From patchwork Thu Dec 17 23:43:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Scally X-Patchwork-Id: 345717 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, URIBL_BLOCKED, 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 948B5C2D0E4 for ; Thu, 17 Dec 2020 23:44:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4ED0823A60 for ; Thu, 17 Dec 2020 23:44:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732341AbgLQXoj (ORCPT ); Thu, 17 Dec 2020 18:44:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37322 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732282AbgLQXog (ORCPT ); Thu, 17 Dec 2020 18:44:36 -0500 Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E061C0617B0; Thu, 17 Dec 2020 15:43:56 -0800 (PST) Received: by mail-wm1-x32f.google.com with SMTP id e25so577361wme.0; Thu, 17 Dec 2020 15:43:55 -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=4Y7dtEvdcKPvLmik/Dt9S23LzcoiYY1794f++x+MfCQ=; b=JPrmEJbHxNUecfqssmn8/wie5GeVJTxzyA/rn6Rl4j5dA+Lp0GclYozolxTQAz9m58 HuHSCOz9dq0rYQO+kdhNjQ2Y5pBrA77mmOnDnSzLbo0RxurHLK+O9G/M2be+fgqhKlxl CrhN+wkvm31vU3J9xq+CJPtk66L172qvISTu9m6mBb32vWOS9CDLnR2XnYWXu7gQz98f 8u4FZgL89rzEpfz711/RLQ08FMkrpi9wIAcH+OYcHM0Dh7A81XYiLLX0UI4YkXlYZQzL As2eJubSy6izXowULubnqZvgwUL27qhshq+vpa/z0YJfFtBPqTcejDuTFPlx2gkcEQxO b+8Q== 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=4Y7dtEvdcKPvLmik/Dt9S23LzcoiYY1794f++x+MfCQ=; b=Q5B0n7uNG/Emwkgcz0G1p/tiELboFg2w7i/uA/1jruYgazvoj1gcr+uu8Zb3SuB+93 7ltan9bq8jgKLwGFcGZ+v9KyFk/Miqq86JxHSylZGc5e5ocXTXfwRQvtn9jOXLpVwlPV L00ZlVox9HKaV0ai/JPJzqlho2oVuFHtSulr85oK0ke2p1zNFWmGLj6jaXW3roPFicCf Np8zPI9jv1Mak22tALJL1KJbA6wT2dOGJYfoSfIJXT56K4M2sFYeXjnWLeF8/R3/WN1W hW9zy6NG6oFSZZJA+FqvrypDCNuC7yFA06/ZXBjAnft5aRn8hSH8+75vMLefkG+rlCOL otYA== X-Gm-Message-State: AOAM533Pv1qLl+K5s0XUk9aAdRUdV47b3BhIw9semWm7DSTuLd/7G+0l 5bolZFmhwChcCymwKdUrE/Vwu1GlOmxw8Kjg X-Google-Smtp-Source: ABdhPJxmzGNcdXzky8V04Y/R7C6fI9UL+BpxeY8jBfOHtNyfV7IujbyAyvSd9OUYOSgSlAgwTPjM6g== X-Received: by 2002:a1c:2188:: with SMTP id h130mr1569720wmh.176.1608248634800; Thu, 17 Dec 2020 15:43:54 -0800 (PST) Received: from valhalla.home ([2.29.208.56]) by smtp.gmail.com with ESMTPSA id o3sm1873575wrc.93.2020.12.17.15.43.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Dec 2020 15:43:54 -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, linus.walleij@linaro.org, heikki.krogerus@linux.intel.com, kitakar@gmail.com, jorhand@linux.microsoft.com, Laurent Pinchart Subject: [PATCH v2 02/12] property: Return true in fwnode_device_is_available for NULL ops Date: Thu, 17 Dec 2020 23:43:27 +0000 Message-Id: <20201217234337.1983732-3-djrscally@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201217234337.1983732-1-djrscally@gmail.com> References: <20201217234337.1983732-1-djrscally@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@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 Signed-off-by: Daniel Scally Acked-by: Sakari Ailus --- Changes in v2: - 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);