From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Chen Subject: Re: [PATCH v7 0/8] power: add power sequence library Date: Wed, 28 Sep 2016 07:53:42 +0800 Message-ID: <20160927235342.GA6165@b29397-desktop> References: <1474342607-27512-1-git-send-email-peter.chen@nxp.com> <57EB0109.4070000@maciej.szmigiero.name> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <57EB0109.4070000-APzI5cXaD1zVlRWJc41N0YvC60bnQu0Y@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Maciej S. Szmigiero" Cc: Peter Chen , mark.rutland-5wv7dgnIgG8@public.gmane.org, ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, stephen.boyd-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, stillcompiling-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, vaibhav.hiremath-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, mka-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org, dwmw3-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, troy.kisky-Q5RJGjKts06CY9SHAMCTRUEOCMrvLtNR@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, oscar-Bdbr4918Nnnk1uMJSBkQmQ@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org List-Id: devicetree@vger.kernel.org On Wed, Sep 28, 2016 at 01:30:17AM +0200, Maciej S. Szmigiero wrote: > On 20.09.2016 05:36, Peter Chen wrote: > > Hi all, > > > > This is a follow-up for my last power sequence framework patch set [1]. > > According to Rob Herring and Ulf Hansson's comments[2]. The kinds of > > power sequence instances will be added at postcore_initcall, the match > > criteria is compatible string first, if the compatible string is not > > matched between dts and library, it will try to use generic power sequence. > > > > The host driver just needs to call of_pwrseq_on/of_pwrseq_off > > if only one power sequence instance is needed, for more power sequences > > are used, using of_pwrseq_on_list/of_pwrseq_off_list instead (eg, USB hub driver). > > > > In future, if there are special power sequence requirements, the special > > power sequence library can be created. > > > > This patch set is tested on i.mx6 sabresx evk using a dts change, I use > > two hot-plug devices to simulate this use case, the related binding > > change is updated at patch [1/6], The udoo board changes were tested > > using my last power sequence patch set.[3] > > > > Except for hard-wired MMC and USB devices, I find the USB ULPI PHY also > > need to power on itself before it can be found by ULPI bus. > > > > [1] http://www.spinics.net/lists/linux-usb/msg142755.html > > [2] http://www.spinics.net/lists/linux-usb/msg143106.html > > [3] http://www.spinics.net/lists/linux-usb/msg142815.html > > Just tested this patch set on UDOO board again to make sure that it still > works after all changes done since it was last tested there and can confirm > that it does work correctly. > Thanks, Maciej. -- Best Regards, Peter Chen -- 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