On Wed, Aug 17, 2016 at 10:33:10AM +0100, Jose Abreu wrote: > Hi Russell, > > When using driver dw-hdmi in any other colorspace than RGB the > Y1, Y0 and YCC values are not correct. I confirmed in databook > that these registers are being written to the wrong offset (per > my databook they should be written in bits 0:1 and 7 instead of > bits 4:5). The piece of code in question is this: > > val = (frame.colorspace & 3) << 4 | (frame.scan_mode & 0x3); > > So colorspace is being written to bits 4 and 5 instead of bits 0, > 1 and 7. You're half-right. The above should be: val = (frame.colorspace & 3) | (frame.scan_mode & 3) << 4; I'm not sure why you're saying about bit 7 - this is labelled in the iMX6 manuals as "FC_AVICONF0_MISC" and "Frame composer AVI packet configuration bit" which is not a very useful description. So I'm not sure that bit 7 is part of the colorspace configuration. Unfortunately, all I have to go on is what's reproduced in the iMX6 TRMs as I have no access to the Synopsis databooks. -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
