From patchwork Sun Apr 25 01:44:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qing Wang X-Patchwork-Id: 427431 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 53B7EC43462 for ; Sun, 25 Apr 2021 01:44:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37B2B61370 for ; Sun, 25 Apr 2021 01:44:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231319AbhDYBo5 (ORCPT ); Sat, 24 Apr 2021 21:44:57 -0400 Received: from mail-m17640.qiye.163.com ([59.111.176.40]:40594 "EHLO mail-m17640.qiye.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231175AbhDYBoz (ORCPT ); Sat, 24 Apr 2021 21:44:55 -0400 Received: from vivo-HP-ProDesk-680-G4-PCI-MT.vivo.xyz (unknown [58.250.176.229]) by mail-m17640.qiye.163.com (Hmail) with ESMTPA id 88E125401D5; Sun, 25 Apr 2021 09:44:13 +0800 (CST) From: Wang Qing To: Wim Van Sebroeck , Guenter Roeck , Rob Herring , Matthias Brugger , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Wang Qing Subject: [PATCH V8 2/2] doc: mtk-wdt: support pre-timeout when the bark irq is available Date: Sun, 25 Apr 2021 09:44:03 +0800 Message-Id: <1619315043-1345-3-git-send-email-wangqing@vivo.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1619315043-1345-1-git-send-email-wangqing@vivo.com> References: <1619315043-1345-1-git-send-email-wangqing@vivo.com> X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgYFAkeWUFZS1VLWVdZKFlBSE83V1ktWUFJV1kPCR oVCBIfWUFZGksaQ1ZKHk1NSUIfT0pOGElVEwETFhoSFyQUDg9ZV1kWGg8SFR0UWUFZT0tIVUpKS0 hKTFVLWQY+ X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6PRA6PCo*Kj8INANKFDIaCBoM GUNPCTlVSlVKTUpCSEpOS05PSUpDVTMWGhIXVQwaFRwKEhUcOw0SDRRVGBQWRVlXWRILWUFZTkNV SU5LVUpMTVVJSUJZV1kIAVlBSU1NSjcG X-HM-Tid: 0a7906b2d519d995kuws88e125401d5 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Add description of pre-timeout in mtk-wdt. Signed-off-by: Wang Qing --- Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt index e36ba60..8e27777 --- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt @@ -1,5 +1,8 @@ Mediatek SoCs Watchdog timer +The watchdog supports a pre-timeout interrupt that fires timeout-sec/2 +before the expiry. + Required properties: - compatible should contain: @@ -17,6 +20,7 @@ Required properties: - reg : Specifies base physical address and size of the registers. Optional properties: +- interrupts: Watchdog pre-timeout (bark) interrupt. - timeout-sec: contains the watchdog timeout in seconds. - #reset-cells: Should be 1. @@ -26,6 +30,7 @@ watchdog: watchdog@10007000 { compatible = "mediatek,mt8183-wdt", "mediatek,mt6589-wdt"; reg = <0 0x10007000 0 0x100>; + interrupts = ; timeout-sec = <10>; #reset-cells = <1>; };