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.
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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