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[104.57.184.186]) by smtp.gmail.com with ESMTPSA id u25sm67993otg.40.2021.02.02.15.02.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Feb 2021 15:02:10 -0800 (PST) Date: Tue, 2 Feb 2021 17:02:08 -0600 From: Bjorn Andersson To: Serge Semin Cc: Felipe Balbi , Krzysztof Kozlowski , Florian Fainelli , Rob Herring , Greg Kroah-Hartman , Andy Gross , Serge Semin , linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 09/10] usb: dwc3: qcom: Detect DWC3 DT-nodes with "usb"-prefixed names Message-ID: References: <20201205155621.3045-1-Sergey.Semin@baikalelectronics.ru> <20201205155621.3045-10-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201205155621.3045-10-Sergey.Semin@baikalelectronics.ru> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Sat 05 Dec 09:56 CST 2020, Serge Semin wrote: > 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. > Felipe, will you merge this, so that I can merge the dts patch depending on this into the Qualcomm DT tree? Regards, Bjorn > 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; > -- > 2.29.2 >