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 X-Spam-Level: X-Spam-Status: No, score=-20.6 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6046FC433E4 for ; Thu, 16 Jul 2020 04:21:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34879206C1 for ; Thu, 16 Jul 2020 04:21:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="dW8P0Vke" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726202AbgGPEVD (ORCPT ); Thu, 16 Jul 2020 00:21:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38292 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726166AbgGPEU7 (ORCPT ); Thu, 16 Jul 2020 00:20:59 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68973C061755 for ; Wed, 15 Jul 2020 21:20:59 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 8so5608910ybc.23 for ; Wed, 15 Jul 2020 21:20:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=t5BsHfPfwFVdHmiG0W5J1oIj8NgJvst3ZhdQc1gbEek=; b=dW8P0Vke6ERAMi0eBPrG+t/SoxjO80foc+7Mx40qQ8SuP2cyTBv4uJqs7QXnYia6yH Lwp0cCj5vlEYdEZtfIW9lgmfgJNSgiaPeSJA0QnWY6sjx54y2AcdLLLgayFcslxHp3Dh 109wayv//wcAAf4AGEmNO7icGq5PObOWMxbf1IcuZlkuc13yYBddq0FV8aBhLeUdrEI8 eiq0vY8wm731Pfe66uJxfw9Hh5mak2/Otl1Loxo1giQZSDzFtWnmOZbfDCHeUNMvq46I 8oknyD+JH3ZgkeJEvtZlCGcitcFevptg6Kl8BRHPgmTvttNHHBBMgsZWFAuLiozmAIQm OZmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=t5BsHfPfwFVdHmiG0W5J1oIj8NgJvst3ZhdQc1gbEek=; b=GIyysXaTUG4BuOMhXrbIqzddX4mTV5UGD/ksE+xXH25f73Nc6tmvJWKLsx7a+xfDBk TJbG89PcWiwOmKxjxxAvhKZ3N/rNDWOds33NgxFOIYzPMt5UW3aHj0tsmMSy9lgnNqAg 4j/UqAs4s/onIiWgZ2MlU4Rc2PZOjFh+k8vN27DFPZvrOIuF3a4xu0PJyUdfuLJ3fTLE OU9h0pNdoXLTTBADFD0hWqZTyGwHaiU1ApK6MYhFQUPg9nAd5Ss9DqcfdejCbKO7pLYm Gz/hWDVb+Z5i9CMvfh8lZ2nDput8LGIWqf9BgH67RPbpHUKs2/3f1aMVHHAsjYKRBYPR 6gbA== X-Gm-Message-State: AOAM532xri+U7sntFXjdz+b0jJGBPT8F2TBliAT0WfduxgxgTjrJ/L6D NavmWV9kWYCA+MG40p0efYRBiyeKKgCj92w= X-Google-Smtp-Source: ABdhPJxAohZPC7dEvTt/1RmjvaDTRQUlcxLRKuc5obRasiVtvJdZoLvTMIYhPBylJdUu+IDrzMC4x+MDzZlLG+o= X-Received: by 2002:a25:2d4d:: with SMTP id s13mr3733112ybe.349.1594873258589; Wed, 15 Jul 2020 21:20:58 -0700 (PDT) Date: Wed, 15 Jul 2020 21:20:50 -0700 In-Reply-To: <20200716042053.1927676-1-saravanak@google.com> Message-Id: <20200716042053.1927676-2-saravanak@google.com> Mime-Version: 1.0 References: <20200716042053.1927676-1-saravanak@google.com> X-Mailer: git-send-email 2.28.0.rc0.105.gf9edc3c819-goog Subject: [PATCH v3 1/4] driver core: Add dev_set_drv_sync_state() From: Saravana Kannan To: Liam Girdwood , Mark Brown , Greg Kroah-Hartman Cc: Saravana Kannan , Marek Szyprowski , John Stultz , linux-kernel@vger.kernel.org, kernel-team@android.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- include/linux/device.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/device.h b/include/linux/device.h index 15460a5ac024..2f56afdd9107 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -806,6 +806,18 @@ 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; +} + /* * High level routines for use by the bus drivers */ -- 2.28.0.rc0.105.gf9edc3c819-goog