From patchwork Tue May 7 20:37:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lina Iyer X-Patchwork-Id: 10933777 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A7F541398 for ; Tue, 7 May 2019 20:41:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9920328706 for ; Tue, 7 May 2019 20:41:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8CEC528952; Tue, 7 May 2019 20:41:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3AE2228706 for ; Tue, 7 May 2019 20:41:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727128AbfEGUll (ORCPT ); Tue, 7 May 2019 16:41:41 -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 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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, }; /**