[PATCH 6/6] fbd : Port to RTEMS

[Christian Mauderer]

On 30/06/2019 18:29, Vijay Kumar Banerjee wrote:
>     > @@ -366,6 +374,9 @@ driver_t fbd_driver = {
>     >  devclass_t   fbd_devclass;
>     > 
>     >  DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0);
>     > +#ifdef __rtems__
>     > +DRIVER_MODULE(fbd, am335x_lcd, fbd_driver, fbd_devclass, 0, 0);
> 
>     Why is this necessary in this case? I don't see a similar connection in
>     FreeBSD.
> 
> the fbd needs to be linked to the am335x_lcd which provides the fb0 device
> and the fbd needs to attach to fb0. 

It seems that this connection (or a similar one) hasn't been there on
FreeBSD. So I wonder why it should be necessary on RTEMS.

Note that the situation is a bit different from the one of the i2c bus.
There your driver implemented a base for a bus system. Therefore the
generic bus had been connected to a device specific driver. I'm not sure
that's the case here.

It's quite possible that you just have to link the fbd with a line like
the following in nexus-devices.h:

    SYSINIT_MODULE_REFERENCE(fbd);

Best regards

Christian