Hi,
On Wed, Oct 23, 2013 at 11:10:48AM -0700, David Cohen wrote:
> >My idea is always use threaded irq and passing flags into request.
> >Like as:
> >unsigned long flags = res->flags & IORESOURCE_BITS;
> >...
> >request_threaded_irq(max->irq, serial_m3110_irq, IRQF_ONESHOT | flags, "max3110", max);
>
>
> Oh, maybe we were talking about different things afterall :)
> The reason this struct plat_max3110 was created is to allow platform
> code (located under arch/x86/platform/intel-mid/device_libs/) to define
> the irq edge type.
> When I saw your comment I though you were referring to struct resource
> (which has IORESOURCE_IRQ_* flags). But unlike platform_device,
> spi_device has no struct resource * to replace the need of struct
> plat_max3110.
>
> OTOH your suggestion can replace this piece of code:
>
> @@ -68,6 +69,7 @@ struct uart_max3110 {
> u8 clock;
> u8 parity, word_7bits;
> u16 irq;
> + u16 irq_edge_triggered;
max3110 is already edge triggered:
495 ret = request_irq(max->irq, serial_m3110_irq,
496 IRQ_TYPE_EDGE_FALLING, "max3110", max);
it would be nice a threaded IRQ instead of using a singlethread
workqueue, though.
--
balbi
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