From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: [PATCH 1/2 v2] device-tree: nexus7-flo: Remove power gpio key entry and use pmic8xxx-pwrkey Date: Sun, 17 Apr 2016 05:24:18 -0700 Message-ID: <20160417122418.GC33215@dtor-ws> References: <1460668031-12384-1-git-send-email-john.stultz@linaro.org> <20160415172212.GW391@tuxbot> <20160415185927.GN14441@codeaurora.org> <20160415220106.GZ391@tuxbot> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20160415220106.GZ391@tuxbot> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Bjorn Andersson Cc: Stephen Boyd , John Stultz , Stephen Boyd , lkml , Rob Herring , Arnd Bergmann , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Andy Gross , Vinay Simha BN , linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org On Fri, Apr 15, 2016 at 03:01:06PM -0700, Bjorn Andersson wrote: > On Fri 15 Apr 11:59 PDT 2016, Stephen Boyd wrote: > > [..] > > > ----8<----- > > From: Stephen Boyd > > Subject: [PATCH] Input: pmic8xxx-pwrkey: Fix algorithm for converting trigger > > delay > > > > The trigger delay algorithm that converts from microseconds to > > the register value looks incorrect. According to most of the PMIC > > documentation, the equation is > > > > delay (Seconds) = (1 / 1024) * 2 ^ (x + 4) > > > > except for one case where the documentation looks to have a > > formatting issue and the equation looks like > > > > delay (Seconds) = (1 / 1024) * 2 x + 4 > > > > Most likely this driver was written with the improper > > documentation to begin with. According to the downstream sources > > the valid delays are from 2 seconds to 1/64 second, and the > > latter equation just doesn't make sense for that. Let's fix the > > algorithm and the range check to match the documentation and the > > downstream sources. > > > > Reported-by: Bjorn Andersson > > Acked-by: Bjorn Andersson Applied, thank you. -- Dmitry -- 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