AC/DC state. + */ +Method (WAL1) +{ + /* Send ALIB Function 1 the AC/DC state */ + Local0 = Buffer (0x03) {} + CreateWordField (Local0, 0, F1SZ) + CreateByteField (Local0, 2, F1DA) + + /* First argument is size i.e. 3 bytes */ + F1SZ = 3 + + /* + * Second argument is power state i.e. AC or DC. + * ALIB expects AC = 0, DC = 1. + * PWRS reports AC = 1, DC = 0. + * + * Hence, need to invert the state of PWRS. + */ + F1DA = \PWRS ^ 1 + + Printf ("ALIB call: func 1 params %o", Local0) + \_SB.ALIB (1, Local0) +} + Method (PNOT) { + /* Report AC/DC state to ALIB using WAL1() */ + \WAL1 () } /* diff --git a/src/soc/amd/picasso/acpi/sb_pci0_fch.asl b/src/soc/amd/picasso/acpi/sb_pci0_fch.asl index 751c178762..27c46611b3 100644 --- a/src/soc/amd/picasso/acpi/sb_pci0_fch.asl +++ b/src/soc/amd/picasso/acpi/sb_pci0_fch.asl @@ -128,17 +128,6 @@ Method(_INI, 0, Serialized) { /* Determine the OS we're running on */ OSFL() - - /* Send ALIB Function 1 the AC/DC state */ - Name(F1BF, Buffer(0x03){}) - CreateWordField(F1BF, 0, F1SZ) - CreateByteField(F1BF, 2, F1DA) - - Store(3, F1SZ) - Store(\PWRS, F1DA) - - \_SB.ALIB(1, F1BF) - } /* End Method(_SB._INI) */ Method(OSFL, 0){ |