Am Freitag, den 07.08.2015, 14:42 +0200 schrieb Thierry Reding: > On Fri, Jun 26, 2015 at 12:27:08PM +0200, Lucas Stach wrote: > > From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> > > > > Can you be more specific here? What kind of bus format is this? The bus_format contains more information than just the bpc. In this case, the SPWG default format for RGB666 via 3-pair LVDS specifies how the 18 color bits are serialized in the 7 time slots for each pixel clock. See http://linuxtv.org/downloads/v4l-dvb-apis/subdev.html#v4l2-mbus-pixelcode-rgb-lvds for details. > Why is it that .bpc = 6 doesn't work here? In this case a LVDS driver could indeed still decide itself that bpc == 6 should be translated to MEDIA_BUS_FMT_RGB666_1X7X3_SPWG (and not MEDIA_BUS_FMT_RGB666_1X18, or MEDIA_BUS_FMT_RGB666_1X24_CPADHI, for example). But in the bpc == 8 case there are two different standard ways to order the bits (SPWG/VESA vs JEIDA). For consistency, I'd prefer to set bus_format to the correct value everywhere. regards Philipp _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
