From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f175.google.com (mail-qt1-f175.google.com [209.85.160.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C27521A459 for ; Tue, 16 Jun 2026 14:35:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.175 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781620518; cv=none; b=acwzcIO7g/xt9toCHgqavDcUpgz53wwfAt6l7+RUNeI9yMI1cL/9jh3gjLk490P0YfiMAPQKLQ1TQW8ULkCMgJGYyF+g7o8XcY5vdqoY5xugsbyZy0vWzVVa2VzKjh80kcAZcqMAVRcje23kRnTDn0g4WarCpzDsv1I1fOv3Myg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781620518; c=relaxed/simple; bh=Zg4+zP0wTV80TxJ/Lm/sbGlz00er6sci0TVfyPMO8Zc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AvpukdO72HZjjAZikdkDTONJOGagf/bzPo/sY4YMyWc8lvvCELdcSoE1YmAgbIejLR96ThPc6Z4Rfnm2/IPkZlWfFrG7WGpYaNxP6VKj1jCHEpSiEdbRdiz+wp18tbI5bmo9TVbUKm23NepMD8bkU5Lsy7+exrotJ/QsTqL15wY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=kw70EIPN; arc=none smtp.client-ip=209.85.160.175 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kw70EIPN" Received: by mail-qt1-f175.google.com with SMTP id d75a77b69052e-51775f2473aso35292281cf.0 for ; Tue, 16 Jun 2026 07:35:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781620516; x=1782225316; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=F8r5xr/NmciIo7ORHJ3QXFMLP6g3t6oGjq0toSBNYQM=; b=kw70EIPNnp50W77f36WF0qrpBBWSdufbsuCTcvGTh0nr7qP4kPu7k9Bn7uWPV1NAZJ 1BvXDszMGJeSJoqiIMsWTtV0feqNraaOu8QWzYYnNXBRLYiWDY6gZ6Tg16pTbCue6Y8k ZGuMG4Z7M5d3Lpr6aGyGQtuxlQVx8CpgXo2ZwNsr1hB+s/ZAi+LglomhXC+hhpUOeTtz RliMwpxI3ROFrMfSZ7Rkn2OWgK26bAQmvQ60zxXYIOEPa1E5Kz/cUc+nKDazKqkKcZMY iUvxQqoiT/lTisFcMFjsvQHpN1o7LgF62EnEEZGjeg7D2rcf+XGQA2MQNqfQ4UZdodPE lUkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781620516; x=1782225316; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=F8r5xr/NmciIo7ORHJ3QXFMLP6g3t6oGjq0toSBNYQM=; b=XFCwsU0hQfMNq9U4M+pzb0l3OesUWBHswTwuMhOUux57JjP2uXgzbuieMNPP4k3xBH bOuM0mePybU+xmVAT4bpN1WHBl8nr5QRI9B4uVTOujDCdWu9uw7kWlQdp67RocexmRok bbWGcb9H/ieYZs/DKuJzoOB/2/USDHslmODpnXVuzAMAJRM9IzNoivRBqH20TPnaLjui T+fcmCqgZ/qSkLMdANGU8p2tXUdPS6PBPs+NxDRMPpUM5gZcKHVUUINt50yHy6Z2qM06 6/lR/MbtnPfmHZc1H77bVwtzO4Qw+Zgb36suoV3dpXvZDftw3t4RJ7JspRPl+Sw/Y9cX G3Gg== X-Forwarded-Encrypted: i=1; AFNElJ8VjIG2RRWAyNjZku/dAjqtLyNxJsnwWDBq1R1pGuzTDKghc0SsDCxJbNPj4e6MM4EQDT78XO5MZrACTF3qT6cgrKR+@vger.kernel.org X-Gm-Message-State: AOJu0Yz76B1FiivvCTB4OwyjV3e1R2Q5Y95xzgrJo9sdtTH70Bax0L1Y MnVfDOHXSJ96pSem78NXZcY5HsMiZoZC+7D0QNx/NlYxHv5wb1i6KqU8Z3iH5tCV X-Gm-Gg: Acq92OHLhrq9F4PCNdYXF0mZCrmbRfNwo08A8FWqwLLp9PifcHtRq3IaFYiD9QJS8n5 oKGyHi75EMjhWVsyH0f382Ui9VbGW57Vxo1it1v+AFZ2donoF+o8TcjSllZMqCjSrU1w95UFSxi kVa+t1BNdsCneFLwYWN75CeSLOQygJ3zm/ExCShFcRYwtzTtZKcEfkkPWdJXctdLR4vtzxDUWO8 grhwI5Qx0xkOcGgehiQEf9t7x9rAYIJiMFYBdt9zjggWkp/R4aJwpvzmylGeMBjYdEyu9gOYEbW 3N+9MZoTNINTMWNAxKXiiQVtZXz4yULffXtB34qFy69uMZ82Y/Gt3m9qhJE4Vb/REVLu/ef6Ikj t3TJXs+UVazbteE1MqALWPabZOvKKpyUCE1VO7nrJT1ctmlO5y7S4lnwuaVntTqPTuh997wfIbW LEoXPcvBi+pbjDg5cQA4kDr62dkgmBKNMVbVQijDQrEUbFAROG+x9bof/S3GA+R/YUHwnS X-Received: by 2002:a05:622a:992:b0:517:9648:f71f with SMTP id d75a77b69052e-517fe4f0d5bmr285002531cf.45.1781620515541; Tue, 16 Jun 2026 07:35:15 -0700 (PDT) Received: from fedora (pool-100-11-178-145.phlapa.fios.verizon.net. [100.11.178.145]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-517fb7a3c4asm141855521cf.14.2026.06.16.07.35.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jun 2026 07:35:15 -0700 (PDT) From: Dave Carey To: W_Armin@gmx.de, platform-driver-x86@vger.kernel.org Cc: ilpo.jarvinen@linux.intel.com, hansg@kernel.org, Dave Carey , Hans de Goede Subject: [PATCH v9 1/2] platform/x86/lenovo: lenovo-ymc: Suppress probe on Yoga Book 9 14IAH10 Date: Tue, 16 Jun 2026 10:35:07 -0400 Message-ID: <20260616143508.124122-2-carvsdriver@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260616143508.124122-1-carvsdriver@gmail.com> References: <20260610155340.342949-1-carvsdriver@gmail.com> <20260616143508.124122-1-carvsdriver@gmail.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The Yoga Book 9 14IAH10 (DMI product name "83KJ") has a dedicated yb9-kbdock WMI driver that registers an input device reporting SW_TABLET_MODE to track the detachable Bluetooth keyboard. lenovo-ymc also loads on this machine and creates an input node with the SW_TABLET_MODE capability bit set. For input switches, the presence of the capability bit has semantic meaning: userspace (e.g. GNOME) reads the switch state at startup from every node advertising the capability and does not expect more than one such node. Add a DMI match for the Yoga Book 9 14IAH10 to probe() so that lenovo-ymc returns -ENODEV on this hardware, leaving yb9-kbdock as the sole SW_TABLET_MODE source. The ymc_ec_trigger EC write, the only other action taken in response to a YMC event, is guarded by a separate DMI table that excludes this machine; no other functionality is affected. Reviewed-by: Hans de Goede Signed-off-by: Dave Carey --- drivers/platform/x86/lenovo/ymc.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/platform/x86/lenovo/ymc.c b/drivers/platform/x86/lenovo/ymc.c --- a/drivers/platform/x86/lenovo/ymc.c +++ b/drivers/platform/x86/lenovo/ymc.c @@ -23,7 +23,23 @@ module_param(force, bool, 0444); static bool force; module_param(force, bool, 0444); MODULE_PARM_DESC(force, "Force loading on boards without a convertible DMI chassis-type"); +static const struct dmi_system_id lenovo_ymc_nosupport_dmi_table[] = { + { + /* + * Yoga Book 9 14IAH10: SW_TABLET_MODE is reported by the + * yb9-kbdock driver. Suppress lenovo-ymc on this machine to + * avoid userspace seeing two input nodes that both advertise + * the SW_TABLET_MODE capability. + */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "83KJ"), + }, + }, + { } +}; + static const struct dmi_system_id allowed_chasis_types_dmi_table[] = { { .matches = { @@ -100,7 +116,10 @@ static int lenovo_ymc_probe(struct wmi_device *wdev, const void *ctx) struct lenovo_ymc_private *priv; struct input_dev *input_dev; int err; + if (dmi_check_system(lenovo_ymc_nosupport_dmi_table)) + return -ENODEV; + if (!dmi_check_system(allowed_chasis_types_dmi_table)) { if (force) dev_info(&wdev->dev, "Force loading Lenovo YMC support\n"); -- 2.54.0