From patchwork Thu Feb 3 09:49:42 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kalliguddi, Hema" X-Patchwork-Id: 528851 X-Patchwork-Delegate: me@felipebalbi.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p139o5oP026950 for ; Thu, 3 Feb 2011 09:50:05 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756065Ab1BCJt7 (ORCPT ); Thu, 3 Feb 2011 04:49:59 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:49812 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756046Ab1BCJt6 (ORCPT ); Thu, 3 Feb 2011 04:49:58 -0500 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id p139nt7L024154 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 3 Feb 2011 03:49:58 -0600 Received: from localhost.localdomain (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id p139nrKW011653; Thu, 3 Feb 2011 15:19:55 +0530 (IST) From: Hema HK To: linux-usb@vger.kernel.org Cc: linux-omap@vger.kernel.org, Hema HK , Felipe Balbi Subject: [PATCH 2/7] usb: otg: Remove one unnecessary I2C read request. Date: Thu, 3 Feb 2011 15:19:42 +0530 Message-Id: <1296726587-10530-2-git-send-email-hemahk@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: References: Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Thu, 03 Feb 2011 09:50:05 +0000 (UTC) Index: linux-2.6/drivers/usb/otg/twl6030-usb.c =================================================================== --- linux-2.6.orig/drivers/usb/otg/twl6030-usb.c +++ linux-2.6/drivers/usb/otg/twl6030-usb.c @@ -149,7 +149,6 @@ static int twl6030_set_phy_clk(struct ot static int twl6030_phy_init(struct otg_transceiver *x) { - u8 hw_state; struct twl6030_usb *twl; struct device *dev; struct twl4030_usb_data *pdata; @@ -158,9 +157,7 @@ static int twl6030_phy_init(struct otg_t dev = twl->dev; pdata = dev->platform_data; - hw_state = twl6030_readb(twl, TWL6030_MODULE_ID0, STS_HW_CONDITIONS); - - if (hw_state & STS_USB_ID) + if (twl->linkstat == USB_EVENT_ID) pdata->phy_power(twl->dev, 1, 1); else pdata->phy_power(twl->dev, 0, 1); @@ -290,6 +287,7 @@ static irqreturn_t twl6030_usbotg_irq(in status = USB_EVENT_ID; twl->otg.default_a = true; twl->otg.state = OTG_STATE_A_IDLE; + twl->linkstat = status; blocking_notifier_call_chain(&twl->otg.notifier, status, twl->otg.gadget); } else { @@ -299,7 +297,6 @@ static irqreturn_t twl6030_usbotg_irq(in 0x1); } twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_LATCH_CLR, status); - twl->linkstat = status; return IRQ_HANDLED; }