[3.12,122/197] usb: dwc3: core: fix ordering for PHY suspend

Message ID 3a6e005e366f8b2e0f52e31e0b0a10ddbcc28d11.1413533329.git.jslaby@suse.cz
State New
Headers show

Commit Message

Jiri Slaby Oct. 17, 2014, 8:10 a.m.
From: Felipe Balbi <balbi@ti.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

Patch

===============

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: Jiri Slaby <jslaby@suse.cz>
---
 drivers/usb/dwc3/core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 3ff8bba6503b..6adf845fe3a0 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -581,9 +581,6 @@  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->dr_mode) {
@@ -604,6 +601,10 @@  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);