From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758893AbaJaDM7 (ORCPT ); Thu, 30 Oct 2014 23:12:59 -0400 Received: from mail-bn1on0113.outbound.protection.outlook.com ([157.56.110.113]:26559 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757694AbaJaDMz (ORCPT ); Thu, 30 Oct 2014 23:12:55 -0400 X-WSS-ID: 0NEAGXC-07-7X6-02 X-M-MSG: From: Huang Rui To: Felipe Balbi , Alan Stern , "Bjorn Helgaas" , Greg Kroah-Hartman CC: Paul Zimmerman , Heikki Krogerus , Sergei Shtylyov , Jason Chang , Vincent Wan , Tony Li , , , , , Huang Rui Subject: [PATCH v5 3/8] usb: dwc3: add disable usb2 suspend phy quirk Date: Fri, 31 Oct 2014 11:11:14 +0800 Message-ID: <1414725079-11490-4-git-send-email-ray.huang@amd.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1414725079-11490-1-git-send-email-ray.huang@amd.com> References: <1414725079-11490-1-git-send-email-ray.huang@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:165.204.84.221;CTRY:US;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(10019020)(6009001)(428002)(199003)(189002)(93916002)(50986999)(53416004)(2171001)(4396001)(46102003)(68736004)(44976005)(77096002)(48376002)(86362001)(19580395003)(80022003)(31966008)(84676001)(19580405001)(92726001)(92566001)(88136002)(77156001)(97736003)(33646002)(87936001)(87286001)(85306004)(85852003)(102836001)(229853001)(99396003)(36756003)(20776003)(95666004)(104166001)(76482002)(76176999)(106466001)(107046002)(64706001)(50466002)(62966002)(50226001)(101416001)(120916001)(89996001)(105586002)(47776003)(21056001);DIR:OUT;SFP:1102;SCL:1;SRVR:BY2PR02MB202;H:atltwp01.amd.com;FPR:;MLV:sfv;PTR:InfoDomainNonexistent;A:1;MX:1;LANG:en; X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:BY2PR02MB202; X-Forefront-PRVS: 03818C953D Authentication-Results: spf=none (sender IP is 165.204.84.221) smtp.mailfrom=Ray.Huang@amd.com; X-OriginatorOrg: amd4.onmicrosoft.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds disable usb2 suspend phy quirk, and some special platforms can configure that if it is needed. Signed-off-by: Huang Rui --- Documentation/devicetree/bindings/usb/dwc3.txt | 1 + drivers/usb/dwc3/core.c | 6 ++++++ drivers/usb/dwc3/core.h | 2 ++ drivers/usb/dwc3/platform_data.h | 1 + 4 files changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 08b394e..f200ecc 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -33,6 +33,7 @@ Optional properties: - snps,tx_de_emphasis: the value driven to the PHY is controlled by the LTSSM during USB3 Compliance mode. - snps,dis_u3_susphy_quirk: when set core will disable USB3 suspend phy. + - snps,dis_u2_susphy_quirk: when set core will disable USB2 suspend phy. This is usually a subnode to DWC3 glue to which it is connected. diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 6ec4176..25f1446 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -422,6 +422,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc) if (dwc->revision > DWC3_REVISION_194A) reg |= DWC3_GUSB2PHYCFG_SUSPHY; + if (dwc->dis_u2_susphy_quirk && dwc->is_fpga) + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); mdelay(100); @@ -812,6 +815,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,rx_detect_poll_quirk"); dwc->dis_u3_susphy_quirk = of_property_read_bool(node, "snps,dis_u3_susphy_quirk"); + dwc->dis_u2_susphy_quirk = of_property_read_bool(node, + "snps,dis_u2_susphy_quirk"); dwc->tx_de_emphasis_quirk = of_property_read_bool(node, "snps,tx_de_emphasis_quirk"); @@ -835,6 +840,7 @@ static int dwc3_probe(struct platform_device *pdev) dwc->lfps_filter_quirk = pdata->lfps_filter_quirk; dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk; dwc->dis_u3_susphy_quirk = pdata->dis_u3_susphy_quirk; + dwc->dis_u2_susphy_quirk = pdata->dis_u2_susphy_quirk; dwc->tx_de_emphasis_quirk = pdata->tx_de_emphasis_quirk; if (pdata->tx_de_emphasis) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index fa778b0..cf86d30 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -698,6 +698,7 @@ struct dwc3_scratchpad_array { * @lfps_filter_quirk: set if we enable LFPS filter quirk * @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk * @dis_u3_susphy_quirk: set if we disable usb3 suspend phy + * @dis_u2_susphy_quirk: set if we disable usb2 suspend phy * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk * @tx_de_emphasis: Tx de-emphasis value * 0 - -6dB de-emphasis @@ -820,6 +821,7 @@ struct dwc3 { unsigned lfps_filter_quirk:1; unsigned rx_detect_poll_quirk:1; unsigned dis_u3_susphy_quirk:1; + unsigned dis_u2_susphy_quirk:1; unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2; diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index 0f1d5ad..245300b 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -37,6 +37,7 @@ struct dwc3_platform_data { unsigned lfps_filter_quirk:1; unsigned rx_detect_poll_quirk:1; unsigned dis_u3_susphy_quirk:1; + unsigned dis_u2_susphy_quirk:1; unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2; -- 1.9.1