Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752579AbcD0IlK (ORCPT ); Wed, 27 Apr 2016 04:41:10 -0400 Received: from mail-io0-f194.google.com ([209.85.223.194]:32779 "EHLO mail-io0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750721AbcD0IlE (ORCPT ); Wed, 27 Apr 2016 04:41:04 -0400 MIME-Version: 1.0 In-Reply-To: <6883809.SRgmlLMdyd@wuerfel> References: <1461707052-1337718-1-git-send-email-arnd@arndb.de> <6883809.SRgmlLMdyd@wuerfel> Date: Wed, 27 Apr 2016 10:41:02 +0200 X-Google-Sender-Auth: itD9HYBbY_EX5RjHmF6dvV1GZG4 Message-ID: Subject: Re: char: legacy RTC cleanups From: Geert Uytterhoeven To: Arnd Bergmann Cc: Greg Kroah-Hartman , Tony Luck , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Michael Ellerman , Rich Felker , David Howells , Koichi Yasutake , Richard Henderson , Ivan Kokshaysky , alpha , "the arch/x86 maintainers" , Alessandro Zummo , Alexandre Belloni , "linux-kernel@vger.kernel.org" , "linux-ia64@vger.kernel.org" , Parisc List , "linuxppc-dev@lists.ozlabs.org" , Linux-sh list , RTCLINUX , Linux-Arch Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1670 Lines: 40 Hi Arnd, On Wed, Apr 27, 2016 at 10:33 AM, Arnd Bergmann wrote: > On Wednesday 27 April 2016 09:54:41 Geert Uytterhoeven wrote: >> On Tue, Apr 26, 2016 at 11:44 PM, Arnd Bergmann wrote: >> > For the genrtc driver, rearranging the headers makes it simpler >> > to use and reduces duplication. In case of alpha and mn10300, >> > I've shown that the genrtc and rtc drivers are doing the same >> > thing, so we don't need them both. The remaining three >> > architectures (m68k, parisc, powerpc) actually all support >> > the newer rtc-generic driver, so we could remove genrtc completely >> > if we want to. >> >> CONFIG_GEN_RTC is not enabled in any of the m68k defconfigs, so I think genrtc >> has been unused for a while. >> All defconfigs either use CONFIG_RTC_DRV_GENERIC, or enable a more specific >> RTC driver. > > Ok, good to know. I'm guessing the same is true for parisc, but there are > also very few users. > > Regarding the Q40 specific ioctls, what do you think this means, is it > > a) nobody uses Q40 with modern kernels, > b) nobody calls RTC_PLL_GET/RTC_PLL_SET on q40, or > c) Q40 users have their own configurations and enable GEN_RTC? To be honest, I have no idea. There have never been many Q40 users. (old) http://www.linux-m68k.org/Registry/Statistics.html shows only 8. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds