From patchwork Thu Dec 10 09:17:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 11963951 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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 E4D11C4167B for ; Thu, 10 Dec 2020 09:20:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9497423C43 for ; Thu, 10 Dec 2020 09:20:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388977AbgLJJTn (ORCPT ); Thu, 10 Dec 2020 04:19:43 -0500 Received: from ns2.baikalchip.ru ([94.125.187.42]:36928 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2388889AbgLJJTh (ORCPT ); Thu, 10 Dec 2020 04:19:37 -0500 From: Serge Semin To: Felipe Balbi , Krzysztof Kozlowski , Florian Fainelli , Rob Herring , Greg Kroah-Hartman , Andy Gross , Bjorn Andersson CC: Serge Semin , Serge Semin , , , , Subject: [PATCH v4 09/10] usb: dwc3: qcom: Detect DWC3 DT-nodes with "usb"-prefixed names Date: Thu, 10 Dec 2020 12:17:54 +0300 Message-ID: <20201210091756.18057-10-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20201210091756.18057-1-Sergey.Semin@baikalelectronics.ru> References: <20201210091756.18057-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In accordance with the USB HCD/DRD schema all the USB controllers are supposed to have DT-nodes named with prefix "^usb(@.*)?". Since the existing DT-nodes will be renamed in a subsequent patch let's first make sure the DWC3 Qualcomm driver supports them and second falls back to the deprecated naming so not to fail on the legacy DTS-files passed to the newer kernels. Signed-off-by: Serge Semin Reviewed-by: Bjorn Andersson --- drivers/usb/dwc3/dwc3-qcom.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index c703d552bbcf..49ad8d507d37 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -630,7 +630,8 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) struct device *dev = &pdev->dev; int ret; - dwc3_np = of_get_child_by_name(np, "dwc3"); + dwc3_np = of_get_child_by_name(np, "usb") ?: + of_get_child_by_name(np, "dwc3"); if (!dwc3_np) { dev_err(dev, "failed to find dwc3 core child\n"); return -ENODEV;