Re: [PATCH 2/2] uio: add an of_genirq driver

quoted

For x86 it's not defined at all. But as this code is for the PowerPC,

No, it isn't. What makes you say that? The Kconfig entry doesn't depend
on PowerPC. I compiled it on x86...

It depends on OF. You could compile on x86? Have to check that...

quoted

where using NO_IRQ seems still to be OK.

No. uio_pdrv_genirq can be used on all platforms, and not all platforms have
NO_IRQ. NO_IRQ can be used in platform specific code only.

Well, the wrapper uses irq_of_parse_and_map(). So far, it returns NO_IRQ if an
IRQ was not specified (or not found). I could check if there was an
interrupt-property at all, so I can distinguish between 'not specified' and
'not found'. Then, UIO_IRQ_NONE would only be used, if there was none
specified. Otherwise it will always be the result from irq_of_parse_and_map(),
whatever that is (even NO_IRQ). Is this what you have in mind?

Regards,

   Wolfram

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