usb: dwc3: core: fix ordering for PHY suspend
authorFelipe Balbi <balbi@ti.com>
Wed, 3 Sep 2014 21:13:37 +0000 (16:13 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 5 Oct 2014 21:54:13 +0000 (14:54 -0700)
commit dc99f16f076559235c92d3eb66d03d1310faea08 upstream.

We can't suspend the PHYs before dwc3_core_exit_mode()
has been called, that's because the host and/or device
sides might still need to communicate with the far end
link partner.

Fixes: 8ba007a (usb: dwc3: core: enable the USB2 and USB3 phy in probe)
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/dwc3/core.c

index 60ea5994e2a5ff8c369369ae7506092bdd25178b..1d386030d3c41a84ce32021535c6e0fde1c31cc1 100644 (file)
@@ -603,9 +603,6 @@ static int dwc3_remove(struct platform_device *pdev)
 {
        struct dwc3     *dwc = platform_get_drvdata(pdev);
 
-       usb_phy_set_suspend(dwc->usb2_phy, 1);
-       usb_phy_set_suspend(dwc->usb3_phy, 1);
-
        dwc3_debugfs_exit(dwc);
 
        switch (dwc->mode) {
@@ -626,6 +623,10 @@ static int dwc3_remove(struct platform_device *pdev)
 
        dwc3_event_buffers_cleanup(dwc);
        dwc3_free_event_buffers(dwc);
+
+       usb_phy_set_suspend(dwc->usb2_phy, 1);
+       usb_phy_set_suspend(dwc->usb3_phy, 1);
+
        dwc3_core_exit(dwc);
 
        pm_runtime_put_sync(&pdev->dev);