Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753974AbbGCMeR (ORCPT ); Fri, 3 Jul 2015 08:34:17 -0400 Received: from mail-pa0-f53.google.com ([209.85.220.53]:32821 "EHLO mail-pa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755052AbbGCMeJ (ORCPT ); Fri, 3 Jul 2015 08:34:09 -0400 Date: Fri, 3 Jul 2015 14:32:48 +0200 From: Thierry Reding To: Daniel Vetter Cc: Benjamin Gaignard , linux-arm-msm , Linux Kernel Mailing List , dri-devel , Linux Fbdev development list , Tomi Valkeinen , Thierry Reding Subject: Re: [RFC 1/6] drm: Add top level Kconfig option for DRM fbdev emulation Message-ID: <20150703123246.GA29257@ulmo.nvidia.com> References: <54FFFAEE.3020301@codeaurora.org> <20150311151731.GJ3800@phenom.ffwll.local> <550282C3.10903@codeaurora.org> <20150313090651.GZ3800@phenom.ffwll.local> <55126F32.90404@codeaurora.org> <20150325092111.GT1349@phenom.ffwll.local> <55924BA6.4050309@codeaurora.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="82I3+IH0IqGh5yIs" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2228 Lines: 55 --82I3+IH0IqGh5yIs Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 30, 2015 at 11:04:45AM +0200, Daniel Vetter wrote: > On Tue, Jun 30, 2015 at 10:31 AM, Benjamin Gaignard > wrote: > > I think that what have been done by Rob with module_param is also a goo= d idea: > > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit= /drivers/gpu/drm/msm/msm_drv.c?id=3De90dfec78ec288d6c89a7b508a5c5d4ae8b7f934 > > > > Can you mix compilation flag and module param ? >=20 > Hm, the point of the kconfig is to not require all the legacy baggage > from fbdev. But I guess a module option could be added later on too. > bochs has it too. I think the option would primarily be useful for testing. I've often needed to test modesetting code without fbdev getting in the way and the only way to currently do that is by recompiling with legacy fbdev disabled. The option would allow an fbdev-enabled kernel to be used but disable the fbdev code if desired. Thierry --82I3+IH0IqGh5yIs Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJVloDoAAoJEN0jrNd/PrOhmrQP/RVOD086DKojEHpjbFEMERa0 oQh3Yl4Xq/8ub7TGpViDnxU2pOU1NNbPUjMsu4MDy/JLnarN3bHf09DiFkz9JZ0d G2iHVVmRxAX6RRbDXzeBkf4DSK6y2IsxSbQ+pTcd5ZAVBS8HsALmOsikDcXlXOf/ U4km1ikEYbTcwyoRA1+kdCVrOXKaXOCZgIWc9dD2eKIcoo0ffeos+Vpxh2aIk1dP avCl49qeGKZlArUoGahB5P8AOTPaqKte6NAlCZy4G2Y9F8RYtv+rx8Cs5JuYQs+h c1Ua9KuQu9zgi40qzWyMlFA9Q7KsXyOgMTSYtqOlucqIggbCHdjRrSFJ8I+7KAbg igVGGrjNdqP+mGs/mW6zDAd2q4QRoBXzR/Uf049ShQEv8Ti7xLo16xIcnfsXTi8y 86wWwFhMUdwUuOnoiumiK71YqMOrVnq+OJSdx/zopJHZjXtu/ySYupbwnTlB24ld eOUPgCooCUb7etmsXH4UBYHzzbf2bRqbyR1HnPj45wvfIph88MeRXy/EvspKpkli bkEoaun2iAphM7M6RksxAxxTVW1I+3H4KyX92PUAd70RD8J1T1RNljvJVgH0zQ58 6wzWpTTbGVm2EfgUWAq/EK/yOYmZF9fsDiAf8w/23ypaVFzhJPYJAwWAT4TKjUmj rp9DTZxyevAbdI+ndu2k =Dbke -----END PGP SIGNATURE----- --82I3+IH0IqGh5yIs-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/