From patchwork Fri Feb 21 05:38:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Benn X-Patchwork-Id: 11395577 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 955821395 for ; Fri, 21 Feb 2020 05:38:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7487E24653 for ; Fri, 21 Feb 2020 05:38:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="NHBlsLvE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727145AbgBUFic (ORCPT ); Fri, 21 Feb 2020 00:38:32 -0500 Received: from mail-pj1-f66.google.com ([209.85.216.66]:39127 "EHLO mail-pj1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726994AbgBUFib (ORCPT ); Fri, 21 Feb 2020 00:38:31 -0500 Received: by mail-pj1-f66.google.com with SMTP id e9so235800pjr.4 for ; Thu, 20 Feb 2020 21:38:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=CapMNX7pjr8MkESV5PbFvA3nh0aG4lhz0SRP146DeOk=; b=NHBlsLvEzhPsV9lVrqrxLfj46dzf+dfvYfal/9H20MGjw4nLWWSVa8v81TGtfCiHGG UNImlkJ6xyOWAA6l1H1xA2JqGLXbVDYYjArPqkFMKmwUZffHJaGPMeXaVTJX8lG24W7Z 1BH97JwtFsJ//+S0hygIEpEECdThBP537UmUQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=CapMNX7pjr8MkESV5PbFvA3nh0aG4lhz0SRP146DeOk=; b=k/ANmarl3Ui3zLOaeZiWeesSpYzYafdbxse696oylijWQHx63YOIiG7wPb+80qEJ2b 1jwb6xVpjhEc0Ui3RS3Abhiqe/tpDmCGLbCfh5SJeHugNmhlTX5/i0Re+SSbGoA70uEX C5WxMD4tR5Yzwh2DIeFbWAzSDal+44B1KHXldiyhEN1WEX02g8jbXv9VgowoqUhsuHLh nxc+3a1ANX2EdttpO2zyE4EFPfe+lYC6TGB9ncr7fWbXJ+cyR3H5y6QDceMCe33ruZmS i6Z0KKKC+dlrAYqVq+x3f8WmrWW4u634qx0dnRN4LRm+yY+yvj3cWCMJLpqX0EpKQ26T AqSg== X-Gm-Message-State: APjAAAU95SfWBzXR/YgmBMP/yXQgxnGLiA84XDWZZHbIydUfkOAGbuaE dHtC4IqhKaKRS+m2g723EuXfLA== X-Google-Smtp-Source: APXvYqz+fNCi7RyQICRTNgU9IYDRlA2CBQL0xzTHdNzESzxk/Lp56MofgOU6MTmKnMrgVqSEjK8ojg== X-Received: by 2002:a17:90a:804a:: with SMTP id e10mr1046782pjw.41.1582263510005; Thu, 20 Feb 2020 21:38:30 -0800 (PST) Received: from localhost ([2401:fa00:9:14:1105:3e8a:838d:e326]) by smtp.gmail.com with ESMTPSA id m12sm1324157pfh.37.2020.02.20.21.38.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2020 21:38:29 -0800 (PST) From: Evan Benn To: LKML Cc: jwerner@chromium.org, Evan Benn , "David S. Miller" , Greg Kroah-Hartman , Guenter Roeck , Jonathan Cameron , Mark Rutland , Matthias Brugger , Mauro Carvalho Chehab , Rob Herring , Wim Van Sebroeck , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-watchdog@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: watchdog: Add mt8173,smc-wdt watchdog Date: Fri, 21 Feb 2020 16:38:01 +1100 Message-Id: <20200221163717.v2.1.I02ebc5b8743b1a71e0e15f68ea77e506d4e6f840@changeid> X-Mailer: git-send-email 2.25.0.265.gbab2e86ba0-goog In-Reply-To: <20200221053802.70716-1-evanbenn@chromium.org> References: <20200221053802.70716-1-evanbenn@chromium.org> MIME-Version: 1.0 Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org This watchdog can be used on ARM systems with a Secure Monitor firmware to forward watchdog operations to firmware via a Secure Monitor Call. Signed-off-by: Evan Benn --- Changes in v2: - Change name arm > mt8173 .../bindings/watchdog/mt8173,smc-wdt.yaml | 30 +++++++++++++++++++ MAINTAINERS | 6 ++++ 2 files changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/mt8173,smc-wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/mt8173,smc-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mt8173,smc-wdt.yaml new file mode 100644 index 0000000000000..ff45e13bc548b --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/mt8173,smc-wdt.yaml @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/mt8173,smc-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM Secure Monitor Call based watchdog + +allOf: + - $ref: "watchdog.yaml#" + +maintainers: + - Julius Werner + +properties: + compatible: + enum: + - mt8173,smc-wdt + +required: + - compatible + +examples: + - | + watchdog { + compatible = "mt8173,smc-wdt"; + timeout-sec = <15>; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index e48ab79879ace..59e8779363c12 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1421,6 +1421,12 @@ S: Maintained F: Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt F: drivers/irqchip/irq-al-fic.c +ARM SMC WATCHDOG DRIVER +M: Julius Werner +R: Evan Benn +S: Maintained +F: devicetree/bindings/watchdog/mt8173,smc-wdt.yaml + ARM SMMU DRIVERS M: Will Deacon R: Robin Murphy