From patchwork Thu Dec 24 01:08:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Scally X-Patchwork-Id: 11989087 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 35D1CC433E6 for ; Thu, 24 Dec 2020 01:10:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0A2E822517 for ; Thu, 24 Dec 2020 01:10:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728701AbgLXBKU (ORCPT ); Wed, 23 Dec 2020 20:10:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728544AbgLXBKG (ORCPT ); Wed, 23 Dec 2020 20:10:06 -0500 Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 97A5CC0617A6; Wed, 23 Dec 2020 17:09:25 -0800 (PST) Received: by mail-wm1-x32a.google.com with SMTP id k10so366120wmi.3; Wed, 23 Dec 2020 17:09:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=N4tk1Bevx+jHiB4szN/k2Lq1XHl7fOtbHhHNJ2QDs2k=; b=XLcgqrbs+4Aj1XYSCIY+f4/Z9i7LBKAhxpgMW437fxN5Z1MOHv0h55eLqTdzUqFUml slf/VUmjy317dT/h/qba1mHSGHbkDW9LIuaReD3T74Dzj5XEbBOdOdrBvkq0/49HR2H+ KK0N8kluDU0kNE0DwLcFqDzJlvg0fEPB3Tej2uYJcud0sDkOVv4oGDbu0+TN37s2yHBn JbnMC1FVd+OYh9xB9yNxHVfnKmF8f6iXGyVYqkCo2NzDcuUVjJsC4RGAP5ra/lWNIC5H cQXdCir/PPO0yx9K+f85Xbl3af950X/sfwWMNJuy6dW6U3n7sKu4swQJ81pEwbvQ//rr amkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=N4tk1Bevx+jHiB4szN/k2Lq1XHl7fOtbHhHNJ2QDs2k=; b=oR09WBZZ6UiqAaLpCPagfZAK9tDSAV8BS3bEAQtv+1J7qxfeItXL5v+QPwPqUJ30Jg cOM04HO6jynmRxq4w2+4jhIHCTKkZk4JHRvJ8y5WR1+PxCQ42+TK0NdPgA8gGpVt6Q5y qvTFwzmxEP0GaNToXDfE1Z/XlZ2X8ebeZJWtp+9usGQLM2HdDnGrxV+YD7dQ3Jc+oYao J7EC3jFagic0yHn7QveZeapT8dxmh1zZFzum67VVtFqMB8bxfqRUkqEi8NEruWXK+35x jJiSUpRuVM3Wcz/Y+ZjYvjsX0Ts3mLLmqgFmm0Ou4JT9ko6sUqymIUfrVouBiZCUnLtw D08Q== X-Gm-Message-State: AOAM533P2T65Ur/WVNo3iCwqFpEBz7OjBVsNZN9r+QWrtMZUsuNTN2XL Ef33pfKEukircBUhy+lDuQFrxhipwK6AdBoH X-Google-Smtp-Source: ABdhPJxrxQ/O15e7DsB06zUQeo9YSmyrKKeIAZxCSBknmLIOhegQtC1p2X7y86yeVDvfdLgC8BDcKw== X-Received: by 2002:a1c:4e0a:: with SMTP id g10mr1963590wmh.88.1608772164385; Wed, 23 Dec 2020 17:09:24 -0800 (PST) Received: from valhalla.home ([2.31.224.116]) by smtp.gmail.com with ESMTPSA id b200sm1598653wmb.10.2020.12.23.17.09.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Dec 2020 17:09:23 -0800 (PST) From: Daniel Scally To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-media@vger.kernel.org, devel@acpica.org Cc: rjw@rjwysocki.net, lenb@kernel.org, gregkh@linuxfoundation.org, yong.zhi@intel.com, sakari.ailus@linux.intel.com, bingbu.cao@intel.com, tian.shu.qiu@intel.com, mchehab@kernel.org, robert.moore@intel.com, erik.kaneda@intel.com, pmladek@suse.com, rostedt@goodmis.org, sergey.senozhatsky@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, laurent.pinchart+renesas@ideasonboard.com, jacopo+renesas@jmondi.org, kieran.bingham+renesas@ideasonboard.com, hverkuil-cisco@xs4all.nl, m.felsch@pengutronix.de, niklas.soderlund+renesas@ragnatech.se, slongerbeam@gmail.com, heikki.krogerus@linux.intel.com, linus.walleij@linaro.org, Laurent Pinchart Subject: [PATCH v3 02/14] property: Return true in fwnode_device_is_available for NULL ops Date: Thu, 24 Dec 2020 01:08:55 +0000 Message-Id: <20201224010907.263125-3-djrscally@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201224010907.263125-1-djrscally@gmail.com> References: <20201224010907.263125-1-djrscally@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Some types of fwnode_handle do not implement the device_is_available() check, such as those created by software_nodes. There isn't really a meaningful way to check for the availability of a device that doesn't actually exist, so if the check isn't implemented just assume that the "device" is present. Suggested-by: Laurent Pinchart Reviewed-by: Laurent Pinchart Reviewed-by: Andy Shevchenko Acked-by: Sakari Ailus Signed-off-by: Daniel Scally --- Changes in v3 - None drivers/base/property.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/base/property.c b/drivers/base/property.c index 4c43d30145c6..bc9c634df6df 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -785,9 +785,15 @@ EXPORT_SYMBOL_GPL(fwnode_handle_put); /** * fwnode_device_is_available - check if a device is available for use * @fwnode: Pointer to the fwnode of the device. + * + * For fwnode node types that don't implement the .device_is_available() + * operation, this function returns true. */ bool fwnode_device_is_available(const struct fwnode_handle *fwnode) { + if (!fwnode_has_op(fwnode, device_is_available)) + return true; + return fwnode_call_bool_op(fwnode, device_is_available); } EXPORT_SYMBOL_GPL(fwnode_device_is_available);