From patchwork Wed Sep 14 23:57:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raul Rangel X-Patchwork-Id: 12976670 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 A3574ECAAD3 for ; Wed, 14 Sep 2022 23:59:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229696AbiINX7U (ORCPT ); Wed, 14 Sep 2022 19:59:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229853AbiINX7B (ORCPT ); Wed, 14 Sep 2022 19:59:01 -0400 Received: from mail-io1-xd33.google.com (mail-io1-xd33.google.com [IPv6:2607:f8b0:4864:20::d33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 003718993D for ; Wed, 14 Sep 2022 16:58:20 -0700 (PDT) Received: by mail-io1-xd33.google.com with SMTP id b23so13517307iof.2 for ; Wed, 14 Sep 2022 16:58:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=F4E89pQ2FrSepPnER/REAyEkKBd4VwJQnWtxeznDInw=; b=gIASrLgf9OZ8PhCuu5JVaGjTRHApQbKQ2UubkA8t7hWpqS7r2E/RwDlv7HQWzQ6LKL 6+JM6MNE9aTtuT9HqVQ6yw1x4Qq5HE5cVQWl+oPEpoTnD1HyKjgxUHHc7TcGO4Yo0txa Kr8d3LFOQUiPV7G76rXMBecTPmCqhBTW03g/8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=F4E89pQ2FrSepPnER/REAyEkKBd4VwJQnWtxeznDInw=; b=QfXHVi0YsmCIXv/ab7fH/u8zr26XgFVd/+0bEA4jQONYbOCGxPgKYatwQALBl2/In8 wO9RuCpusOBUVMl97u8CvbFmrd54QteR33okNRTDgzwaE7V2/THndgDgI1H8tKLYXMsp W/1MeXwE5W7wMQun+/cVSmzNrrpZK90+NHJlYt4Uor31zR6kiS0zyyNV3+cEynRlo5EH lQbJM7PBzkH+/M6pJkhdRjq6LzJzATEoh8NeMoUW00He0S7CEks4+fbkk2raykQufMgW 6IqbP1Xj39SieECHvmuW5lvRJxcoV8i2LSFJ+voPUNG6MBnM3B6eXdrVvG6Av8iyS/eC sg6w== X-Gm-Message-State: ACgBeo3UmSpR4auhbnGcowbX24OMpc5/bvizBe+l66K1rjiMi7um1mJq m3ryr9mtj2CWzUfbeMTCVaWeLYOdwnX0vw== X-Google-Smtp-Source: AA6agR4JGY5A/brDWXhKfOsB5rBjLJjaRvPL9vy0Xiv7IbO9ITalfAZiHczbd/6pH+4/aoTa1Eicog== X-Received: by 2002:a05:6602:2a47:b0:689:e971:8e67 with SMTP id k7-20020a0566022a4700b00689e9718e67mr16872002iov.47.1663199899601; Wed, 14 Sep 2022 16:58:19 -0700 (PDT) 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 a14-20020a027a0e000000b0034c0e8829c0sm353721jac.0.2022.09.14.16.58.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Sep 2022 16:58:19 -0700 (PDT) From: Raul E Rangel To: linux-acpi@vger.kernel.org, linux-input@vger.kernel.org Cc: jingle.wu@emc.com.tw, rafael@kernel.org, andriy.shevchenko@linux.intel.com, mario.limonciello@amd.com, hdegoede@redhat.com, linus.walleij@linaro.org, timvp@google.com, dmitry.torokhov@gmail.com, Raul E Rangel , Len Brown , linux-kernel@vger.kernel.org Subject: [PATCH v3 08/13] ACPI: PM: Take wake IRQ into consideration when entering suspend-to-idle Date: Wed, 14 Sep 2022 17:57:56 -0600 Message-Id: <20220914155914.v3.8.I7d9202463f08373feccd6e8fd87482c4f40ece5d@changeid> X-Mailer: git-send-email 2.37.3.968.ga6b4b080e4-goog In-Reply-To: <20220914235801.1731478-1-rrangel@chromium.org> References: <20220914235801.1731478-1-rrangel@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org This change adds support for ACPI devices that use ExclusiveAndWake or SharedAndWake in their _CRS GpioInt definition (instead of using _PRW), and also provide power resources. Previously the ACPI subsystem had no idea if the device had a wake capable interrupt armed. This resulted in the ACPI device PM system placing the device into D3Cold, and thus cutting power to the device. With this change we will now query the _S0W method to figure out the appropriate wake capable D-state. Signed-off-by: Raul E Rangel --- (no changes since v1) drivers/acpi/device_pm.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 9dce1245689ca2..6bc81f525d5160 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -681,8 +681,23 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev, d_min = ret; wakeup = device_may_wakeup(dev) && adev->wakeup.flags.valid && adev->wakeup.sleep_state >= target_state; - } else { - wakeup = adev->wakeup.flags.valid; + } else if (acpi_device_can_wakeup(adev)) { + /* ACPI GPE from specified by _PRW. */ + wakeup = true; + } else if (device_may_wakeup(dev) && dev->power.wakeirq) { + /* + * The ACPI subsystem doesn't manage the wake bit for IRQs + * defined with ExclusiveAndWake and SharedAndWake. Instead we + * expect them to be managed via the PM subsystem. Drivers + * should call dev_pm_set_wake_irq to register an IRQ as a wake + * source. + * + * If a device has a wake IRQ attached we need to check the + * _S0W method to get the correct wake D-state. Otherwise we + * end up putting the device into D3Cold which will more than + * likely disable wake functionality. + */ + wakeup = true; } /*