On Wed, Nov 25, 2015 at 10:46:49AM -0800, Curt Brune wrote:
> +     /* Check if the ports have an ordering, defined by 'cell-index' */
> +     if (((indexp = (u32*)of_get_property(np, "cell-index", &len)) != NULL) 
> &&
> +         (len == sizeof(u32)))
> +             index = *indexp;
> +
>       /* Add port, irq will be dealt with later. We passed a translated
>        * IO port value. It will be fixed up later along with the irq
>        */
>       if (tsi && !strcmp(tsi->type, "tsi-bridge"))
> -             return add_legacy_port(np, -1, UPIO_TSI, addr, addr,
> +             return add_legacy_port(np, index, UPIO_TSI, addr, addr,
>                                      NO_IRQ, legacy_port_flags, 0);
>       else
> -             return add_legacy_port(np, -1, UPIO_MEM, addr, addr,
> +             return add_legacy_port(np, index, UPIO_MEM, addr, addr,
>                                      NO_IRQ, legacy_port_flags, 0);

What does this do if the value in cell-index is a duplicate. or the port
with that number is already created some other way?  Are the numbers in
cell-index global anyway, or relative to some parent device (I couldn't
find the documentation for this).


Segher
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