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Date: Wed, 29 Mar 2017 16:32:23 +0300 From: Leonard Crestez <leonard.crestez@....com> To: Lucas Stach <l.stach@...gutronix.de> CC: Mark Brown <broonie@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, Viresh Kumar <viresh.kumar@...aro.org>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <kernel@...gutronix.de>, Mark Rutland <mark.rutland@....com>, <devicetree@...r.kernel.org>, Anson Huang <Anson.Huang@....com>, Irina Tirdea <irina.tirdea@....com>, <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>, "Octavian Purdila" <octavian.purdila@....com>, Fabio Estevam <fabio.estevam@....com>, Robin Gong <yibin.gong@....com>, <linux-arm-kernel@...ts.infradead.org> Subject: Re: [RFC 8/8] ARM: dts: imx6qdl-sabresd: Enable fsl,ldo-bypass On Wed, 2017-03-22 at 18:13 +0100, Lucas Stach wrote: > Am Mittwoch, den 22.03.2017, 18:53 +0200 schrieb Leonard Crestez: > > This enables LDO bypass by default on the imx6qdl-sabresd boards. New > > dts files with -ldo suffix are added for users who want to run with LDOs > > enabled on these boards anyway. > Given that using LDO bypass affects the device lifetime negatively (see > AN4724), I think the default should still be to use LDO enabled mode and > have new DTs for people that desire to shorten the lifetime of the SoC > for a minimal drop in power consumption. This was based on what the Freescale BSP does, I don't particularly object to upstream having a different default. It would be nice for testing if this ldo-bypass path was enabled by default for some boards but it's not a very good reason. I will switch the default. -- Regards, Leonard
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