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=-8.7 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT 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 5E157C004C9 for ; Tue, 7 May 2019 20:41:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2FF0620449 for ; Tue, 7 May 2019 20:41:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="fzF5U/uk"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="fzF5U/uk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727296AbfEGUlm (ORCPT ); Tue, 7 May 2019 16:41:42 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:52914 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726998AbfEGUky (ORCPT ); Tue, 7 May 2019 16:40:54 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E144461154; Tue, 7 May 2019 20:40:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1557261653; bh=/5F8HTO9iokGlCSR/1R6LYbndmC6HaerDlTRHeo0W9Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fzF5U/ukwM5O2da73I+4UGIzWqC4gckWJHSxIkmdV6f8YM2PSNA2nPC4pNjPMJBfn R2XOHEIl8IAWAEf2eOfEQgxhMEm2cholA1/lYXD0A4US9bTzDSvBaUaTiyPv/iviaN I3Zs26VLBNdAXF6kh8+GTw3mT0DeBB2NWRqTQWb0= Received: from codeaurora.org (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: ilina@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 6189260E3E; Tue, 7 May 2019 20:40:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1557261653; bh=/5F8HTO9iokGlCSR/1R6LYbndmC6HaerDlTRHeo0W9Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fzF5U/ukwM5O2da73I+4UGIzWqC4gckWJHSxIkmdV6f8YM2PSNA2nPC4pNjPMJBfn R2XOHEIl8IAWAEf2eOfEQgxhMEm2cholA1/lYXD0A4US9bTzDSvBaUaTiyPv/iviaN I3Zs26VLBNdAXF6kh8+GTw3mT0DeBB2NWRqTQWb0= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6189260E3E Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=ilina@codeaurora.org From: Lina Iyer To: swboyd@chromium.org, evgreen@chromium.org, marc.zyngier@arm.com, linus.walleij@linaro.org Cc: linux-kernel@vger.kernel.org, rplsssn@codeaurora.org, linux-arm-msm@vger.kernel.org, thierry.reding@gmail.com, bjorn.andersson@linaro.org, dianders@chromium.org, Lina Iyer Subject: [PATCH v5 03/11] irqdomain: add bus token DOMAIN_BUS_WAKEUP Date: Tue, 7 May 2019 14:37:41 -0600 Message-Id: <20190507203749.3384-4-ilina@codeaurora.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190507203749.3384-1-ilina@codeaurora.org> References: <20190507203749.3384-1-ilina@codeaurora.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A single controller can handle normal interrupts and wake-up interrupts independently, with a different numbering space. It is thus crucial to allow the driver for such a controller discriminate between the two. A simple way to do so is to tag the wake-up irqdomain with a "bus token" that indicates the wake-up domain. This slightly abuses the notion of bus, but also radically simplifies the design of such a driver. Between two evils, we choose the least damaging. Suggested-by: Stephen Boyd Signed-off-by: Lina Iyer --- Changes in v4: - Update commit text --- include/linux/irqdomain.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 61706b430907..4eaf17dfd2f8 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -82,6 +82,7 @@ enum irq_domain_bus_token { DOMAIN_BUS_NEXUS, DOMAIN_BUS_IPI, DOMAIN_BUS_FSL_MC_MSI, + DOMAIN_BUS_WAKEUP, }; /** -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project