From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Subject: Re: [PATCH V2] video: implement a simple framebuffer driver Date: Tue, 30 Apr 2013 13:49:28 +0200 Message-ID: <124304591.tbnLlR41q2@avalon> References: <1365043183-28905-1-git-send-email-swarren@wwwdotorg.org> <1547536.Us4pVspuI2@avalon> <517FAF78.1010306@ti.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============5573838928152039871==" Return-path: In-Reply-To: <517FAF78.1010306-l0cyMroinI0@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: Tomi Valkeinen Cc: linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Tomasz Figa , Rob Clark , Geert Uytterhoeven , linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Andrew Morton , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org --===============5573838928152039871== Content-Type: multipart/signed; boundary="nextPart2710109.8gOsri3Y4h"; micalg="pgp-sha1"; protocol="application/pgp-signature" --nextPart2710109.8gOsri3Y4h Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" On Tuesday 30 April 2013 14:48:08 Tomi Valkeinen wrote: > On 04/30/2013 02:42 PM, Laurent Pinchart wrote: > > On Tuesday 30 April 2013 12:28:42 Arnd Bergmann wrote: > >> On Tuesday 30 April 2013, Tomi Valkeinen wrote: > >>> The bootloader would init the display hardware, the bootfb would give an > >>> early /dev/fb0 for the kernel and userspace, and when the real display > >>> driver is loaded, the bootfb would be unbound and the real driver would > >>> take over. > > > > This could be done with a KMS driver as well ;-) > > Right, I forgot to mention that. I had it in mind also =). > > DRM has the same problem as fbdev with multi-arch and lots of display > and panel drivers. > > Probably the same bootfb could be used for DRM also. Or do you see any > benefit of having a "bootkms" driver, or such? As part of the (long term) effort to deprecate fbdev I would of course prefer a bootkms driver. The KMS fbdev emulation layer would provide fbdev compatibility for free during the transition. -- Regards, Laurent Pinchart --nextPart2710109.8gOsri3Y4h Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQEcBAABAgAGBQJRf6/NAAoJEIkPb2GL7hl1c3sIAIZZdaRLBo+Hus0WbLtABrCK CkCYelaTN4BDe25gcBeCx4Ns/7+9d0GS1O1Zbe6EWZDwi31ZrU7d8bpqvsfHqbjC 5EOOemg9tBaYBirrM1Mip7CKUK1dD/BJjwgHhK5HUIzASlLcPO4jfUHUF5CBn9Q1 bj6po94j4RDQ1eq0andgRSIO/5KwHtHCo4anXYLYQm/hz6bTByEVQ3uTPwZZSUBH CtpLobbpnmfdupfZlFE2coFpLYg2ssbtxhAfQMiV5YSfjtDVuIh3z2MIytsSEjIZ GIcOwhMULf6tHq82UYTllbddTwjXEIyChgSCVRkk3Hlj2Owy3I9P11bboR9JAZI= =D52O -----END PGP SIGNATURE----- --nextPart2710109.8gOsri3Y4h-- --===============5573838928152039871== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ devicetree-discuss mailing list devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org https://lists.ozlabs.org/listinfo/devicetree-discuss --===============5573838928152039871==--