From patchwork Sat May 2 18:29:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 194241 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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS 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 8F9F9C3A5A9 for ; Sat, 2 May 2020 18:30:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6DBC620731 for ; Sat, 2 May 2020 18:30:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="LK69Wu4+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728588AbgEBSaG (ORCPT ); Sat, 2 May 2020 14:30:06 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:22204 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728573AbgEBSaE (ORCPT ); Sat, 2 May 2020 14:30:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588444203; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zcEcrCn5D0OhCHYjh6wHfqw4y+Glm2KA2NUo7TRLpVo=; b=LK69Wu4+EJh+k6IjkGRI9Rz02ejdLd23o9FZXmp1zHfHZ2zrFtnMvokZnFQbsYnQLGYie3 x9bclvu4PghFgXZkxSZgEUwsD5K7fLxMdI+MKYRVoR8XbbsMXYTWFnR6NObRfcfNtnW8g3 lhPmOmBo5DvHtZQsD0vF9sX1nktrbdo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-514-8YzLH5AWOl-R9M4Zaz63Gg-1; Sat, 02 May 2020 14:29:59 -0400 X-MC-Unique: 8YzLH5AWOl-R9M4Zaz63Gg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F0891100960F; Sat, 2 May 2020 18:29:57 +0000 (UTC) Received: from x1.localdomain.com (ovpn-112-4.ams2.redhat.com [10.36.112.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 30E5C600E5; Sat, 2 May 2020 18:29:55 +0000 (UTC) From: Hans de Goede To: Darren Hart , Andy Shevchenko , Mario Limonciello Cc: Hans de Goede , linux-acpi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] platform/x86: intel-vbtn: Use acpi_evaluate_integer() Date: Sat, 2 May 2020 20:29:47 +0200 Message-Id: <20200502182951.114231-2-hdegoede@redhat.com> In-Reply-To: <20200502182951.114231-1-hdegoede@redhat.com> References: <20200502182951.114231-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Use acpi_evaluate_integer() instead of open-coding it. This is a preparation patch for adding a intel_vbtn_has_switches() helper function. Fixes: de9647efeaa9 ("platform/x86: intel-vbtn: Only activate tablet mode switch on 2-in-1's") Signed-off-by: Hans de Goede --- drivers/platform/x86/intel-vbtn.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index b5880936d785..191894d648bb 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -119,28 +119,21 @@ static void detect_tablet_mode(struct platform_device *device) const char *chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev); acpi_handle handle = ACPI_HANDLE(&device->dev); - struct acpi_buffer vgbs_output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object *obj; + unsigned long long vgbs; acpi_status status; int m; if (!(chassis_type && strcmp(chassis_type, "31") == 0)) - goto out; + return; - status = acpi_evaluate_object(handle, "VGBS", NULL, &vgbs_output); + status = acpi_evaluate_integer(handle, "VGBS", NULL, &vgbs); if (ACPI_FAILURE(status)) - goto out; - - obj = vgbs_output.pointer; - if (!(obj && obj->type == ACPI_TYPE_INTEGER)) - goto out; + return; - m = !(obj->integer.value & TABLET_MODE_FLAG); + m = !(vgbs & TABLET_MODE_FLAG); input_report_switch(priv->input_dev, SW_TABLET_MODE, m); - m = (obj->integer.value & DOCK_MODE_FLAG) ? 1 : 0; + m = (vgbs & DOCK_MODE_FLAG) ? 1 : 0; input_report_switch(priv->input_dev, SW_DOCK, m); -out: - kfree(vgbs_output.pointer); } static int intel_vbtn_probe(struct platform_device *device) From patchwork Sat May 2 18:29:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 194240 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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS 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 983F4C3A5A9 for ; Sat, 2 May 2020 18:30:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7704D21556 for ; Sat, 2 May 2020 18:30:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="MRyBlAVG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728411AbgEBSaQ (ORCPT ); Sat, 2 May 2020 14:30:16 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:58068 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728439AbgEBSaN (ORCPT ); Sat, 2 May 2020 14:30:13 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588444212; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=letQVDOo3V2j1mmTVFw1o6et9y8zvcG1xCoXp2K/63E=; b=MRyBlAVGK/YYih7ATHHMsKIi3syCu1mctTE/o2Mx8K0+Cai3d5UhNU9twVaabJUZxSMgs3 Ye6Ibe8DChdpMEbTRfliZOgHaKivtAqFgmZvaQqL5tO+eYG+svaMScy4tPp7QRFLAXN+Ta Pr02RQBBl3M+4EtQQjizzVcN58usUVM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-152-ubq-5E0lNFWza9zgE-YR_w-1; Sat, 02 May 2020 14:30:08 -0400 X-MC-Unique: ubq-5E0lNFWza9zgE-YR_w-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 07EFE8005B7; Sat, 2 May 2020 18:30:07 +0000 (UTC) Received: from x1.localdomain.com (ovpn-112-4.ams2.redhat.com [10.36.112.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 82A30600E5; Sat, 2 May 2020 18:30:05 +0000 (UTC) From: Hans de Goede To: Darren Hart , Andy Shevchenko , Mario Limonciello Cc: Hans de Goede , linux-acpi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/5] platform/x86: intel-vbtn: Fix probe failure on devices with only switches Date: Sat, 2 May 2020 20:29:51 +0200 Message-Id: <20200502182951.114231-6-hdegoede@redhat.com> In-Reply-To: <20200502182951.114231-1-hdegoede@redhat.com> References: <20200502182951.114231-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On some devices the INT33D6 vbtn device is only used to report tablet-mode / docked status (switches) and there are no vbtn managed buttons. On these devices there is no VBDL object. Move the VBDL check to a intel_vbtn_has_buttons() helper and only exit from intel_vbtn_probe() with -ENODEV when there are both no buttons and no switches. Also only report the buttons being present to userspace if the has_buttons check has succeeded. Signed-off-by: Hans de Goede --- drivers/platform/x86/intel-vbtn.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index 4921fc15dc6c..4efc70b693a7 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -55,6 +55,7 @@ static const struct key_entry intel_vbtn_switchmap[] = { struct intel_vbtn_priv { struct key_entry keymap[KEYMAP_LEN]; struct input_dev *input_dev; + bool has_buttons; bool has_switches; bool wakeup_mode; }; @@ -64,7 +65,7 @@ static int intel_vbtn_input_setup(struct platform_device *device) struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev); int ret, keymap_len = 0; - if (true) { + if (priv->has_buttons) { memcpy(&priv->keymap[keymap_len], intel_vbtn_keymap, ARRAY_SIZE(intel_vbtn_keymap) * sizeof(struct key_entry)); @@ -155,6 +156,14 @@ static void detect_tablet_mode(struct platform_device *device) input_report_switch(priv->input_dev, SW_DOCK, m); } +static bool intel_vbtn_has_buttons(acpi_handle handle) +{ + acpi_status status; + + status = acpi_evaluate_object(handle, "VBDL", NULL, NULL); + return ACPI_SUCCESS(status); +} + static bool intel_vbtn_has_switches(acpi_handle handle) { const char *chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); @@ -181,12 +190,15 @@ static bool intel_vbtn_has_switches(acpi_handle handle) static int intel_vbtn_probe(struct platform_device *device) { acpi_handle handle = ACPI_HANDLE(&device->dev); + bool has_buttons, has_switches; struct intel_vbtn_priv *priv; acpi_status status; int err; - status = acpi_evaluate_object(handle, "VBDL", NULL, NULL); - if (ACPI_FAILURE(status)) { + has_buttons = intel_vbtn_has_buttons(handle); + has_switches = intel_vbtn_has_switches(handle); + + if (!has_buttons && !has_switches) { dev_warn(&device->dev, "failed to read Intel Virtual Button driver\n"); return -ENODEV; } @@ -196,7 +208,8 @@ static int intel_vbtn_probe(struct platform_device *device) return -ENOMEM; dev_set_drvdata(&device->dev, priv); - priv->has_switches = intel_vbtn_has_switches(handle); + priv->has_buttons = has_buttons; + priv->has_switches = has_switches; err = intel_vbtn_input_setup(device); if (err) {