From patchwork Fri Sep 13 21:59:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lina Iyer X-Patchwork-Id: 11145365 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 80832184E for ; Fri, 13 Sep 2019 22:00:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 60901214DA for ; Fri, 13 Sep 2019 22:00:38 +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="Qm+YCF3O"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="GFIEJjp8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389992AbfIMV7p (ORCPT ); Fri, 13 Sep 2019 17:59:45 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:59412 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725747AbfIMV7o (ORCPT ); Fri, 13 Sep 2019 17:59:44 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id CE3616044E; Fri, 13 Sep 2019 21:59:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1568411983; bh=r9VU5NwhhErW5lihrBpuQhz4eshG9uEvbjR5J9Nhdt8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qm+YCF3O1Adn77QKMX8qd0IODgk1ZQDBXznpdHZ0x2htiOfXvFzUXbpwgJhBAFq3I 8EJ2XmypNXXYfvqfaxeBYCHQCM4ECjl1+NFYpL78zCU8OZGNQknY/uUoRchILtH3wX XDD8IwOFexv9i7To4T7fp8mIxg6OqEsShtRIYmhk= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 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 6129A602C3; Fri, 13 Sep 2019 21:59:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1568411982; bh=r9VU5NwhhErW5lihrBpuQhz4eshG9uEvbjR5J9Nhdt8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GFIEJjp8j+bneKliC31btEKLSZwnGe3eXjbJG3hIXNXMpuVLMcFCMlsBejou94j7z SC6QgsqyH1PKyrV/OIXoj/5jsyvz1skcQTfpnFrdZgylFwAQv5iKvdpgnS6P6pvoNf ERVF9zxlbeUcIPxhfNP+5qRB+Hk5tVfr3UB5DZk0= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6129A602C3 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, maz@kernel.org, linus.walleij@linaro.org Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org, mkshah@codeaurora.org, linux-gpio@vger.kernel.org, Lina Iyer Subject: [PATCH RFC v2 01/14] irqdomain: add bus token DOMAIN_BUS_WAKEUP Date: Fri, 13 Sep 2019 15:59:09 -0600 Message-Id: <1568411962-1022-2-git-send-email-ilina@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1568411962-1022-1-git-send-email-ilina@codeaurora.org> References: <1568411962-1022-1-git-send-email-ilina@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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 --- include/linux/irqdomain.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 07ec8b3..cc846ab 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -83,6 +83,7 @@ enum irq_domain_bus_token { DOMAIN_BUS_IPI, DOMAIN_BUS_FSL_MC_MSI, DOMAIN_BUS_TI_SCI_INTA_MSI, + DOMAIN_BUS_WAKEUP, }; /**