From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([92.198.50.35]:34144 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756619Ab2KWVmF (ORCPT ); Fri, 23 Nov 2012 16:42:05 -0500 Date: Fri, 23 Nov 2012 22:41:58 +0100 From: Sascha Hauer To: Laurent Pinchart Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, Archit Taneja , Benjamin Gaignard , Bryan Wu , Inki Dae , Jesse Barker , Kyungmin Park , Marcus Lorentzon , Maxime Ripard , Philipp Zabel , Ragesh Radhakrishnan , Rob Clark , Sebastien Guiriec , Sumit Semwal , Thomas Petazzoni , Tom Gall , Tomi Valkeinen , Vikas Sajjan Subject: Re: [RFC v2 0/5] Common Display Framework Message-ID: <20121123214158.GO10369@pengutronix.de> References: <1353620736-6517-1-git-send-email-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1353620736-6517-1-git-send-email-laurent.pinchart@ideasonboard.com> Sender: linux-media-owner@vger.kernel.org List-ID: Hi Laurent, On Thu, Nov 22, 2012 at 10:45:31PM +0100, Laurent Pinchart wrote: > From: Laurent Pinchart > > The CDF models this using a Russian doll's model. From the display controller > point of view only the first external entity (LVDS to DSI converter) is > visible. The display controller thus calls the control operations implemented > by the LVDS to DSI transmitter driver (left-most green arrow). The driver is > aware of the next entity in the chain, I can't find this in the code. I can see the video operations propagating upstream using the source field of struct display_entity, but how do the control operations propagate downstream? Am I missing something? 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 | From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sascha Hauer Date: Fri, 23 Nov 2012 21:41:58 +0000 Subject: Re: [RFC v2 0/5] Common Display Framework Message-Id: <20121123214158.GO10369@pengutronix.de> List-Id: References: <1353620736-6517-1-git-send-email-laurent.pinchart@ideasonboard.com> In-Reply-To: <1353620736-6517-1-git-send-email-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Laurent Pinchart Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, Archit Taneja , Benjamin Gaignard , Bryan Wu , Inki Dae , Jesse Barker , Kyungmin Park , Marcus Lorentzon , Maxime Ripard , Philipp Zabel , Ragesh Radhakrishnan , Rob Clark , Sebastien Guiriec , Sumit Semwal , Thomas Petazzoni , Tom Gall , Tomi Valkeinen , Vikas Sajjan Hi Laurent, On Thu, Nov 22, 2012 at 10:45:31PM +0100, Laurent Pinchart wrote: > From: Laurent Pinchart > > The CDF models this using a Russian doll's model. From the display controller > point of view only the first external entity (LVDS to DSI converter) is > visible. The display controller thus calls the control operations implemented > by the LVDS to DSI transmitter driver (left-most green arrow). The driver is > aware of the next entity in the chain, I can't find this in the code. I can see the video operations propagating upstream using the source field of struct display_entity, but how do the control operations propagate downstream? Am I missing something? 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 |