From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4D3A8C3A5A1 for ; Thu, 22 Aug 2019 13:48:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1E405233FD for ; Thu, 22 Aug 2019 13:48:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="vmwnltKT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731253AbfHVNsq (ORCPT ); Thu, 22 Aug 2019 09:48:46 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:51892 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725941AbfHVNsp (ORCPT ); Thu, 22 Aug 2019 09:48:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Wa9ICQMLAkpnUdtW+YKoJlW1OdLRx4OMeLNV/HO4rkE=; b=vmwnltKT4ugdUB8ZCu8srnRnnk bMQVJ+gJtyCR/Tmp991ooRQh2dw70kqVVOSnYuOfTR4Ylk3OjMjGtVs+DsTJfsY1jYjsjWssBqw08 LrvTVSI72obWRuKgbfl7xOasjyvBC85u2GQojwaFiM1qzurKbHCbYBzcz2mgwz08Oe+s=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1i0nSD-00044Q-OF; Thu, 22 Aug 2019 15:48:41 +0200 Date: Thu, 22 Aug 2019 15:48:41 +0200 From: Andrew Lunn To: Federico Vaga Cc: Peter Korsgaard , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] i2c: ocores: use request_any_context_irq() to register IRQ handler Message-ID: <20190822134841.GG13020@lunn.ch> References: <20190822132132.16557-1-federico.vaga@cern.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190822132132.16557-1-federico.vaga@cern.ch> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 22, 2019 at 03:21:32PM +0200, Federico Vaga wrote: > The i2c-ocores device is an HDL component that get instantiated in FPGA. > The software stack used to drive an FPGA can be very different, and the > i2c-ocore ip-core must work in different context. With respect to this > patch the IRQ controller behind this device, and its driver, can have > different implementations (nested threads). For this reason, it is safer > to use `request_any_context_irq()` to avoid errors at probe time. > > Signed-off-by: Federico Vaga Reviewed-by: Andrew Lunn Andrew