From patchwork Wed Aug 14 11:41:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Chen X-Patchwork-Id: 13763403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 68795C52D7B for ; Wed, 14 Aug 2024 11:43:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=X/+AbA11HgKFPifoJsyaNxRe0CarHD5r9IuG9xSD6FE=; b=N5EC2qbGIR9DIt3FSL0hbTJNOO HGdm0c7m6w6ErmJsItFUEX/TM6lNW2ZQJHABkOhCjtANVyqRum5QwGSVzFTUECo3xJ/KZTeRFMxoS b5mNHXMiD/foZsATmMhNKHDrfSMq2H/3chS1pR6c3VU31Sx+KTMnpv/5aSLbXmu7YnH62cgkPdn80 gHFafkCTEZJWS+gpj7BzzOLPSH4IZpxoRUBMReynrVn6p2JqKq3fFw+B03FCGcMoMqNl39dTp15ji lio9N/1HRVTQKiWbymhMBYAVlZ9xuyY5rygXG28z2zNuNmV++C4X9zSVGkDbjHMBA/jN7Zqh98pbm upKXNVug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1seCPE-00000006obc-2qIx; Wed, 14 Aug 2024 11:43:08 +0000 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1seCNS-00000006o5s-3cIj for linux-arm-kernel@lists.infradead.org; Wed, 14 Aug 2024 11:41:20 +0000 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Wed, 14 Aug 2024 19:41:08 +0800 Received: from localhost.localdomain (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Wed, 14 Aug 2024 19:41:08 +0800 From: Kevin Chen To: , , , , , , , , , , Subject: [PATCH v2 1/2] dt-bindings: interrupt-controller: Add support for ASPEED AST27XX INTC Date: Wed, 14 Aug 2024 19:41:05 +0800 Message-ID: <20240814114106.2809876-3-kevin_chen@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240814114106.2809876-1-kevin_chen@aspeedtech.com> References: <20240814114106.2809876-1-kevin_chen@aspeedtech.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240814_044118_921687_B89FF0C4 X-CRM114-Status: GOOD ( 12.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The ASPEED AST27XX interrupt controller(INTC) contain second level and third level interrupt controller. The third level INTC combines 32 interrupt sources into 1 interrupt into parent interrupt controller. The second level INTC doing hand shake with third level INTC. --- .../aspeed,ast2700-intc.yaml | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2700-intc.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2700-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2700-intc.yaml new file mode 100644 index 000000000000..9a76d5c3b66b --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2700-intc.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/aspeed,ast2700-intc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Aspeed AST2700 Interrupt Controller + +description: + This interrupt controller hardware is second level interrupt controller that + is hooked to a parent interrupt controller. It's useful to combine multiple + interrupt sources into 1 interrupt to parent interrupt controller. + +maintainers: + - Kevin Chen + +properties: + compatible: + enum: + - aspeed,ast2700-intc-ic + + reg: + minItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + + interrupts: + minItems: 1 + maxItems: 10 + description: + It contains two types of interrupt controller. The first type is multiple + interrupt sources into parent interrupt controller. The second type is + 1 interrupt source to parent interrupt controller. + +required: + - compatible + - reg + - interrupt-controller + - '#interrupt-cells' + - interrupts + +additionalProperties: false + +examples: + - | + #include + + bus { + #address-cells = <2>; + #size-cells = <2>; + + interrupt-controller@12101b00 { + compatible = "aspeed,ast2700-intc-ic"; + reg = <0 0x12101b00 0 0x10>; + #interrupt-cells = <2>; + interrupt-controller; + interrupts = , + , + , + , + , + , + , + , + , + ; + }; + };