On 03/12/2013 07:36 PM, Alexander Aring wrote:
> I don't know if this patch is necessary. I think Alan told about this
> some days ago. In my case I setting my irq_type with a device_tree and I
> know other boards, which are not using a device_tree, do the same in the
> boardspecific code file in arch/arm/**/*_board.c.

The at86rf230 supports generating multiple types of IRQ (eg: rising and
falling). His patch makes it configurable, in case it's being connected
to a board or SoC that is not as configurable.

In the device tree or board file (in your example), you're setting the
IRQ type that the board or SoC should expect. This patch sets the IRQ
type that the at86rf230 will generate.

> I would only add this, if this is really necessary to setup irq_type at
> probing time.

If you want something other than the default from the at86rf230, then it
is necessary.

Alan.


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