[PATCH v10 16/22] ACPI: platform_profile: Add concept of a "custom" profile

Mario Limonciello
2024-12-06T03:26:14Z

When two profile handlers don't agree on the current profile it's ambiguous
what to show to the legacy sysfs interface.

Add a "custom" profile string that userspace will be able to use the legacy
sysfs interface to distinguish this situation..

Additionally drivers can choose to use this to indicate that a user has
modified driver settings in a way that the platform profile advertised by
a driver is not accurate.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
v10:
* Update commit message
---
drivers/acpi/platform_profile.c | 1 +
include/linux/platform_profile.h | 1 +
2 files changed, 2 insertions(+)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index bdf69255ed9ca..54483269b8834 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -20,6 +20,7 @@ static const char * const profile_names[] = {
[PLATFORM_PROFILE_BALANCED] = "balanced",
[PLATFORM_PROFILE_BALANCED_PERFORMANCE] = "balanced-performance",
[PLATFORM_PROFILE_PERFORMANCE] = "performance",
+ [PLATFORM_PROFILE_CUSTOM] = "custom",
};
static_assert(ARRAY_SIZE(profile_names) == PLATFORM_PROFILE_LAST);

diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
index a888fd085c513..0682bb4c57e5d 100644
--- a/include/linux/platform_profile.h
+++ b/include/linux/platform_profile.h
@@ -23,6 +23,7 @@ enum platform_profile_option {
PLATFORM_PROFILE_BALANCED,
PLATFORM_PROFILE_BALANCED_PERFORMANCE,
PLATFORM_PROFILE_PERFORMANCE,
+ PLATFORM_PROFILE_CUSTOM,
PLATFORM_PROFILE_LAST, /*must always be last */
};

--
2.43.0