From patchwork Wed Jun 21 14:40:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 694853 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 3B5B3EB64D8 for ; Wed, 21 Jun 2023 14:40:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230511AbjFUOk2 (ORCPT ); Wed, 21 Jun 2023 10:40:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229923AbjFUOk1 (ORCPT ); Wed, 21 Jun 2023 10:40:27 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 59D2F1735 for ; Wed, 21 Jun 2023 07:40:26 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id 38308e7fff4ca-2b470330145so59577311fa.3 for ; Wed, 21 Jun 2023 07:40:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1687358424; x=1689950424; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=BIB5wlsg1EGijWyF8j75rKQgBWBiWi5YkvKjCqAmdlA=; b=hZPbxCk9XomiOQ86nLsKa9dg5VwY4wVkkRVEU+cDxbFEM+K8+b0BMrhwJnpdzq/0pz rCuE1hbYh8VV0GTWXM14TwPmqPvBWkle4n8WBK542wPk8521nEWj7NkXJcMaDrjttFam V4yR5DFCFFIcXklM/60ZbdaFtySrXICV+vjlfsokVGWjDPFVHyUQ3Y1qlqIXnRl97aV/ PLJkgb4n/lyGB9ibzT/VKBGZjLzaKarEAa6mAzHVeLR84tiestjLMnguFe8NI5QSWaBH leJnf2t9e+JPvcDCnoLkpHreNi/SOk8+ICal1qavMc32+jOF/InGmEPhs9dJ3JlgGBnI 41tA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687358424; x=1689950424; 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:message-id:reply-to; bh=BIB5wlsg1EGijWyF8j75rKQgBWBiWi5YkvKjCqAmdlA=; b=j4BnFUeptu54ePRlkWQgGHjwpg+N38olXlqplMdqIV1cchM8pox6B89IJBLQR9KMG3 urtqljjpKliVprD5dVyQeLfeFRbYqXtHoJHebEWnuTTksCqJvh941X6tFLpSs/uNQucY zbfsnnZUJ8AlWF/t+f3dKbj/X/XFzRgiqHhMOk2nsyjkwMWte3DliDPIxiOlr+U7rsAE /VjysDyn89pPlhhUUtZ3smiER8LUxorhLEue7n3E51ZOOuqIFDwyMxC6YTRHgINCy7BB sdQ0HsWr3drY1PDaVd8MyJQVXcn1t/mLmFnHdXmZVBqM4A35E6wgyxd9sXHB97CTJMGm 8teQ== X-Gm-Message-State: AC+VfDz7CMYkqRWcCtaS483B8ythc0sm77cjMSH7n94sektsZMpny7sc GwpMLex04PvvUtHRISFDdtM4QA== X-Google-Smtp-Source: ACHHUZ7k63ENiQkXV05akRIrSQQx+fyIyMmPCMnSBT7DefX3zvKIr+pXgiEvpsGoEML2BHGHFjQs5w== X-Received: by 2002:a2e:b16d:0:b0:2b4:7875:dd98 with SMTP id a13-20020a2eb16d000000b002b47875dd98mr6627839ljm.23.1687358424498; Wed, 21 Jun 2023 07:40:24 -0700 (PDT) Received: from hackbox.lan ([82.79.124.17]) by smtp.gmail.com with ESMTPSA id l13-20020a056402344d00b0051879c4f598sm2689505edc.66.2023.06.21.07.40.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jun 2023 07:40:23 -0700 (PDT) From: Abel Vesa To: "Rafael J . Wysocki" , Kevin Hilman , Ulf Hansson , Len Brown , Pavel Machek , Greg Kroah-Hartman , Saravana Kannan Cc: Bjorn Andersson , linux-pm@vger.kernel.org, Linux Kernel Mailing List , linux-arm-msm@vger.kernel.org, Dmitry Baryshkov Subject: [RFC PATCH v5 1/4] driver core: Add dev_set_drv_sync_state() Date: Wed, 21 Jun 2023 17:40:16 +0300 Message-Id: <20230621144019.3219858-2-abel.vesa@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230621144019.3219858-1-abel.vesa@linaro.org> References: <20230621144019.3219858-1-abel.vesa@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Saravana Kannan This can be used by frameworks to set the sync_state() helper functions for drivers that don't already have them set. Signed-off-by: Saravana Kannan Acked-by: Greg Kroah-Hartman --- include/linux/device.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index 66c13965153d..bae11928ef7e 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -995,6 +995,18 @@ static inline bool dev_has_sync_state(struct device *dev) return false; } +static inline int dev_set_drv_sync_state(struct device *dev, + void (*fn)(struct device *dev)) +{ + if (!dev || !dev->driver) + return 0; + if (dev->driver->sync_state && dev->driver->sync_state != fn) + return -EBUSY; + if (!dev->driver->sync_state) + dev->driver->sync_state = fn; + return 0; +} + static inline void dev_set_removable(struct device *dev, enum device_removable removable) {