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From:   Mario Limonciello <mario.limonciello@amd.com>
To:     <markpearson@lenovo.com>,
        Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
        Hans de Goede <hdegoede@redhat.com>,
        Mark Gross <markgross@kernel.org>
CC:     Mario Limonciello <mario.limonciello@amd.com>, <madcatx@atlas.cz>,
        <ibm-acpi-devel@lists.sourceforge.net>,
        <platform-driver-x86@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
Subject: [PATCH] platform/x86: thinkpad_acpi: Explicitly set to balanced mode on startup
Date:   Fri, 19 Aug 2022 09:01:42 -0500
Message-ID: <20220819140142.4925-1-mario.limonciello@amd.com>
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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-and-tested-by: madcatx@atlas.cz
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216347
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 22d4e8633e30..e7e86c0b9ad7 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10590,12 +10590,7 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
 		return -ENODEV;
 
 	/* 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);
+	dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
 
 	return 0;
 }
-- 
2.34.1