From patchwork Mon Dec 20 23:43:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raul Rangel X-Patchwork-Id: 12688805 X-Patchwork-Delegate: jikos@jikos.cz 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 3B960C433F5 for ; Mon, 20 Dec 2021 23:44:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233135AbhLTXn7 (ORCPT ); Mon, 20 Dec 2021 18:43:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233110AbhLTXn7 (ORCPT ); Mon, 20 Dec 2021 18:43:59 -0500 Received: from mail-io1-xd30.google.com (mail-io1-xd30.google.com [IPv6:2607:f8b0:4864:20::d30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E5F23C061574 for ; Mon, 20 Dec 2021 15:43:58 -0800 (PST) Received: by mail-io1-xd30.google.com with SMTP id z26so15398549iod.10 for ; Mon, 20 Dec 2021 15:43:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=U7gfCT4e8tEF3Otc3jGKu2gDoX5PakWDro5ts+abDGE=; b=YxZu/YPWyU2AnSsazyq+qxcIZ3Z409yrt6LhZuMx630zssLhbn5w2/gVZ/5qrvV1vj 05Mlb43Bv98Yja/AAHpIVPAE9ZaQ8Ep1DdxIoYgDG+e7zhoA5v8OYsKfrYAIJYeQNHXw s853/lpIHRnNE7VCbm/DFmlTL5EargiFErddY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=U7gfCT4e8tEF3Otc3jGKu2gDoX5PakWDro5ts+abDGE=; b=nA7OW8+/UQqGFKhrXeVC2rDrjIsnRYU551YC6fFB4DEWDlsh9wN0mZ9JuQTdI5IIv6 piv/J7+MV23woUP3Mk/VegUP7rUwUVLHAS1oiy0EYChi0IqCPYOMsC9mAKp6OV3c57gW Lh6ZFR6HOGTgz56An98g8Rv0AnfBIMxB40neqK2uSLm/ekmQcjWFtlE9wgWnMRplF96+ f89ylDG504r2u2XpWuwwZf13vQL+7VgESaaktc8wxgrZHWTIZbaSDvv+20sTSEpNgRvF EZDV81Sly0LoNx/ehFqO3Z0SH/YgAYt9rHiznVkgYjas/GQrcikBfd2lQldDfIGz3mV2 NaDQ== X-Gm-Message-State: AOAM5329sPlJNlWOU+SKX/CXfvWCaMPDkDN5agmufMGWqIHRQEGHFFKD T/dzAQSKkWvl40prSZ2y/yU8JQ== X-Google-Smtp-Source: ABdhPJzryZU8oQ0MchKWRjKQoAN9qnAYWbQhhUUaSNuHjYogepM/WJ4dd4hjqKHJ0ndKKiJ9LyzumQ== X-Received: by 2002:a05:6638:140e:: with SMTP id k14mr335461jad.251.1640043838339; Mon, 20 Dec 2021 15:43:58 -0800 (PST) Received: from rrangel920.bld.corp.google.com (h24-56-189-219.arvdco.broadband.dynamic.tds.net. [24.56.189.219]) by smtp.gmail.com with ESMTPSA id k19sm4077521ilr.34.2021.12.20.15.43.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Dec 2021 15:43:58 -0800 (PST) From: Raul E Rangel To: linux-kernel@vger.kernel.org Cc: mario.limonciello@amd.com, linux-input@vger.kernel.org, dianders@chromium.org, Raul E Rangel , Andy Shevchenko , Benjamin Tissoires , Hans de Goede , Jiri Kosina Subject: [PATCH 1/3] HID: i2c-hid-acpi: Remove explicit device_set_wakeup_capable Date: Mon, 20 Dec 2021 16:43:44 -0700 Message-Id: <20211220163823.1.Ie20ca47a26d3ea68124d8197b67bb1344c67f650@changeid> X-Mailer: git-send-email 2.34.1.307.g9b7440fafd-goog In-Reply-To: <20211220234346.2798027-1-rrangel@chromium.org> References: <20211220234346.2798027-1-rrangel@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org The ACPI subsystem is responsible for managing the power and wake sources for an ACPI device. By explicitly calling device_set_wakeup_capable, we are circumvent the ACPI subsystem and setting wake capabilities on the device when it doesn't support it. Take the following example: * We have an ACPI HID device that has `_PR0` and `_PR3`. It doesn't have `_PRW` so that means the device can't wake the system. * The IRQ line is active level low for this device and is pulled up by the power resource defined in `_PR0`/`_PR3`. Since the i2c-hid driver has set the device as wake capable, the wake pin gets enabled on suspend. As part of suspend, ACPI will power down the device since it's not a wake source. When the device is powered down, the IRQ line will drop, and it will trigger a wake event. See the following debug log: [ 42.335804] PM: Suspending system (s2idle) [ 42.340186] amd_gpio AMD0030:00: RX: Setting wake for pin 89 to enable [ 42.467736] power-0416 __acpi_power_off : Power resource [PR00] turned off [ 42.467739] device_pm-0280 device_set_power : Device [H05D] transitioned to D3cold [ 42.475210] PM: pm_system_irq_wakeup: 11 triggered pinctrl_amd [ 42.535293] PM: Wakeup unrelated to ACPI SCI [ 42.535294] PM: resume from suspend-to-idle Signed-off-by: Raul E Rangel --- drivers/hid/i2c-hid/i2c-hid-acpi.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/hid/i2c-hid/i2c-hid-acpi.c b/drivers/hid/i2c-hid/i2c-hid-acpi.c index a6f0257a26de..fc311a19a19d 100644 --- a/drivers/hid/i2c-hid/i2c-hid-acpi.c +++ b/drivers/hid/i2c-hid/i2c-hid-acpi.c @@ -105,11 +105,6 @@ static int i2c_hid_acpi_probe(struct i2c_client *client) acpi_device_fix_up_power(adev); - if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) { - device_set_wakeup_capable(dev, true); - device_set_wakeup_enable(dev, false); - } - return i2c_hid_core_probe(client, &ihid_acpi->ops, hid_descriptor_address); }