Am Freitag, 17. Februar 2012, 00:25:51 schrieb Laurent Pinchart: > Hello everybody, > > First of all, I would like to thank all the attendees for their > participation in the mini-summit that helped make the meeting a success. > > Here are my consolidated notes that cover both the Linaro Connect meeting > and the ELC meeting. They're also available at > http://www.ideasonboard.org/media/meetings/. > > > Kernel Display and Video API Consolidation mini-summit at ELC 2012 > ------------------------------------------------------------------ > [...] > *** Display Panel Drivers *** > > Goal: Sharing display panel drivers between display controllers from > different vendors. > > Panels are connected to the display controller through a standard bus > with a control channel (DSI and eDP are two major such buses). Various > vendors have created proprietary interfaces for panel drivers: > > - TI on OMAP (drivers/video/omap2/displays). > - Samsung on Exynos (drivers/video/exynos). > - ST-Ericsson on MCDE > (http://www.igloocommunity.org/gitweb/?p=kernel/igloo- > kernel.git;a=tree;f=drivers/video/mcde) > - Renesas is working on a similar interface for SH Mobile. > > HDMI-on-DSI transmitters, while not panels per-se, can be supported > through the same API. > > A Low level Linux Display Framework (https://lkml.org/lkml/2011/9/15/107) > has been proposed and overlaps with this topic. > > For DSI, a possible abstraction level would be a DCS (Display Command > Set) bus. Panels and/or HDMI-on-DSI transmitter drivers would be > implemented as DCS drivers. > > Action points: > - Marcus to work on a proposal for DCS-based panels (with Tomi Valkeinen > and Morimoto-san). It would also be interesting to see something similar for MIPI-DBI (type B for me) [aka rfbi on omap], as most epaper displays use this to transmit data and currently use half-baked interfaces. So hopefully I'll be able to follow the discussion and can then try to convert your findings to the dbi case. Heiko _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
