Hi Hans and Dave, On Fri, Jul 22, 2016 at 11:46:59AM +0200, Hans Verkuil wrote: > > On a related note, if putting together a system with IMX219 or similar > > producing Bayer raw 10, the data on the CSI2 bus is one of the > > V4L2_PIX_FMT_SRGGB10P formats. What's the correct way to reflect that > > from the sensor subdevice in an MEDIA_BUS_FMT_ enum? > > The closest is MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE (or LE), but the data > > isn't padded (the Pi CSI2 receiver can do the unpacking and padding, but > > that just takes up more memory).|||| Or is it MEDIA_BUS_FMT_SBGGR10_1X10 > > to describe the data on the bus correctly as 10bpp Bayer, and the odd > > packing is ignored. Or do we need new enums? > > Just add new enums to media-bus-format.h. It should be clear from comments > and/or > the naming of the enum what the exact format it, so you'll need to think about > that carefully. Otherwise it's no big deal to add new formats there.
The existing drivers that use 10-bit raw bayer formats on serial busses (such as CSI-2) use 1X10 variants of the media bus formats. That's perhaps not the neatest possible way to solve that, but that's what existing drivers do. And doing differently breaks things. -- Regards, Sakari Ailus e-mail: sakari.ai...@iki.fi XMPP: sai...@retiisi.org.uk -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
