Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753875AbbLXJMw (ORCPT ); Thu, 24 Dec 2015 04:12:52 -0500 Received: from mail-ig0-f171.google.com ([209.85.213.171]:38880 "EHLO mail-ig0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753769AbbLXJMt (ORCPT ); Thu, 24 Dec 2015 04:12:49 -0500 MIME-Version: 1.0 In-Reply-To: <1450906511-342-1-git-send-email-v1ron@mail.ru> References: <1450906511-342-1-git-send-email-v1ron@mail.ru> Date: Thu, 24 Dec 2015 12:12:48 +0300 Message-ID: Subject: Re: [PATCH v2 0/3] clocksource/vt8500: Fix hangs in small delays From: Alexey Charkov To: Roman Volkov Cc: Tony Prisk , Daniel Lezcano , Thomas Gleixner , Arnd Bergmann , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Roman Volkov Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1480 Lines: 41 2015-12-24 0:35 GMT+03:00 Roman Volkov : > From: Roman Volkov > > vt8500 hangs in nanosleep() function, starting from commit > c6eb3f70d4482806dc2d3e1e3c7736f497b1d418, making the system unusable. > Per investigation, looks like set_next_event() now receives too small > delta and fails with -ETIME. > > Google group discussion: > https://groups.google.com/forum/#!topic/vt8500-wm8505-linux-kernel/vDMF_mDOb1k > > v2: > Address comments by Alexey Charkov. Merge patches to get less amount of > changes (three patches instead of four). > > Tested on my WM8650, no issues in three days uptime. > > Roman Volkov (3): > clocksource/vt8500: Use MIN_OSCR_DELTA from PXA > clocksource/vt8500: Remove the 'loops' variable > clocksource/vt8500: Add register R/W functions > > drivers/clocksource/vt8500_timer.c | 98 +++++++++++++++++++++++++++----------- > 1 file changed, 69 insertions(+), 29 deletions(-) This whole series looks good to me as far as VT8500 is concerned. Thanks a lot Roman for fixing it and streamlining the bus synchronization. Acked-by: Alexey Charkov Daniel, Thomas, any chance you could push this to -next via your clocksource tree? Best regards, Alexey -- 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/