On Mon, Dec 24, 2012 at 11:35 AM, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > On Wednesday 19 December 2012 09:26:40 Rob Clark wrote: >> And, there are also external HDMI encoders (for example connected over >> i2c) that can also be shared between boards. So I think there will be >> a number of cases where CDF is appropriate for HDMI drivers. Although >> trying to keep this all independent of DRM (as opposed to just >> something similar to what drivers/gpu/i2c is today) seems a bit >> overkill for me. Being able to use the helpers in drm and avoiding an >> extra layer of translation seems like the better option to me. So my >> vote would be drivers/gpu/cdf. > > I don't think there will be any need for translation (except perhaps between > the DRM mode structures and the common video mode structure that is being > discussed). Add a drm_ prefix to the existing CDF functions and structures, > and there you go :-) well, and translation for any properties that we'd want to expose to userspace, etc, etc.. I see there being a big potential for a lot of needless glue BR, -R > The reason why I'd like to keep CDF separate from DRM (or at least not > requiring a drm_device) is that HDMI/DP encoders can be used by pure V4L2 > drivers. > >> > For DSI panels (or DSI-to-whatever bridges) it's of course another >> > story. You typically need a panel specific driver. And here I see the >> > main point of the whole CDF: decoupling display controllers and the >> > panel drivers, and sharing panel (and converter chip) specific drivers >> > across display controllers. Making it easy to write new drivers, as >> > there would be a model to follow. I'm definitely in favour of coming up >> > with some framework that would tackle that. > > -- > Regards, > > Laurent Pinchart > > -- > 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 -- 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
