From patchwork Sat Nov 7 08:14:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 321504 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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, 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 02B43C8300B for ; Sat, 7 Nov 2020 08:15:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDDDC20872 for ; Sat, 7 Nov 2020 08:15:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="XAxLTqRj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728181AbgKGIPb (ORCPT ); Sat, 7 Nov 2020 03:15:31 -0500 Received: from esa3.hgst.iphmx.com ([216.71.153.141]:57208 "EHLO esa3.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727868AbgKGIPa (ORCPT ); Sat, 7 Nov 2020 03:15:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1604736930; x=1636272930; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VhB8WEnLoq7dAyllPLVCuTHZzGrie11gmx4BWMw3mkw=; b=XAxLTqRjZH1mU8r9jbSO9z8XTPetLWgu0Kc8kdJmBBT2CoTGGvOJB55q PO7LkfWqcksbowQQYiEIzirPejos2dPmQy1AlY/C4RWoTMO44XWYSAWVM qUT0cPz/QSXZHqFHZcvUsM/tNL2I1zrJlzrgTMUQB8GKbtt6aPP+xOCwi aw2GCyjMxslXqF5FirN8i+7tQKeMuV2g+I/JN3mbU/CCI2H4ZnLDUP7DD MZQxJC7NYgsC7ow155tmfrzjN/dIaG2HpXYdCtM2IbiOe5Sx569HVg/sa SBBQN2AC9moA0ppeXAA00YhAx3Lb/3dtvRzKoSLSh9Y8lO5a1nnYhgux/ g==; IronPort-SDR: F/bsWOBVVHGr6C0ZAMKYljVjYYAKGYpvDT7vtZSjoZBgNxfSwo5xZeTWGCf6SJKxTGUlMLUc5B /ZINnUoNUNcG6HZv6D8Xfenq0eym6TpvVi8jVMno816dbFqZ3MVggJfduwx7wBEfGtI1id5gDw a8ETBhYt/HfIt94tNyRR2FzKagE+csm+4ZS7/+aXTIliI/iHq234ejplB4BcEMofwmBMbOyiLp cpb1SRaUlTrYEub8iXPjYjtwSBMt01PvKTjokyxahtrkzzYbvFz8ZyTqoGVDmK00WvHQVcjIub rlA= X-IronPort-AV: E=Sophos;i="5.77,459,1596470400"; d="scan'208";a="156564424" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 07 Nov 2020 16:15:30 +0800 IronPort-SDR: Vb5k+BNGdFYwckMGgd3PdyOj5zsGNg1s3OMHWScAi4kWexQfcbuJOS0GmFTvnXbQJvkakjsD38 RP3B2r2xFfV5XFx17SWiPlJe9BSqaajzOfaxCa0O3rq9+CiXZN5GbFilFZ2KEgUi8NN2R/T/90 GKWzLYITDTKGBJlkN//Vuq/+UGlcRYa4rinHvTDxqGW3q4m2DbiMd00cvI+QVi+NWe1sT8UHOe 6E+kDNDFUNM6EybA3GzQLFCHHrnJ57xbxDXTTSdTRVhQfz4DIES7AqX3qtWqJjtPRJoGUp5RuK atvX5ZpWqSeJZP0fwMDD6oPr Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Nov 2020 00:00:21 -0800 IronPort-SDR: g1LXRXd+/vgJ9IQncw2auwsajYAcwYINfKzbezBRCv21wTeb+4TC2P+2Vj/iBQmxJBB45LBQj0 l5q85yU7Y5IxQPC6YDL8wJ6s2yw5ifSfcS4uEur59uOiiZhSIq2KyjS/xOTtDFFGUpogNmVNgh W3bV8pgfvT6gMtYfw4feEgZ12ceRVUKYQTICyrggf4ECaNlz3vG2J6Tykawi01JX/qECgpllK1 ENVmP1kUckKQArkTkryMA/cYdKiL102RvqWUbmmXG23V3tmB5HD6CuaF4lgqjvspuD7UGI8iIL 0Dk= WDCIronportException: Internal Received: from hdrdzf2.ad.shared (HELO twashi.fujisawa.hgst.com) ([10.84.71.85]) by uls-op-cesaip01.wdc.com with ESMTP; 07 Nov 2020 00:15:28 -0800 From: Damien Le Moal To: Palmer Dabbelt , linux-riscv@lists.infradead.org, Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Serge Semin , Mark Brown , linux-spi@vger.kernel.org, Stephen Boyd , linux-clk@vger.kernel.org, Linus Walleij , linux-gpio@vger.kernel.org, Philipp Zabel Cc: Sean Anderson Subject: [PATCH 25/32] dt-bindings: Document kendryte,k210-rst bindings Date: Sat, 7 Nov 2020 17:14:13 +0900 Message-Id: <20201107081420.60325-26-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201107081420.60325-1-damien.lemoal@wdc.com> References: <20201107081420.60325-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Document the device tree bindings for the Kendryte K210 SoC reset controller driver in Documentation/devicetree/bindings/reset/kendryte,k210-rst.yaml. Signed-off-by: Damien Le Moal --- .../bindings/reset/kendryte,k210-rst.yaml | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/kendryte,k210-rst.yaml diff --git a/Documentation/devicetree/bindings/reset/kendryte,k210-rst.yaml b/Documentation/devicetree/bindings/reset/kendryte,k210-rst.yaml new file mode 100644 index 000000000000..bdd0bf37bdfb --- /dev/null +++ b/Documentation/devicetree/bindings/reset/kendryte,k210-rst.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/kendryte,k210-rst.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Kendryte K210 Reset Controller Device Tree Bindings + +maintainers: + - Damien Le Moal + +description: | + Kendryte K210 reset controller driver which support the system controller + subsystem supplied reset registers for the various peripherals within + the SoC. + + See also: + - dt-bindings/reset/k210-rst.h + +properties: + compatible: + allOf: + - items: + - const: kendryte,k210-rst + - const: syscon-reset + + regmap: + maxItems: 1 + description: phandle of the system controller (sysctl) node + + offset: + maxItems: 1 + description: peripheral reset register offset in the system controller + controller register map + + mask: + maxItems: 1 + description: bit-mask indicating valid reset bits in the reset register + + assert-high: + maxItems: 1 + description: bit value to write when asserting a reset + + '#reset-cells': + const: 1 + +required: + - '#reset-cells' + - compatible + - regmap + - offset + - mask + - assert-high + +additionalProperties: false + +examples: + - | + #include + #include + + sysctl: system-controller@50440000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "kendryte,k210-sysctl", + "syscon", "simple-mfd"; + reg = <0x50440000 0x1000>; + /* ... */ + sysrst: reset-controller { + compatible = "kendryte,k210-rst", + "syscon-reset"; + #reset-cells = <1>; + regmap = <&sysctl>; + offset = ; + mask = <0x27FFFFFF>; + assert-high = <1>; + }; + };