From patchwork Wed Mar 20 18:49:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 10862445 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3C1411390 for ; Wed, 20 Mar 2019 18:51:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 21C3A29C68 for ; Wed, 20 Mar 2019 18:51:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 15D0829E17; Wed, 20 Mar 2019 18:51:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ABA0129C68 for ; Wed, 20 Mar 2019 18:51:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727365AbfCTSur (ORCPT ); Wed, 20 Mar 2019 14:50:47 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:45010 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727062AbfCTSuo (ORCPT ); Wed, 20 Mar 2019 14:50:44 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3ED081BC0; Wed, 20 Mar 2019 11:50:44 -0700 (PDT) Received: from en101.cambridge.arm.com (en101.cambridge.arm.com [10.1.196.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B98463F59C; Wed, 20 Mar 2019 11:50:42 -0700 (PDT) From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, coresight@lists.linaro.org, mike.leach@linaro.org, robert.walker@arm.com, Suzuki K Poulose , Mathieu Poirier Subject: [PATCH 20/25] coresight: platform: Use fwnode handle for device search Date: Wed, 20 Mar 2019 18:49:37 +0000 Message-Id: <1553107783-3340-21-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1553107783-3340-1-git-send-email-suzuki.poulose@arm.com> References: <1553107783-3340-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We match of_node while searching for a device. Make this more generic in preparation for the ACPI support by using fwnode_handle. Cc: Mathieu Poirier Signed-off-by: Suzuki K Poulose --- drivers/hwtracing/coresight/coresight-platform.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c index 93b6c87..877ed2b 100644 --- a/drivers/hwtracing/coresight/coresight-platform.c +++ b/drivers/hwtracing/coresight/coresight-platform.c @@ -31,14 +31,13 @@ static int coresight_alloc_conns(struct device *dev, return 0; } -#ifdef CONFIG_OF -static int of_dev_node_match(struct device *dev, void *data) +static int coresight_fwnode_handle_match(struct device *dev, void *data) { - return dev->of_node == data; + return dev_fwnode(dev) == data; } static struct device * -of_coresight_get_endpoint_device(struct device_node *endpoint) +coresight_find_device_by_fwnode(struct fwnode_handle *fwnode) { struct device *dev = NULL; @@ -47,7 +46,7 @@ of_coresight_get_endpoint_device(struct device_node *endpoint) * platform bus. */ dev = bus_find_device(&platform_bus_type, NULL, - endpoint, of_dev_node_match); + fwnode, coresight_fwnode_handle_match); if (dev) return dev; @@ -56,9 +55,10 @@ of_coresight_get_endpoint_device(struct device_node *endpoint) * looking for the device that matches the endpoint node. */ return bus_find_device(&amba_bustype, NULL, - endpoint, of_dev_node_match); + fwnode, coresight_fwnode_handle_match); } +#ifdef CONFIG_OF static inline bool of_coresight_legacy_ep_is_input(struct device_node *ep) { return of_property_read_bool(ep, "slave-mode"); @@ -186,6 +186,7 @@ static int of_coresight_parse_endpoint(struct device *dev, struct device_node *rparent = NULL; struct device_node *rep = NULL; struct device *rdev = NULL; + struct fwnode_handle *rdev_fwnode; do { /* Parse the local port details */ @@ -204,8 +205,9 @@ static int of_coresight_parse_endpoint(struct device *dev, if (of_graph_parse_endpoint(rep, &rendpoint)) break; + rdev_fwnode = of_fwnode_handle(rparent); /* If the remote device is not available, defer probing */ - rdev = of_coresight_get_endpoint_device(rparent); + rdev = coresight_find_device_by_fwnode(rdev_fwnode); if (!rdev) { ret = -EPROBE_DEFER; break;