From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3FF6C83030 for ; Thu, 3 Jul 2025 22:21:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=q3Fs+FI8nKUbkSPnfF+C1Vd7WakoexD0IrqitTstL+w=; b=WnZk+BdrG3AqFSxblsbKc5a7vj JdlawxIKoVzWlG4m9US2b265XzeJ4Pe5T0otDwnJK4HG87Nt5t4MHR2gRH3RgNo7RVSufU1mZIase EEGvcHUOM0cU5R50up4hAhJX8pUtU/uaxzAFk8JH7ZODS5x2+LZJzNxyB5AqYjVPAwz8MHWcI+OiT eWUIJMnyUsK1i12A40sdK8k4JaYXGWd8yW/i+RwbfSi7N/dnRrlpC6B7yxkVwzNKtn/x7UwKGQiRV 1GlEE1+8OSi+1mwfsSKGkSdFH3i3iA7BqcBBTuQutKdKgwybYzVBjvQwUlUlszzV8vK0UqFPhznmG aBepZubg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uXSJB-0000000CiDG-1W95; Thu, 03 Jul 2025 22:21:33 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uXOmX-0000000CFay-0fnB for linux-arm-kernel@lists.infradead.org; Thu, 03 Jul 2025 18:35:38 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id DCFDA448EB; Thu, 3 Jul 2025 18:35:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87C6FC4CEEB; Thu, 3 Jul 2025 18:35:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751567736; bh=4IQJmfRPn5wOvf8eRJE9LC5lIdjzqxsiARifvlsXhAk=; h=From:To:Cc:Subject:Date:From; b=l5PR6d7ij5o2bBnv3i4c24V4q+HIAjYLh8cszOeCWYjKOpgo79o6h5WGPGnTDygOH yC3XzD7djv814c0IMAcvcPSBvtTEt0cAc2+0+qQCXyJ+J8qweyrqKeVsuVxnimTs8b Zo5+AuLmBPopJ1DBv+2vcFWhvKowclDkkjEPJmPu8+AURPigEHktPShNgkVQyC8W4q etaA28PNFdeHpmTibqbndNc+6tFSft3fyuQZxVVfwMhexKN3COovYk9onNeqZ7JoYe TbUU92VGOj3rrchpEMeWYpj1vlmSGolyHJFn4/sMeVvnj3TPw0vYg0+hN6h74DAlPC pVv96QlPCJAcQ== From: "Rob Herring (Arm)" To: Suzuki K Poulose , Mike Leach , James Clark , Alexander Shishkin Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] hwtracing: coresight: Use of_reserved_mem_region_to_resource() for "memory-region" Date: Thu, 3 Jul 2025 13:35:33 -0500 Message-ID: <20250703183534.2075569-1-robh@kernel.org> X-Mailer: git-send-email 2.47.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250703_113537_217907_492093D1 X-CRM114-Status: GOOD ( 13.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use the newly added of_reserved_mem_region_to_resource() function to handle "memory-region" properties. Signed-off-by: Rob Herring (Arm) --- .../hwtracing/coresight/coresight-tmc-core.c | 22 +++++-------------- 1 file changed, 6 insertions(+), 16 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-tmc-core.c b/drivers/hwtracing/coresight/coresight-tmc-core.c index 88afb16bb6be..be964656be93 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-core.c +++ b/drivers/hwtracing/coresight/coresight-tmc-core.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -634,25 +635,14 @@ static int of_tmc_get_reserved_resource_by_name(struct device *dev, const char *name, struct resource *res) { - int index, rc = -ENODEV; - struct device_node *node; + int rc = -ENODEV; - if (!is_of_node(dev->fwnode)) - return -ENODEV; - - index = of_property_match_string(dev->of_node, "memory-region-names", - name); - if (index < 0) - return rc; - - node = of_parse_phandle(dev->of_node, "memory-region", index); - if (!node) + rc = of_reserved_mem_region_to_resource_byname(dev->of_node, name, res); + if (rc < 0) return rc; - if (!of_address_to_resource(node, 0, res) && - res->start != 0 && resource_size(res) != 0) - rc = 0; - of_node_put(node); + if (res->start == 0 || resource_size(res) == 0) + rc = -ENODEV; return rc; } -- 2.47.2