On Sat, 11 Jan 2014 18:18:32 +0000 Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > On Thu, Jan 09, 2014 at 12:04:48PM +0100, Jean-Francois Moine wrote: > > This patch uses the tda998x video format tied to the CEA mode. > > This reduces the number of i2c exchanges. > > It is my understanding that one of the major design goals of this driver > is to avoid the use of such a table, and therefore this change is > undesirable by the original driver authors. This is more a comment for > Rob to pick up on. I retrieved a message from Rabeeh who got this description from NXP (http://www.solid-run.com/phpbb/viewtopic.php?f=9&t=1205&start=10 Thu Mar 28, 2013 10:59 am): 1. write register FF of CEC device to &h87. (68ff = 87h) -> activate all clock tree inc HDMI ones so you can then use HDMI device 2. select page 00 of HDMI device : write 00 in FF (e0ff =00h) 3. write register A0 of HDMI device to select predefined format : (e0a0 = 06h) -> select a predefined 1080p60 format 4. write registers A5 and A6 with total number of pixels per line (or greater value) (e0a5 = 08h) (e0a6 = 97h) for example 5. write register TBG_CTRL1 of HDMI device to select resync method (e0cb = 7ch) -> select 6. write registers VIP_CTRL to configure RGB input ports : (e020 = 45h) -> select VP port configuration (e021 = 01h) (e022 = 23h) 7. write register VIP_CTRL3 to 20h vto select external SP sync method (e023 = 20h) -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
