From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752150AbdF2FZc (ORCPT ); Thu, 29 Jun 2017 01:25:32 -0400 Received: from lelnx193.ext.ti.com ([198.47.27.77]:63776 "EHLO lelnx193.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751597AbdF2FZZ (ORCPT ); Thu, 29 Jun 2017 01:25:25 -0400 From: Vignesh R To: Felipe Balbi CC: Greg Kroah-Hartman , , , , Vignesh R , Tony Lindgren , Carlos Hernandez Subject: [linux-next][PATCH] usb: dwc3: core: Call dwc3_core_get_phy() before initializing phys Date: Thu, 29 Jun 2017 10:55:14 +0530 Message-ID: <20170629052514.12560-1-vigneshr@ti.com> X-Mailer: git-send-email 2.13.0 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org commit f54edb539c116 ("usb: dwc3: core: initialize ULPI before trying to get the PHY") moved call to dwc3_core_get_phy() from dwc3_probe() to dwc3_core_init() after dwc3_core_soft_reset(). But dwc3_core_soft_reset() calls phy_init(), therefore dwc3_core_get_phy() needs to be called before dwc3_core_soft_reset(). Fix this by moving call to dwc3_core_get_phy() before dwc3_core_soft_reset(). This fixes the following abort seen on DRA7xx platforms [ 24.769118] usb usb2: SerialNumber: xhci-hcd.1.auto [ 24.781144] hub 2-0:1.0: USB hub found [ 24.787836] hub 2-0:1.0: 1 port detected [ 24.809939] Unhandled fault: imprecise external abort (0x1406) at 0x00000000 Reported-by: Carlos Hernandez Signed-off-by: Vignesh R --- drivers/usb/dwc3/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 326b302fc440..03474d3575ab 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -766,15 +766,15 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc->maximum_speed = USB_SPEED_HIGH; } - ret = dwc3_core_soft_reset(dwc); + ret = dwc3_core_get_phy(dwc); if (ret) goto err0; - ret = dwc3_phy_setup(dwc); + ret = dwc3_core_soft_reset(dwc); if (ret) goto err0; - ret = dwc3_core_get_phy(dwc); + ret = dwc3_phy_setup(dwc); if (ret) goto err0; -- 2.13.0