From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933341AbcDKOMt (ORCPT ); Mon, 11 Apr 2016 10:12:49 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:52134 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933185AbcDKOMp (ORCPT ); Mon, 11 Apr 2016 10:12:45 -0400 From: Roger Quadros To: CC: , , , , Roger Quadros Subject: [PATCH 2/2] usb: dwc3: core: fix PHY handling during suspend Date: Mon, 11 Apr 2016 17:12:34 +0300 Message-ID: <1460383954-3240-3-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1460383954-3240-1-git-send-email-rogerq@ti.com> References: <1460383954-3240-1-git-send-email-rogerq@ti.com> 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 From: Felipe Balbi we need to power off the PHY during suspend and power it back on during resume. Signed-off-by: Felipe Balbi [nsekhar@ti.com: fix call to usb_phy_set_suspend() in dwc3_suspend()] Signed-off-by: Sekhar Nori Signed-off-by: Roger Quadros --- drivers/usb/dwc3/core.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 17fd8144..44ff68e 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1162,6 +1162,11 @@ static int dwc3_suspend(struct device *dev) phy_exit(dwc->usb2_generic_phy); phy_exit(dwc->usb3_generic_phy); + usb_phy_set_suspend(dwc->usb2_phy, 1); + usb_phy_set_suspend(dwc->usb3_phy, 1); + WARN_ON(phy_power_off(dwc->usb2_generic_phy) < 0); + WARN_ON(phy_power_off(dwc->usb3_generic_phy) < 0); + pinctrl_pm_select_sleep_state(dev); return 0; @@ -1175,11 +1180,21 @@ static int dwc3_resume(struct device *dev) pinctrl_pm_select_default_state(dev); + usb_phy_set_suspend(dwc->usb2_phy, 0); + usb_phy_set_suspend(dwc->usb3_phy, 0); + ret = phy_power_on(dwc->usb2_generic_phy); + if (ret < 0) + return ret; + + ret = phy_power_on(dwc->usb3_generic_phy); + if (ret < 0) + goto err_usb2phy_power; + usb_phy_init(dwc->usb3_phy); usb_phy_init(dwc->usb2_phy); ret = phy_init(dwc->usb2_generic_phy); if (ret < 0) - return ret; + goto err_usb3phy_power; ret = phy_init(dwc->usb3_generic_phy); if (ret < 0) @@ -1212,6 +1227,12 @@ static int dwc3_resume(struct device *dev) err_usb2phy_init: phy_exit(dwc->usb2_generic_phy); +err_usb3phy_power: + phy_power_off(dwc->usb3_generic_phy); + +err_usb2phy_power: + phy_power_off(dwc->usb2_generic_phy); + return ret; } -- 2.5.0