From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 0529DC31E45 for ; Thu, 13 Jun 2019 17:17:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CD5A82053B for ; Thu, 13 Jun 2019 17:17:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b5m+xNA8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729729AbfFMRRF (ORCPT ); Thu, 13 Jun 2019 13:17:05 -0400 Received: from mail-pl1-f194.google.com ([209.85.214.194]:46658 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725807AbfFLV1Z (ORCPT ); Wed, 12 Jun 2019 17:27:25 -0400 Received: by mail-pl1-f194.google.com with SMTP id e5so7144092pls.13; Wed, 12 Jun 2019 14:27:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=y+wv7iX7SMqE+W9hLG2VgA3zTP87AXC2cEtK/8C9IT8=; b=b5m+xNA8Efyi+r2WOXDP2kSW3aiv+dZt9eBtAIRennxzgY2X3R6YColvPxqu06SZRi rxgcZlXpRDI7HJOdhFF85t2GdKbVenHQmRdJRm9ZH/fsynL/axVRXmVbaWxxKFRwt2m3 jD1N+oEwZNgFrldWru6EI4uhMJLzZPMjfQ8mR1g8WtQHKQSspy95XIrCG+suvIs06Lje LXbdhsbh/D0u11MxwKsR4T8iINWGaCwCs+PLXp7sPYKFcI6ijgDBg/eiE/TNlIoYj+ek 3E+XGNy8URB1pqNwrxNeFrBaJPke+3K7fEZ4D9oyZO8LEUeGAjqPFxKIJtZQ31dsy/UG E98g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=y+wv7iX7SMqE+W9hLG2VgA3zTP87AXC2cEtK/8C9IT8=; b=lJzpnXQDYIv+6d4lzdiXob3iQZ43/DBsl3fRW8VqHHv2X06YVM0G7c9CvLIlrrpaAN LStIGorhcx31KJIIlJKsGKxhFgT3er275I/g3gqTMey8duvHuGXCbNTpQIYFpRFqvRPH EYeVbkPntBV1CWcUI0r5EQ7Cik1IV8Cv2UcVnLS6+TPrPvN1QcyxVXcRHfUoOoYbEB1H vQdu67fkmEgUh+ElI087snEcfpgFnMll1JO894bCpxf6QBZ+2q0JVuAdsVPM+NBaz5j4 5g1Kbj1S0lJlEFrSnvIBg9lrxUHsJMr2m6fL2T9WxFSYQfAw0msU9ZpJMGqWyQNPLJhR x13w== X-Gm-Message-State: APjAAAXOtwLayoFppv5m8WJ1mdel27aO7zHba6JZD91xgF2lzDhp8WqV BL940wvfwf6at8s6rh4yfAo= X-Google-Smtp-Source: APXvYqyk+af3ljb+IEPx5dom264fLKvAzHu11B+zZ0MFoNlDkLVB49AGCOThA8e2flaZ57ISyJF88A== X-Received: by 2002:a17:902:b497:: with SMTP id y23mr59306507plr.309.1560374844699; Wed, 12 Jun 2019 14:27:24 -0700 (PDT) Received: from aw-bldr-10.qualcomm.com (i-global254.qualcomm.com. [199.106.103.254]) by smtp.gmail.com with ESMTPSA id y133sm505346pfb.28.2019.06.12.14.27.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Jun 2019 14:27:24 -0700 (PDT) From: Jeffrey Hugo To: benjamin.tissoires@redhat.com, dmitry.torokhov@gmail.com, jikos@kernel.org Cc: hdegoede@redhat.com, bjorn.andersson@linaro.org, agross@kernel.org, lee.jones@linaro.org, xnox@ubuntu.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Jeffrey Hugo Subject: [PATCH v6 2/5] HID: quirks: Refactor ELAN 400 and 401 handling Date: Wed, 12 Jun 2019 14:27:21 -0700 Message-Id: <20190612212721.32195-1-jeffrey.l.hugo@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190612212604.32089-1-jeffrey.l.hugo@gmail.com> References: <20190612212604.32089-1-jeffrey.l.hugo@gmail.com> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org There needs to be coordination between hid-quirks and the elan_i2c driver about which devices are handled by what drivers. Currently, both use whitelists, which results in valid devices being unhandled by default, when they should not be rejected by hid-quirks. This is quickly becoming an issue. Since elan_i2c has a maintained whitelist of what devices it will handle, which is now in a header file that hid-quirks can access, use that to implement a blacklist in hid-quirks so that only the devices that need to be handled by elan_i2c get rejected by hid-quirks, and everything else is handled by default. Suggested-by: Benjamin Tissoires Signed-off-by: Jeffrey Hugo --- drivers/hid/hid-quirks.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index e5ca6fe2ca57..bd81bb090222 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "hid-ids.h" @@ -914,6 +915,8 @@ static const struct hid_device_id hid_mouse_ignore_list[] = { bool hid_ignore(struct hid_device *hdev) { + int i; + if (hdev->quirks & HID_QUIRK_NO_IGNORE) return false; if (hdev->quirks & HID_QUIRK_IGNORE) @@ -978,18 +981,20 @@ bool hid_ignore(struct hid_device *hdev) break; case USB_VENDOR_ID_ELAN: /* - * Many Elan devices have a product id of 0x0401 and are handled - * by the elan_i2c input driver. But the ACPI HID ELAN0800 dev - * is not (and cannot be) handled by that driver -> - * Ignore all 0x0401 devs except for the ELAN0800 dev. + * Blacklist of everything that gets handled by the elan_i2c + * input driver. This avoids disabling valid touchpads and + * other ELAN devices. */ - if (hdev->product == 0x0401 && - strncmp(hdev->name, "ELAN0800", 8) != 0) - return true; - /* Same with product id 0x0400 */ - if (hdev->product == 0x0400 && - strncmp(hdev->name, "QTEC0001", 8) != 0) - return true; + if ((hdev->product == 0x0401 || hdev->product == 0x0400)) { + for (i = 0; strlen(elan_acpi_id[i].id); ++i) + if (!strncmp(hdev->name, elan_acpi_id[i].id, + strlen(elan_acpi_id[i].id))) + return true; + for (i = 0; strlen(elan_of_match[i].name); ++i) + if (!strncmp(hdev->name, elan_of_match[i].name, + strlen(elan_of_match[i].name))) + return true; + } break; } -- 2.17.1