From patchwork Fri Feb 5 22:26:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 12071651 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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 0D76AC433E9 for ; Sat, 6 Feb 2021 02:45:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD8C364F91 for ; Sat, 6 Feb 2021 02:45:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230377AbhBFCoj (ORCPT ); Fri, 5 Feb 2021 21:44:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230098AbhBFCcV (ORCPT ); Fri, 5 Feb 2021 21:32:21 -0500 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2C663C03C063 for ; Fri, 5 Feb 2021 14:27:00 -0800 (PST) Received: by mail-yb1-xb49.google.com with SMTP id n81so8657508ybg.20 for ; Fri, 05 Feb 2021 14:27:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=Bw5DCGRTYuHhV6CaEDXr7VykkGUog594vA90XJtHO1Y=; b=OJ24USk8NaXzKxxqD9cIc2fuOOLVmyyzmeeBnuhX2haf4opjBLOqqJRPp0oJB2TcJy QU5VBOCElNExNGxqLUxqgYZItGUiFhRtQzb3LQdbw3Y0LZcW3LuI88Njj48rtjKPsSZ2 4F0icSi17k6dTngdFP+PaTB0cFBlMjBumwi1fy39MHFAPu/w9n8my2gcennaSg5vjErP sQRLYkA7SGqEGGXM0TBNdHDG5nonXhw92Rf6mDDQik8AxtIwTOsa++xp6SeuTGFyIXpz MAv6/0kL+jIazKDHFcWr73Ze5NFqgWo6QJFSaG2D5SJFVSY04331pMLEzlZOwVgZ2YBU uyXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=Bw5DCGRTYuHhV6CaEDXr7VykkGUog594vA90XJtHO1Y=; b=HKh1HGmfvYrLkUHlFyQv2Ct8RSyLKnvgeIRvD/B7Yc69uAVxaehv7WjjQiaKz1/AB/ ehAkBg/ibGz0rZ4xii7wgHjLfw0q2ezdpBpZC/9E+kR7G0N0dj/6ghrgygIqeGhUDqTX Ew1OWrNZo0+HfQTwEjw2lCd8G5g0pUX33F6uL+oj4CxMXZ4bxdz2F9iRRF8xGBnYRuVU SsbRojnn3K+a7nvJBTKYNIt3ybs8IRvVUG9EJSuz4ZVg/buaoesPOXBT9JZtLG23rqfO PkPF4KHmfYJ7qmhwjn2JCbKpnbhSqqAawm67KWzauRBfInvhsyBmF1JLT1Y8rZ12vHqd P2Rg== X-Gm-Message-State: AOAM5325CWNWNxaU1mk1Mg/f/pPy7g5sJryKdZYyoWBacloMg3HMVD03 NWpHbZjvsqa9HDVUnRBba6tXhJD7VLYkw6Y= X-Google-Smtp-Source: ABdhPJy8zXEis/xhZQjdQJH/U4yg9J4P3415kxIuICG74Qvlo/PkTtrQfpR8JQK+yrBlCNXAjS7e2k4VjoRZpiE= Sender: "saravanak via sendgmr" X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:6d36:b798:55d7:f5c5]) (user=saravanak job=sendgmr) by 2002:a25:e54:: with SMTP id 81mr9240781ybo.404.1612564019429; Fri, 05 Feb 2021 14:26:59 -0800 (PST) Date: Fri, 5 Feb 2021 14:26:40 -0800 In-Reply-To: <20210205222644.2357303-1-saravanak@google.com> Message-Id: <20210205222644.2357303-5-saravanak@google.com> Mime-Version: 1.0 References: <20210205222644.2357303-1-saravanak@google.com> X-Mailer: git-send-email 2.30.0.478.g8a0d178c01-goog Subject: [PATCH v4 4/8] of: property: Add fw_devlink support for optional properties From: Saravana Kannan To: Jonathan Corbet , Greg Kroah-Hartman , "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Len Brown , Len Brown , Pavel Machek , Michael Turquette , Stephen Boyd , Rob Herring , Frank Rowand , Marc Zyngier , Thomas Gleixner Cc: Saravana Kannan , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Marek Szyprowski , Geert Uytterhoeven , kernel-team@android.com Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Not all DT bindings are mandatory bindings. Add support for optional DT bindings and mark iommus, iommu-map, dmas as optional DT bindings. Signed-off-by: Saravana Kannan --- drivers/of/property.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index 53d163c8d39b..962109082df1 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1235,6 +1235,7 @@ static struct device_node *parse_##fname(struct device_node *np, \ struct supplier_bindings { struct device_node *(*parse_prop)(struct device_node *np, const char *prop_name, int index); + bool optional; }; DEFINE_SIMPLE_PROP(clocks, "clocks", "#clock-cells") @@ -1308,12 +1309,12 @@ static struct device_node *parse_interrupts(struct device_node *np, static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_clocks, }, { .parse_prop = parse_interconnects, }, - { .parse_prop = parse_iommus, }, - { .parse_prop = parse_iommu_maps, }, + { .parse_prop = parse_iommus, .optional = true, }, + { .parse_prop = parse_iommu_maps, .optional = true, }, { .parse_prop = parse_mboxes, }, { .parse_prop = parse_io_channels, }, { .parse_prop = parse_interrupt_parent, }, - { .parse_prop = parse_dmas, }, + { .parse_prop = parse_dmas, .optional = true, }, { .parse_prop = parse_power_domains, }, { .parse_prop = parse_hwlocks, }, { .parse_prop = parse_extcon, }, @@ -1368,6 +1369,11 @@ static int of_link_property(struct device_node *con_np, const char *prop_name) /* Do not stop at first failed link, link all available suppliers. */ while (!matched && s->parse_prop) { + if (s->optional && !fw_devlink_is_strict()) { + s++; + continue; + } + while ((phandle = s->parse_prop(con_np, prop_name, i))) { matched = true; i++;