From: Benoit Goby <benoit@android.com>
Date: Tue, 18 Jan 2011 20:56:16 +0000 (-0800)
Subject: usb: host: tegra: Fix resuming low speed devices from lp0
X-Git-Tag: firefly_0821_release~9833^2~57^2~1
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=b3328e4c67b44588b4cecfde3a05b593153f91ef;p=firefly-linux-kernel-4.4.55.git

usb: host: tegra: Fix resuming low speed devices from lp0

Change-Id: I9576853bbe0fae52c5c2cfab26ce8f2017077d4e
Signed-off-by: Benoit Goby <benoit@android.com>
---

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 2341904808bc..db61c60ffbab 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -265,7 +265,7 @@ static int tegra_usb_resume(struct usb_hcd *hcd)
 		goto restart;
 	}
 
-	tegra_ehci_phy_restore_start(tegra->phy);
+	tegra_ehci_phy_restore_start(tegra->phy, context->port_speed);
 
 	/* Check if the phy resume from LP0. When the phy resume from LP0
 	 * USB register will be reset. */
@@ -341,10 +341,13 @@ static int tegra_usb_resume(struct usb_hcd *hcd)
 	}
 
 	tegra_ehci_phy_restore_end(tegra->phy);
+
 	return 0;
 
 restart:
-	tegra_ehci_phy_restore_end(tegra->phy);
+	if (context->valid)
+		tegra_ehci_phy_restore_end(tegra->phy);
+
 	tegra_ehci_restart(hcd);
 	return 0;
 }