Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752738AbbLaXhW (ORCPT ); Thu, 31 Dec 2015 18:37:22 -0500 Received: from smtp20.mail.ru ([94.100.179.251]:60508 "EHLO smtp20.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751104AbbLaXhS convert rfc822-to-8bit (ORCPT ); Thu, 31 Dec 2015 18:37:18 -0500 Date: Fri, 1 Jan 2016 02:32:08 +0300 From: Roman Volkov To: Thomas Gleixner Cc: arm@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Alexey Charkov , Roman Volkov , Tony Prisk , Daniel Lezcano , Bill Gatliff , Robert Jarzmik Subject: Re: [PATCH v2 RESEND 1/3] clocksource/vt8500: Use MIN_OSCR_DELTA from PXA Message-ID: <20160101023208.7721e085@v1ron-s7> In-Reply-To: References: <1451584927-4051-1-git-send-email-v1ron@mail.ru> <1451584927-4051-2-git-send-email-v1ron@mail.ru> X-Mailer: Claws Mail 3.13.1 (GTK+ 2.24.29; x86_64-unknown-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT X-Mras: Ok Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1300 Lines: 35 В Thu, 31 Dec 2015 23:33:45 +0100 (CET) Thomas Gleixner пишет: > Roman, > > On Thu, 31 Dec 2015, Roman Volkov wrote: > > Since vt8500 and PXA timers are identical, use MIN_OSCR_DELTA from > > PXA, which is bigger than existing value. It is required to > > determine the minimum delay which hardware can generate. > > Now that brings up the obvious question: > > If the vt8500 and PXA timers are identical why has vt8500 it's own > slightly different implementation and does not use the PXA timer? Thomas, I occasionally noticed that the PXA can be reused, when working on the bugfix for vt8500. Another good question would be how exactly this code can be reused. We may rework PXA driver to make it working under vt8500, or include the C code from the vt8500 and get two slightly different modules. You may look at our previous discussion with Alexey: https://lkml.org/lkml/2015/12/21/437 Adding Robert and Bill to get more opinions. At this step, fixing the vt8500 nanosleep bug is a priority. Happy New Year, Roman -- 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/