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| author |   Mario Limonciello <mario.limonciello@amd.com> | 2022-08-19 13:01:00 -0500 |
|---|---|---|
| committer |   Hans de Goede <hdegoede@redhat.com> | 2022-08-26 12:53:32 +0200 |
| commit | 23657a437ea2fbccc715fce2dac74e3c923540cf (patch) | |
| tree | 2b0dcb4fffa44c821f51268c8a9b4239e26e9736 | |
| parent | platform/x86: move from strlcpy with unused retval to strscpy (diff) | |
| download | linux-dev-23657a437ea2fbccc715fce2dac74e3c923540cf.tar.xz linux-dev-23657a437ea2fbccc715fce2dac74e3c923540cf.zip | |
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>
| -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 8dad0428a83c..8fbe21ebcc52 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; } |