On Wednesday 23 February 2011 15:06:49 Aguirre, Sergio wrote: > <snip> > > > > The only static data I am concerned about are those that affect signal > > > integrity. > > > > > After thinking carefully about this I realized that there is really > > > only one setting that is relevant to that: the sampling edge. The > > > polarities do not matter in this. > > I respectfully disagree.
So do I. Sampling edge is related to polarities, so you need to take both into account. > AFAIK, There is not such thing as sampling edge configuration for MIPI > Receivers, and the polarities DO matter, since it's a differential > signal. > > > Ok, this is much better! I'm still not perfectly happy having to punish > > all just for the sake of a couple of broken boards, but I can certainly > > much better live with this, than with having to hard-code each and every > > bit. Thanks, Hans! > > > > So, I think, we can proceed with this, let's see the code now, shall > > we?;) > > > > Currently soc-camera auto-configures the following parameters: > > > > hsync polarity > > vsync polarity > > data polarity > > master / slave mode What do you mean by master/slave mode ? > > data bus width The data bus width can already be configured through the media bus format. Do we need to set it explicitly ? > > pixel clock polarity > > > > (see include/media/soc_camera.h::soc_camera_bus_param_compatible() and > > drivers/media/video/soc_camera.c::soc_camera_apply_sensor_flags()). > > Removing the pixclk polarity, the rest we can use as a basis for a new > > subdev-based implementation. > > Don't we need to move this out from soc_camera and make it available in > v4l2_subdev ops? (I'm talking about both parallel and the "new" MIPI > support) > > That way both SoC_Camera, and Media Controller frameworks can use that. -- Regards, Laurent Pinchart -- 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
