From patchwork Wed Mar 6 09:56:32 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Chen X-Patchwork-Id: 2224151 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id A4DDCDF23A for ; Wed, 6 Mar 2013 10:01:17 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UDB64-0004ls-HR; Wed, 06 Mar 2013 09:57:16 +0000 Received: from co1ehsobe005.messaging.microsoft.com ([216.32.180.188] helo=co1outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UDB5r-0004kJ-NK for linux-arm-kernel@lists.infradead.org; Wed, 06 Mar 2013 09:57:05 +0000 Received: from mail109-co1-R.bigfish.com (10.243.78.241) by CO1EHSOBE036.bigfish.com (10.243.66.101) with Microsoft SMTP Server id 14.1.225.23; Wed, 6 Mar 2013 09:57:01 +0000 Received: from mail109-co1 (localhost [127.0.0.1]) by mail109-co1-R.bigfish.com (Postfix) with ESMTP id 8C3F86000AC; Wed, 6 Mar 2013 09:57:01 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1f42h1ee6h1de0h1202h1e76h1d1ah1d2ahzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h1354h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1155h) Received: from mail109-co1 (localhost.localdomain [127.0.0.1]) by mail109-co1 (MessageSwitch) id 1362563819413550_8026; Wed, 6 Mar 2013 09:56:59 +0000 (UTC) Received: from CO1EHSMHS005.bigfish.com (unknown [10.243.78.245]) by mail109-co1.bigfish.com (Postfix) with ESMTP id 5FF7A16004E; Wed, 6 Mar 2013 09:56:59 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO1EHSMHS005.bigfish.com (10.243.66.15) with Microsoft SMTP Server (TLS) id 14.1.225.23; Wed, 6 Mar 2013 09:56:59 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.2.328.11; Wed, 6 Mar 2013 09:56:53 +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 r269ufOA006808; Wed, 6 Mar 2013 02:56:49 -0700 From: Peter Chen To: Subject: [PATCH v11 1/9] Revert "USB: chipidea: add vbus detect for udc" Date: Wed, 6 Mar 2013 17:56:32 +0800 Message-ID: <1362563800-16673-2-git-send-email-peter.chen@freescale.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1362563800-16673-1-git-send-email-peter.chen@freescale.com> References: <1362563800-16673-1-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-20130306_045703_985104_9E7E14B1 X-CRM114-Status: GOOD ( 12.22 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [216.32.180.188 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: marex@denx.de, m.grzeschik@pengutronix.de, gregkh@linuxfoundation.org, pkondeti@codeaurora.org, linux-usb@vger.kernel.org, balbi@ti.com, mkl@pengutronix.de, kernel@pengutronix.de, matt@genesi-usa.com, shawn.guo@linaro.org, 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 vbus register is at otgsc, and vbus detect does not belong to device function. Revert this patch, and will move vbus detect function to drivers/usb/chipidea/udc.c This reverts commit 8c4fc031954b4eb72daf13d3c907a985a3eee208. Signed-off-by: Peter Chen --- drivers/usb/chipidea/ci.h | 1 - drivers/usb/chipidea/udc.c | 39 +-------------------------------------- 2 files changed, 1 insertions(+), 39 deletions(-) diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index e25d126..d738603 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -139,7 +139,6 @@ struct ci13xxx { enum ci_role role; bool is_otg; struct work_struct work; - struct work_struct vbus_work; struct workqueue_struct *wq; struct dma_pool *qh_pool; diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 2f45bba..d214448 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -305,18 +305,6 @@ static u32 hw_test_and_clear_intr_active(struct ci13xxx *ci) return reg; } -static void hw_enable_vbus_intr(struct ci13xxx *ci) -{ - hw_write(ci, OP_OTGSC, OTGSC_AVVIS, OTGSC_AVVIS); - hw_write(ci, OP_OTGSC, OTGSC_AVVIE, OTGSC_AVVIE); - queue_work(ci->wq, &ci->vbus_work); -} - -static void hw_disable_vbus_intr(struct ci13xxx *ci) -{ - hw_write(ci, OP_OTGSC, OTGSC_AVVIE, 0); -} - /** * hw_test_and_clear_setup_guard: test & clear setup guard (execute without * interruption) @@ -383,16 +371,6 @@ static int hw_usb_reset(struct ci13xxx *ci) return 0; } -static void vbus_work(struct work_struct *work) -{ - struct ci13xxx *ci = container_of(work, struct ci13xxx, vbus_work); - - if (hw_read(ci, OP_OTGSC, OTGSC_AVV)) - usb_gadget_vbus_connect(&ci->gadget); - else - usb_gadget_vbus_disconnect(&ci->gadget); -} - /****************************************************************************** * UTIL block *****************************************************************************/ @@ -1392,7 +1370,6 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active) if (is_active) { pm_runtime_get_sync(&_gadget->dev); hw_device_reset(ci, USBMODE_CM_DC); - hw_enable_vbus_intr(ci); hw_device_state(ci, ci->ep0out->qh.dma); } else { hw_device_state(ci, 0); @@ -1567,10 +1544,8 @@ static int ci13xxx_start(struct usb_gadget *gadget, pm_runtime_get_sync(&ci->gadget.dev); if (ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) { if (ci->vbus_active) { - if (ci->platdata->flags & CI13XXX_REGS_SHARED) { + if (ci->platdata->flags & CI13XXX_REGS_SHARED) hw_device_reset(ci, USBMODE_CM_DC); - hw_enable_vbus_intr(ci); - } } else { pm_runtime_put_sync(&ci->gadget.dev); goto done; @@ -1676,13 +1651,6 @@ static irqreturn_t udc_irq(struct ci13xxx *ci) } else { retval = IRQ_NONE; } - - intr = hw_read(ci, OP_OTGSC, ~0); - hw_write(ci, OP_OTGSC, ~0, intr); - - if (intr & (OTGSC_AVVIE & OTGSC_AVVIS)) - queue_work(ci->wq, &ci->vbus_work); - spin_unlock(&ci->lock); return retval; @@ -1758,7 +1726,6 @@ static int udc_start(struct ci13xxx *ci) retval = hw_device_reset(ci, USBMODE_CM_DC); if (retval) goto put_transceiver; - hw_enable_vbus_intr(ci); } retval = device_register(&ci->gadget.dev); @@ -1821,9 +1788,6 @@ static void udc_stop(struct ci13xxx *ci) if (ci == NULL) return; - hw_disable_vbus_intr(ci); - cancel_work_sync(&ci->vbus_work); - usb_del_gadget_udc(&ci->gadget); destroy_eps(ci); @@ -1864,7 +1828,6 @@ int ci_hdrc_gadget_init(struct ci13xxx *ci) rdrv->irq = udc_irq; rdrv->name = "gadget"; ci->roles[CI_ROLE_GADGET] = rdrv; - INIT_WORK(&ci->vbus_work, vbus_work); return 0; }