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ec/dasharo/ec: Add DTT power and battery participants

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Add DTT Power and Battery participants. These are used by DTT drivers to
more efficiently split power between SoC and dGPU and determine their
power limits.

Change-Id: I1e215366a79c0dd0f8a5d54c33fc718ba6b1302b
Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86820
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Sumeet R.P. <sumeet4linux@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Alicja Michalska <ahplka19@gmail.com>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
This commit is contained in:
Michał Kopeć 2025-03-11 17:40:55 +01:00 • committed by Matt DeVillier
commit 581af94115
3 changed files with 60 additions and 1 deletions
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55
src/ec/dasharo/ec/acpi/dtt.asl Normal file
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@ -0,0 +1,55 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <soc/dptf.h>
Device (TPWR)
{
Name (_HID, DPTF_TPWR_DEVICE)
Name (_UID, "TPWR")
Name (_STR, Unicode("Intel DTT Power Participant"))
Method (_STA, 0, NotSerialized)
{
Return (0x0F)
}
Name (PTYP, 0x11) // Device is a platform power device
Method (PSRC, 0) // Power source
{
Return (^^AC.ACFG)
}
Method (ARTG, 0) // Adapter rating
{
If (^^PCI0.LPCB.EC0.ECOK)
{
Return (^^PCI0.LPCB.EC0.APWR)
}
Else
{
Return (0)
}
}
Method (PBOK, 1) // Power Boss OK
{
// Notify EC to de-assert PROCHOT#
// Required by DTT, but N/A on this hardware, PROCHOT#
// is de-asserted by board logic upon AC plug-in
}
}
Device (TBAT)
{
Name (_HID, DPTF_BAT1_DEVICE)
Name (_STR, Unicode("Intel DTT Battery Participant"))
Method (_STA, 0, NotSerialized)
{
Return (^^BAT0._STA)
}
Name (PTYP, 0x0c) // Device is a platform battery device
Name (CTYP, 0x02) // Hybrid Power Boost architecture
}

3
src/ec/dasharo/ec/acpi/ec.asl
View file

@ -4,9 +4,10 @@ Scope (\_SB) {
#include "ac.asl"
#include "battery.asl"
#include "buttons.asl"
#include "dasharo.asl"
#include "dtt.asl"
#include "hid.asl"
#include "lid.asl"
#include "dasharo.asl"
}
Device (\_SB.PCI0.LPCB.EC0)

3
src/ec/dasharo/ec/acpi/ec_ram.asl
View file

@ -42,6 +42,9 @@ Field (ERAM, ByteAcc, Lock, Preserve)
DUT2, 8, // Fan 2 duty
RPM1, 16, // Fan 1 RPM
RPM2, 16, // Fan 2 RPM
Offset (0xD4),
GPUD, 8, // GPU D-notify level
APWR, 32, // AC adapter power
Offset (0xD9),
AIRP, 8, // Airplane mode LED
WINF, 8, // Enable ACPI brightness controls