[RFC]Question regrading TODO list for bcm2835 camera and bcm2835-audio

[Greg KH]

On Sun, Feb 26, 2017 at 11:56:04AM -0800, Michael Zoran wrote:
> I noticed that the TODO list for the RPI camera and the audio driver
> have fixing the issue of the runtime load order dependency between
> vchiq and the function driver(camera/audio). The TODO list mentions
> making the camera driver a platform driver.
> 
> I've been toying for awhile with the concept of making vchiq a bus
> driver that function drivers register with rather the making the camera
> a platform driver.  Meaning when vchiq loads, it walks the registered
> functions drivers and using the standard driver methods and bus
> matching methods it calls the probe function on the function drivers.
> 
> Taking this farther, one could also change vchiq to be a non-platform
> driver with the raspberrypi firmware driver also being a bus driver.  I
> have prototyped converting the firmware driver to be a bus driver, but
> perhaps it would be better to start from the other direction and
> convert the camera and audio drivers first.

Yes!  I hate platform drivers, they abuse the system in lots of places.
I strongly recommend bus-specific drivers and subsystems like this, so
this has my vote for "things that would be good to do" :)

thanks,

greg k-h