From: Vivek Gautam <gautam.vivek@samsung.com>
Date: Mon, 23 Sep 2013 03:38:28 +0000 (+0530)
Subject: usb: dwc3: Remove additional delay of 100ms when resuming
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d9681ee0812a7502838032bc5f935c2af650b036;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

usb: dwc3: Remove additional delay of 100ms when resuming

This delay got introduced in:
"7415f17 usb: dwc3: core: add power management support"
which reflected similar code in dwc3_core_soft_reset() function.
However, originally the delay of 100ms in dwc3_core_soft_reset() was
meant to assist USB2PHY and USB3PHY reset, not for usb_phy_init()
sequence.

We should get rid of this delay, since things will still work
fine without this.

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 474162e9d01d..e88ffae80cac 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -691,7 +691,6 @@ static int dwc3_resume(struct device *dev)
 
 	usb_phy_init(dwc->usb3_phy);
 	usb_phy_init(dwc->usb2_phy);
-	msleep(100);
 
 	spin_lock_irqsave(&dwc->lock, flags);