From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966789AbcA1IbQ (ORCPT ); Thu, 28 Jan 2016 03:31:16 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:42569 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754713AbcA1IbO (ORCPT ); Thu, 28 Jan 2016 03:31:14 -0500 Date: Thu, 28 Jan 2016 00:31:12 -0800 From: Stephen Boyd To: Alexandre Belloni Cc: Nicolas Ferre , Boris Brezillon , Jean-Christophe Plagniol-Villard , Michael Turquette , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org Subject: Re: [PATCH v4 03/13] clk: at91: remove IRQ handling and use polling Message-ID: <20160128083112.GJ12841@codeaurora.org> References: <1453911072-23608-1-git-send-email-alexandre.belloni@free-electrons.com> <1453911072-23608-4-git-send-email-alexandre.belloni@free-electrons.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1453911072-23608-4-git-send-email-alexandre.belloni@free-electrons.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/27, Alexandre Belloni wrote: > The AT91 clock drivers make use of IRQs to avoid polling when waiting for > some clocks to be enabled. Unfortunately, this leads to a crash when those > IRQs are threaded (which happens when using preempt-rt) because they are > registered before thread creation is possible. > > Use polling on those clocks instead to avoid the problem. > > Signed-off-by: Alexandre Belloni > --- Acked-by: Stephen Boyd -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project