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Date: Fri, 20 Dec 2013 18:15:25 -0800 From: Sherman Yin <syin@...adcom.com> To: Arnd Bergmann <arnd@...db.de>, Linus Walleij <linus.walleij@...aro.org> CC: Bjorn Andersson <bjorn.andersson@...ymobile.com>, Christian Daudt <bcm@...thebug.org>, Mark Rutland <mark.rutland@....com>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Russell King <linux@....linux.org.uk>, Heiko St?bner <heiko@...ech.de>, Pawel Moll <pawel.moll@....com>, Stephen Warren <swarren@...dotorg.org>, Ian Campbell <ijc+devicetree@...lion.org.uk>, "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Rob Herring <rob.herring@...xeda.com>, bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>, Rob Landley <rob@...dley.net>, Grant Likely <grant.likely@...aro.org>, Matt Porter <matt.porter@...aro.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Subject: Re: [PATCH v3 3/6] pinctrl: Make PINCTRL selectable by defconfig/menuconfig On 13-12-20 12:58 PM, Arnd Bergmann wrote: > On Friday 20 December 2013, Linus Walleij wrote: >> On Tue, Dec 17, 2013 at 1:18 AM, Bjorn Andersson >> <bjorn.andersson@...ymobile.com> wrote: >> >>> No matter how we build the individual pinctrl drivers we will always >>> need the pinctrl framework in a multi-soc zImage; so I can't see that >>> we gain anything from being able to compile PINCTRL as a module. >> >> I discussed this matter with Christian on IRC and I believe we could >> basically do "select PINCTRL" on ARCH_MULTIPLATFORM as the >> vast majority of multiplatforms appear to be using this anyway, this >> would make the submenu for pin control pop up in menuconfig >> for this, and make it possible to move different subdrivers to modules >> if desired. >> >> MULTIPLATFORM does not seem to be about saving footprint bytes >> on a very fine-granular level anyway, more about doing the module >> loading/unloading approach to footprint. > > Let's review the list of platforms that don't select PINCTRL. There > are some platforms that are indeed sensitive about memory footprint, > and I promised people that converting to multiplatform won't cause > a significant increase in kernel binary size as long as no other > platforms are enabled. > > Arnd > Ok, for this driver, I'll just select PINCTRL under the ARCH_BCM_MOBILE. We can move this to ARCH_MULTIPLATFORM once we're sure this is okay for other platforms. Regards, Sherman -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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