Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754364AbbDTISl (ORCPT ); Mon, 20 Apr 2015 04:18:41 -0400 Received: from mail-wg0-f44.google.com ([74.125.82.44]:32840 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753887AbbDTISg (ORCPT ); Mon, 20 Apr 2015 04:18:36 -0400 Message-ID: <1429517912.15866.1.camel@linaro.org> Subject: Re: [PATCH] usb: ehci-msm: Don't ioremap configuration space exclusively From: "Ivan T. Ivanov" To: Alan Stern Cc: Vivek Gautam , Vivek Gautam , Greg Kroah-Hartman , USB list , Kernel development list , linux-arm-msm@vger.kernel.org Date: Mon, 20 Apr 2015 11:18:32 +0300 In-Reply-To: <1429170139.26621.3.camel@linaro.org> References: <1428568436-9134-1-git-send-email-ivan.ivanov@linaro.org> <1429170139.26621.3.camel@linaro.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.13.7-fta1.2~trusty Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1141 Lines: 36 On Thu, 2015-04-16 at 10:42 +0300, Ivan T. Ivanov wrote: > Hi, > > On Wed, 2015-04-15 at 21:28 +0530, Vivek Gautam wrote: > > On Thu, Apr 9, 2015 at 8:19 PM, Alan Stern wrote: > > > On Thu, 9 Apr 2015, Ivan T. Ivanov wrote: > > > > > > > This allow same IO space to be shared between HCD and Device > > > > controller driver. Which can be loaded simultaneously and > > > > started/stopped on demand by USB OTG PHY driver. > > > > Are you sure ? > > No. > > > Will ehci controller registers overlap with the Device controller's register > > region ? > > > > Well, not exactly DC vs HC region, but at least USB_AHBBURST, USB_AHBMODE, > USB_USBMODE are used by both OTG phy-msm-usb and this ehci-msm driver. > And this is broken right now. Hi Alan, Perhaps I have to resend this patch with updated commit message? Are they any other obstacles? Regards, Ivan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/