From patchwork Thu Sep 11 13:18:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 388237 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from mail-we0-x23e.google.com (mail-we0-x23e.google.com [IPv6:2a00:1450:400c:c03::23e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 8A71414008B for ; Thu, 11 Sep 2014 23:22:04 +1000 (EST) Received: by mail-we0-f190.google.com with SMTP id t60sf597682wes.17 for ; Thu, 11 Sep 2014 06:21:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlegroups.com; s=20120806; h=mime-version:from:to:cc:subject:date:message-id:in-reply-to :references:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:list-post:list-help :list-archive:sender:list-subscribe:list-unsubscribe:content-type; bh=9F79bdZ8vZDCjgu1mxjSzBXd3hbrRWJTcrj1bUriIhY=; b=Y5N8dJoBJAeYobEPAA3CJ04n37LBQx8plV/beA8OBYn0v4u3rBqDfC4CwGOQH8Tyew XY5caD+7uG1AeFvODGpXn8NdKWHt9vCAyZDj1aRfaqT97y7I4JkT9M55sur4y924nDvo aztF+ZqTIu8J1Oy+aNRS4d3sC44040X2anxpNyCoCYSD4CFTndmsy1WF0Zza9McY/O7C iULfmmrSy2je5xkvY4u/A6LDCxsXmJVkWhMjb4BwDvqkQ56cjIK82z4C4Z8ugZ0sD9t2 2xyhiMXArvVfbx7ehLiq29pxqDydRE+ysHMA0v6NsUTHAOtsLF7w8q0YhFNkMvWPL7CX gRIQ== X-Received: by 10.180.14.101 with SMTP id o5mr10863wic.2.1410441717189; Thu, 11 Sep 2014 06:21:57 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: rtc-linux@googlegroups.com Received: by 10.180.94.135 with SMTP id dc7ls101409wib.36.gmail; Thu, 11 Sep 2014 06:21:56 -0700 (PDT) X-Received: by 10.194.100.3 with SMTP id eu3mr38961wjb.6.1410441716874; Thu, 11 Sep 2014 06:21:56 -0700 (PDT) Received: from mail.free-electrons.com (top.free-electrons.com. [176.31.233.9]) by gmr-mx.google.com with ESMTP id h1si117228wib.0.2014.09.11.06.21.56 for ; Thu, 11 Sep 2014 06:21:56 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning boris.brezillon@free-electrons.com does not designate 176.31.233.9 as permitted sender) client-ip=176.31.233.9; Received: by mail.free-electrons.com (Postfix, from userid 106) id 8D1A98AF; Thu, 11 Sep 2014 15:21:58 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost.localdomain (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id 275586D7; Thu, 11 Sep 2014 15:18:59 +0200 (CEST) From: Boris BREZILLON To: Nicolas Ferre , Jean-Christophe Plagniol-Villard , Alexandre Belloni , Andrew Victor , Alessandro Zummo , rtc-linux@googlegroups.com, Johan Hovold Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Boris BREZILLON Subject: [rtc-linux] [PATCH v4 9/9] mfd: syscon: add Atmel GPBR DT bindings documention Date: Thu, 11 Sep 2014 15:18:45 +0200 Message-Id: <1410441525-25258-10-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1410441525-25258-1-git-send-email-boris.brezillon@free-electrons.com> References: <1410441525-25258-1-git-send-email-boris.brezillon@free-electrons.com> X-Original-Sender: boris.brezillon@free-electrons.com X-Original-Authentication-Results: gmr-mx.google.com; spf=softfail (google.com: domain of transitioning boris.brezillon@free-electrons.com does not designate 176.31.233.9 as permitted sender) smtp.mail=boris.brezillon@free-electrons.com Reply-To: rtc-linux@googlegroups.com Precedence: list Mailing-list: list rtc-linux@googlegroups.com; contact rtc-linux+owners@googlegroups.com List-ID: X-Google-Group-Id: 712029733259 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , The GPBR block provides a set of battery-backed registers that can be used to save data which need to be kept when the system is powered down and VDD-core is maintained by an external battery. A typical usage is the RTT block (when used as an RTC) which needs one of those registers to save the current time. Signed-off-by: Boris BREZILLON --- Documentation/devicetree/bindings/mfd/atmel,gpbr.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/atmel,gpbr.txt diff --git a/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt new file mode 100644 index 0000000..a285695 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt @@ -0,0 +1,15 @@ +* Device tree bindings for Atmel GPBR (General Purpose Backup Registers) + +The GPBR are a set of battery-backed registers. + +Required properties: +- compatible: "atmel,at91sam9260-gpbr", "syscon" +- reg: contains offset/length value of the GPBR memory + region. + +Example: + +gpbr: gpbr@fffffd50 { + compatible = "atmel,at91sam9260-gpbr", "syscon"; + reg = <0xfffffd50 0x10>; +};