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platform/x86: asus-armoury: Add power limits for ROG Strix SCAR 16 (G635LX)

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Add the AC and DC power limit definitions for the ASUS ROG Strix SCAR 16
2025 (G635LX), enabling the nv_tgp, nv_dynamic_boost and ppt_pl*_* tuning
attributes on this model. Without an entry in the power_limits table the
attributes are not exposed (has_valid_limit() returns false) and the
firmware power knobs cannot be controlled.

The G635LX ships an NVIDIA RTX 5090 Laptop GPU (150 W base TGP + 25 W
Dynamic Boost = 175 W max, per the ASUS specification) and an Intel Core
Ultra 9 275HX, matching the ROG Strix SCAR 18 (G835LW). The limits are
therefore taken from the G835LW sibling entry and the ASUS specification
rather than dumped from this board's firmware.

Testing on a G635LX confirmed the attributes populate with this entry and
that writing nv_dynamic_boost changes the measured GPU power draw
(~151 W at minimum, ~169 W at maximum during inference), i.e. the limits
reach firmware.

Signed-off-by: Avi Fenesh <aviarchi1994@gmail.com>
Link: https://patch.msgid.link/20260621130204.103566-1-aviarchi1994@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Avi Fenesh 2026-06-21 16:02:04 +03:00 committed by Ilpo Järvinen
parent c036e9e564
commit c18eb12447
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GPG Key ID: 59AC4F6153E5CE31
1 changed files with 29 additions and 0 deletions
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29
drivers/platform/x86/asus-armoury.h
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@ -2111,6 +2111,35 @@ static const struct dmi_system_id power_limits[] = {
.requires_fan_curve = true,
},
},
{
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "G635LX"),
},
.driver_data = &(struct power_data) {
.ac_data = &(struct power_limits) {
.ppt_pl1_spl_min = 28,
.ppt_pl1_spl_def = 140,
.ppt_pl1_spl_max = 175,
.ppt_pl2_sppt_min = 28,
.ppt_pl2_sppt_max = 175,
.nv_dynamic_boost_min = 5,
.nv_dynamic_boost_max = 25,
.nv_temp_target_min = 75,
.nv_temp_target_max = 87,
.nv_tgp_min = 80,
.nv_tgp_max = 150,
},
.dc_data = &(struct power_limits) {
.ppt_pl1_spl_min = 25,
.ppt_pl1_spl_max = 55,
.ppt_pl2_sppt_min = 25,
.ppt_pl2_sppt_max = 70,
.nv_temp_target_min = 75,
.nv_temp_target_max = 87,
},
.requires_fan_curve = true,
},
},
{
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "G713PV"),