From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753992Ab3H1SzH (ORCPT ); Wed, 28 Aug 2013 14:55:07 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:54787 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753328Ab3H1SzF (ORCPT ); Wed, 28 Aug 2013 14:55:05 -0400 Date: Wed, 28 Aug 2013 20:54:59 +0200 From: Sascha Hauer To: Fabio Estevam Cc: Greg Kroah-Hartman , Philipp Zabel , Shawn Guo , linux-kernel , Fabio Estevam Subject: Re: [PATCH] imx-drm: Fix probe failure Message-ID: <20130828185459.GV30088@pengutronix.de> References: <1377657163-6606-1-git-send-email-festevam@gmail.com> <20130828052758.GQ30088@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-IRC: #ptxdist @freenode X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-Uptime: 20:54:26 up 4 days, 4:25, 38 users, load average: 0.00, 0.04, 0.11 User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:5054:ff:fec0:8e10 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 28, 2013 at 11:39:11AM -0300, Fabio Estevam wrote: > On Wed, Aug 28, 2013 at 2:27 AM, Sascha Hauer wrote: > > > Nack. We need the references to prevent that encoders/connectors are > > (de)registered while the device is active. Simply dropping this code is > > no solution. > > Any suggestions about a proper way of handling this? > > After b5dc0d10, imx_drm_device_get() is called from > imx_drm_driver_load(), which increments the 'references' very early > now. Do the open/close callbacks work? Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |