From patchwork Fri Jan 14 17:16:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Werner Sembach X-Patchwork-Id: 12713862 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1788FC433F5 for ; Fri, 14 Jan 2022 17:16:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243824AbiANRQ3 (ORCPT ); Fri, 14 Jan 2022 12:16:29 -0500 Received: from srv6.fidu.org ([159.69.62.71]:47374 "EHLO srv6.fidu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235457AbiANRQ0 (ORCPT ); Fri, 14 Jan 2022 12:16:26 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by srv6.fidu.org (Postfix) with ESMTP id E7FCFC800BB; Fri, 14 Jan 2022 18:16:23 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at srv6.fidu.org Received: from srv6.fidu.org ([127.0.0.1]) by localhost (srv6.fidu.org [127.0.0.1]) (amavisd-new, port 10026) with LMTP id LTsH0aBPcG80; Fri, 14 Jan 2022 18:16:23 +0100 (CET) Received: from wsembach-tuxedo.fritz.box (host-212-18-30-247.customer.m-online.net [212.18.30.247]) (Authenticated sender: wse@tuxedocomputers.com) by srv6.fidu.org (Postfix) with ESMTPA id 7F5C7C80094; Fri, 14 Jan 2022 18:16:23 +0100 (CET) From: Werner Sembach To: dmitry.torokhov@gmail.com, tiwai@suse.com, mpdesouza@suse.com, arnd@arndb.de, samuel@cavoj.net, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][RESEND] input/i8042: Add quirk table to disable aux port on Clevo NS70MU Date: Fri, 14 Jan 2022 18:16:23 +0100 Message-Id: <20220114171623.729343-1-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org At least one modern Clevo barebone has the touchpad connected both via PS/2 and i2c interface. This causes a race condition between the psmouse and i2c-hid driver. Since the full capability if the touchpad is available via the i2c interface and the device has no external PS/2 port, it is save to just ignore all ps2 mouses here to avoid this issue. The know affected device is the Clevo NS70MU. This patch add a new i8042_dmi_noaux_table with the dmi strings of the affected device of different revisions. The table is then evaluated like the other quirk tables in the i8042 driver. Signed-off-by: Werner Sembach Cc: stable@vger.kernel.org --- drivers/input/serio/i8042-x86ia64io.h | 42 +++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 148a7c5fd0e2..48ad6247a1a0 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -1013,6 +1013,45 @@ static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = { { } }; +static const struct dmi_system_id i8042_dmi_noaux_table[] __initconst = { + /* + * At least one modern Clevo barebone has the touchpad connected + * both via PS/2 and i2c interface. This causes a race condition + * between the psmouse and i2c-hid driver. Since the full + * capability if the touchpad is available via the i2c interface + * and the device has no external PS/2 port, it is save to just + * ignore all ps2 mouses here to avoid this issue. + * The know affected device is the + * TUXEDO InfinityBook S17 Gen6 / Clevo NS70MU which comes with + * one of the 4 different dmi string combinations below. + */ + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_MATCH(DMI_BOARD_NAME, "NS50MU"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_MATCH(DMI_BOARD_NAME, "NS50_70MU"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Notebook"), + DMI_MATCH(DMI_BOARD_NAME, "NS50MU"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Notebook"), + DMI_MATCH(DMI_BOARD_NAME, "NS50_70MU"), + }, + }, + { } +}; + #endif /* CONFIG_X86 */ #ifdef CONFIG_PNP @@ -1336,6 +1375,9 @@ static int __init i8042_platform_init(void) if (dmi_check_system(i8042_dmi_probe_defer_table)) i8042_probe_defer = true; + if (dmi_check_system(i8042_dmi_noaux_table)) + i8042_noaux = true; + /* * A20 was already enabled during early kernel init. But some buggy * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to