From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Christophe PLAGNIOL-VILLARD Subject: Re: Pulls and drive strengths in the pinctrl world Date: Fri, 24 May 2013 11:10:52 +0200 Message-ID: <20130524091052.GK1952@game.jcrosoft.org> References: <1855701.nJQdRzsWsg@flatron> <20130518163001.GE1952@game.jcrosoft.org> <91263163.s2uhtsH4YZ@flatron> <20130519091736.GF1952@game.jcrosoft.org> <519E8D41.9040508@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <519E8D41.9040508-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "devicetree-discuss" To: Stephen Warren Cc: Kukjin Kim , "devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org" , linux-samsung-soc , Tomasz Figa , Doug Anderson List-Id: devicetree@vger.kernel.org On 15:42 Thu 23 May , Stephen Warren wrote: > On 05/19/2013 03:17 AM, Jean-Christophe PLAGNIOL-VILLARD wrote: > ... > > how a pin can not have mux? > > Well, if that's the way HW is designed, that's just the way it is. > > There are certainly pins on Tegra which don't have a mux in HW, but have > some configuration options such as drive strength that can be configured. on Samsung it's not the case I mean on at91 we have fixed mux and configurable mux On Tegra IIRC it's the same Best Regards, J. >