From patchwork Mon Feb 20 08:19:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xingyu Wu X-Patchwork-Id: 656223 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07B92C636CC for ; Mon, 20 Feb 2023 08:19:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230052AbjBTITH convert rfc822-to-8bit (ORCPT ); Mon, 20 Feb 2023 03:19:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229678AbjBTITG (ORCPT ); Mon, 20 Feb 2023 03:19:06 -0500 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFBA611EAC; Mon, 20 Feb 2023 00:19:03 -0800 (PST) Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 0F1DD24E2C2; Mon, 20 Feb 2023 16:19:01 +0800 (CST) Received: from EXMBX061.cuchost.com (172.16.6.61) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 20 Feb 2023 16:19:01 +0800 Received: from localhost.localdomain (183.27.98.67) by EXMBX061.cuchost.com (172.16.6.61) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 20 Feb 2023 16:19:00 +0800 From: Xingyu Wu To: , , , Wim Van Sebroeck , Guenter Roeck , Krzysztof Kozlowski CC: Rob Herring , Paul Walmsley , Palmer Dabbelt , Albert Ou , Philipp Zabel , Xingyu Wu , Samin Guo , , Conor Dooley Subject: [PATCH v3 1/2] dt-bindings: watchdog: Add watchdog for StarFive JH7110 Date: Mon, 20 Feb 2023 16:19:25 +0800 Message-ID: <20230220081926.267695-2-xingyu.wu@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230220081926.267695-1-xingyu.wu@starfivetech.com> References: <20230220081926.267695-1-xingyu.wu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.98.67] X-ClientProxiedBy: EXCAS066.cuchost.com (172.16.6.26) To EXMBX061.cuchost.com (172.16.6.61) X-YovoleRuleAgent: yovoleflag Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Add bindings to describe the watchdog for the StarFive JH7110 SoC. Signed-off-by: Xingyu Wu Reviewed-by: Krzysztof Kozlowski --- .../watchdog/starfive,jh7110-wdt.yaml | 74 +++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/starfive,jh7110-wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/starfive,jh7110-wdt.yaml b/Documentation/devicetree/bindings/watchdog/starfive,jh7110-wdt.yaml new file mode 100644 index 000000000000..05ba7069e29a --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/starfive,jh7110-wdt.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/starfive,jh7110-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive Watchdog + +maintainers: + - Samin Guo + - Xingyu Wu + +description: + The watchdog is a 32 bit counter and has two timeout phases. + At the first phase, the signal of watchdog interrupt output(WDOGINT) + will rise when counter is 0. The counter will reload the timeout value. + And then, if counter decreases to 0 again and WDOGINT isn't cleared, + the watchdog will reset the system unless the watchdog reset is disabled. + +allOf: + - $ref: watchdog.yaml# + +properties: + compatible: + const: starfive,jh7110-wdt + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: APB clock + - description: Core clock + + clock-names: + items: + - const: apb + - const: core + + resets: + items: + - description: APB reset + - description: Core reset + + reset-names: + items: + - const: apb + - const: core + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + +unevaluatedProperties: false + +examples: + - | + watchdog@13070000 { + compatible = "starfive,jh7110-wdt"; + reg = <0x13070000 0x10000>; + clocks = <&clk 122>, + <&clk 123>; + clock-names = "apb", "core"; + resets = <&rst 109>, + <&rst 110>; + reset-names = "apb", "core"; + };