diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2022-08-19 21:01:00 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-08-26 13:56:12 +0300 |
| commit | 343b62048ba4cec6b8b890092bcc200e1eb83424 (patch) | |
| tree | 869b4062c5989f5c9dbcad3dc3df699a61eafbed /drivers/platform | |
| parent | ee653d2d8f7c935a00f01a7654d889e8ce55b00e (diff) | |
| download | linux-343b62048ba4cec6b8b890092bcc200e1eb83424.tar.xz | |
platform/x86: thinkpad_acpi: Explicitly set to balanced mode on startup
It was observed that on a Thinkpad T14 Gen1 (AMD) that the platform
profile is starting up in 'low-power' mode after refreshing what the
firmware had. This is most likely a firmware bug, but as a harmless
workaround set the default profile to 'balanced' at thinkpad_acpi startup.
Reported-by: madcatx@atlas.cz
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216347
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220819180101.6383-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 22d4e8633e30..2dbb9fc011a7 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -10592,10 +10592,9 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) /* Ensure initial values are correct */ dytc_profile_refresh(); - /* Set AMT correctly now we know current profile */ - if ((dytc_capabilities & BIT(DYTC_FC_PSC)) && - (dytc_capabilities & BIT(DYTC_FC_AMT))) - dytc_control_amt(dytc_current_profile == PLATFORM_PROFILE_BALANCED); + /* Workaround for https://bugzilla.kernel.org/show_bug.cgi?id=216347 */ + if (dytc_capabilities & BIT(DYTC_FC_PSC)) + dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED); return 0; } |