From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alan Stern , Felipe Balbi Subject: [PATCH 3.16 141/357] usb: dwc3: core: fix ordering for PHY suspend Date: Fri, 3 Oct 2014 14:28:47 -0700 Message-Id: <20141003212937.713803871@linuxfoundation.org> In-Reply-To: <20141003212933.458851516@linuxfoundation.org> References: <20141003212933.458851516@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felipe Balbi 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 Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -786,15 +786,16 @@ static int dwc3_remove(struct platform_d { struct dwc3 *dwc = platform_get_drvdata(pdev); + dwc3_debugfs_exit(dwc); + dwc3_core_exit_mode(dwc); + 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); phy_power_off(dwc->usb2_generic_phy); phy_power_off(dwc->usb3_generic_phy); - dwc3_debugfs_exit(dwc); - dwc3_core_exit_mode(dwc); - dwc3_event_buffers_cleanup(dwc); - dwc3_free_event_buffers(dwc); dwc3_core_exit(dwc); pm_runtime_put_sync(&pdev->dev);