On Thu, May 24, 2012 at 12:57:18PM +0300, Alexander Shishkin wrote:
> Richard Zhao <richard.zhao@xxxxxxxxxxxxx> writes:
>
> > We simply use bitmap to manage the ids.
> > Max count of devices CI_DEVS_POSSIBLE is 32.
>
> Actually, I've just noticed ida_simple_get()/ida_simple_remove() and
> they look like what we need for this purpose.
I think it's a good idea.
Thanks
Richard
>
> So we might as well just
>
> static DEFINE_IDA(ci_ida);
>
> and then in ci13xxx_add_device():
>
> id = ida_simple_get(&ci_ida, 0, 0, GFP_KERNEL);
> if (id < 0)
> return ERR_PTR(id);
>
> pdev = platform_device_alloc("ci_hdrc", id);
>
> etc. How about that?
>
> Regards,
> --
> Alex
>
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