From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH v2 01/18] ARM: am57xx: cl-som-am57x: dts: add basic module support Date: Tue, 1 Dec 2015 09:03:01 -0800 Message-ID: <20151201170301.GU23396@atomide.com> References: <1448433590-1399-2-git-send-email-lifshitz@compulab.co.il> <1448893551-676-1-git-send-email-lifshitz@compulab.co.il> <20151130215415.GE23396@atomide.com> <565DC9CC.1070000@compulab.co.il> <20151201164317.GS23396@atomide.com> <565DCF34.8070001@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <565DCF34.8070001-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Nishanth Menon Cc: Dmitry Lifshitz , linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Igor Grinberg , Nikita Kiryanov , Ian Campbell List-Id: devicetree@vger.kernel.org * Nishanth Menon [151201 08:48]: > On 12/01/2015 10:43 AM, Tony Lindgren wrote: > > * Dmitry Lifshitz [151201 08:26]: > >> > >> It might looks the same set of regulators for multiple boards, > >> but it is not. Each board may apply its own regulators usage scheme, and > >> this is our case (as compared to am57xx-beagle-x15.dts). > >> > >> For the best of my knowledge, it used to be in a common *.dtsi file (at > >> least in early OMAP5 DT support in TI kernel tree), but then I found that > >> PMIC registration had been moved to the boards DT files. > > > > Have you actually looked at how much of the implementation is same across > > the omap5 boards? My guess is that a whole lot is same.. See for example > > omap5-board-common.dtsi. > > Unfortunately with DRA7 / AM57xx: > at least 2 different PMICs -> DRA74/DRA72 evms. > even across similar PMIC usage, different voltage rail usage accross > evms: DRA74evm, x15/GPEVM, AM571x-IDK/AM572x-IDK -> they are not > necessarily compatible. > > Example: some of them have Ganged voltage rail, others dont - few others > are mixed. if you are trying to get common regulator usage -> it is > kinda pretty hard given the freedom board designers are being given by > TI.. OMAP5 was more controlled in terms of what specific configuration > the board designers had to follow. that is no longer the case for > DRA7/AM57 platforms. just my 2 cents here. OK thanks for checking. Best to wait a bit on that then until we have more common patterns. Regards, Tony -- 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