From patchwork Fri Jan 18 12:17:20 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 2001811 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 474863FED4 for ; Fri, 18 Jan 2013 12:27:19 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TwAzt-0002y6-NU; Fri, 18 Jan 2013 12:24:37 +0000 Received: from bear.ext.ti.com ([192.94.94.41]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TwAtl-0006Jl-Cd for linux-arm-kernel@lists.infradead.org; Fri, 18 Jan 2013 12:18:19 +0000 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r0ICIDFu020791; Fri, 18 Jan 2013 06:18:13 -0600 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0ICIDWo003729; Fri, 18 Jan 2013 06:18:13 -0600 Received: from dlelxv22.itg.ti.com (172.17.1.197) by dfle72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.1.323.3; Fri, 18 Jan 2013 06:18:12 -0600 Received: from rockdesk.itg.ti.com (h0-82.vpn.ti.com [172.24.0.82]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r0ICHPsA027831; Fri, 18 Jan 2013 06:18:10 -0600 From: Roger Quadros To: , , Subject: [PATCH v8 17/22] mfd: omap-usb-host: Get rid of unnecessary spinlock Date: Fri, 18 Jan 2013 14:17:20 +0200 Message-ID: <1358511445-26656-18-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1358511445-26656-1-git-send-email-rogerq@ti.com> References: <1358511445-26656-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130118_071817_980856_7E2E995A X-CRM114-Status: GOOD ( 12.08 ) X-Spam-Score: -4.6 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [192.94.94.41 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: linux@arm.linux.org.uk, sshtylyov@mvista.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, kishon@ti.com, linux-arm-kernel@lists.infradead.org, bjorn@mork.no, rogerq@ti.com 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 The driver does not have an interrupt handler and we don't really need a spinlock, so get rid of it. Signed-off-by: Roger Quadros Reviewed-by: Felipe Balbi --- drivers/mfd/omap-usb-host.c | 16 ---------------- 1 files changed, 0 insertions(+), 16 deletions(-) diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index d9a242b..fcace6f 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include @@ -108,7 +107,6 @@ struct usbhs_hcd_omap { struct usbhs_omap_platform_data *pdata; u32 usbhs_rev; - spinlock_t lock; }; /*-------------------------------------------------------------------------*/ @@ -276,13 +274,11 @@ static int usbhs_runtime_resume(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); struct usbhs_omap_platform_data *pdata = omap->pdata; - unsigned long flags; int i, r; dev_dbg(dev, "usbhs_runtime_resume\n"); omap_tll_enable(); - spin_lock_irqsave(&omap->lock, flags); if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) clk_enable(omap->ehci_logic_fck); @@ -324,8 +320,6 @@ static int usbhs_runtime_resume(struct device *dev) } } - spin_unlock_irqrestore(&omap->lock, flags); - return 0; } @@ -333,13 +327,10 @@ static int usbhs_runtime_suspend(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); struct usbhs_omap_platform_data *pdata = omap->pdata; - unsigned long flags; int i; dev_dbg(dev, "usbhs_runtime_suspend\n"); - spin_lock_irqsave(&omap->lock, flags); - for (i = 0; i < omap->nports; i++) { switch (pdata->port_mode[i]) { case OMAP_EHCI_PORT_MODE_HSIC: @@ -362,7 +353,6 @@ static int usbhs_runtime_suspend(struct device *dev) if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) clk_disable(omap->ehci_logic_fck); - spin_unlock_irqrestore(&omap->lock, flags); omap_tll_disable(); return 0; @@ -372,7 +362,6 @@ static void omap_usbhs_init(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); struct usbhs_omap_platform_data *pdata = omap->pdata; - unsigned long flags; unsigned reg; dev_dbg(dev, "starting TI HSUSB Controller\n"); @@ -391,7 +380,6 @@ static void omap_usbhs_init(struct device *dev) } pm_runtime_get_sync(dev); - spin_lock_irqsave(&omap->lock, flags); reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG); /* setup ULPI bypass and burst configurations */ @@ -454,8 +442,6 @@ static void omap_usbhs_init(struct device *dev) usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg); dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg); - spin_unlock_irqrestore(&omap->lock, flags); - pm_runtime_put_sync(dev); if (pdata->phy_reset) { /* Hold the PHY in RESET for enough time till @@ -521,8 +507,6 @@ static int usbhs_omap_probe(struct platform_device *pdev) return -EADDRNOTAVAIL; } - spin_lock_init(&omap->lock); - omap->pdata = pdata; pm_runtime_enable(dev);