From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: Re: [tegrarcm PATCH v1 6/8] tegrarcm: increase USB timeout Date: Thu, 19 Mar 2015 13:35:32 -0600 Message-ID: <550B2504.9010606@wwwdotorg.org> References: <1426639141-12060-1-git-send-email-jimmzhang@nvidia.com> <1426639141-12060-8-git-send-email-jimmzhang@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1426639141-12060-8-git-send-email-jimmzhang-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jimmy Zhang Cc: amartin-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-tegra@vger.kernel.org On 03/17/2015 06:38 PM, Jimmy Zhang wrote: > From: Allen Martin > > Increase USB timeout from 1ms to 3ms to avoid flashing failure > happened when a long USB cable (5ft ?) is used. This really doesn't make any sense; cable length isn't going to make more than some ns of timing difference, unless corrupted packets cause lots of retries. I'd suggest replacing the bad cable if that's really the cause.