From patchwork Thu Oct 1 12:48:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 7308631 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C8EA4BEEA4 for ; Thu, 1 Oct 2015 12:51:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EE9D82066E for ; Thu, 1 Oct 2015 12:51:19 +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 A8C8F20638 for ; Thu, 1 Oct 2015 12:51:18 +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 1ZhdIF-0006u1-OK; Thu, 01 Oct 2015 12:49:03 +0000 Received: from smtp.csie.ntu.edu.tw ([140.112.30.61]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZhdID-0006rs-5N for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2015 12:49:01 +0000 Received: from mirror2.csie.ntu.edu.tw (mirror2.csie.ntu.edu.tw [140.112.30.76]) (Authenticated sender: b93043) by smtp.csie.ntu.edu.tw (Postfix) with ESMTPSA id 4178F2026F; Thu, 1 Oct 2015 20:48:40 +0800 (CST) Received: by mirror2.csie.ntu.edu.tw (Postfix, from userid 1000) id F0C195F846; Thu, 1 Oct 2015 20:48:39 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard Subject: [PATCH v2] ARM: dts: sun6i: hummingbird: Add aliases for rtc devices Date: Thu, 1 Oct 2015 20:48:29 +0800 Message-Id: <1443703709-24835-1-git-send-email-wens@csie.org> X-Mailer: git-send-email 2.5.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151001_054901_351173_F05A0B0A X-CRM114-Status: UNSURE ( 9.01 ) 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: devicetree@vger.kernel.org, Chen-Yu Tsai , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hans de Goede MIME-Version: 1.0 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 hummingbird A31 has 2 rtc devices available: one in the SoC, and a pcf8563 external rtc on i2c2. For some unknown reason, the onboard backup battery alone can not supply enough power to the internal rtc. When external power is removed, the internal rtc would reset. Hence we want to use the external one by default. Add aliases for the rtc devices with the external one as rtc0. Signed-off-by: Chen-Yu Tsai --- Changes since v1: - Cleared up commit message --- arch/arm/boot/dts/sun6i-a31-hummingbird.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts index 06d9391ca30e..358781113582 100644 --- a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts +++ b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts @@ -55,6 +55,8 @@ aliases { serial0 = &uart0; + rtc0 = &pcf8563; + rtc1 = &rtc; }; chosen {