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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 11161C4727D for ; Thu, 24 Sep 2020 07:19:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCCAE235F7 for ; Thu, 24 Sep 2020 07:19:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727236AbgIXHTy (ORCPT ); Thu, 24 Sep 2020 03:19:54 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:45684 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727030AbgIXHTl (ORCPT ); Thu, 24 Sep 2020 03:19:41 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id E2A5B6417747A76B4C8A; Thu, 24 Sep 2020 15:19:37 +0800 (CST) Received: from thunder-town.china.huawei.com (10.174.177.253) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Thu, 24 Sep 2020 15:19:28 +0800 From: Zhen Lei To: Thomas Gleixner , Jason Cooper , Marc Zyngier , Rob Herring , "Alexey Brodkin" , Vineet Gupta , devicetree , linux-snps-arc , linux-kernel CC: Zhen Lei , Sebastian Hesselbarth , Haoyu Lv , Libin , Kefeng Wang Subject: [PATCH v6 4/6] dt-bindings: dw-apb-ictl: support hierarchy irq domain Date: Thu, 24 Sep 2020 15:17:52 +0800 Message-ID: <20200924071754.4509-5-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 In-Reply-To: <20200924071754.4509-1-thunder.leizhen@huawei.com> References: <20200924071754.4509-1-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.174.177.253] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support to use dw-apb-ictl as primary interrupt controller. Signed-off-by: Zhen Lei Reviewed-by: Rob Herring --- .../bindings/interrupt-controller/snps,dw-apb-ictl.txt | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt index 086ff08322db94f..2db59df9408f4c6 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/snps,dw-apb-ictl.txt @@ -2,7 +2,8 @@ Synopsys DesignWare APB interrupt controller (dw_apb_ictl) Synopsys DesignWare provides interrupt controller IP for APB known as dw_apb_ictl. The IP is used as secondary interrupt controller in some SoCs with -APB bus, e.g. Marvell Armada 1500. +APB bus, e.g. Marvell Armada 1500. It can also be used as primary interrupt +controller in some SoCs, e.g. Hisilicon SD5203. Required properties: - compatible: shall be "snps,dw-apb-ictl" @@ -10,6 +11,8 @@ Required properties: region starting with ENABLE_LOW register - interrupt-controller: identifies the node as an interrupt controller - #interrupt-cells: number of cells to encode an interrupt-specifier, shall be 1 + +Additional required property when it's used as secondary interrupt controller: - interrupts: interrupt reference to primary interrupt controller The interrupt sources map to the corresponding bits in the interrupt @@ -21,6 +24,7 @@ registers, i.e. - (optional) fast interrupts start at 64. Example: + /* dw_apb_ictl is used as secondary interrupt controller */ aic: interrupt-controller@3000 { compatible = "snps,dw-apb-ictl"; reg = <0x3000 0xc00>; @@ -29,3 +33,11 @@ Example: interrupt-parent = <&gic>; interrupts = ; }; + + /* dw_apb_ictl is used as primary interrupt controller */ + vic: interrupt-controller@10130000 { + compatible = "snps,dw-apb-ictl"; + reg = <0x10130000 0x1000>; + interrupt-controller; + #interrupt-cells = <1>; + }; -- 1.8.3