From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keerthy Subject: Re: [PATCH 0/3] ARM: dts: AM43x: Fix DCDC3 regulator voltage Date: Fri, 7 Nov 2014 10:16:25 +0530 Message-ID: <545C4EA1.5000802@ti.com> References: <1415271004-10935-1-git-send-email-j-keerthy@ti.com> <20141106182526.GC31454@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20141106182526.GC31454-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tony Lindgren Cc: Keerthy , linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org List-Id: devicetree@vger.kernel.org On Thursday 06 November 2014 11:55 PM, Tony Lindgren wrote: > * Keerthy [141106 02:55]: >> Fix DCDC3 volatge to 1.5V which is the right value to be supplied by >> DCDC3 for all the boards. > Hmm so what about the comments for similar beaglebone changes > in thread "[PATCH] ARM: dts: am335x-boneblack: set dcdc1 regulator > for 1.35v ddr3"? Hi Tony, am335x uses TPS65917 PMIC and am43x* use TPS65218 PMIC. The latest TPS65218 defaults to 1.5V. We see boot hangs when there is a voltage change from 1.5V to 1.35V in case of AM43x boards. Hence keeping it at 1.5V. Regards, Keerthy > > Regards, > > Tony > >> Keerthy (3): >> ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltage >> ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltage >> ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltage >> >> arch/arm/boot/dts/am437x-gp-evm.dts | 4 ++-- >> arch/arm/boot/dts/am437x-sk-evm.dts | 4 ++-- >> arch/arm/boot/dts/am43x-epos-evm.dts | 4 ++-- >> 3 files changed, 6 insertions(+), 6 deletions(-) >> >> -- >> 1.7.9.5 >> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html