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@xxxxxxxx Link: https://bugzilla.kernel.org/show_bug.cgi?id=216347 Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> --- v1->v2 * Only run on AMD systems (PSC mode) drivers/platform/x86/thinkpad_acpi.c | 7 +++---- 1 file 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; } -- 2.34.1
