From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leonard Crestez Subject: Re: [RFC 8/8] ARM: dts: imx6qdl-sabresd: Enable fsl,ldo-bypass Date: Wed, 29 Mar 2017 16:32:23 +0300 Message-ID: <1490794343.5481.33.camel@nxp.com> References: <8f4dca5609781f0362009dfa7f6d5c0990b5ea6d.1490199005.git.leonard.crestez@nxp.com> <1490202830.29056.8.camel@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <1490202830.29056.8.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Lucas Stach Cc: Mark Brown , Liam Girdwood , Viresh Kumar , "Rafael J. Wysocki" , Shawn Guo , Sascha Hauer , Mark Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Anson Huang , Irina Tirdea , linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Rob Herring , Octavian Purdila , Fabio Estevam , Robin Gong , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org 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 -- 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