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=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS autolearn=unavailable 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 DE4A3C282C4 for ; Thu, 7 Feb 2019 15:52:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AB5D521904 for ; Thu, 7 Feb 2019 15:52:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726774AbfBGPwk (ORCPT ); Thu, 7 Feb 2019 10:52:40 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:39274 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726037AbfBGPwj (ORCPT ); Thu, 7 Feb 2019 10:52:39 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 30673A78; Thu, 7 Feb 2019 07:52:39 -0800 (PST) Received: from [10.1.196.62] (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4CD9C3F719; Thu, 7 Feb 2019 07:52:32 -0800 (PST) Subject: Re: [PATCH v6 1/6] irqchip/mtk-sysirq: support 4 interrupt parameters for sysirq From: Marc Zyngier To: Matthias Brugger , Erin Lo , Rob Herring , Mark Rutland , Thomas Gleixner , Jason Cooper , Greg Kroah-Hartman , Stephen Boyd Cc: devicetree@vger.kernel.org, srv_heupstream , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, yingjoe.chen@mediatek.com, mars.cheng@mediatek.com, eddie.huang@mediatek.com, linux-clk@vger.kernel.org, Seiya Wang References: <1548317240-44682-1-git-send-email-erin.lo@mediatek.com> <1548317240-44682-2-git-send-email-erin.lo@mediatek.com> <898ca3d9-002b-e28e-fc97-86bc2538e9de@gmail.com> <626b5b46-aac7-1532-386e-2fed85bf4ad9@arm.com> Openpgp: preference=signencrypt Autocrypt: addr=marc.zyngier@arm.com; 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Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <626b5b46-aac7-1532-386e-2fed85bf4ad9@arm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org On 07/02/2019 15:47, Marc Zyngier wrote: > On 07/02/2019 15:20, Matthias Brugger wrote: >> >> >> On 24/01/2019 09:07, Erin Lo wrote: >>> From: Seiya Wang >>> >>> To support partitioned PPIs, 4 interrupt parameters should be valid >>> for sysirq. >>> >>> Signed-off-by: Seiya Wang >>> Signed-off-by: Erin Lo >>> --- >>> drivers/irqchip/irq-mtk-sysirq.c | 4 ++-- >>> 1 file changed, 2 insertions(+), 2 deletions(-) >>> >>> diff --git a/drivers/irqchip/irq-mtk-sysirq.c b/drivers/irqchip/irq-mtk-sysirq.c >>> index 90aaf19..282736a 100644 >>> --- a/drivers/irqchip/irq-mtk-sysirq.c >>> +++ b/drivers/irqchip/irq-mtk-sysirq.c >>> @@ -81,7 +81,7 @@ static int mtk_sysirq_domain_translate(struct irq_domain *d, >>> unsigned int *type) >>> { >>> if (is_of_node(fwspec->fwnode)) { >>> - if (fwspec->param_count != 3) >>> + if (fwspec->param_count != 3 && fwspec->param_count != 4) >> >> Where is this 4th parameter used? > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt#n14 Sorry, I fired Send way too early. What I wanted to add is that it is not clear to me why this change would be required here, as this driver only supports SPIs. It could be fixed by just relaxing the binding itself. Thanks, M. -- Jazz is not dead. It just smells funny...