From patchwork Mon Jul 12 06:05:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 475790 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2384CC11F81 for ; Mon, 12 Jul 2021 07:10:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C836613CF for ; Mon, 12 Jul 2021 07:10:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241218AbhGLHNQ (ORCPT ); Mon, 12 Jul 2021 03:13:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:41984 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243737AbhGLHIv (ORCPT ); Mon, 12 Jul 2021 03:08:51 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id CE34F611BF; Mon, 12 Jul 2021 07:04:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626073495; bh=Y4dQMYFhm95GjcowETDtuXSFX9tZyDZ2F+uM++JTHrw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aCcw5k9mj9RLBICQcLtZpXGtkaVt9NvHK57SbtZpxEfMGSsqpVzDWTngWalcCP1iR EaGDF4r1jI3aKVpZkaALcadsWq38ct30XFwmpbnwdeOQNd8JE2P6LWqvkkzGDL8Gcz QVj0p4X1MCNlD449Gx70sIEDiSpuXUO5ouGhRtn4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zoltan Tamas Vajda , Jiri Kosina , Sasha Levin Subject: [PATCH 5.12 219/700] HID: hid-input: add Surface Go battery quirk Date: Mon, 12 Jul 2021 08:05:02 +0200 Message-Id: <20210712060957.835277227@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060924.797321836@linuxfoundation.org> References: <20210712060924.797321836@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Zoltan Tamas Vajda [ Upstream commit b5539722eb832441f309642fe5102cc3536f92b8 ] The Elantech touchscreen/digitizer in the Surface Go mistakenly reports having a battery. This results in a low battery message every time you try to use the pen. This patch adds a quirk to ignore the non-existent battery and gets rid of the false low battery messages. Signed-off-by: Zoltan Tamas Vajda Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-input.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 03978111d944..06168f485722 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -397,6 +397,7 @@ #define USB_DEVICE_ID_HP_X2_10_COVER 0x0755 #define I2C_DEVICE_ID_HP_SPECTRE_X360_15 0x2817 #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706 +#define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A #define USB_VENDOR_ID_ELECOM 0x056e #define USB_DEVICE_ID_ELECOM_BM084 0x0061 diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index e982d8173c9c..bf5e728258c1 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -326,6 +326,8 @@ static const struct hid_device_id hid_battery_quirks[] = { HID_BATTERY_QUIRK_IGNORE }, { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15), HID_BATTERY_QUIRK_IGNORE }, + { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN), + HID_BATTERY_QUIRK_IGNORE }, {} };