From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xHg5Y28g5zDqmV for ; Thu, 27 Jul 2017 02:08:49 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=aj.id.au header.i=@aj.id.au header.b="u07HqSyv"; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.b="MW4ziolP"; dkim-atps=neutral Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 0222C20823; Wed, 26 Jul 2017 12:08:47 -0400 (EDT) Received: from frontend2 ([10.202.2.161]) by compute4.internal (MEProxy); Wed, 26 Jul 2017 12:08:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=cc :date:from:in-reply-to:message-id:references:subject:to :x-me-sender:x-me-sender:x-sasl-enc:x-sasl-enc; s=fm1; bh=T9Ury7 BsPRJfc7vm37faWh99tBZTts1DVcbpT4xL8sw=; b=u07HqSyvzIgNE90MXlLE1b KiHu9Q+eRN483wTrO79V/9OQoLZl/oTzceQLofxEwpvAy0c3nbzsj/BuXi4TWMV+ 7BjBuE/PMfltRSQTrDyUAaPfXHtwqd1JXcDLWnYnUi8q2MX2uSgYG9SIAeFJd1+B Nadsb4mbN7/T/RFKWN3U7A/VlfH7t3fN4psBRCjmLXWh+sLJOCqEiJ1eKfq5SsbR AEd1v7CFgVJn61NnEPC3urI9P9tM57Ss5RtJCCZGvgohPggLv3cNkLJCYKE/u8vv meWEBAlCo42irqjflxtXX8zp/UB8wvr8jwicu3gtVz3KZ5C+aZaj1VbHYP3UqwGA == DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:date:from:in-reply-to:message-id :references:subject:to:x-me-sender:x-me-sender:x-sasl-enc :x-sasl-enc; s=fm1; bh=T9Ury7BsPRJfc7vm37faWh99tBZTts1DVcbpT4xL8 sw=; b=MW4ziolP7vF54VEZqoinqMFdx2sSJlUkZz2FWw31RlDuhdAr2RSIJcO/u HgNlcYcm1fsB2tOOxR4/InylfpyhMSI3oid4EPpsdvA6D2HAmuOwsI2uoi0K2X0U LiKEbnF8Erl3hiBGLSrCrL60HSgBgbLes/p9jWnuc1vzAlkSNKvxZEr4hYKgXEXP 4pC9iZFqZTmosIz9tEqluqRg57hVTcQFY5sX6YxtyCR8xETlOxG8cbcujWNQwreR 8Bsod347V9u2l97YJCpWhSWtv+9z+k/Az0SP9kEPFVY9kWCaDl5jpyh8X4aWnWqF TzEmiHy6iWKE0VP9YnlRYih3nt6xw== X-ME-Sender: X-Sasl-enc: 6SBMpc6BhkB3sNbbB5CjTNexqLCXjlkiiFwGovaXMuwP 1501085326 Received: from keelia.aj.id.au (ppp118-210-176-216.bras2.adl6.internode.on.net [118.210.176.216]) by mail.messagingengine.com (Postfix) with ESMTPA id BDA882414B; Wed, 26 Jul 2017 12:08:44 -0400 (EDT) From: Andrew Jeffery To: joel@jms.id.au Cc: Andrew Jeffery , mspinler@linux.vnet.ibm.com, msbarth@linux.vnet.ibm.com, openbmc@lists.ozlabs.org Subject: [PATCH linux dev-4.10 v2 2/4] dt-bindings: watchdog: aspeed: External reset signal properties Date: Thu, 27 Jul 2017 01:38:29 +0930 Message-Id: <20170726160831.17867-3-andrew@aj.id.au> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170726160831.17867-1-andrew@aj.id.au> References: <20170726160831.17867-1-andrew@aj.id.au> X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jul 2017 16:08:50 -0000 For the AST2500 and compatible watchdog controllers the external reset signal can be configured for push-pull or open-drain drive types, and in the case of open-drain driving, active low or high. Signed-off-by: Andrew Jeffery --- Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt index f526b003b2e0..fa661319a080 100644 --- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt @@ -41,6 +41,13 @@ Optional properties: specified no external signal is sent. - aspeed,alt-boot: If property is present then boot from alternate block. +Optional properties for AST2500-compatible watchdogs: + - aspeed,ext-push-pull: If aspeed,external-signal is present, set the pin's + drive type to push-pull. The default is open-drain. + - aspeed,ext-active-high: If aspeed,external-signal is present and and the pin + is configured as open-drain, then set the pulse + polarity to active-high. The default is active-low. + Example: wdt1: watchdog@1e785000 { -- 2.11.0