> Introduce an irq_chip and irq_domain for menelaus driver. Following
> patches will convert uses to traditional request_threaded_irq().
>
> While at that, some better error handling had to be added, so we could
> free irq descs we allocated.
>
> Tested-by: Aaro Koskinen <aaro.koskinen@xxxxxx>
> Signed-off-by: Felipe Balbi <balbi@xxxxxx>
> ---
> drivers/mfd/menelaus.c | 127 ++++++++++++++++++++++++++++++++++++++++++++++---
<snip>
> + irq_domain_add_legacy(node, MENELAUS_NR_IRQS, irq_base, 0,
> + &irq_domain_simple_ops, m);
When will this driver become DT compliant?
I think you should use irq_domain_add_simple() to future proof
yourself a little.
> + m->irq_base = irq_base;
> +
> + for (i = irq_base; i < irq_base + MENELAUS_NR_IRQS; i++) {
> + irq_set_chip_data(i, m);
> + irq_set_chip_and_handler(i, &menelaus_irq_chip,
> + handle_simple_irq);
> + irq_set_nested_thread(i, 1);
> + set_irq_flags(i, IRQF_VALID);
This assumes that this h/w only exists on ARM platforms. Is that true?
> + }
This is usually completed in an *_irq_map() operation call-back.
I can't see where you reverse this process either (usually *_irq_unmap())
<snip>
> - mutex_init(&m->lock);
> -
This doesn't belong in this patch.
It should have been removed with the final use of the lock was.
<snip>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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