From patchwork Mon Mar 3 08:41:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Chen X-Patchwork-Id: 3753541 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 12F37BF13A for ; Mon, 3 Mar 2014 11:02:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1D7AA2039E for ; Mon, 3 Mar 2014 11:02:44 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 987FA20397 for ; Mon, 3 Mar 2014 11:02:42 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WKPLi-0000Gh-4J; 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Mon, 3 Mar 2014 09:39:05 +0000 (UTC) Received: from AM1EHSMHS021.bigfish.com (unknown [10.3.201.233]) by mail83-am1.bigfish.com (Postfix) with ESMTP id D842A220115; Mon, 3 Mar 2014 09:39:05 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by AM1EHSMHS021.bigfish.com (10.3.207.150) with Microsoft SMTP Server (TLS) id 14.16.227.3; Mon, 3 Mar 2014 09:39:05 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-001.039d.mgd.msft.net (10.84.1.13) with Microsoft SMTP Server (TLS) id 14.3.158.2; Mon, 3 Mar 2014 09:39:03 +0000 Received: from shlinux1.ap.freescale.net (shlinux1.ap.freescale.net [10.192.225.216]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id s239cl36032176; Mon, 3 Mar 2014 02:38:58 -0700 From: Peter Chen To: , , , , , Subject: [PATCH v12 02/15] usb: phy-mxs: Add platform judgement code Date: Mon, 3 Mar 2014 16:41:45 +0800 Message-ID: <1393836118-4265-3-git-send-email-peter.chen@freescale.com> X-Mailer: git-send-email 1.7.8 In-Reply-To: <1393836118-4265-1-git-send-email-peter.chen@freescale.com> References: <1393836118-4265-1-git-send-email-peter.chen@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%0$Dn%FREESCALE.MAIL.ONMICROSOFT.COM$RO%1$TLS%0$FQDN%$TlsDn% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140303_043930_444079_2AC3DDAE X-CRM114-Status: GOOD ( 13.74 ) X-Spam-Score: 1.4 (+) Cc: marex@denx.de, devicetree@vger.kernel.org, m.grzeschik@pengutronix.de, frank.li@freescale.com, linux-doc@vger.kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, peter.chen@freescale.com, kernel@pengutronix.de, festevam@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=0.1 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY, UNRESOLVED_TEMPLATE autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The mxs-phy has several bugs and features at different versions, the driver code can get it through of_device_id.data. Signed-off-by: Peter Chen --- drivers/usb/phy/phy-mxs-usb.c | 58 ++++++++++++++++++++++++++++++++++------ 1 files changed, 49 insertions(+), 9 deletions(-) diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index b42897b..cf58d8e 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -1,5 +1,5 @@ /* - * Copyright 2012 Freescale Semiconductor, Inc. + * Copyright 2012-2013 Freescale Semiconductor, Inc. * Copyright (C) 2012 Marek Vasut * on behalf of DENX Software Engineering GmbH * @@ -20,6 +20,7 @@ #include #include #include +#include #define DRIVER_NAME "mxs_phy" @@ -34,13 +35,55 @@ #define BM_USBPHY_CTRL_ENUTMILEVEL2 BIT(14) #define BM_USBPHY_CTRL_ENHOSTDISCONDETECT BIT(1) +#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy) + +/* Do disconnection between PHY and controller without vbus */ +#define MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS BIT(0) + +/* + * The PHY will be in messy if there is a wakeup after putting + * bus to suspend (set portsc.suspendM) but before setting PHY to low + * power mode (set portsc.phcd). + */ +#define MXS_PHY_ABNORMAL_IN_SUSPEND BIT(1) + +/* + * The SOF sends too fast after resuming, it will cause disconnection + * between host and high speed device. + */ +#define MXS_PHY_SENDING_SOF_TOO_FAST BIT(2) + +struct mxs_phy_data { + unsigned int flags; +}; + +static const struct mxs_phy_data imx23_phy_data = { + .flags = MXS_PHY_ABNORMAL_IN_SUSPEND | MXS_PHY_SENDING_SOF_TOO_FAST, +}; + +static const struct mxs_phy_data imx6q_phy_data = { + .flags = MXS_PHY_SENDING_SOF_TOO_FAST | + MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS, +}; + +static const struct mxs_phy_data imx6sl_phy_data = { + .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS, +}; + +static const struct of_device_id mxs_phy_dt_ids[] = { + { .compatible = "fsl,imx6sl-usbphy", .data = &imx6sl_phy_data, }, + { .compatible = "fsl,imx6q-usbphy", .data = &imx6q_phy_data, }, + { .compatible = "fsl,imx23-usbphy", .data = &imx23_phy_data, }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids); + struct mxs_phy { struct usb_phy phy; struct clk *clk; + const struct mxs_phy_data *data; }; -#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy) - static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) { int ret; @@ -138,6 +181,8 @@ static int mxs_phy_probe(struct platform_device *pdev) struct clk *clk; struct mxs_phy *mxs_phy; int ret; + const struct of_device_id *of_id = + of_match_device(mxs_phy_dt_ids, &pdev->dev); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_ioremap_resource(&pdev->dev, res); @@ -168,6 +213,7 @@ static int mxs_phy_probe(struct platform_device *pdev) mxs_phy->phy.type = USB_PHY_TYPE_USB2; mxs_phy->clk = clk; + mxs_phy->data = of_id->data; platform_set_drvdata(pdev, mxs_phy); @@ -187,12 +233,6 @@ static int mxs_phy_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id mxs_phy_dt_ids[] = { - { .compatible = "fsl,imx23-usbphy", }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids); - static struct platform_driver mxs_phy_driver = { .probe = mxs_phy_probe, .remove = mxs_phy_remove,