From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.brezillon@free-electrons.com (Boris BREZILLON) Date: Thu, 10 Jul 2014 20:32:49 +0200 Subject: [PATCH 0/3] irqchip: atmel-aic: Add irq RTC fixups 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> Message-ID: <20140710203249.23dd6444@bbrezillon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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