From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Subject: Re: omap DSS fails with tft410 driver panel? Date: Thu, 29 Nov 2012 16:31:47 +0200 Message-ID: <50B771D3.8050907@ti.com> References: <50ADE6A5.3030001@ti.com> <50AF37EA.3080400@ti.com> <50B4A4D7.2070203@ti.com> <50B74592.3020308@ti.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig9F6AA889AFC061B5EFDB7FF6" Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:52300 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754673Ab2K2Obw (ORCPT ); Thu, 29 Nov 2012 09:31:52 -0500 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Steve Sakoman Cc: Enric Balletbo Serra , "linux-omap@vger.kernel.org" , Tony Lindgren , Javier Martinez Canillas --------------enig9F6AA889AFC061B5EFDB7FF6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2012-11-29 16:18, Steve Sakoman wrote: > On Thu, Nov 29, 2012 at 3:22 AM, Tomi Valkeinen = wrote: >> On 2012-11-27 21:15, Steve Sakoman wrote: >>> It seems that dss_mgr_check_timings is being called with a null dssde= v->manager. >>> >>> Other than the fact that there should be a null pointer check in the >>> code, it seems that this is a regression since it used to be possible= >>> to switch the default display in this fashion. Is this no longer >>> allowed? >> >> It is allowed. Which kernel is that? I tried v3.7-rc4 and the current >> omapdss master, both work for me with overo + lcd43 add on. >=20 > It is stock Linux 3.6 (i.e. commit a0d271cbfed1dd50278c6b06bead3d00ba0a= 88f9) Still can't reproduce. So does the null pointer deref happen at boot time? What display related kernel boot options do you have? This looks funny, considering lcd43 is a bit smaller lcd: [ 3.483062] fbcvt: 1024x768@60: CVT Name - .786M3-R Tomi --------------enig9F6AA889AFC061B5EFDB7FF6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQIcBAEBAgAGBQJQt3HTAAoJEPo9qoy8lh71bKYQAK3zmyW1eL04IIFK69maqubQ kob3nrDGJ2ae9S6CKt7M/wu9LA64irhmmlbzSufuLDjjPlPBMP7j1L6MkQY6Iqi8 lK3KlV+OroXtrys6ZNDDfd4Vd920tgQPVr+eBewQM8NZbuw2yYdMswVYuD44qBVa RpsEpL73CpBSJfwqp6U+2MPc77C3aWJep/MTVM6kaaxbX8CZSggfdzEFHzFM02oy 9LZ4huvF4ZZ9jXDcdidUGldHvPH+UBusq4jEHY3Bk51BmqLacNW3fVDO4vKaJDIM oaPi15ytbpeti0ryEX7ZKTT8yUh7gNPZJ3wSCl0BKwAyAovuuflDL1LZMm0NlxDB ZH2cWgNDAKZsP4tXrI6bktU/so/OvSXFJy2w0SVBGVThj/wzUmKBAWIzToDwVxfn efk0EzHv23BIMr7cdsbdQzsa3Lg1oVjbkYawRmJIZJdMSFzWSHcIA8NXWZpxH63/ AVlCZyS+WBDoIX83jrNuqxg927/iOVekta3u19Rt05bPPJpLKsGlP/SSb/Ft9IBg TtTga53YiEZ6N7M2SeC/uLXq76ZLadT4WYxfaViBfI978ZWJbWA604swJj0aXKU8 x3TqHMR77vqqpDpL2GIAb8vt9K14M1/9k5ecdOx3zN32vna9iApw7LCtiT+GACWf OvSeZhz8XP/svcImr0Ez =90QJ -----END PGP SIGNATURE----- --------------enig9F6AA889AFC061B5EFDB7FF6--