Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755686AbbDIOtH (ORCPT ); Thu, 9 Apr 2015 10:49:07 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:58766 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755665AbbDIOtB (ORCPT ); Thu, 9 Apr 2015 10:49:01 -0400 Date: Thu, 9 Apr 2015 10:49:00 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: "Ivan T. Ivanov" , Vivek Gautam cc: Greg Kroah-Hartman , USB list , Kernel development list , Subject: Re: [PATCH] usb: ehci-msm: Don't ioremap configuration space exclusively In-Reply-To: <1428568436-9134-1-git-send-email-ivan.ivanov@linaro.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1709 Lines: 55 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. You really should CC the person who wrote the code you are changing. This is almost exactly the same as reverting commit 70843f623b58 (usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap). Vivek, what do you think? Alan Stern > Signed-off-by: Ivan T. Ivanov > --- > drivers/usb/host/ehci-msm.c | 10 +++++++--- > 1 file changed, 7 insertions(+), 3 deletions(-) > > diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c > index 9db74ca..f059e15 100644 > --- a/drivers/usb/host/ehci-msm.c > +++ b/drivers/usb/host/ehci-msm.c > @@ -88,13 +88,17 @@ static int ehci_msm_probe(struct platform_device *pdev) > } > > res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > - hcd->regs = devm_ioremap_resource(&pdev->dev, res); > + if (!res) > + return -ENODEV; > + > + hcd->rsrc_start = res->start; > + hcd->rsrc_len = resource_size(res); > + > + hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len); > if (IS_ERR(hcd->regs)) { > ret = PTR_ERR(hcd->regs); > goto put_hcd; > } > - hcd->rsrc_start = res->start; > - hcd->rsrc_len = resource_size(res); > > /* > * OTG driver takes care of PHY initialization, clock management, > -- > 1.9.1 > > > -- 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/