From patchwork Fri Oct 22 02:28:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajat Jain X-Patchwork-Id: 1544756 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20210112 header.b=pE3noKnz; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4Hb7Zy4FbTz9sXN for ; Fri, 22 Oct 2021 13:29:14 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232294AbhJVCb2 (ORCPT ); Thu, 21 Oct 2021 22:31:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232277AbhJVCb0 (ORCPT ); Thu, 21 Oct 2021 22:31:26 -0400 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53570C061764 for ; Thu, 21 Oct 2021 19:29:09 -0700 (PDT) Received: by mail-pj1-x1049.google.com with SMTP id mn23-20020a17090b189700b001a04f094a68so960891pjb.2 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=1SgDQqsYrfrUkTLByzHxZOx0OcyBYBAC6qN1Yj/gM4mpjDk7ec/NHJRfQzOYt2TTDN iRrPRFIcmgDW5Y2lSdvIaAMJnyvZtvxP3b18TNdtxR9+GC91DVIMju5T7CyvdIGEv8es z+BkYTAEv+1x68BSVE/AR/x34Lu7ALX083jubOirMQif5g7jCWEw/2tf5eMXDEELHDgg XZfA/djRKaKxIXes4z13YUnmNRfY8bU/fejiFZ1+qGCqgffG9rvRS+nnx8nlgYE7kSqo HDGUhc4poPMFmNfzJhCWWgbyL2WBfbBbYMegymTgyU5v3Q7+hovjn5AfZTy7kHDNf8gJ +VAQ== X-Gm-Message-State: AOAM530qzzxXE+gBMy+EGVji6lu3zBCgCFbif9Rq3rA47DCK6EXhVk8X SAHGv0Tf5DEqAJJDsdj8EXC0EChecyw6 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 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@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);