From patchwork Thu Sep 10 10:39:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Ferre X-Patchwork-Id: 7153381 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 7291D9F314 for ; Thu, 10 Sep 2015 10:41:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8AE6620873 for ; Thu, 10 Sep 2015 10:41:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B2F8F20877 for ; Thu, 10 Sep 2015 10:41:20 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZZzGc-0005OP-6o; Thu, 10 Sep 2015 10:39:46 +0000 Received: from eusmtp01.atmel.com ([212.144.249.243]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZZzGZ-00055a-3V for linux-arm-kernel@lists.infradead.org; Thu, 10 Sep 2015 10:39:43 +0000 Received: from tenerife.corp.atmel.com (10.161.101.13) by eusmtp01.atmel.com (10.161.101.31) with Microsoft SMTP Server id 14.3.235.1; Thu, 10 Sep 2015 12:39:16 +0200 From: Nicolas Ferre To: , , Alexandre Belloni , Maxime Ripard , , , Subject: [PATCH 2/3] ARM: at91/dt: shdwc binding: add new shutdown controller documentation Date: Thu, 10 Sep 2015 12:39:17 +0200 Message-ID: <0a211dfea397ef20c9c6b5f4e23d42699fbd69b1.1441881064.git.nicolas.ferre@atmel.com> X-Mailer: git-send-email 2.1.3 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150910_033943_529433_9315A344 X-CRM114-Status: UNSURE ( 7.83 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicolas Ferre , Jean-Christophe PLAGNIOL-VILLARD , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The new shutdown controller compatible with sama5d2 has a new binding documentation and properties. Signed-off-by: Nicolas Ferre --- .../devicetree/bindings/arm/atmel-at91.txt | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt index 7fd64ec9ee1d..ec4b183005e4 100644 --- a/Documentation/devicetree/bindings/arm/atmel-at91.txt +++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt @@ -147,6 +147,58 @@ Example: clocks = <&clk32k>; }; +SHDWC Shutdown Controller (Alternative) + +1) shdwc node + +required properties: +- compatible: should be "atmel,sama5d2-shdwc". +- reg: should contain registers location and length +- #address-cells: should be one. The cell is the wake-up input index. +- #size-cells: should be zero. + +optional properties: + +- atmel,wakeup-debouncer: minimum wake-up inputs debouncer period in + micro-seconds. It's usually a board-related property. +- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up. + +The node contains child nodes for each wake-up input that the platform uses. + +2) input nodes + +Wake-up input nodes are usually described in the "board" part of the Device +Tree. Note also that input 0 is linked to the wake-up pin and is frequently +used. + +Required properties: +- reg: should contain the wake-up input index [0 - 15]. + +Optional properties: +- atmel,wakeup-type: string, operation mode of the input described by the child + node. Supported values are: "high" or "low". + +Example: + +On the SoC side: + shdwc@f8048010 { + compatible = "atmel,sama5d2-shdwc"; + reg = <0xf8048010 0x10>; + #address-cells = <1>; + #size-cells = <0>; + atmel,wakeup-rtc-timer; + }; + +On the board side: + shdwc@f8048010 { + atmel,shdwc-debouncer = <976>; + + input@0 { + reg = <0>; + atmel,wakeup-type = "low"; + }; + }; + Special Function Registers (SFR) Special Function Registers (SFR) manage specific aspects of the integrated