From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Elder Subject: Re: [PATCH] ARM: dts: bcm28155-ap: leave camldo1 on to fix reboot Date: Wed, 12 Mar 2014 08:16:19 -0500 Message-ID: <53205E23.8030905@ieee.org> References: <1394630079-12063-1-git-send-email-mporter@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1394630079-12063-1-git-send-email-mporter@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Matt Porter , Alex Elder , Linux ARM Kernel List Cc: Mark Brown , Christian Daudt , Devicetree List , bcm-kernel-feedback-list@broadcom.com, Linux Kernel Mailing List List-Id: devicetree@vger.kernel.org On 03/12/2014 08:14 AM, Matt Porter wrote: > 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 { >