From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1146594-1518691252-2-11715328908585471980 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no ("Email failed DMARC policy for domain") X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='com', MailFrom='org' X-Spam-charsets: X-IgnoreVacation: yes ("Email failed DMARC policy for domain") X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-usb-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518691251; b=QWaCLz+utGDoTW9cpy07Ec41wFDkUV6AaawGDC7aG8rZgd0 kHzw/oAfACSeEgU7Sqk4HRCCOzPrBooRduL0WBYXKe/NmKIry7qVksmq0g/p8abP pu53ol5c8NwREtksc+1G++f009FvyfVAJHPgUNpYyJljRdoCWSIDTPxlUiumvTCm ChduJvodRcnRKnfxbFRT/i/heUP2+78rzGzaq3ie8tJ6/t0X9j+Ca6lq2BBHu8WL fGtIc/QIKy+iJ93cbbSOWopVOgrQJbL9dMIYHoYsu3D6e1alDJ8nmkbCVuxs6JmP PxhlMEyl4wd2MizyHqwhep4/a5plLUyCmXNLVDw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:sender:list-id; s=arctest; t=1518691251; bh=mr7gf62V4U79ARIUVqoHcehBY8W4+5Q5P3QG9FN85nA=; b=gg59Wme4LEVS KsQymp0CELnOYxsSYZyy1cIqe+ubamt47uISNgpD3cTDSnYlpSkNedZKnLNzon0M +k126N6c4Rx5LutVgxlM1/dRbjSr9SzZQaEgaZ1VwUca56s+4F7aYtAc9Xco2fBZ 5ZSlmhKAb3HDnejUZMv8mPaFOgt3sZgBUd+HEhl3xqYIm1fEHPUMbb9MLJacbJYA pA9vH5jQvYclDyEQwiEZgXHQ7sfGuARKhvnZcvc+DjVUvNQHKbzC2C2arm9B31ok BLNfM6M4JI6xrzmnWaMECSyK1azyJxXq0ck+3splSwySQOrr8xNdTTWhJY906n6H lSRlEih81A== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=fail (body has been altered; 1024-bit rsa key sha256) header.d=samsung.com header.i=@samsung.com header.b=MKGwdyCT x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=mail20170921; dmarc=fail (p=none,has-list-id=yes,d=none) header.from=samsung.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=samsung.com header.result=pass header_is_org_domain=yes Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=fail (body has been altered; 1024-bit rsa key sha256) header.d=samsung.com header.i=@samsung.com header.b=MKGwdyCT x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=mail20170921; dmarc=fail (p=none,has-list-id=yes,d=none) header.from=samsung.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=samsung.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755515AbeBOKkh (ORCPT ); Thu, 15 Feb 2018 05:40:37 -0500 Received: from mailout2.w1.samsung.com ([210.118.77.12]:50953 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755389AbeBOKjg (ORCPT ); Thu, 15 Feb 2018 05:39:36 -0500 DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20180215103934euoutp022b704cd55adbb500dabf13d333840873~TeZOOgJF61269412694euoutp02d X-AuditID: cbfec7f4-b4fc79c0000043e4-d8-5a8563612542 From: Andrzej Hajda To: devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) Cc: Andrzej Hajda , Bartlomiej Zolnierkiewicz , Marek Szyprowski , dri-devel@lists.freedesktop.org, Inki Dae , Rob Herring , Mark Rutland , Krzysztof Kozlowski , Chanwoo Choi , Archit Taneja , Laurent Pinchart , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-usb@vger.kernel.org Subject: [RFC PATCH v2 5/6] extcon: add possibility to get extcon device by OF node Date: Thu, 15 Feb 2018 11:39:19 +0100 Message-id: <20180215103920.32017-6-a.hajda@samsung.com> X-Mailer: git-send-email 2.16.1 In-reply-to: <20180215103920.32017-1-a.hajda@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrEIsWRmVeSWpSXmKPExsWy7djP87qJya1RBrefmVrcWneO1aKp4y2r xcYZ61ktrn95zmox/whQ7MrX92wWk+5PYLE4f34Du0XnxCXsFpseX2O1uLxrDpvFjPP7mCwW LWtltlh75C67xdLrF5ksWvceYXcQ8Fgzbw2jx+W+XiaP2R0zWT02repk87jffZzJY/OSeo++ LasYPT5vkgvgiOKySUnNySxLLdK3S+DKOHtjB3vBZ6mKQ8++MjUwHhfrYuTkkBAwkdjTtIa9 i5GLQ0hgBaPEpP8nWCCcz4wSl1oPsMNUtS7exgqRWMYo0fhiOZTzH6jl7To2kCo2AU2Jv5tv gtkiArES7y7tYgYpYha4wCJx4fQrsFHCAqES665tZgWxWQRUJXasbgazeQUsJFpa5jFDrJOX OPymCSjOwcEpYCkxZb4FyBwJgdtsEjvWX2GFqHGROHBwN9R5whKvjm+BsmUkOjsOMkE0dDNK nNrXyQzhTGGUOP/qMhNElbXE4eMXwSYxC/BJTNo2nRlkm4QAr0RHmxBEiYfEg0NHGCFsR4kl 639AA6aHUWLFvqvMExilFjAyrGIUTy0tzk1PLTbKSy3XK07MLS7NS9dLzs/dxAhMCaf/Hf+y g3HXn6RDjAIcjEo8vAY2LVFCrIllxZW5hxglOJiVRHg/RrVGCfGmJFZWpRblxxeV5qQWH2KU 5mBREueN06iLEhJITyxJzU5NLUgtgskycXBKNTCyP/+j/MKo1Wimx6fLt6aU/eHLW3P6YtU9 tbMrxOu7tYQWZ8fGm3q7eDlv8X31cgdzJNN885wZzV+MXOdoMMpnN9k1rY47y2Y5vb6Ey7ZM oMXrbOCD/Md7s94WzmlZnBe9JFl0a+HC5ndztptdK/jGf3DGvsoL/14FLtr97ofPJ2+/xKkT 5rcrsRRnJBpqMRcVJwIAxLQEMAUDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrILMWRmVeSWpSXmKPExsVy+t/xq7oJya1RBmfWClrcWneO1aKp4y2r xcYZ61ktrn95zmox/whQ7MrX92wWk+5PYLE4f34Du0XnxCXsFpseX2O1uLxrDpvFjPP7mCwW LWtltlh75C67xdLrF5ksWvceYXcQ8Fgzbw2jx+W+XiaP2R0zWT02repk87jffZzJY/OSeo++ LasYPT5vkgvgiOKySUnNySxLLdK3S+DKOHtjB3vBZ6mKQ8++MjUwHhfrYuTkkBAwkWhdvI0V xBYSWMIo0fROr4uRC8huZJKYd/QyM0iCTUBT4u/mm2wgtohArMTbU5+ZQYqYBS6wSPyeOJMd JCEsECqx4cBnsEksAqoSO1Y3g9m8AhYSLS3zmCG2yUscftMEFOfg4BSwlJgy3wJisYXExsnz WCcw8ixgZFjFKJJaWpybnltsqFecmFtcmpeul5yfu4kRGLDbjv3cvIPx0sbgQ4wCHIxKPLwG Ni1RQqyJZcWVuYcYJTiYlUR4P0a1RgnxpiRWVqUW5ccXleakFh9ilOZgURLnPW9QGSUkkJ5Y kpqdmlqQWgSTZeLglGpgZMjb1/auWf4cd125YIO8ya7LW/guGYf4HPCymBqgpmd6Y9G0qzHX WXz7Lv27cnXLGQXGxP6Yj2rTOYON5u87l/ArwnjhpkijaZkz/zX3XtgX+v3jWWW+mRGXAlMa Jx1OKVzodKLx+Z1M57vWJTZb9907X+fwTMUmumurvmbPznYX94+bHa/8VWIpzkg01GIuKk4E AMz8QntUAgAA X-CMS-MailID: 20180215103928eucas1p1b2ef8630cf86f2799b4689d6786bdf4e X-Msg-Generator: CA CMS-TYPE: 201P X-CMS-RootMailID: 20180215103928eucas1p1b2ef8630cf86f2799b4689d6786bdf4e X-RootMTR: 20180215103928eucas1p1b2ef8630cf86f2799b4689d6786bdf4e References: <20180215103920.32017-1-a.hajda@samsung.com> Sender: linux-usb-owner@vger.kernel.org X-Mailing-List: linux-usb@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Since extcon property is not allowed in DT, extcon subsystem requires another way to get extcon device. Lets try the simplest approach - get edev by of_node. Signed-off-by: Andrzej Hajda Acked-by: Chanwoo Choi --- v2: changed label to follow local convention (Chanwoo) --- drivers/extcon/extcon.c | 44 ++++++++++++++++++++++++++++++++++---------- include/linux/extcon.h | 6 ++++++ 2 files changed, 40 insertions(+), 10 deletions(-) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index cb38c2747684..c4972c4cb3bd 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -1336,6 +1336,28 @@ void extcon_dev_unregister(struct extcon_dev *edev) EXPORT_SYMBOL_GPL(extcon_dev_unregister); #ifdef CONFIG_OF + +/* + * extcon_get_edev_by_of_node - Get the extcon device from devicetree. + * @node : OF node identyfying edev + * + * Return the pointer of extcon device if success or ERR_PTR(err) if fail. + */ +struct extcon_dev *extcon_get_edev_by_of_node(struct device_node *node) +{ + struct extcon_dev *edev; + + mutex_lock(&extcon_dev_list_lock); + list_for_each_entry(edev, &extcon_dev_list, entry) + if (edev->dev.parent && edev->dev.parent->of_node == node) + goto out; + edev = ERR_PTR(-EPROBE_DEFER); +out: + mutex_unlock(&extcon_dev_list_lock); + + return edev; +} + /* * extcon_get_edev_by_phandle - Get the extcon device from devicetree. * @dev : the instance to the given device @@ -1363,25 +1385,27 @@ struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index) return ERR_PTR(-ENODEV); } - mutex_lock(&extcon_dev_list_lock); - list_for_each_entry(edev, &extcon_dev_list, entry) { - if (edev->dev.parent && edev->dev.parent->of_node == node) { - mutex_unlock(&extcon_dev_list_lock); - of_node_put(node); - return edev; - } - } - mutex_unlock(&extcon_dev_list_lock); + edev = extcon_get_edev_by_of_node(node); of_node_put(node); - return ERR_PTR(-EPROBE_DEFER); + return edev; } + #else + +struct extcon_dev *extcon_get_edev_by_of_node(struct device_node *node) +{ + return ERR_PTR(-ENOSYS); +} + struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index) { return ERR_PTR(-ENOSYS); } + #endif /* CONFIG_OF */ + +EXPORT_SYMBOL_GPL(extcon_get_edev_by_of_node); EXPORT_SYMBOL_GPL(extcon_get_edev_by_phandle); /** diff --git a/include/linux/extcon.h b/include/linux/extcon.h index 6d94e82c8ad9..b47e0c7f01fe 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -230,6 +230,7 @@ extern void devm_extcon_unregister_notifier_all(struct device *dev, * Following APIs get the extcon_dev from devicetree or by through extcon name. */ extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name); +extern struct extcon_dev *extcon_get_edev_by_of_node(struct device_node *node); extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index); @@ -283,6 +284,11 @@ static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name) return ERR_PTR(-ENODEV); } +static inline struct extcon_dev *extcon_get_edev_by_of_node(struct device_node *node) +{ + return ERR_PTR(-ENODEV); +} + static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index) { -- 2.16.1