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acpi: platform_profile - Add max-power profile option 

Some devices, namely Lenovo Legion devices, have an "extreme" mode where
power draw is at the maximum limit of the cooling hardware. Add a new
"max-power" platform profile to properly reflect this operating mode.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://patch.msgid.link/20251127151605.1018026-2-derekjohn.clark@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
pull/1354/merge
Derek J. Clark 2025-11-27 07:16:03 -08:00 committed by Ilpo Järvinen
parent 0b39ce8f71
commit 5aefbf5b68
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
3 changed files with 8 additions and 2 deletions
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2
Documentation/ABI/testing/sysfs-class-platform-profile
View File

@ -23,6 +23,8 @@ Description: This file contains a space-separated list of profiles supported
power consumption with a slight bias
towards performance
performance High performance operation
max-power Higher performance operation that may exceed
internal battery draw limits when on AC power
custom Driver defined custom profile
==================== ========================================

7
drivers/acpi/platform_profile.c
View File

@ -37,6 +37,7 @@ static const char * const profile_names[] = {
[PLATFORM_PROFILE_BALANCED] = "balanced",
[PLATFORM_PROFILE_BALANCED_PERFORMANCE] = "balanced-performance",
[PLATFORM_PROFILE_PERFORMANCE] = "performance",
[PLATFORM_PROFILE_MAX_POWER] = "max-power",
[PLATFORM_PROFILE_CUSTOM] = "custom",
};
static_assert(ARRAY_SIZE(profile_names) == PLATFORM_PROFILE_LAST);
@ -506,7 +507,8 @@ int platform_profile_cycle(void)
if (err)
return err;
if (profile == PLATFORM_PROFILE_CUSTOM ||
if (profile == PLATFORM_PROFILE_MAX_POWER ||
profile == PLATFORM_PROFILE_CUSTOM ||
profile == PLATFORM_PROFILE_LAST)
return -EINVAL;
@ -515,7 +517,8 @@ int platform_profile_cycle(void)
if (err)
return err;
/* never iterate into a custom if all drivers supported it */
/* never iterate into a custom or max power if all drivers supported it */
clear_bit(PLATFORM_PROFILE_MAX_POWER, data.aggregate);
clear_bit(PLATFORM_PROFILE_CUSTOM, data.aggregate);
next = find_next_bit_wrap(data.aggregate,

1
include/linux/platform_profile.h
View File

@ -24,6 +24,7 @@ enum platform_profile_option {
PLATFORM_PROFILE_BALANCED,
PLATFORM_PROFILE_BALANCED_PERFORMANCE,
PLATFORM_PROFILE_PERFORMANCE,
PLATFORM_PROFILE_MAX_POWER,
PLATFORM_PROFILE_CUSTOM,
PLATFORM_PROFILE_LAST, /*must always be last */
};