From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomeu Vizoso Subject: Re: [Gta04-owner] [PATCH 0/4] UART slave device support - version 4 Date: Fri, 22 Jan 2016 16:45:38 +0100 Message-ID: References: <481E05A9-A192-438D-B092-D7700B30BBC4@goldelico.com> <20160115110106.GA3262@leverpostej> <69F8E1E5-EF49-4C8E-88E9-973F82F7102E@goldelico.com> <569913A1.80606@cogentembedded.com> <56992959.2020204@hurleysoftware.com> <744620565.20160116103445@cogentembedded.com> <20160116233157.GA7774@rob-hp-laptop> <3D5F35D7-31B5-4E68-875F-7DD492EF0316@goldelico.com> <20160117141912.4aa2e46c@lxorguk.ukuu.org.uk> <1D5F146E-D347-453B-9158-8D269F8DA99C@goldelico.com> <20160117193849.69d00c28@lxorguk.ukuu.org.uk> <37DCE36D-0A5E-41C5-BDA4-857DCF9F2DD1@goldelico.com> <20160118111926.0882b422@lxorguk.ukuu.org.uk> <07F3B6C0-0C87-478C-B6DD-5C0EECB42D0D@goldelico.com> <20160118220319.051c9cc0@lxorguk.ukuu.org.uk> <9E37C552-361C-4A54-980E-E3BFFF834302@goldelico.com> <20160120174610.1c64239a@lxorguk.ukuu.org.uk> <39B850CE-E381-4D3B-BD0A-84AFE7DAEEDF@goldelico.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <39B850CE-E381-4D3B-BD0A-84AFE7DAEEDF-xXXSsgcRVICgSpxsJD1C4w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "H. Nikolaus Schaller" Cc: One Thousand Gnomes , Rob Herring , Vostrikov Andrey , Mark Rutland , Peter Hurley , Rob Herring , List for communicating with real GTA04 owners , NeilBrown , Arnd Bergmann , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Greg Kroah-Hartman , Sebastian Reichel , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Grant Likely , Jiri Slaby , Marek Belisko List-Id: devicetree@vger.kernel.org On 20 January 2016 at 19:03, H. Nikolaus Schaller wrote: > > Am 20.01.2016 um 18:46 schrieb One Thousand Gnomes : > >>> The problem is that *I* have no control over user space. But I also don't want >>> to say to my users "that is not my problem - get it solved yourself". This does >>> not help them. >> >> Stuffing things into the kernel because the user space of a given >> platform can't get itself organised isn't helpful to the other billion >> plus Linux devices out there. > > The assumption that there is "the" user space of a given platform is wrong. I'm a bit surprised at the arguments being exchanged here regarding why the kernel may or may not deal with the detail that a (say) BT chip is behind a uart. I would have expected that the main (and IMO sufficient) reason why the kernel should do it is because the particular bus used to connect a BT chip to the CPU is a hw detail that a kernel that does its job should keep to itself. Same as userspace not needing to care if a BT chip is behind SDIO or USB, why does it have to tell the kernel behind which UART a BT chip is sitting? Regards, Tomeu -- 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