From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.gmx.net (mout.gmx.net [212.227.17.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 60E4E4963C8; Tue, 1 Sep 2026 18:18:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.17.22 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788286736; cv=none; b=nKF4Xl6sgx2w2TxU6fNTpIoHnHiR+/G0bCPHB/9nsmr/kbjV1JN8u3Z5drf3baDXJU+wBllv/JjDZGEhlWRng06xG0l5xDqEsSfX1/wrt9RDLfgmzqUm1gliXRLloWh3pU5HN5AHscMNOG/ECb41UH4/JTeMY1jKRmpywh3rbiw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788286736; c=relaxed/simple; bh=zwO9XqbT0TZxY3t1rkN6NEAPNkiE7ic9fnQx1jSs8Gc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; 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References:MIME-Version:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=CG+GBDcQHGx80GE2ZS+SbYYpImfIG2yyatjRCQJ7Jcyn+QvU1/Bq1xDPhYGuLI0B If1ISPgHg19NeVB8LrMJiXiiQ8vHdVJySgGejoXy+u0SuG47r98seIARegLkgbP/x RW9mTII4NEMS79CcylwwfnDi+VII80bItDFDTuqbf2CY/1GlXLJKscsp6+e593EEP IqXT90WGWwfF/WP8P05d6JF/lT0QvU61W2A1EC42CurwfZg7Pm87p6bCuJn867vU3 QMV5uCUpBrwZmPOgLsGh/QvGFivpeqosF+cPNEi1+B8bFSxMqLaLwNHjuPL8eboWI JkHsy4jYJC1LSa72/g== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from client.hidden.invalid by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MUowb-1xRh4H1DHN-00Ys5z; Tue, 01 Sep 2026 20:18:52 +0200 From: Armin Wolf To: pali@kernel.org Cc: linux@roeck-us.net, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, pp12313124124@gmail.com Subject: [PATCH 2/2] hwmon: (dell-smm) Add Latitude 5420 to fan control whitelist Date: Tue, 1 Sep 2026 20:18:49 +0200 Message-Id: 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5RSo3wqs2e+7qajisFKYiFOKhS7MFnCN8jGA2a0+jw9Wv78W86DFT2PTANJydZ+8RaKqTH9g5 O8I8exvjpXDJuA5TbmKdO9vwV3iiH9jZkZIzdBhkucZ+maVKfeOUbcsiUropF86nKzeX0Fta+ DbRd0+Q4EnljCGkeF0BKa6F+5zpL3xKsM9qJPQ8h8cwiam/dQTA7UVvCloFilYTqQeUmOGaSA gzuJv+fPyP6JCZuxXTYOQDKeHeIsIMVeb/RzQTQwVYJMkriJ9X8qvNwRW5ZFwaYq45roOxZ+0 pEvtFz27n5KUXIAdqZiJxInTV8C9j18NWFyYlRdhGjmd3XLYuY9oUaR1BYogNHKODwXOox3Hh T1cqAOK9La17t/E6a4aU8OKpH1x9JxkPc/p8BiSZWaTz6HkSfgKnhAZU5HBgoznOzWUYYEqvb +qYIH377OSmicwEJzqhx3b1FoWh4TR9nYZBdinYX+VoqUMFFOp2A2c3OaAtnVfj8Nh6b2irX7 Li/1DcNd2jGSMRemYxGe6ySLTAM16+dU+4QHAWfdLanOjUboZ1drYBxPpTIHSRLTLFkg9AbBG Tijx2avBkFbZ12AwA3Ji7fEeUWQmDR5M7FMk1hNLNcrUCpchCL36ULb1PLoWT87/xhTzhZPYu FMScTBZR/oVjaXNnNU0ah4ab8S2NTl6MONNv6z2AunAnN6V7BxckWpq5Dx9nF/PybPQRFFk/e WKPvAYBIrnrRyrWq/fnp4a/aQnVmR+35MbcgVrq0Yk70DvxSoAMecJ+H2vYPIVW4qOQ9cUdgM w3vCIhk3rHk0x+G0DMwBaQFHoDng+Rhvsg3arupSWlSnTZlVUGeEpQ== A user reported that the Dell Latitude 5420 needs to be whitelisted for the special SMM calls necessary for globally enabling/disabling BIOS fan control. Reported-by: pp12313124124@gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=3D221935 Signed-off-by: Armin Wolf =2D-- drivers/hwmon/dell-smm-hwmon.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon= .c index a3aa398a9f8f..7ed94a3db621 100644 =2D-- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -1543,6 +1543,14 @@ static const struct dmi_system_id i8k_whitelist_fan= _control[] __initconst =3D { }, .driver_data =3D (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3], }, + { + .ident =3D "Dell Latitude 5420", + .matches =3D { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 5420"), + }, + .driver_data =3D (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3], + }, { .ident =3D "Dell Latitude 5480", .matches =3D { =2D-=20 2.39.5