From patchwork Wed Mar 12 13:14:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 3817551 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 221E89F1CD for ; Wed, 12 Mar 2014 13:20:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 483BA201B6 for ; Wed, 12 Mar 2014 13:20:21 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4460420179 for ; Wed, 12 Mar 2014 13:20:20 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNj4v-0004pY-3J; Wed, 12 Mar 2014 13:20:13 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNj03-0001ss-9c; Wed, 12 Mar 2014 13:15:11 +0000 Received: from mail-ig0-f182.google.com ([209.85.213.182]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WNj00-0001rv-LI for linux-arm-kernel@lists.infradead.org; Wed, 12 Mar 2014 13:15:09 +0000 Received: by mail-ig0-f182.google.com with SMTP id uy17so14155392igb.3 for ; Wed, 12 Mar 2014 06:14:47 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=jXYfs2IU1eBr4pnEKDgNghpXfQANB2Sk+LuD/RUX9iw=; b=RUUwCaQ9LuRddf1gg0q+Iv99DoBFoZccjkQTPf5u/T5eIg02xuGq1iY+NVT6G8iHL4 F0wMctjlwIk6MPz+4WmSWpfgi0bMqVZtTD/gcfgsYoL1O2qStSpD6x1Cn+rD46MgTFdq +lWAb4FWofrcFUSQ31yCSe61LDaEVIrx4FSOzPu63qOo1Pg0CVf3owdHrSiGeX2K/3O+ 8GeNPDP2cUqgD3Sb9vslLP6Sc9I7C8NBN4tidJih7PVKSGwK1R10X3Wo1fmWw8mmOcJg S7ySaafJiu3+WR6nEDsW6S6IBJy9ALqHiJmFdWVEzRaUjUh4CREllbHtls92Yj0ESKsS +T4w== X-Gm-Message-State: ALoCoQmF30C0Mzq5UQ/iJ82fGvnYHrogI20iL8uVk/pCOvAnrVeepVEpxfpCNIgXAdW3xUOy06aK X-Received: by 10.50.25.67 with SMTP id a3mr29304315igg.28.1394630084456; Wed, 12 Mar 2014 06:14:44 -0700 (PDT) Received: from beef.ohporter.com (cpe-98-27-254-98.neo.res.rr.com. [98.27.254.98]) by mx.google.com with ESMTPSA id w9sm58347567iga.10.2014.03.12.06.14.42 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 12 Mar 2014 06:14:43 -0700 (PDT) From: Matt Porter To: Alex Elder , Linux ARM Kernel List Subject: [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot Date: Wed, 12 Mar 2014 09:14:39 -0400 Message-Id: <1394630079-12063-1-git-send-email-mporter@linaro.org> X-Mailer: git-send-email 1.8.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140312_091508_735892_C13B5000 X-CRM114-Status: UNSURE ( 9.85 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.6 (--) Cc: Devicetree List , Mark Brown , bcm-kernel-feedback-list@broadcom.com, Christian Daudt , Linux Kernel Mailing List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 BCM28155-AP board has a bootloader that expects the camldo1 regulator to be enabled on entry. Currently, the camldo1 regulator is disabled when no longer in use as is the case during a reboot / warm reset. This causes the early bootloader to hang upon entry. Add regulator-always-on to the camldo1 constraint to fix reboot. Reported-by: Alex Elder Signed-off-by: Matt Porter Tested-by: Alex Elder --- [Depends on BCM59056 regulator series dts support: http://www.gossamer-threads.com/lists/linux/kernel/1885489] arch/arm/boot/dts/bcm28155-ap.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/bcm28155-ap.dts b/arch/arm/boot/dts/bcm28155-ap.dts index 99ff0c1..cc1303c 100644 --- a/arch/arm/boot/dts/bcm28155-ap.dts +++ b/arch/arm/boot/dts/bcm28155-ap.dts @@ -94,6 +94,7 @@ camldo1_reg: camldo1 { regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + regulator-always-on; }; sdldo_reg: sdldo {