From patchwork Thu Jul 13 09:51:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Hua Qian" X-Patchwork-Id: 702697 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 A86ACC001DC for ; Thu, 13 Jul 2023 09:54:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232263AbjGMJxb (ORCPT ); Thu, 13 Jul 2023 05:53:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234663AbjGMJwz (ORCPT ); Thu, 13 Jul 2023 05:52:55 -0400 X-Greylist: delayed 61 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 13 Jul 2023 02:52:53 PDT Received: from mta-64-225.siemens.flowmailer.net (mta-64-225.siemens.flowmailer.net [185.136.64.225]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC7E9268A for ; Thu, 13 Jul 2023 02:52:53 -0700 (PDT) Received: by mta-64-225.siemens.flowmailer.net with ESMTPSA id 20230713095148e61a32ba31c6c9aed6 for ; Thu, 13 Jul 2023 11:51:49 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=huaqian.li@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc; bh=FmUGUn49WETz1Fw3mb6/eNP9ivK6zo0mmq3YHUWYtzA=; b=NKojwrGakjk/94cLrq3SsM9YQMLnobsnR9QuFWb7dq4VRHt71ndg7EMaq8m5aJBF64oSIC lZS1FOOkGnbU+JMgcPh7oaJ2OuTT8yu7lzYMWRTv//gj7lV7lOTMi37ypn9o0Ecy47L9JOyb 29kTUgaDi/dQE6+odkIHk0RaMeXdc=; From: huaqian.li@siemens.com To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org Cc: huaqianlee@gmail.com, nm@ti.com, vigneshr@ti.com, kristo@kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, jan.kiszka@siemens.com, baocheng.su@siemens.com, Li Hua Qian Subject: [PATCH v3 0/3] Add support for WDIOF_CARDRESET on TI AM65x Date: Thu, 13 Jul 2023 17:51:24 +0800 Message-Id: <20230713095127.1230109-1-huaqian.li@siemens.com> MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-959203:519-21489:flowmailer Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org From: Li Hua Qian The watchdog hardware of TI AM65X platform does not support WDIOF_CARDRESET feature, add a reserved memory to save the watchdog reset cause, to know if the board reboot is due to a watchdog reset. Changes in v3: - Add memory-region back for the reserved memory, and remove reserved memory from the watchdog IO address space. - Add changelog. - Link to v2: https://lore.kernel.org/linux-watchdog/20230711091713.1113010-1-huaqian.li@siemens.com Changes in v2: - Remove memory-region and memory-size properties, and bind the reserved memory to watchdog IO address space. - Remove the unnecessary rti_wdt_ioctl. - Fix the mail list - Link to v1: https://lore.kernel.org/all/3137d87e56ef75ba0b8a923d407b2fecace6ccbd.camel@siemens.com/ v1 had a wrong mail list at the beginning, and the mail thread was messed up. Li Hua Qian (3): dt-bindings: watchdog: ti,rti-wdt: Add support for WDIOF_CARDRESET arm64: dts: ti: Add reserved memory for watchdog watchdog:rit_wdt: Add support for WDIOF_CARDRESET .../bindings/watchdog/ti,rti-wdt.yaml | 12 +++++ .../boot/dts/ti/k3-am65-iot2050-common.dtsi | 10 ++++ drivers/watchdog/rti_wdt.c | 51 +++++++++++++++++++ 3 files changed, 73 insertions(+) Reviewed-by: Krzysztof Kozlowski