[RFT PATCH v2 1/4] usb: dwc2: gadget: Only initialize device if in device mode

From	John Youn <johnyoun@synopsys.com>
Newsgroups	linux.kernel
Subject	[RFT PATCH v2 1/4] usb: dwc2: gadget: Only initialize device if in device mode
Date	2016-08-25 01:30 +0200
Message-ID	<s9PMn-17y-39@gated-at.bofh.it> (permalink)
References	<s9PMm-17y-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

In dwc2_hsotg_udc_start(), don't initialize the controller for device
mode unless we are actually in device mode.

Signed-off-by: John Youn <johnyoun@synopsys.com>
---
 drivers/usb/dwc2/gadget.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index af46adf..358ba5a 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3475,8 +3475,11 @@ static int dwc2_hsotg_udc_start(struct usb_gadget *gadget,
 		otg_set_peripheral(hsotg->uphy->otg, &hsotg->gadget);
 
 	spin_lock_irqsave(&hsotg->lock, flags);
-	dwc2_hsotg_init(hsotg);
-	dwc2_hsotg_core_init_disconnected(hsotg, false);
+	if (dwc2_hw_is_device(hsotg)) {
+		dwc2_hsotg_init(hsotg);
+		dwc2_hsotg_core_init_disconnected(hsotg, false);
+	}
+
 	hsotg->enabled = 0;
 	spin_unlock_irqrestore(&hsotg->lock, flags);
 
-- 
2.9.0

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[RFT PATCH v2 1/4] usb: dwc2: gadget: Only initialize device if in device mode John Youn <johnyoun@synopsys.com> - 2016-08-25 01:30 +0200

csiph-web