Hi, I know the title looks crazy, but here is our problem: In our SoC based ISP, the hardware can be divide to several blocks. Some blocks can do color space conversion(raw to YUV interleave/planar), others can do the pixel re-order(interleave/planar/semi-planar conversion, UV planar switch). We use one subdev to describe each of them, then came the problem: How can we express the planar formats with mediabus format code? I understand at beginning, media-bus was designed to describe the data link between camera sensor and camera controller, where sensor is described in subdev. So interleave formats looks good enough at that time. But now as Media-controller is introduced, subdev can describe a much wider range of hardware, which is not limited to camera sensor. So now planar formats are possible to be passed between subdevs. I think the problem we meet can be very common for SoC based ISP solutions, what do you think about it? there are many possible solution for it: 1> change the definition of v4l2_subdev_format::format, use v4l2_format; 2> extend the mediabus format code, add planar format code; 3> use a extra bit to tell the meaning of v4l2_mbus_framefmt::code, is it in mediabus-format or in fourcc Do you have any suggestions? Thanks a lot! -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
