From patchwork Tue Jan 15 06:08:36 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Chen X-Patchwork-Id: 1974861 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id B91CF3FE1B for ; Tue, 15 Jan 2013 06:12:16 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Tuzi6-0008TB-4y; Tue, 15 Jan 2013 06:09:22 +0000 Received: from va3ehsobe002.messaging.microsoft.com ([216.32.180.12] helo=va3outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Tuzhx-0008Rl-Sz for linux-arm-kernel@lists.infradead.org; Tue, 15 Jan 2013 06:09:14 +0000 Received: from mail39-va3-R.bigfish.com (10.7.14.244) by VA3EHSOBE002.bigfish.com (10.7.40.22) with Microsoft SMTP Server id 14.1.225.23; 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Tue, 15 Jan 2013 06:09:06 +0000 Received: from localhost.localdomain (nchen-desktop.ap.freescale.net [10.192.242.40]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id r0F68cEK000665; Mon, 14 Jan 2013 23:09:00 -0700 From: Peter Chen To: , , , , , , Subject: [PATCH v2 3/4] usb: mxs-phy: add set_suspend API Date: Tue, 15 Jan 2013 14:08:36 +0800 Message-ID: <1358230117-19443-3-git-send-email-peter.chen@freescale.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1358230117-19443-1-git-send-email-peter.chen@freescale.com> References: <1358230117-19443-1-git-send-email-peter.chen@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130115_010914_082313_2C17E386 X-CRM114-Status: GOOD ( 12.20 ) X-Spam-Score: 0.4 (/) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (0.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [216.32.180.12 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: marex@denx.de, m.grzeschik@pengutronix.de, linux-doc@vger.kernel.org, matt@genesi-usa.com, devicetree-discuss@lists.ozlabs.org, linux-usb@vger.kernel.org, mkl@pengutronix.de, maxime.ripard@free-electrons.com, festevam@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org It needs to call set_suspend during USB suspend/resume Signed-off-by: Peter Chen --- drivers/usb/otg/mxs-phy.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c index 49727dd..cad16e5 100644 --- a/drivers/usb/otg/mxs-phy.c +++ b/drivers/usb/otg/mxs-phy.c @@ -84,6 +84,25 @@ static void mxs_phy_shutdown(struct usb_phy *phy) clk_disable_unprepare(mxs_phy->clk); } +static int mxs_phy_suspend(struct usb_phy *x, int suspend) +{ + struct mxs_phy *mxs_phy = to_mxs_phy(x); + + if (suspend) { + writel_relaxed(0xffffffff, x->io_priv + HW_USBPHY_PWD); + writel_relaxed(BM_USBPHY_CTRL_CLKGATE, + x->io_priv + HW_USBPHY_CTRL_SET); + clk_disable_unprepare(mxs_phy->clk); + } else { + clk_prepare_enable(mxs_phy->clk); + writel_relaxed(BM_USBPHY_CTRL_CLKGATE, + x->io_priv + HW_USBPHY_CTRL_CLR); + writel_relaxed(0, x->io_priv + HW_USBPHY_PWD); + } + + return 0; +} + static int mxs_phy_on_connect(struct usb_phy *phy, enum usb_device_speed speed) { @@ -146,6 +165,7 @@ static int mxs_phy_probe(struct platform_device *pdev) mxs_phy->phy.label = DRIVER_NAME; mxs_phy->phy.init = mxs_phy_init; mxs_phy->phy.shutdown = mxs_phy_shutdown; + mxs_phy->phy.set_suspend = mxs_phy_suspend; mxs_phy->phy.notify_connect = mxs_phy_on_connect; mxs_phy->phy.notify_disconnect = mxs_phy_on_disconnect;