From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Chen Subject: Re: [PATCH v13 00/12] power: add power sequence library Date: Wed, 15 Feb 2017 09:38:09 +0800 Message-ID: <20170215013808.GB6579@b29397-desktop> References: <1486776443-2280-1-git-send-email-peter.chen@nxp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Roger Quadros Cc: Peter Chen , gregkh@linuxfoundation.org, stern@rowland.harvard.edu, ulf.hansson@linaro.org, broonie@kernel.org, sre@kernel.org, robh+dt@kernel.org, shawnguo@kernel.org, rjw@rjwysocki.net, dbaryshkov@gmail.com, mark.rutland@arm.com, heiko@sntech.de, stephen.boyd@linaro.org, frank.li@nxp.com, gary.bisson@boundarydevices.com, festevam@gmail.com, stillcompiling@gmail.com, arnd@arndb.de, vaibhav.hiremath@linaro.org, krzk@kernel.org, mka@chromium.org, devicetree@vger.kernel.org, mail@maciej.szmigiero.name, pawel.moll@arm.com, linux-pm@vger.kernel.org, s.hauer@pengutronix.de, troy.kisky@boundarydevices.com, linux-arm-kernel@lists.infradead.org, hverkuil@xs4all.nl, oscar@naiandei.net, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, p.zabel@pengutronix.de List-Id: devicetree@vger.kernel.org On Tue, Feb 14, 2017 at 12:21:48PM +0200, Roger Quadros wrote: > Peter, > > On 11/02/17 03:27, 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. > > Can patches 3-7 can be sent independently of the power related patches? > Yes, I had planned to submit patches 3-7 for v4.11-rc1 today first, but it seems you still have comments for patch 6, let's wait a conclusion first. -- Best Regards, Peter Chen