From patchwork Thu Jan 27 20:01:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 537149 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 802CFC433FE for ; Thu, 27 Jan 2022 20:01:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240090AbiA0UB6 (ORCPT ); Thu, 27 Jan 2022 15:01:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240257AbiA0UB6 (ORCPT ); Thu, 27 Jan 2022 15:01:58 -0500 Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61626C06173B for ; Thu, 27 Jan 2022 12:01:58 -0800 (PST) Received: by mail-pl1-x62d.google.com with SMTP id c3so3697708pls.5 for ; Thu, 27 Jan 2022 12:01:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=mlOjEQaGgQJEWexKeIDPB6ZywfuO0Krhl/6WTCAgp1U=; b=eyrrZkbzPEVq72Z6fNYVKdNXOMuVYUB7XGcmAelArR/eBBTm4qv34sUVGHRw2+3Xjb qxYlvdBkbnSilPXGvWPCeiDXV+5AgRyZ6rpwDbyu6pszvNmM2d966CHxA1CXRr6njd4o N75g5GBD63J2h2qcjJmsi51wKmNMAMIts0FjU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=mlOjEQaGgQJEWexKeIDPB6ZywfuO0Krhl/6WTCAgp1U=; b=MhdRXUuoiQP552DDsY7h/UOR/6O2iTcgIeodf7QsuyKfg+hUsxcUqsWBHbiO7fMKQb zN0eBKehdxlBtGHFxz/oQaIOHv7XF8S0L3kZsNF0Y2KL4+pYHgb5Sx3TOpGvi3vbEWSX bbjAEDMvcn1jOUcv9kvCpuUBsXGGasGlDes4DoUzItbD2YCo3j86BfkzGWIiCSbmfbfx jVdwUpzk2GyTjs4lIFGlgxeGiQWBYgXkEiTEQL3nCb9O1NHGALLkHLPF2ppaUBQV+1Eu /iRbMf4C1XDitOZ5jdQfqK87w6594GY2dbOd2C+klQ+8JhkmypVxAZ74C2o6x/mG1FUK UwJQ== X-Gm-Message-State: AOAM533E9BrV5VSjLvQCcr2aciabRY+q9o7URsQauEU93s1uuu85sFks /vsx3wf3my3utqq0gww3fRo7hg== X-Google-Smtp-Source: ABdhPJw9tnBKTD10bdf8LXuHDZN29rkJYFCfmvP96l1VR5CM/34SWpZehvfM/GsxZluqGTjuFM522g== X-Received: by 2002:a17:902:f68e:: with SMTP id l14mr4800119plg.164.1643313717953; Thu, 27 Jan 2022 12:01:57 -0800 (PST) Received: from smtp.gmail.com ([2620:15c:202:201:9246:1838:3243:3071]) by smtp.gmail.com with ESMTPSA id k21sm6561190pff.33.2022.01.27.12.01.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jan 2022 12:01:57 -0800 (PST) From: Stephen Boyd To: Greg Kroah-Hartman , Douglas Anderson Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, Jani Nikula , Daniel Vetter , Laurent Pinchart , "Rafael J. Wysocki" , Rob Clark , Russell King , Saravana Kannan Subject: [PATCH v6 03/35] component: Add aggregate_device_parent() for driver use Date: Thu, 27 Jan 2022 12:01:09 -0800 Message-Id: <20220127200141.1295328-4-swboyd@chromium.org> X-Mailer: git-send-email 2.35.0.rc0.227.g00780c9af4-goog In-Reply-To: <20220127200141.1295328-1-swboyd@chromium.org> References: <20220127200141.1295328-1-swboyd@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This allows aggregate driver writers to get the parent of the aggregate device passed to their probe/remove/shutdown functions. Suggested-by: Jani Nikula Cc: Daniel Vetter Cc: Greg Kroah-Hartman Cc: Laurent Pinchart Cc: "Rafael J. Wysocki" Cc: Rob Clark Cc: Russell King Cc: Saravana Kannan Signed-off-by: Stephen Boyd --- drivers/base/component.c | 6 ++++++ include/linux/component.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/base/component.c b/drivers/base/component.c index dc748ef0b23b..13ac2004a913 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -71,6 +71,12 @@ static inline struct aggregate_device *to_aggregate_device(struct device *d) return container_of(d, struct aggregate_device, dev); } +struct device *aggregate_device_parent(const struct aggregate_device *adev) +{ + return adev->parent; +} +EXPORT_SYMBOL_GPL(aggregate_device_parent); + struct component { struct list_head node; struct aggregate_device *adev; diff --git a/include/linux/component.h b/include/linux/component.h index aa69ea0401d3..c39dea7824af 100644 --- a/include/linux/component.h +++ b/include/linux/component.h @@ -43,6 +43,7 @@ int component_bind_all(struct device *parent, void *data); void component_unbind_all(struct device *parent, void *data); struct aggregate_device; +struct device *aggregate_device_parent(const struct aggregate_device *adev); /** * struct component_master_ops - callback for the aggregate driver