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

[Mario Limonciello]

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@xxxxxx>
Tested-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Reviewed-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
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