From patchwork Wed May 3 09:33:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neha Malcom Francis X-Patchwork-Id: 13229972 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 53AB0C7EE22 for ; Wed, 3 May 2023 09:34:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0CAVc9Tw7gi5BNwg6bQAB1g3UrdrvWBl2szdWU2u0Ik=; b=G7WI0r7zz+a7qK otZFSI7TgssUgIB85M5Xi4L02av7zfai3GeeEvjjWtNPWdUXEp8IuLW2KyxjgCw55uGIdePLXRnY5 r3TKmauKOVtdPEIV56b0eG6zN8Y9nWmWq+Aq6ri0u4WUGpzV+DmjFK/miH3/h8nhqeiNhma2oLDak FNEdDOp2SC68ejUX7lEJqc+pyGmKyo/2M01IZKJehctS8obSPM5SovwlWnVnSSQdxu3W3KRsIDVhn C5YSISAbYh4UVYnNbtO9D7HpYqx1o/OTBZlfS35TZzx56SnvbdB8RAbDz+Gu77k5taejGKiCWJvwk UB9mwsS51lrzlvqltB7w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pu8rV-0041Yn-1C; Wed, 03 May 2023 09:33:25 +0000 Received: from lelv0142.ext.ti.com ([198.47.23.249]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pu8rS-0041XP-0K for linux-arm-kernel@lists.infradead.org; Wed, 03 May 2023 09:33:23 +0000 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 3439XHAh050539; Wed, 3 May 2023 04:33:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1683106397; bh=pRJHfhRAzhk8bFQEaVn1idhe/D6js0UAlwCDoXfBQFk=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Gd+oIbBlhvHWZlEKEmMzboA9bp3WMrPFbE3ksy2YS19vogCfDpoBEOLoE3KNZZxVn YHhhdcoB7PaJSxV1v6G7uL3xUpIOf4GPQ1V5tRDKcBpK1EHGCqT58WBSIkWahId3mV 66ijsgo7t2sEeXpU0bVaggiZRe5tPcdZ5J4/ISZM= Received: from DLEE107.ent.ti.com (dlee107.ent.ti.com [157.170.170.37]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 3439XHrp006927 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 3 May 2023 04:33:17 -0500 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 3 May 2023 04:33:16 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Wed, 3 May 2023 04:33:16 -0500 Received: from ula0497641.dhcp.ti.com (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3439XAIm084380; Wed, 3 May 2023 04:33:14 -0500 From: Neha Malcom Francis To: , , , , CC: , , , , Subject: [PATCH v4 1/3] dt-bindings: misc: esm: Add ESM support for TI K3 devices Date: Wed, 3 May 2023 15:03:08 +0530 Message-ID: <20230503093310.85779-2-n-francis@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230503093310.85779-1-n-francis@ti.com> References: <20230503093310.85779-1-n-francis@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230503_023322_219799_46DA5A6E X-CRM114-Status: GOOD ( 14.98 ) 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 Document the binding for TI K3 ESM (Error Signaling Module) block. Signed-off-by: Neha Malcom Francis Reviewed-by: Krzysztof Kozlowski --- .../bindings/misc/ti,j721e-esm.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/ti,j721e-esm.yaml diff --git a/Documentation/devicetree/bindings/misc/ti,j721e-esm.yaml b/Documentation/devicetree/bindings/misc/ti,j721e-esm.yaml new file mode 100644 index 000000000000..408296157576 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/ti,j721e-esm.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2022 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/ti,j721e-esm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments K3 ESM + +maintainers: + - Neha Malcom Francis + +description: + The ESM (Error Signaling Module) is an IP block on TI K3 devices + that allows handling of safety events somewhat similar to what interrupt + controller would do. The safety signals have their separate paths within + the SoC, and they are handled by the ESM, which routes them to the proper + destination, which can be system reset, interrupt controller, etc. In the + simplest configuration the signals are just routed to reset the SoC. + +properties: + compatible: + const: ti,j721e-esm + + reg: + maxItems: 1 + + ti,esm-pins: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + integer array of ESM interrupt pins to route to external event pin + which can be used to reset the SoC. + minItems: 1 + maxItems: 255 + +additionalProperties: false + +required: + - compatible + - reg + - ti,esm-pins + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + esm@700000 { + compatible = "ti,j721e-esm"; + reg = <0x0 0x700000 0x0 0x1000>; + ti,esm-pins = <344>, <345>; + }; + };