[PATCH 1/2] usb: dwc3: qcom: only parse 'maximum-speed' once

[Johan Hovold <johan+linaro@kernel.org>]

Add a temporary variable to the interconnect-initialisation helper to
avoid parsing and decoding the 'maximum-speed' devicetree property
twice.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/usb/dwc3/dwc3-qcom.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 6814861bed6c..196efa9f2545 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -243,6 +243,7 @@ static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom)
  */
 static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)
 {
+	enum usb_device_speed max_speed;
 	struct device *dev = qcom->dev;
 	int ret;
 
@@ -263,8 +264,8 @@ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)
 		return PTR_ERR(qcom->icc_path_apps);
 	}
 
-	if (usb_get_maximum_speed(&qcom->dwc3->dev) >= USB_SPEED_SUPER ||
-			usb_get_maximum_speed(&qcom->dwc3->dev) == USB_SPEED_UNKNOWN)
+	max_speed = usb_get_maximum_speed(&qcom->dwc3->dev);
+	if (max_speed >= USB_SPEED_SUPER || max_speed == USB_SPEED_UNKNOWN)
 		ret = icc_set_bw(qcom->icc_path_ddr,
 			USB_MEMORY_AVG_SS_BW, USB_MEMORY_PEAK_SS_BW);
 	else
-- 
2.35.1