Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760720Ab3DBHNA (ORCPT ); Tue, 2 Apr 2013 03:13:00 -0400 Received: from hqemgate03.nvidia.com ([216.228.121.140]:9263 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750900Ab3DBHM7 convert rfc822-to-8bit (ORCPT ); Tue, 2 Apr 2013 03:12:59 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Tue, 02 Apr 2013 00:12:11 -0700 From: Venu Byravarasu To: "gregkh@linuxfoundation.org" , Stephen Warren CC: "stern@rowland.harvard.edu" , "linux-usb@vger.kernel.org" , "linux-kernel@vger.kernel.org" Date: Tue, 2 Apr 2013 12:42:54 +0530 Subject: RE: [PATCH] usb: host: tegra: Reset Tegra USB controller before init Thread-Topic: [PATCH] usb: host: tegra: Reset Tegra USB controller before init Thread-Index: Ac4ZOUx4ld3TXeheQwGwpQD0WTlwaAWNwbhQ Message-ID: References: <1362033418-7332-1-git-send-email-vbyravarasu@nvidia.com> <512F9F0B.1040303@wwwdotorg.org> <5134D210.3060405@wwwdotorg.org> <20130305003423.GA23996@kroah.com> In-Reply-To: <20130305003423.GA23996@kroah.com> Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1959 Lines: 52 > -----Original Message----- > From: gregkh@linuxfoundation.org [mailto:gregkh@linuxfoundation.org] > Sent: Tuesday, March 05, 2013 6:04 AM > To: Stephen Warren > Cc: Venu Byravarasu; stern@rowland.harvard.edu; linux- > usb@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] usb: host: tegra: Reset Tegra USB controller before init > > On Mon, Mar 04, 2013 at 09:55:44AM -0700, Stephen Warren wrote: > > On 03/04/2013 12:55 AM, Venu Byravarasu wrote: > > > Stephen Warren wrote at Thursday, February 28, 2013 11:47 PM: > > >> On 02/27/2013 11:36 PM, Venu Byravarasu wrote: > > >>> To clear any configurations made by U-Boot on Tegra USB controller, > > >>> reset it before init in probe. > > >> > > >>> diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci- > tegra.c > > >> > > >>> @@ -691,6 +692,10 @@ static int tegra_ehci_probe(struct > platform_device > > >> *pdev) > > >>> if (err) > > >>> goto fail_clk; > > >>> > > >>> + tegra_periph_reset_assert(tegra->clk); > > >>> + udelay(1); > > >>> + tegra_periph_reset_deassert(tegra->clk); > > >> > > Alan, Greg, if you're OK with this patch now, or for any revised > > version, an Ack so I can take it through the Tegra tree would be great, > > thanks. > > Acked-by: Greg Kroah-Hartman Hi Greg, Stephen initially thought that the patch can be taken through tegra tree, along with other patches posted at http://marc.info/?l=linux-tegra&m=136361016003625&w=2 . As some other issues are blocking that patch series, can this change be merged independent of that patch series via USB tree? The original change can be seen at http://marc.info/?l=linux-usb&m=136203353205291&w=2 Thanks, Venu -- 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/