linux-kernel - [PATCH v2 3/9] usb: dwc3: qcom: fix gadget-only builds

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Message-Id: <20220804151001.23612-4-johan+linaro@kernel.org>
Date:   Thu,  4 Aug 2022 17:09:55 +0200
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krishna Kurapati <quic_kriskura@...cinc.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Doug Anderson <dianders@...omium.org>,
        "Matthias Kaehlcke" <mka@...omium.org>,
        Pavankumar Kondeti <quic_pkondeti@...cinc.com>,
        quic_ppratap@...cinc.com, quic_vpulyala@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: [PATCH v2 3/9] usb: dwc3: qcom: fix gadget-only builds

A recent change added a dependency to the USB host stack and broke
gadget-only builds of the driver.

Fixes: 6895ea55c385 ("usb: dwc3: qcom: Configure wakeup interrupts during suspend")
Reported-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---

Changes in v2
 - new patch

 drivers/usb/dwc3/dwc3-qcom.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index be2e3dd36440..e9364141661b 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -310,8 +310,11 @@ static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom)
 	 * currently supports only 1 port per controller. So
 	 * this is sufficient.
 	 */
+#ifdef CONFIG_USB
 	udev = usb_hub_find_child(hcd->self.root_hub, 1);
-
+#else
+	udev = NULL;
+#endif
 	if (!udev)
 		return USB_SPEED_UNKNOWN;
 
-- 
2.35.1