From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752062AbaGJScy (ORCPT ); Thu, 10 Jul 2014 14:32:54 -0400 Received: from top.free-electrons.com ([176.31.233.9]:58109 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751974AbaGJScx (ORCPT ); Thu, 10 Jul 2014 14:32:53 -0400 Date: Thu, 10 Jul 2014 20:32:49 +0200 From: Boris BREZILLON To: Boris BREZILLON Cc: Nicolas Ferre , Jean-Christophe Plagniol-Villard , Alexandre Belloni , Andrew Victor , Thomas Gleixner , Jason Cooper , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] irqchip: atmel-aic: Add irq RTC fixups Message-ID: <20140710203249.23dd6444@bbrezillon> In-Reply-To: <1405016741-2407-1-git-send-email-boris.brezillon@free-electrons.com> References: <1405016741-2407-1-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.20; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 10 Jul 2014 20:25:38 +0200 Boris BREZILLON wrote: > Hello, > > This patch series introduce the notion of irq fixups for atmel SoCs. > > In most at91 SoCs the first interrupt line is shared by several IPs, and > some of these HW blocks might be in an unknown state when booting the > Linux kernel. > Hence these IPs might generate spurious interrupts if they've not masked > their irqs and the shared irq line is requested by another peripheral. > > These fixups were previously done in arch/arm/mach-at91/sysirq_mask.c > but as we're trying to use standard implementation (IRQCHIP_DECLARE and > automatic call of irqchip_init within arch/arm/kernel/irq.c) we need to > do those fixups in the irqchip driver. This is what I was talking about: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/271425.htm -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com