From patchwork Thu Sep 24 07:17:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Leizhen (ThunderTown)" X-Patchwork-Id: 1370392 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BxmdZ5KBNz9sTN for ; Thu, 24 Sep 2020 17:19:46 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727210AbgIXHTp (ORCPT ); Thu, 24 Sep 2020 03:19:45 -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 X-Originating-IP: [10.174.177.253] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: devicetree@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>; + };