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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 46B32C43217 for ; Fri, 22 Oct 2021 02:29:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 22A906135E for ; Fri, 22 Oct 2021 02:29:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232274AbhJVCb2 (ORCPT ); Thu, 21 Oct 2021 22:31:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232294AbhJVCb0 (ORCPT ); Thu, 21 Oct 2021 22:31:26 -0400 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53D4DC061220 for ; Thu, 21 Oct 2021 19:29:09 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id q14-20020a056a00084e00b0044e00ec4884so1461130pfk.8 for ; Thu, 21 Oct 2021 19:29:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=ppyPwtt5n85t9ULlL3N3xlbKIm0Tw6nUJj2XNXuvqyM=; b=pE3noKnzPMT7teGJLrQJpn1gerl+AMcHg8Dbs1ag4fUvRBlJzJBG1sTYH11At0gW5o R7uU9pewISmYZsLVrahy3kEnTTNgqNSBFQ/QbU5jbtpIdMdKgjKkShAyYskfrpkKw/fr OTcN5LaTiIED26DSiYM9gIp6bM3rXpMdDePStxu6+IGqGTj7ze+uXuBxzbGwbyzxykED ER6WL42eFjN2Yo7Pin9BJFAkR7J+t3V7h54btZqtwiFVbArkuPXH1ZMDqqOMvvGLsOsg FSYzpGLw9b0/AUKDpizj8flGmTwlSQyS1nqYv45S+YZ10Pzn/9cDsxLp5EYzE/wsJaaF 1BNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=ppyPwtt5n85t9ULlL3N3xlbKIm0Tw6nUJj2XNXuvqyM=; b=fsEl9e/MM1MmA7udxg85FO8ysDbdDtIKktqzwVbT7DfTK9VynsDIwiXhZ8isFRiPx8 grdsifB82nYEPVx6tdjWVizLpxbg5ThkVYeP7cRDRl30bUmClnBL9pn/MiQ/JEDiRo83 2MJ4zXrf0wi5HwmKtxW4W4ol/wiNKZSwbW8ojQu65Vrq6qP+lBy9B7Ary0MEV1NgSTRV 6vuVBYqjeBuee/UFf6da/VbjFo8O6dcLjNGU7MTuOeDmyfw2CgPGkpm7Em5hHnUGonvr tWZiIb7o8LM2hrCY2OYgYGOZ8qu7Zs5qQVhCrOMimliLpBsA8SdHPps8Bz+P+rCJqc+C DBBw== X-Gm-Message-State: AOAM531vngOo43yPIDFnFFe/eLdCT/jk9gX/JwtacdZvEw6zhb3txona OmR+vY5s14MxSODbUZHAFw41ncyZYid1 X-Google-Smtp-Source: ABdhPJwQAVpfNpKQ2duOM0MLmXlIIPimsq+Dsm9f51VuSfRwP2v4psGr6i7e6lSzKHwLnSB3acJA8MnzeCdn X-Received: from rajat2.mtv.corp.google.com ([2620:15c:202:201:cc25:d9a3:4b5:37b9]) (user=rajatja job=sendgmr) by 2002:a17:902:db0e:b0:13e:f4d3:84c with SMTP id m14-20020a170902db0e00b0013ef4d3084cmr8682802plx.2.1634869748751; Thu, 21 Oct 2021 19:29:08 -0700 (PDT) Date: Thu, 21 Oct 2021 19:28:58 -0700 In-Reply-To: <20211022022859.1888836-1-rajatja@google.com> Message-Id: <20211022022859.1888836-3-rajatja@google.com> Mime-Version: 1.0 References: <20211022022859.1888836-1-rajatja@google.com> X-Mailer: git-send-email 2.33.0.1079.g6e70778dc9-goog Subject: [PATCH 2/3] i2c: enable async suspend/resume for i2c adapters From: Rajat Jain To: Jarkko Nikula , Andy Shevchenko , Mika Westerberg , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dtor@google.com Cc: Rajat Jain , rajatxjain@gmail.com, dbasehore@chromium.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Enable async suspend/resume of i2c adapters. It enormously helps with reducing the resume time of systems (as much as 20%-40%) where I2C devices can take significant time (100s of ms) to resume. Signed-off-by: Rajat Jain --- drivers/i2c/i2c-core-base.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 54964fbe3f03..8d4f2be54e17 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -1576,6 +1576,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap) if (res) goto out_reg; + device_enable_async_suspend(&adap->dev); pm_runtime_no_callbacks(&adap->dev); pm_suspend_ignore_children(&adap->dev, true); pm_runtime_enable(&adap->dev); -- 2.33.0.1079.g6e70778dc9-goog